UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q/A (AMENDMENT NO. 2) (Mark One) [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2004 or [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from ___ to ___ Commission file number 0-12957 ENZON PHARMACEUTICALS, INC. (Exact name of registrant as specified in its charter) DELAWARE 22-2372868 (State or other jurisdiction of (I.R.S. Employer Identification No.) incorporation or organization) 685 Route 202/206, Bridgewater, New Jersey 08807 (Address of principal executive offices) (Zip Code) (908) 541-8600 (Registrant's telephone number, including area code) Not Applicable (Former name, former address and former fiscal year, if changed since last report) ---------- Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes |X| No |_| Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act). Yes |X| No |_| Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date 43,793,494.

EXPLANATORY NOTE This quarterly report on Form 10-Q/A amends and restates our original quarterly report on Form 10-Q for the period ended September 30, 2004 as of the date of filing the original Form 10-Q on November 15, 2004 as amended by the filing on Form 10-Q/A on November 17, 2004 (collectively, the "Original Quarterly Report"). We are amending and restating our original quarterly report on Form 10-Q in its entirety with respect to our accounting for the application of hedge accounting for a zero cost protective collar arrangement under Statement of Financial Accounting Standards No. 133, "Accounting for Derivative Instruments and Hedging Activities", as amended (SFAS No. 133) and certain changes identified in the accounting for certain third party agreements. The protective collar arrangement was entered into during August 2003 to reduce the exposure associated with changes in the fair value of the 1.5 million shares of common stock of NPS Pharmaceuticals, Inc. ("NPS") we received in connection with a June 2003 merger termination agreement. This amended quarterly report on Form 10-Q/A for the period ended September 30, 2004 reflects corrections and restatements of the following financial statements: (a) condensed consolidated balance sheet as of September 30, 2004; (b) condensed consolidated statement of operations for the period ended September 30, 2004; and (c) condensed consolidated statement of cash flows for the period ended September 30, 2004. We are also filing under separate documents amended quarterly reports on Form 10-Q/A for the quarter and fiscal year-to-date periods ended December 31, 2004 and March 31, 2005. For a more detailed description of corrections and restatements made to the financial statements, see Note 2, "Restatement and Reclassifications of Condensed Consolidated Financial Statements" to the accompanying notes to the condensed consolidated financial statements. In addition to the changes discussed above, we have also made other changes, including but not limited to the following to reflect the changes discussed herein: (a) other income for the fiscal period ended September 30, 2004 under "Item 2, Management's Discussion and Analysis of Financial Condition and Results of Operations" (b) unrealized loss on securities that arose during the fiscal period and our total comprehensive loss for the fiscal period ended September 30, 2004 in Note 3, "Comprehensive Income", to the accompanying notes to the condensed consolidated financial statements; (c) unrealized gain recognized in other income and recorded in accumulated other comprehensive income for the fiscal period ended September 30, 2004 with respect to the sale and repurchase of shares of NPS in Note 12, "Derivative Instruments", to the accompanying notes to the condensed consolidated financial statements (d) total gross deferred tax assets, and income tax provision for the fiscal period ended September 30, 2004 in Note 10, "Income Taxes", to the accompanying notes to the condensed consolidated financial statements; (e) net loss and net loss per common share for the fiscal period ended September 30, 2004 in Note 4, "Earnings Per Common Share", to the accompanying notes to the condensed consolidated financial statements; and (f) pro forma net loss and net loss per common share for the fiscal period ended September 30, 2004 in Note 5, "Stock Based Compensation", to the accompanying notes to the condensed consolidated financial statements. This amended and restated quarterly report on Form 10-Q/A is as of the end of our fiscal period September 30, 2004 as required by Form 10-Q or as of the date of filing the original Form 10-Q. It does not update any of the statements contained therein for subsequent events or forward looking statements. This quarterly report on Form 10-Q/A contains forward looking statements, which were made at the time the original quarterly report on Form 10-Q was filed on November 15, 2004 and must be considered in light of any subsequent events and subsequent statements including forward looking statements in any written statement subsequent to the filing of the original quarterly report on Form 10-Q, including statements made in filings on current reports on Form 8-K. 2

PART I FINANCIAL INFORMATION ITEM 1. FINANCIAL STATEMENTS ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED BALANCE SHEETS (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) (UNAUDITED) SEPTEMBER 30, 2004 JUNE 30, 2004 ------------------ ------------- (Restated) (Note 2) ASSETS Current assets: Cash and cash equivalents $ 76,055 $ 91,532 Short-term investments 44,243 27,119 Investment in equity securities 32,670 23,625 Accounts receivable, net 26,500 25,977 Inventories 14,108 11,215 Deferred tax and other current assets 15,279 11,994 --------- --------- Total current assets 208,855 191,462 --------- --------- Other assets: Property and equipment, net 34,468 34,859 Marketable securities 61,273 67,582 Investments in equity securities 6,406 14,281 Amortizable intangible assets, net 189,588 194,067 Goodwill 150,985 150,985 Deferred tax and other assets 67,648 69,174 --------- --------- 510,368 530,948 --------- --------- Total assets $ 719,223 $ 722,410 ========= ========= LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Accounts payable $ 9,169 $ 8,663 Accrued expenses 18,190 23,001 --------- --------- Total current liabilities 27,359 31,664 --------- --------- Other liabilities 1,407 1,655 Notes payable 400,000 400,000 --------- --------- 401,407 401,655 --------- --------- Commitments and contingencies Stockholders' equity: Preferred stock-$.01 par value, authorized 3,000,000 shares; no shares issued and outstanding at September 30, 2004 and at June 30, 2004 -- -- Common stock-$.01 par value, authorized 90,000,000 shares; issued and outstanding 43,793,464 shares at September 30, 2004 and 43,750,934 shares at June 30, 2004 438 438 Additional paid-in capital 322,565 322,486 Accumulated other comprehensive loss (5,329) (7,330) Deferred compensation (3,346) (3,571) Accumulated deficit (23,871) (22,932) --------- --------- Total stockholders' equity 290,457 289,091 --------- --------- Total liabilities and stockholders' equity $ 719,223 $ 722,410 ========= ========= (*) Condensed from audited consolidated financial statements. The accompanying notes are an integral part of these unaudited condensed consolidated financial statements. 3

ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (IN THOUSANDS, EXCEPT PER SHARE DATA) (UNAUDITED) THREE MONTHS ENDED SEPTEMBER 30, --------------------------- 2004 2003 ---------- ---------- (Restated) (Note 2) Revenues: Product sales, net $ 27,527 $ 24,961 Manufacturing revenue 2,513 1,604 Royalties 10,115 13,811 Contract revenue 299 268 -------- -------- Total revenues 40,454 40,644 -------- -------- Costs and expenses: Cost of sales and manufacturing revenue 10,901 10,912 Research and development 9,974 6,551 Selling, general and administrative 12,199 11,209 Amortization of acquired intangible assets 3,358 3,358 -------- -------- Total costs and expenses 36,432 32,030 -------- -------- Operating income 4,022 8,614 -------- -------- Other income (expense): Investment income, net 770 474 Interest expense (4,957) (4,957) Other, net (1,411) (2,513) -------- -------- (5,598) (6,996) -------- -------- (Loss) income before tax provision (1,576) 1,618 Income tax (benefit) provision (637) 482 -------- -------- Net (loss) income $ (939) $ 1,136 ======== ======== Basic (loss) earnings per common share $ (0.02) $ 0.03 ======== ======== Diluted (loss) earnings per common share $ (0.02) $ 0.03 ======== ======== Weighted average number of common shares outstanding - basic 43,470 43,290 ======== ======== Weighted average number of common shares and dilutive potential common shares outstanding 43,470 43,629 ======== ======== The accompanying notes are an integral part of these unaudited condensed consolidated financial statements. 4

ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (IN THOUSANDS) (UNAUDITED) THREE MONTHS ENDED SEPTEMBER 30, ------------------------- 2004 2003 ---------- ---------- (Restated) (Note 2) Cash flows from operating activities: Net (loss) income ($939) $ 1,136 Adjustments to reconcile net (loss) income to net cash (used in ) provided by operating activities: Depreciation and amortization 5,652 5,925 Non-cash expense for issuance of common stock 166 344 Gain on sale of equity investment (163) -- Non-cash income relating to equity collar arrangement 1,321 2,513 Amortization of debt issue costs 457 -- Amortization of bond premium/discount 737 (126) Deferred income taxes (335) 88 Changes in operating assets and liabilities (10,728) (5,991) -------- -------- Net cash (used in) provided by operating activities (3,832) 3,889 -------- -------- Cash flows from investing activities: Purchase of property and equipment (783) (1,649) Proceeds from sale of marketable securities 7,830 3,000 Purchase of marketable securities (22,830) (8,950) Maturities of marketable securities 4,000 -- -------- -------- Net cash used in investing activities (11,783) (7,599) -------- -------- Cash flows from financing activities: Proceeds from issuance of common stock 138 -- -------- -------- Net cash provided by financing activities 138 -- -------- -------- Net decrease in cash and cash equivalents (15,477) (3,710) Cash and cash equivalents at beginning of period 91,532 66,752 -------- -------- Cash and cash equivalents at end of period $ 76,055 $ 63,042 ======== ======== The accompanying notes are an integral part of these unaudited condensed consolidated financial statements. 5

ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (1) ORGANIZATION AND BASIS OF PRESENTATION The unaudited condensed consolidated financial statements have been prepared from the books and records of Enzon Pharmaceuticals, Inc. (the "Company") and its subsidiaries in accordance with United States generally accepted accounting principles for interim financial information pursuant to Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required for complete annual financial statements. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. In the opinion of management, all adjustments (consisting only of normal and recurring adjustments) considered necessary for a fair presentation have been included. See Note 2 for discussion of restatement. Interim results are not necessarily indicative of the results that may be expected for the year. The interim consolidated financial statements should be read in conjunction with the condensed consolidated financial statements and the notes thereto included in the Company's latest annual report on Form 10-K/A (Amendment No. 2). (2) RESTATEMENT AND RECLASSIFICATIONS OF CONDENSED CONSOLIDATED FINANCIAL STATEMENTS In August and September 2005, the Company concluded that its previously issued financial statements and other financial information for the quarter and fiscal year-to-date periods ended September 30, 2004, December 31, 2004 and March 31, 2005 required restatement with respect to its accounting for a derivative hedging instrument and certain third party agreements. The Company has restated the comparable fiscal periods in a previously filed amendment to the respective Form 10-Q or 10-K due to computational changes in the valuation of and/or the application of hedge accounting for a zero cost protective collar arrangement under Statement of Financial Accounting Standards No. 133, "Accounting for Derivative Instruments and Hedging Securities," as amended. The comparable fiscal periods included in this quarterly report on Form 10-Q/A, reflect the restated amounts. The restatement is primarily due to the accounting for the application of hedge accounting for a zero cost protective collar arrangement under Statement of Financial Accounting Standards No. 133, "Accounting for Derivative Instruments and Hedging Activities", as amended (SFAS No. 133). As described in Note 12, "Derivative Instruments", the Company entered into a zero cost protective ("Collar") arrangement in August 2003 to reduce its exposure to changes in fair value associated with 1.5 million common shares of NPS Pharmaceutical, Inc. ("NPS"), which the Company received in connection with the termination of a proposed merger. Pursuant to the terms of the Merger Termination Agreement, the Company was restricted as to the number of shares it could sell on a quarterly basis. Under the collar arrangement, the Company was required to deliver unrestricted freely trading shares of NPS common stock upon the maturity date of the Collar, as well as maintain 1.5 million of shares of NPS on account with the financial institution as collateral during the term of the Collar agreement. Therefore, during the period of November 2003 to October 2004, the Company sold and simultaneously repurchased up to 1.5 million shares of NPS common stock quarterly in order to remove the restriction while maintaining the collateralized shares. In August 2005, the Company determined that the initial sale of NPS stock in November 2003 resulted in the termination of the existing hedging relationship and that the Company was unable to meet certain fair value hedging criteria pursuant to SFAS No. 133 at that time to re-designate the hedging relationship. Accordingly, the Company terminated its hedge accounting treatment in November 2003, which resulted in the change in unrealized gains and losses on the NPS common stock underlying the derivative hedging instrument previously included in other income (expense) being recorded in accumulated other comprehensive income (loss) on the condensed consolidated balance sheet. The accounting change corrects a misallocation between other income (expense) and accumulated other comprehensive income (loss) for the quarters and fiscal year-to-date periods ended September 30, 2004, December 31, 2004, and March 31, 2005. The Company has also made certain reclassifications between non-current and current assets and liabilities of a portion of the balance associated with the Collar and NPS common stock to reflect the timing of the maturity of the Collar instrument and related sale of NPS common stock. Additionally, the Company has determined that certain third party agreements were not accounted for correctly during the fiscal quarters ended September 30, 2004, December 31, 2004 and March 31, 2005. The resulting changes are a reduction of research and development expense during the fiscal quarters ended September 30, 2004, December 31, 2004 and March 31, 2005 and an increase to revenues during fiscal quarter ended March 31, 2005. 6

ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) The following tables show the impact of the restatement on the relevant captions from the Company's condensed consolidated financial statements as of and for the periods indicated. These tables contain only the changed balances and do not represent the complete condensed consolidated balance sheet as of such period or condensed consolidated statements of operations for the periods then ended (in thousands, except per share amounts). CHANGES TO CONDENSED CONSOLIDATED BALANCE SHEET SEPTEMBER 30, 2004 Previously Reported Adjustments Restated ----------- ----------- -------- Investment in equity securities $- $32,670 $32,670 Deferred tax and other current assets $15,207 72 15,279 Total current assets 176,113 32,742 208,855 Investments in equity securities 39,076 (32,670) 6,406 Non-current deferred tax and other assets 67,677 (29) 67,648 Total non-current assets 543,067 (32,699) 510,368 Total assets 719,180 43 719,223 Accumulated other comprehensive loss (3,472) (1,857) (5,329) Accumulated deficit (25,771) 1,900 (23,871) Total stockholders' equity 290,414 43 290,457 Total liabilities and stockholders' equity 719,180 43 719,223 CHANGES TO CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS Three Months ended September 30, 2004 ----------------------------------------------- Previously Reported Adjustments Restated ----------- ----------- -------- Research and development $10,046 $ (72) $ 9,974 Total costs and expenses 36,504 (72) 36,432 Operating income 3,950 72 4,022 Other, net (670) (741) (1,411) Total other income (expense) (4,857) (741) (5,598) Income (loss) before tax provision (benefit) (907) (669) (1,576) Income tax provision (benefit) (363) (274) (637) Net (loss) income (544) (395) (939) Basic (loss) earnings per common share (0.01) (0.01) (0.02) Diluted (loss) earnings per common share (0.01) (0.01) (0.02) The restatement did not result in any changes to cash and cash equivalents as of September 30, 2004 or any changes to the net cash flows from operations, investing or financing activities in the condensed consolidated statement of cash flows for the period ended September 30, 2004 although it did result in certain reclassifications among certain components of net cash flow from operations. As a result of the adjustments discussed above, modifications were required to previously filed footnotes as follows: Note 3, "Comprehensive Income", Note 4, "Earnings Per Common Share", Note 5, "Stock-Based Compensation", Note 10, "Income Taxes" and Note 12, "Derivative Instruments". 7

ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (3) COMPREHENSIVE INCOME Statement of Financial Accounting Standards ("SFAS") No. 130, "Reporting Comprehensive Income", requires unrealized gains and losses on the Company's available-for-sale securities to be included in other comprehensive income. The following table reconciles net (loss) income to comprehensive income (in thousands): THREE MONTHS ENDED SEPTEMBER 30, -------------------------------------- 2004 2003 ----------------- ---------------- (Restated) Net (loss) income ($939) $1,136 Other comprehensive income: Unrealized gain on securities arising during the period, net of tax 1,697 1,628 Reclassification adjustment for gain included in net income, net of tax 304 -- ----------------- ---------------- Total other comprehensive income $2,001 $1,628 ----------------- ---------------- Comprehensive income $1,062 $2,764 ================= ================ (4) EARNINGS PER COMMON SHARE Basic earnings per share is computed by dividing the net (loss) income by the weighted average number of shares of Common Stock issued and outstanding during the periods. For purposes of calculating diluted earnings per share for the three months ended September 30, 2004 and 2003, the denominator includes both the weighted average number of shares of Common Stock outstanding and the number of dilutive Common Stock equivalents. During the three months ended September 30, 2004 the exercise or conversion of approximately 353,000 dilutive potential common shares are not included for purposes of the diluted loss per share calculation. The number of dilutive Common Stock equivalents includes the effect of non-qualified stock options calculated using the treasury stock method. The number of shares issuable upon conversion of the Company's 4.5% Convertible Subordinated Notes due 2008 (the "Notes") and the effect of the vesting of certain restricted stock and certain stock options using the treasury stock method have not been included as the effect of their inclusion would be antidilutive. As of September 30, 2004, the Company had 9,472,000 dilutive potential common shares outstanding that could potentially dilute future earnings per share calculations. 8

ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) The following table reconciles the basic and diluted earnings per share calculations (in thousands): THREE MONTHS ENDED SEPTEMBER 30, ------------------------------------- 2004 2003 ----------------- ---------------- (Restated) Net (loss) income ($939) $1,136 Weighted average number of common shares outstanding - basic 43,470 43,290 Effect of dilutive common stock equivalents: Exercise of stock options - 339 ----------------- ---------------- 43,470 43,629 ================= ================ (5) STOCK-BASED COMPENSATION As permitted by Statement of Financial Accounting Standards ("SFAS") No. 123, "Accounting for Stock-Based Compensation", the Company accounts for stock-based compensation arrangements in accordance with the provisions of Accounting Principals Board ("APB") Opinion No. 25 "Accounting for Stock Issued to Employees" and related interpretations. Compensation expense for stock options issued to employees is based on the difference on the date of grant between the fair value of the Company's stock and the exercise price of the option. Stock-based compensation reflected in net (loss) income is attributed to restricted stock. No stock option-based employee compensation cost is reflected in net (loss) income, as all options granted to employees had exercise prices equal to the market value of the underlying common stock at the date of grant. The following table illustrates the effect on net (loss) income and earnings (loss) per share if the Company had applied the fair value recognition provisions of SFAS No. 123 to stock-based compensation (in thousands, except per share data): THREE MONTHS ENDED SEPTEMBER 30, -------------------------------------- 2004 2003 ------------------ ------------- (Restated) Net (loss) income ($939) $1,136 Add stock-based employee compensation expense included in reported net (loss) income, net of tax (1) 100 176 Deduct total stock-based employee compensation expense determined under fair-value-based method for all awards, net of tax (1) (3,180) (2,221) ------------------ ------------- Pro forma net loss ($4,019) ($909) ================== ============= Earnings (loss) per common share - basic: As reported ($0.02) $0.03 Pro forma ($0.09) ($0.02) Earnings (loss) per common share - diluted: As reported ($0.02) $0.03 Pro forma ($0.09) ($0.02) (1) Information for 2004 and 2003 has been adjusted for taxes using estimated tax rates of 40% and 37%, respectively. 9

ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (6) INVENTORIES The composition of inventories is as follows (in thousands): SEPTEMBER 30, 2004 JUNE 30, 2004 ------------------ ------------- Raw materials $ 4,827 $ 3,143 Work in process 3,651 3,716 Finished goods 5,630 4,356 ------------------ ------------- $14,108 $11,215 ================== ============= The Company has recently recalled three lots of ONCASPAR. The Company has established a sales return reserve of $415,000 in accrued expenses at September 30, 2004 with respect to the related recall. In addition, the Company wrote off $195,000 of ONCASPAR inventory for the three months ended September 30, 2004. (7) INTANGIBLE ASSETS Intangible assets consist of the following (in thousands): SEPTEMBER 30, ESTIMATED 2004 USEFUL LIVES ------------ ------------ Product Patented Technology $ 64,400 12 years Manufacturing Patent 18,300 12 years NDA Approval 31,100 12 years Trade name and other product rights 80,000 15 years Manufacturing Contract 2,200 3 years Patent 2,092 1-5 years Product Acquisition Costs 26,194 10-14 years ------------- 224,286 Less: Accumulated amortization 34,698 ------------- $189,588 ============= Amortization charged to operations relating to intangible assets totaled $4.5 million including $1.1 million which is classified in cost of sales and manufacturing revenue for both the three months ended September 30, 2004 and 2003. Amortization expense for these intangibles and certain other product acquisition costs for the next five fiscal years is expected to be approximately $15.5 million per year. 8) GOODWILL On November 22, 2002, the Company acquired the North American rights and operational assets associated with the development, manufacture, sales and marketing of ABELCET(R) (Amphotericin B Lipid Complex Injection) (the "North American ABELCET business") from Elan Corporation, plc ("Elan"), for $360.0 million plus acquisition costs of approximately $9.3 million. The acquisition is being accounted for by the purchase method of accounting in accordance with SFAS No. 141 "Business Combinations". The amount assigned to goodwill in connection with the ABELCET product line acquisition was recorded at $151.0 million. In accordance with SFAS No. 142, "Goodwill and Other Intangible Assets," goodwill is not amortized, but rather is reviewed at least annually for impairment. For income tax purposes, the entire amount of goodwill is deductible and is being amortized over a 15 year period. (9) CASH FLOW INFORMATION The Company considers all highly liquid securities with original maturities of three months or less to be cash equivalents. Cash payments for interest were approximately $9.0 million for the three months ended September 30, 2004 and September 30, 2003. Income tax payments for the three months ended September 30, 2004 and 2003, respectively were $271,000 and $2.5 million. 10

ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) (10) INCOME TAXES The Company recognized a tax provision for the three months ended September 30, 2004 at an estimated annual effective tax rate of 40%, which is based on the projected income tax expense and taxable income for the fiscal year ending June 30, 2005. At September 30, 2004, the Company recognized approximately $68.5 million as a net deferred tax asset because management concluded that it is more likely than not that the net deferred tax assets will be realized, including the net operating losses from operating activities and stock option exercises, based on future operations. As of September 30, 2004, the Company retained a valuation allowance of $18.0 million with respect to certain capital loss carryforwards, deductible temporary differences that would result in a capital loss carryforward when realized and federal research and development tax credits, as the ultimate utilization of such losses and credits is not more likely than not. The Company will continue to reassess the need for such valuation allowance based on the future operating performance of the Company. The tax provision for the three months ended September 30, 2003 was based on the Company's projected income tax expense and taxable income for the fiscal year ended June 30, 2004. In addition, the Company recorded $1.0 million tax benefit relating to the derivative instrument as described in note 12. (11) BUSINESS SEGMENTS A single management team that reports to the Chief Executive Officer comprehensively manages the business operations. The Company does not operate separate lines of business or separate business entities with respect to any of its approved products or product candidates. In addition, the Company does not conduct any operations outside of the United States and Canada. The Company does not prepare discrete financial statements with respect to separate product areas. Accordingly, the Company does not have separately reportable segments as defined by SFAS No. 131, Disclosures about "Segments of an Enterprise and Related Information". (12) DERIVATIVE INSTRUMENTS On February 19, 2003, the Company entered into an agreement and plan of merger with NPS Pharmaceuticals, Inc. ("NPS"). On June 4, 2003, the merger agreement was terminated. In accordance with the mutual termination agreement between the two companies, the Company received 1.5 million shares of NPS common stock. The termination agreement imposes certain restrictions with respect to the transferability of the underlying shares including limiting the maximum number of shares that can be transferred each month after the registration statement relating to the shares is declared effective to 125,000 shares per month. Considering such restrictions, 1.1 million shares were valued at $26.7 million, which was the fair value of NPS common stock on June 4, 2003 and in accordance with SFAS No. 115 "Accounting for Certain Investments in Debt and Equity Securities" ("SFAS No. 115") and the balance of 375,000 shares were considered as restricted stock as defined under the scope exception provisions of SFAS No. 115. The restricted stock was valued at $7.8 million by applying a 12% discount on the related fair value based on a valuation performed by an independent third-party consulting firm. Total consideration received aggregated $34.6 million. The Company also recorded $7.7 million in costs incurred related to the proposed merger with NPS (primarily investment banking, legal and accounting fees). The net gain of approximately $26.9 million was recorded as other income in the condensed consolidated statement of operations for the year ended June 30, 2003. In August 2003, the Company entered into a Zero Cost Protective Collar arrangement with a financial institution to reduce the exposure associated with the 1.5 million shares of common stock of NPS received as part of the merger termination agreement with NPS. By entering into this equity collar arrangement and taking into consideration the underlying put and call option strike prices, the terms are structured so that the Company's investment in NPS common stock, when combined with the value of the Collar, should secure ultimate cash proceeds in the range of 85%-108% of the negotiated fair value per share of $23.47 (representing a 4.85% discount off of the closing price of NPS common stock on the day before the collar was executed). The Collar will mature in four separate three-month intervals from November 2004 through August 2005, at which time the Company will receive the proceeds from the sale of the securities. The amount due at each maturity date will be determined based on the market value of NPS common stock on such maturity date, as well as the value of the Collar. The contract requires the Company to maintain a minimum cash balance of $30.0 million and additional collateral up to $10.0 million (as defined) under certain circumstances with the financial institution. The strike prices of the put and call options are subject to certain adjustments in the event the Company receives a dividend from NPS. At the time of inception, the Collar was designated a derivative hedging instrument in accordance with SFAS 133 and as such, the Company periodically measures its fair value and recognizes the derivative as an asset or a liability. The change in fair value is recorded in other income in the condensed consolidated statements of operations. At September 30, 2004, the Company had a receivable from the financial institution of $847,000. During the three months ended September 30, 2003, the Company recorded an unrealized loss of $6.3 million as a component of other income (expense) representing the change in fair value of the Collar instrument. During the three months ended September 30, 2004 and 2003, the Company recorded an unrealized loss of $882,000 and $6.3 million, respectively, as a component of other income (expense) representing the change in fair value of the Collar. 11

The Company began selling and buying back the underlying NPS common stock in November 2003, which resulted in the termination of the hedging relationship. During the period from August 2003 through the date the hedging relationship was terminated, the NPS common stock had appreciated $5.7 million in value, of which $2.3 million was recorded in other income in the condensed consolidated statements of operations and $2.1 million, net of tax, was recorded as a component of accumulated other comprehensive income in the condensed consolidated statement of stockholders' equity. The $2.1 million gain, net of tax, recognized in accumulated other comprehensive income at the point the hedging relationship was terminated was recognized in operations proportionate to the sale of the underlying NPS common stock. During the three months ended September 30, 2004, the Company sold and repurchased 375,000 shares of NPS common stock to remove the transferability restrictions on such shares, resulting in net realized losses of $578,000, which is included in other income (expense) in the condensed consolidated statement of operations. As of September 30, 2004 and June 30, 2004, the Company held 1.5 million shares of NPS common stock are valued at $32.7 million and $31.5 million, respectively, and are included in investments in equity securities on the accompanying condensed consolidated balance sheets. During the period from August 2003 to September 30, 2003, the NPS common stock had appreciated $7.2 million in value, of which $3.8 million was recorded in other income in the Statement of Operations and $2.1 million was recorded as a component of other comprehensive income, net of tax, in the statement of consolidated stockholders' equity. 12

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Information contained herein contains forward-looking statements which can be identified by the use of forward-looking terminology such as "believes," "expects," "may," "will," "should," or "anticipates" or the negative thereof or other variations thereon or comparable terminology, or by discussions of strategy. We cannot assure you that the future results covered by the forward-looking statements will be achieved. The matters set forth in the "Risk Factors" section of the Company's Annual Report on Form 10-K/A (Amendment No. 2) for the fiscal year ended June 30, 2004, which is incorporated herein by reference, constitute cautionary statements identifying important factors with respect to such forward-looking statements, including certain risks and uncertainties, that could cause actual results to vary materially from the future results indicated in such forward-looking statements. Other factors could also cause actual results to vary materially from the future results indicated in such forward-looking statements. LIQUIDITY AND CAPITAL RESOURCES Total cash reserves, which include cash, cash equivalents and marketable securities, were $181.6 million as of September 30, 2004, as compared to $186.2 million as of June 30, 2004. The decrease is primarily due to the payment of accrued interest on our convertible subordinated notes. We invest our excess cash primarily in United States government-backed securities and investment-grade corporate debt securities. During the three months ended September 30, 2004, net cash used in operating activities was $3.8 million, compared to net cash provided of $3.9 million for the three months ended September 30, 2003, primarily reflecting the payment of accrued interest of $9.0 million on our convertible subordinated notes and our net loss of $939,000, offset by depreciation and amortization of $5.7 million and other non-cash adjustments of $455,000. Cash used in investing activities totaled $11.8 million for the three months ended September 30, 2004 compared to $7.6 million for the three months ended September 30, 2003. Cash used in investing activities during the three months ended September 30, 2004, consisted of $783,000 of capital expenditures and net purchases of marketable securities of $11.0 million. As of September 30, 2004, we had $400.0 million of 4.5% convertible subordinated notes outstanding. The notes bear interest at an annual rate of 4.5%. Interest is payable on January 1 and July 1 of each year. Accrued interest on the notes was $4.5 million as of September 30, 2004. The holders may convert all or a portion of the notes into common stock at any time on or before July 1, 2008. The notes are convertible into our common stock at a conversion price of $70.98 per share, subject to adjustment in certain events. The notes are subordinated to all existing and future senior indebtedness. On or after July 7, 2004, we may redeem any or all of the notes at specified redemption prices, plus a accrued and unpaid interest to the day preceding the redemption date. The notes will mature on July 1, 2008 unless earlier converted, redeemed at our option or redeemed at the option of the note-holder upon a fundamental change, as described in the indenture for the notes. Neither we nor any of our subsidiaries are subject to any financial covenants under the indenture. In addition, neither we nor any of our subsidiaries are restricted under the indenture from paying dividends, incurring debt, or issuing or repurchasing our securities. In August 2003, we entered into a zero cost protective collar arrangement with a financial institution to reduce the exposure associated with the 1.5 million shares of common stock of NPS Pharmaceuticals, Inc. ("NPS") we received as part of a merger termination agreement with NPS. The Collar will mature in four separate four-month intervals from November 2004 through August 2005, at which time we will receive the proceeds from the sale of the securities which we estimate with consideration to the Collar to be $29.9 million to $38.0 million. The amount due at each maturity date will be determined based on the market value of NPS common stock on such maturity date, as well as the value of the Collar. The contract requires us to maintain a minimum cash balance of $30.0 million and additional collateral up to $10.0 million (as defined) under certain circumstances with the financial institution. The strike prices of the put and call options are subject to certain adjustments in the event we receive a dividend from NPS. Our current sources of liquidity are our cash reserves; interest earned on such cash reserves; short-term investments; marketable securities; sales of ADAGEN(R), ONCASPAR(R), DEPOCYT(R) and ABELCET(R); royalties earned, which are primarily related to sales of PEG-INTRON(R), and contract manufacturing revenue. Based upon our currently planned research and development activities and related costs and our current sources of liquidity, we anticipate our current cash reserves and expected cash flow from operations will be sufficient to meet our capital, debt service and operational requirements for the foreseeable future. 13

While we believe that our cash, cash reserves and investments will be adequate to satisfy our capital needs for the foreseeable future, we may seek additional financing, such as through future offerings of equity or debt securities or agreements with collaborators with respect to the development and commercialization of products, to fund future operations and potential acquisitions. We cannot assure you, however, that we will be able to obtain additional funds on acceptable terms, if at all. OFF-BALANCE SHEET ARRANGEMENTS As part of our ongoing business, we do not participate in transactions that generate relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities ("SPE"), which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow limited purposes. As of September 30, 2004 we are not involved in any SPE transactions. CONTRACTUAL OBLIGATIONS Our major outstanding contractual obligations relate to our operating leases, inventory purchase commitments, convertible debt, and license agreements with collaborative partners. Since June 30, 2004, there has been no material change with respect to our contractual obligations as disclosed under Management's Discussion and Analysis of Financial Condition and Results of Operations - Contractual Obligations in our annual report on Form 10-K/A for the year ended June 30, 2004. RESULTS OF OPERATIONS THREE MONTHS ENDED SEPTEMBER 30, 2004 AND 2003 Revenues. Total revenues for the three months ended September 30, 2004 were $40.5 million, as compared to $40.6 million for the three months ended September 30, 2003. The components of revenues are product sales and contract manufacturing revenue, royalties we earn on the sale of our products by others and contract revenues. Net product sales increased by 10% to $27.5 million for the three months ended September 30, 2004, as compared to $25.0 million for the three months ended September 30, 2003. The increase in sales was due to increased sales of three of our internally marketed products: ABELCET(R), DEPOCYT(R), and ONCASPAR(R). Sales of ABELCET in North America increased by 10% to $16.5 million for the three months ended September 30, 2004, as compared to $15.0 million for the three months ended September 30, 2003 as a result of our focused marketing efforts to combat the launch of competitive products from Merck and Co., Inc. ("Merck") and Pfizer Inc. ("Pfizer"). Sales of DEPOCYT increased by 82% to $2.3 million for the three months ended September 30, 2004 as compared to $1.3 million for the three months ended September 30, 2003. Sales of ONCASPAR increased by 7% to $4.4 million for the three months ended September 30, 2004 from $4.1 million in the corresponding period in the prior year. These increased product sales were driven by our focused sales and marketing efforts to support ONCASPAR and DEPOCYT. The increase in ONCASPAR sales was offset in part by approximately $415,000 in returns related to the recall of three lots in recent months. Sales of ADAGEN decreased by 7% for the three months ended September 30, 2004 to $4.3 million as compared to $4.6 million for the three months ended September 30, 2003 due to the timing of shipments. Contract manufacturing revenue for the three months ended September 30, 2004 increased to $2.5 million, as compared to $1.6 million for the comparable period of the prior year. Contract manufacturing revenue is related to the manufacture and sale of ABELCET for the international market and other contract manufacturing revenue. Royalties for the three months ended September 30, 2004, decreased to $10.1 million as compared to $13.8 million in the same period in the prior year. The decrease was primarily due to decreased sales of PEG-INTRON by Schering-Plough, our marketing partner, due to competitive pressure from the competing pegylated alpha interferon product, PEGASYS(R), which Hoffmann-La Roche launched as a combination therapy for hepatitis C in December 2002. 14

Due to the competitive pressure from PEGASYS, we believe royalties from sales of PEG-INTRON may continue to decrease in the near term. This decrease may be offset by the potential launch of PEG-INTRON in combination with REBETOL in Japan. In October 2004, Schering-Plough announced the approval of a New Drug Application in Japan for PEG-INTRON combination therapy. PEG-INTRON is expected to become available in Japan upon National Health Insurance Reimbursement Price Listing. Since its launch, PEGASYS has taken market share away from PEG-INTRON in the U.S. and Europe and the overall market for pegylated alpha interferon in the treatment of hepatitis C has not increased enough to offset the effect PEGASYS sales have had on sales of PEG-INTRON. As a result, quarterly sales of PEG-INTRON and the royalties we receive on those sales have declined in recent quarters. We cannot assure you that PEGASYS will not continue to gain market share at the expense of PEG-INTRON, which could result in lower PEG-INTRON sales and royalties to us. Based on our focused marketing efforts for ABELCET we believe that we have been able to stabilize the pressure from the introduction of new products in the antifungal market, namely Pfizer's VFEND(R) and Merck's CANCIDAS(R). Given the highly competitive landscape of the antifungal market, we expect ABELCET to have modest growth over the next year. We expect ADAGEN sales to grow over the next year at similar levels to those achieved for the year ended June 30, 2004. Assuming we are able to successfully address certain manufacturing and product stability problems we have experienced with ONCASPAR, which have resulted in the recent recalls mentioned above, we expect ONCASPAR sales to continue to grow, but at a pace slower then the 46% growth rate achieved in fiscal 2004. ONCASPAR sales may decline, however, if we are unable to correct these manufacturing and product stability problems. We expect DEPOCYT sales to gain modestly from the current sales levels. However, we cannot assure you that any particular sales levels of ABELCET, ADAGEN, ONCASPAR, DEPOCYT or PEG-INTRON will be achieved or maintained. Contract revenues for the three months ended September 30, 2004 remained relatively consistent at $299,000 as compared to $268,000 for the three months ended September 30, 2003. During the three months ended September 30, 2004, we had export sales and royalties on export sales of $10.8 million, of which $7.9 million were in Europe. Export sales and royalties recognized on export sales for the prior year quarter were $9.6 million, of which $8.2 million were in Europe. Cost of Sales and Manufacturing Revenue. Cost of sales and manufacturing revenue, as a percentage of net sales and manufacturing revenue, decreased to 36% for the three months ended September 30, 2004 as compared to 41% for the same period last year. The decrease was principally due to higher 2003 inventory costs as a result of certain purchase accounting adjustments to the inventory acquired with the North American ABELCET Business which was sold during the three months ended September 30, 2003. Research and Development. Research and development expenses increased by 52% to $10.0 million for the three months ended September 30, 2004 from $6.6 million for the same period last year. The increase was primarily due to, (i) increased spending on our late stage development program for ATG Fresenius S of approximately $670,000; (ii) increased spending of approximately $1.5 million related to our strategic partnership with Inex on Inex's proprietary oncology product MARQIBO; (iii) increased preclinical spending of $670,000; and (iv) increased personnel-related expenses of approximately $560,000. Selling, General and Administrative. Selling, general and administrative expenses for the three months ended September 30, 2004 increased by 9% to $12.2 million, as compared to $11.2 million in the same period last year. The increase was primarily due to increased sales and marketing expense of approximately $1.7 million of which $1.1 million related to expenses attributed to our oncology sales operations. Approximately 46% of the increase in our oncology sales and marketing costs are associated with the potential launch of MARQIBO. This increase was offset in part by a decrease in general and administrative personnel and other related costs of approximately $650,000. Amortization. Amortization expense remained unchanged at $3.4 million for the three months ended September 30, 2004 and 2003. Amortization expense for both periods relates to intangible assets acquired in connection with the ABELCET acquisition during November 2002. Amortization of intangible assets is provided over their estimated lives ranging from 3-15 years on a straight-line basis. 15

Other income (expense). Other income (expense) for the three months ended September 30, 2004 was an expense of $5.6 million, as compared to an expense of $7.0 million for the three months ended September 30, 2003. Other income (expense) includes: net investment income, interest expense, and other, net. Net investment income for the three months ended September 30, 2004 increased to $770,000 from $474,000 for the three months ended September 30, 2003 due to an increase in our interest bearing investments and higher interest rates. Interest expense was $5.0 million for each of the three months ended September 30, 2004 and 2003. Interest expense is related to $400.0 million in 4.5% convertible subordinated notes, which were outstanding for each of the periods. Other, net is primarily related to the 1.5 million shares of NPS common stock we received under a June 2003 merger termination agreement and a financial instrument we formed to reduce our exposure to the change in fair value associated with such shares, specifically a zero cost protective collar arrangement (the "Collar.") For the three months ended September 30, 2004, other, net was an expense of $1.4 million, as compared to an expense of $2.5 million for the three months ended September 30, 2003. During the three months ended September 30, 2004, we recognized (i) a realized loss of $578,000 related to the sale and repurchase of 375,000 shares of NPS common stock and (ii) an unrealized loss of $882,000 related to change in the fair value of the Collar. For a more detailed description of our Merger Termination Agreement with NPS and the Collar see Note 12 to the Notes to the accompanying condensed consolidated financial statements - Derivative Instruments. During the three months ended September 30, 2003, we recognized (i) an unrealized loss of $6.3 million related to change in the fair value of the Collar, and (ii) $3.8 million unrealized gain on the NPS common stock. Income Taxes. During the three months ended September 30, 2004 we recognized a tax benefit of approximately $637,000 compared to tax expense of $482,000, for the three months ended September 30, 2003. We recognized a tax benefit for the three months ended September 30, 2004 at an estimated annual effective tax rate of 40%, which is based on the projected income tax expense and taxable income for the fiscal year ending June 30, 2005. The tax provision for the three months ended September 30, 2003 was based on the Company's projected income tax expense and taxable income for the fiscal year ended June 30, 2004. CRITICAL ACCOUNTING POLICIES In December 2001, the SEC requested that all registrants discuss their most "critical accounting policies" in Management's Discussion and Analysis of Financial Condition and Results of Operations. The SEC indicated that a "critical accounting policy" is one which is both important to the portrayal of the company's financial condition and results of operations and requires management's most difficult, subjective or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain. Our consolidated financial statements are presented in accordance with accounting principles that are generally accepted in the United States. All professional accounting standards effective as of September 30, 2004 have been taken into consideration in preparing the consolidated financial statements. The preparation of the consolidated financial statements requires estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosures. Some of those estimates are subjective and complex, and, consequently, actual results could differ from those estimates. The following accounting policies have been highlighted as significant because changes to certain judgments and assumptions inherent in these policies could affect our consolidated financial statements. Revenues from product sales and manufacturing revenue are recognized at the time of shipment and a provision is made at that time for estimated future credits, chargebacks, sales discounts, rebates and returns. These sales provision accruals, except for rebates which are recorded as a liability, are presented as a reduction of the accounts receivable balances. We continually monitor the adequacy of the accruals by comparing the actual payments to the estimates used in establishing the accruals. We ship product to customers primarily FOB shipping point and utilize the following criteria to determine appropriate revenue recognition: pervasive evidence of an arrangement exists, delivery has occurred, selling price is fixed and determinable and collection is reasonably assured. Royalties under our license agreements with third parties are recognized when earned through the sale of the product by the licensor net of any estimated future credits, chargebacks, sales discount rebates and refunds. Contract revenues are recorded as the earnings process is completed. Non-refundable milestone payments that represent the completion of a separate earnings process are recognized as revenue when earned, upon the occurrence of contract-specified events and when the milestone has substance. Non-refundable payments received upon entering into license and other collaborative agreements where we have continuing involvement are recorded as deferred revenue and recognized ratably over the estimated service period. 16

Under the asset and liability method of Statement of Financial Accounting Standards ("SFAS") No. 109, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. A valuation allowance on net deferred tax assets is provided for when it is more likely than not that some portion or all of the deferred tax assets will not be realized. We have significant net deferred tax assets, primarily related to net operating loss and other carryforwards, and continue to analyze what level of the valuation allowance is needed taking into consideration the expected future performance of the Company. We assess the carrying value of our cost method investments in accordance with SFAS No. 115 and SEC Staff Accounting Bulletin (SAB) No. 59. Commencing with the first quarter of fiscal 2005 we will evaluate investments in accordance with Emerging Issues Task Force ("EITF") 03-01, the Meaning of Other-Than-Temporary Impairment and its application to Certain Investments. An impairment write-down is recorded when a decline in the value of an investment is determined to be other-than-temporary. These determinations involve a significant degree of judgment and are subject to change as facts and circumstances change. In accordance with the provisions of SFAS No. 142, goodwill and intangible assets determined to have an indefinite useful life acquired in a purchase business combination, are not subject to amortization, are tested at least annually for impairment, and are tested for impairment more frequently if events and circumstances indicate that the asset might be impaired. We completed our annual goodwill impairment test on May 31, 2004, which indicated that goodwill was not impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset's fair value. This determination is made at the Company level because the Company is in one reporting unit and consists of two steps. First, we determine the fair value of our reporting unit and compare it to its carrying amount. Second, if the carrying amount of its reporting unit exceeds our fair value, an impairment loss is recognized for any excess of the carrying amount of the reporting unit's goodwill over the implied fair value of that goodwill. The implied fair value of goodwill is determined by allocating the fair value of the reporting unit in a manner similar to a purchase price allocation, in accordance with FASB Statement No. 141, Business Combinations. The residual fair value after this allocation is the implied fair value of our goodwill. Recoverability of amortizable intangible assets is determined by comparing the carrying amount of the asset to the future undiscounted net cash flow to be generated by the asset. The evaluations involve amounts that are based on management's best estimate and judgment. Actual results may differ from these estimates. If recorded values are less than the fair values, no impairment is indicated. SFAS No. 142 also requires that intangible assets with estimated useful lives be amortized over their respective estimated useful lives. We apply the intrinsic value-based method of accounting prescribed by Accounting Principles Board ("APB") Opinion No. 25, Accounting for Stock Issued to Employees, and related interpretations, in accounting for our fixed plan stock options. As such, compensation expense would be recorded on the date of grant of options to employees and members of the Board of Directors only if the current market price of the underlying stock exceeded the exercise price. SFAS No. 123, Accounting for Stock-Based Compensation, established accounting for stock-based employee compensation plans. As allowed by SFAS No. 123, we have elected to continue to apply the intrinsic value-based method of accounting described above, and have adopted the disclosure requirements of SFAS No. 123, as amended. When the exercise price of employee or director stock options is less than the fair value of the underlying stock on the grant date, we record deferred compensation for the difference and amortize this amount to expense over the vesting period of the options. Options or stock awards issued to non-employees and consultants are recorded at their fair value as determined in accordance with SFAS No. 123 and EITF No. 96-18, Accounting for Equity Instruments That Are Issued to Other Than Employees for Acquiring, or in Conjunction with Selling, Goods or Services and recognized over the related vesting period. 17

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK The following discussion about our exposure to market risk of financial instruments contains forward-looking statements. Actual results may differ materially from those described. Our holdings of financial instruments are comprised of debt securities and time deposits. All such instruments are classified as securities available-for-sale. We do not invest in portfolio equity securities or commodities or use financial derivatives for trading purposes. Our debt security portfolio represents funds held temporarily pending use in our business and operations. We manage these funds accordingly. We seek reasonable assuredness of the safety of principal and market liquidity by investing in rated fixed income securities while at the same time seeking to achieve a favorable rate of return. Our market risk exposure consists principally of exposure to changes in interest rates. Our holdings are also exposed to the risks of changes in the credit quality of issuers. We typically invest the majority of our investments in the shorter-end of the maturity spectrum, and at September 30, 2004 all of our holdings were in instruments maturing in four years or less. The table below presents the principal amounts and related weighted average interest rates by year of maturity for our investment portfolio as of September 30, 2004 (in thousands): 2005 2006 2007 2008 TOTAL FAIR VALUE ------- -------- ------- ------- -------- ---------- Fixed Rate $44,445 $34,346 $17,308 $10,012 $106,111 $105,516 Average Interest Rate 1.65% 2.13% 2.32% 3.16% 2.06% - Variable Rate - - - - - - Average Interest Rate - - - - - - ------- ------- ------- ------- -------- -------- $44,445 $34,346 $17,308 $10,012 $106,111 $105,516 ======= ======= ======= ======= ======== ======== Our 4.5% convertible subordinated notes in the principal amount of $400.0 million due July 1, 2008 have fixed interest rates. The fair value of the notes was approximately $378.5 million at September 30, 2004. The fair value of fixed interest rate convertible notes is affected by changes in interest rates and by changes in the price of our common stock. As discussed in Liquidity and Capital Resources, in August 2003, we entered into a zero cost protective collar arrangement (the "Collar") with a financial institution to reduce the exposure to the changes in the fair value associated with the 1.5 million shares of common stock of NPS we received as part of the merger termination agreement with NPS. The Collar is considered a derivative instrument and as such, we carry the Collar at fair value as an asset or liability on the consolidated balance sheet and changes in fair value are recorded as a charge or credit to operations in the period of change. The value of the Collar instrument is subject to market conditions that cause variability associated with its intrinsic value and time values. The fair value of the Collar at September 30, 2004 was a receivable of $847,000. ITEM 4. CONTROLS AND PROCEDURES The following has been amended to reflect the restatement of the Company's condensed consolidated financial statements as discussed in (i) the Explanatory Note to this quarterly report on Form 10-Q/A and (ii) Note 2 to the condensed consolidated financial statements for the quarter ended September 30, 2004, which appear under Item 1 of this quarterly report on Form 10-Q/A. In connection with the preparation of our previously filed quarterly report on Form 10-Q for the quarterly period ended September 30, 2004, our acting principal executive officer and principal accounting officer supervised and participated with other management in the evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended ("the Exchange Act")). Based on that evaluation, our management including our acting principal executive officer and principal accounting officer concluded that, as of September 30, 2004, there were deficiencies in our internal control and procedures and such controls were ineffective. Further background on this conclusion and the changes in internal controls instituted are described in further detail below. On October 29, 2004, we filed a current report on Form 8-K with the SEC reporting that we would amend and restate our annual report on Form 10-K for the year ended June 30, 2004 to correct our accounting for a derivative hedging instrument and our assessment of the realizeability of our deferred tax assets related to the unrealized loss on our available-for-sale securities included in our other comprehensive loss. In connection with the restatement process, we also concluded that a material weakness in our internal control over financial reporting existed as of September 30, 2004 relating to the timely review and monitoring of certain account analyses, including the derivative hedging instrument and the assessment of the realizeability of our deferred tax assets. During the quarter ended September 30, 2004, we implemented more comprehensive review and monitoring procedures to address a material weakness in our internal control over financial reporting that existed as of September 30, 2004. The material weakness related to the timely review and monitoring of certain account analyses, including a derivative hedging instrument and the assessment of the realizeability of our deferred tax assets and led to the restatement of our annual report on Form 10-K for the year ended June 30, 2004 as reported on October 29, 2004 in a Current Report on Form 8-K filed with the SEC. 18

Subsequent to the period covered by this report, in connection with the audit of our consolidated financial statements for the year ended June 30, 2005, we reevaluated our use of hedge accounting for the same derivative hedging instrument under Statement of Financial Accounting Standards No. 133, Accounting for Derivative Instruments and Hedging Activities, as amended (SFAS No. 133). In conjunction with our reevaluation, we determined that we would need to amend and restate certain previously issued financial statements, including those pertaining to the quarterly period ended September 30, 2004, with respect to our accounting for the derivative hedging instrument. Accordingly, on August 16, 2005 and September 1, 2005 we filed a current report on Form 8-K with the SEC detailing our determination. There have been no changes in our internal control over financial reporting during the quarter ended September 30, 2004 that have materially affected or are reasonably likely to materially affect our internal control over financial reporting. However, since September 30, 2004, we have implemented more comprehensive review and monitoring procedures as a means of mitigating the risk of future inaccuracies in those particular areas related to the restatement of our annual report on Form 10-K/A (Amendment No. 1) for the year ended June 30, 2004 reported on October 29, 2004. In addition, we are also designing a remediation plan to address a material weakness in our internal controls and procedures pertaining to our application of SFAS No. 133, the accounting for derivative instruments and the related restatements of certain previously issued financial statements that were reported on August 16, 2005 and September 1, 2005. Our remediation plan will include improving training, education, and accounting reviews to ensure that all relevant financial personnel have the appropriate level of technical expertise to effectively interpret and apply accounting standards. 19

PART II. OTHER INFORMATION ITEM 6. EXHIBITS Exhibits required by Item 601 of Regulation S-K. PAGE NUMBER OR EXHIBIT INCORPORATION NUMBER DESCRIPTION BY REFERENCE ------ ----------- ------------ 3.1 Certificate of Incorporation, as amended ^^^ 3.2 Amendment to Certificate of Incorporation \\ 3.3 By laws, as amended ^^ 4.1 Indenture dated as of June 26, 2001, between the Company and Wilmington Trust Company, as trustee, including the form of 4 1/2% Convertible Subordinated Notes due 2008 attached as Exhibit A thereto ++++ 4.2 Rights Agreement dated May 17, 2002 between the Company and Continental Stock Transfer Trust Company, as rights agent ^ 4.3 First Amendment to Rights Agreement, dated as of February 19, 2003 * 31.1 Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 o 31.2 Certification of Principal Accounting Officer pursuant to Section 302 of the Sarbanes-Oxley Act. o 32.1 Certification of Principal Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 o 32.2 Certification of Principal Accounting Officer pursuant to Section 906 of the Sarbanes-Oxley Act o o Filed herewith. ^^^ Previously filed as an exhibit to the Company's Annual Report on Form 10-K for the year ended June 30, 2002 and incorporated herein by reference thereto. \\ Previously filed as an exhibit to the Company's Current Report on Form 8-K filed on December 10, 2002 and incorporated herein by reference thereto. ^^ Previously filed as an exhibit to the Company's Current Report on Form 8-K filed with the Commission on May 22, 2002 and incorporated herein by reference thereto. ++++ Previously filed as an exhibit to the Company's Registration Statement on Form S-3 (File No. 333-67509) filed with the Commission and incorporated herein by reference thereto. ^ Previously filed as an exhibit to the Company's Form 8-A (File No. 000-12957) filed with the Commission on May 22, 2002 and incorporated herein by reference thereto. * Previously filed as an exhibit to the Company's Form 8-A12 G/A (File No. 000-12957) filed with the Commission on February 20, 2003 and incorporated herein by reference thereto. 20

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this amended report to be signed on its behalf by the undersigned, thereunto duly authorized. ENZON PHARMACEUTICALS, INC. (Registrant) Date: September 28, 2005 By: /s/ Jeffrey H. Buchalter -------------------------------- Jeffrey H. Buchalter Chairman, President and Chief Executive Officer (Principal Executive Officer) Date: September 28, 2005 By: /s/ Craig A. Tooman -------------------------------- Craig A. Tooman Executive Vice President Finance and Chief Financial Officer (Principal Financial Officer) 21

EXHIBIT 31.1 CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Jeffrey H. Buchalter, certify that: 1. I have reviewed this amended Quarterly Report on Form 10-Q/A for the quarter ended September 30, 2004 of Enzon Pharmaceuticals, Inc. ("Enzon"); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4. I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and (b) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and (c) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 5. I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the Audit Committee of the registrant's board of directors (or persons performing the equivalent functions): (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting. September 28, 2005 By: /s/Jeffrey H. Buchalter ------------------------------ Jeffrey H. Buchalter Chairman, President and Chief Executive Officer (Principal Executive Officer)

EXHIBIT 31.2 CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Craig A. Tooman, certify that: 1. I have reviewed this amended Quarterly Report on Form 10-Q/A for the quarter ended September 30, 2004 of Enzon Pharmaceuticals, Inc. ("Enzon"); 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report; 4. I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and (b) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and (c) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 5. I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the Audit Committee of the registrant's board of directors (or persons performing the equivalent functions): (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting. Date: September 28, 2005 By: /s/Craig A. Tooman -------------------------------- Craig A. Tooman Executive Vice President Finance and Chief Financial Officer (Principal Financial Officer)

EXHIBIT 32.1 CERTIFICATION PURSUANT TO SECTION 906, OF THE SARBANES-OXLEY ACT OF 2002 In connection with the amended Quarterly Report on Form 10-Q/A of Enzon Pharmaceuticals, Inc. (the "Company") for the period ended September 30, 2004 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Jeffrey H. Buchalter, Chairman, President and Chief Executive Officer of the Company, certify to my knowledge, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: 1. The Report fully complies with the requirements of Section 13(a) or15(d) of the Securities Exchange Act of 1934; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. September 28, 2005 By: /s/Jeffrey H. Buchalter ---------------------------- Jeffrey H. Buchalter Chairman, President and Chief Executive Officer (Principal Executive Officer) The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) and is not being filed as part of the Form 10-Q/A or as a separate disclosure document. A signed original of this written statement required by Section 906 has been provided to Enzon Pharmaceuticals, Inc. and will be retained by Enzon Pharmaceuticals, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

EXHIBIT 32.2 CERTIFICATION PURSUANT TO SECTION 906, OF THE SARBANES-OXLEY ACT OF 2002 In connection with the amended Quarterly Report on Form 10-Q/A of Enzon Pharmaceuticals, Inc. (the "Company") for the period ended September 30, 2004 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Craig A. Tooman, Executive Vice President Finance and Chief Financial Officer of the Company, certify to my knowledge, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: 1. The Report fully complies with the requirements of Section 13(a) or15(d) of the Securities Exchange Act of 1934; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. September 28, 2005 By: /s/Craig A. Tooman --------------------------------- Craig A. Tooman Executive Vice President Finance and Chief Financial Officer (Principal Financial Officer) The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) and is not being filed as part of the Form 10-Q/A or as a separate disclosure document. A signed original of this written statement required by Section 906 has been provided to Enzon Pharmaceuticals, Inc. and will be retained by Enzon Pharmaceuticals, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.