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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

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FORM 10-Q

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(Mark One)

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For the quarterly period ended September 30, 2022

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For the transition period from​ ​ to​ ​

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Commission file number 001-36435

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Enzon Pharmaceuticals, Inc.

(Exact name of registrant as specified in its charter)

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(732) 980-4500

(Registrant’s telephone number, including area code)

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Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

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Securities registered pursuant to Section 12(b) of the Act:

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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 ☒ No ☐

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Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

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Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

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Shares of Common Stock outstanding as of November 4, 2022: 74,214,603

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PART I – FINANCIAL INFORMATION

Item 1. Financial Statements.

ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share amounts)

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The accompanying notes are an integral part of these condensed consolidated financial statements.

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share amounts)

(Unaudited)

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The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY

(In thousands)

(Unaudited)

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The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

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The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

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ENZON PHARMACEUTICALS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Unless the context requires otherwise, references in this Quarterly Report on Form 10-Q to “Enzon,” the “Company,” “we,” “us,” or “our” and similar terms mean Enzon Pharmaceuticals, Inc. and its subsidiaries. The following discussion of our financial condition and results of operations should be read together with our consolidated financial statements and notes to those statements included elsewhere in this Quarterly Report on Form 10-Q and our 2021 Annual Report on Form 10-K.

Forward-Looking Information and Factors That May Affect Future Results

The following discussion contains forward-looking statements within the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. All statements contained in the following discussion, other than statements that are purely historical, are forward-looking statements. Forward-looking statements can be identified by the use of forward-looking terminology such as “believes,” “expects,” “may,” “will,” “should,” “potential,” “anticipates,” “plans,” or “intends” or the negative thereof, or other variations thereof, or comparable terminology, or by discussions of strategy. Forward-looking statements are based upon management’s present expectations, objectives, anticipations, plans, hopes, beliefs, intentions or strategies regarding the future and are subject to known and unknown risks and uncertainties that could cause actual results, events or developments to be materially different from those indicated in such forward-looking statements, including the risks and uncertainties set forth in Item 1A. Risk Factors in our 2021 Annual Report on Form 10-K. These risks and uncertainties should be considered carefully and readers are cautioned not to place undue reliance on such forward-looking statements. As such, no assurance can be given that the future results covered by the forward-looking statements will be achieved.

The percentage changes throughout the following discussion are based on amounts stated in thousands of dollars and not the rounded millions of dollars reflected in this section.

Overview

Enzon Pharmaceuticals, Inc. (together with its subsidiaries, the “Company,” “Enzon,” “we” or “us”) is positioned as a public company acquisition vehicle, where it can become an acquisition platform and more fully utilize its net operating loss carryforwards (“NOLs”) and enhance stockholder value.

In September 2020, we initiated the Rights Offering for our common and preferred stock (see below and Note 12 to our Condensed Consolidated Financial Statements), which closed in October 2020, and we realized $43.6 million in gross proceeds. This has enabled us to embark on our plan to realize the value of our more than $100 million NOLs by acquiring potentially profitable businesses or assets. To protect the NOLs, in August 2020, our Board of Directors adopted a Section 382 rights plan (see Note 11 to our Condensed Consolidated Financial Statements).

Historically, we had received royalty revenues from licensing arrangements with other companies primarily related to sales of certain drug products that utilized Enzon’s proprietary technology. In recent years, we have had no clinical operations and limited corporate operations. We cannot assure you that we will earn material future royalties or milestones.

We have a marketing agreement with Micromet AG, now part of Amgen, Inc. (the “Micromet Agreement”), pursuant to which we may be entitled to certain milestone and royalty payments if Vicineum, a drug being developed by Sesen, Inc., is approved for the treatment of non-muscle invasive bladder cancer. In a press release dated February 16, 2021, Sesen announced that the U.S. Food and Drug Administration (the “FDA”) had accepted for filing Sesen’s Biologic License Application (“BLA”) for Vicineum. The FDA further granted Priority Review, with a target Prescription Drug User Fee Act date for a decision on the BLA of August 18, 2021. Accordingly, we earned a milestone of $409,430 in the first quarter of 2021, all of which was received by June 30, 2021. However, on August 13, 2021, Sesen announced that it had received a Complete Response Letter” from the FDA and that the FDA had determined that it cannot approve the BLA for Vicineum in its present form and had provided recommendations specific to additional clinical/statistical data and analyses in addition to Chemistry, Manufacturing and Controls issues pertaining to a recent preapproval inspection and product quality. In its public filings, Sesen stated that it made the strategic decision to voluntarily pause further development of Vicineum in the United States. Sesen also stated that the decision was based on a thorough reassessment of Vicineum following recent discussions with the FDA, which had implications on the size, timeline and costs of an additional Phase 3 clinical trial, which the FDA previously confirmed would be required for a potential resubmission of a BLA for Vicineum. Sesen further stated that it continued to believe Vicineum has benefits for patients and healthcare providers that can be maximized through a company with a larger infrastructure, and as such, intended to seek a partner that could execute further development to realize the full potential of Vicineum. As a result of this decision, Sesen stated that it turned its primary focus to the careful assessment of potential strategic alternatives. On September 21, 2022, Sesen announced that it had entered into a definitive merger agreement with Carisma Therapeutics Inc. (“Carisma”) and that the combined

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company will focus on the advancement of Carisma’s proprietary cell therapy for the treatment of cancer and other disorders. Sesen also stated that it intends to seek a partner for the further development of Vicineum.

In a filing with the SEC in March 2021, Sesen noted that it had received notice from the European Medicines Agency that its Marketing Authorization Application for Vicineum was found to be valid and the review procedure had officially started. Accordingly, we earned and received an additional milestone of $292,284 in the second quarter of 2021. Subsequently, on August 25, 2021, Sesen announced that it had withdrawn its application to market Vicineum in Europe.

Due to the challenges associated with developing and obtaining approval for drug products, and the lack of our involvement in the development and approval process, there is substantial uncertainty as to whether we will receive any milestone or royalty payments under the Micromet Agreement. We will not recognize revenue until all revenue recognition requirements are met.

Acquisition Activities

Our Board of Directors and our management are actively involved in pursuing, sourcing, reviewing and evaluating various potential acquisition transactions consistent with our long-term strategy. Our management and Board of Directors have made a number of contacts and engaged in discussions with principals of individual companies and financial advisors on behalf of various individual companies, while continuing to evaluate potential transactions. To date, we have not developed any actionable transactions. We will continue to update our stockholders as material developments arise.

Throughout this Management’s Discussion and Analysis, the primary focus is on our results of operations, cash flows and financial condition. The percentage changes throughout the following discussion are based on amounts stated in thousands of dollars.

Results of Operations

In the three-month and nine-month periods ended September 30, 2021, we earned approximately $0 and $672,000, respectively, in milestone revenue from Sesen. There were no comparable revenues in the three-month and nine-month periods ended September 30, 2022. Separately, in the three-month and nine-month periods ended September 30, 2021, we were notified by Merck of an approximate $0 and $29,000 repayment, respectively, they believe they are owed of previously-paid royalties on PegIntron. Sales of PegIntron-related products in the area in which our patents have not expired are de minimis and we expect to earn little or no future royalties from Merck. Our right to receive royalties on U.S. and European sales of PegIntron expired in 2016 and 2018, respectively, expired in Malaysia in 2020 and in Japan in December 2021. Such rights will expire in Chile in April 2024.

Merck has not yet reported royalty revenues earned by us for product sales and/or recoupments for returns and rebates for the quarter ended September 30, 2022, but neither is expected to be material.

Other Income (in thousands of dollars):

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Other income is attributable to the interest and dividends received on the invested cash we received from the $43.6 million of proceeds from our rights offering (see Note 12 to our Condensed Consolidated Financial Statements). Other income increased by approximately $294,000, or 4,900%, to $300,000 for the nine months ended September 30, 2022 from $6,000 for the first nine months of 2021. The increase in other income is attributable to the higher rate of interest in 2022 and the nature of the account in which the proceeds were invested.

Other income increased by approximately $206,000, or 10,300%, to $208,000 for the three months ended September 30, 2022 from $2,000 for the three months ended September 30, 2021. The increase in other income is attributable to the higher rate of interest in 2022 and the nature of the account in which the proceeds were invested.

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Operating Expenses:

General and Administrative (in thousands of dollars):

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General and administrative expenses decreased by approximately $89,000, or 10%, to $821,000 for the nine months ended September 30, 2022 from $910,000 for the first nine months of 2021. The decrease in expense is substantially attributable to the decrease in consulting fees.

General and administrative expenses decreased by approximately $7,000, or 3%, to $221,000 for the three months ended September 30, 2022 from $228,000 for the third quarter of 2021. The decrease in expense is substantially attributable to the decrease in consulting and accounting fees, as partially offset by an increase in legal and contracted services fees.

Tax Expense:

We incurred a tax (benefit) expense of approximately ($2,000) in the first nine months of 2022 and $2,000 in the first nine months of 2021 for the New Jersey state minimum taxes and a true-up adjustment for the over accrual of the New Jersey tax in prior years.

Liquidity and Capital Resources

Our current source of liquidity is our existing cash on hand, which includes the approximately $43.6 million of gross proceeds from our Rights Offering. (See Note 12 to the Condensed Consolidated Financial Statements.) While we no longer have any research and development activities, we continue to retain rights to receive royalties and milestone payments from existing licensing arrangements with other companies. We may become entitled to additional milestone payments as a result of regulatory filings in the United States and Europe in connection with Vicineum. We may share in royalty payments upon the approval and sale of Vicineum, However, Sesen has announced that it has paused development of Vicineum in the U.S. and any such milestone or royalty payments are unlikely in the near future. We believe that our existing cash on hand will be sufficient to fund our operations, at least, through November 2023. Our future royalty revenues may be de minimis over the next several years unless and until we receive a share of milestone and royalty payments resulting from the approval and sale of Vicineum, and we cannot assure you that we will receive any royalty, milestone or other payments or revenues.

While we are positioned as a public company acquisition vehicle, where we can become an acquisition platform and more fully utilize our NOLs and enhance stockholder value, we cannot assure you that we will succeed in making acquisitions that are profitable and that will enable us to utilize our NOLs.

Cash used in operating activities represents a net loss, as adjusted for certain non-cash items including the effect of changes in operating assets and liabilities. Cash used in operating activities during the nine months ended September 30, 2022 was approximately $789,000, as compared to cash used in operating activities of approximately $251,000 during the comparable period in 2021. This net increase of approximately $538,000 was primarily attributable to the increase in net loss of approximately $285,000 and a net increase of approximately $253,000 in cash used in changes in operating assets and liabilities that was primarily attributable to an increase in prepaid insurance of approximately $333,000 during the nine months ended September 30, 2022.

The net effect of the foregoing was a decrease of cash and cash equivalents of approximately $789,000, from $47.6 million at December 31, 2021 to $46.9 million at September 30, 2022.

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 (SPEs), which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually limited purposes. As of September 30, 2022, we were not involved in any SPE transactions.

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Critical Accounting Policies and Estimates

A critical accounting policy is one that is both important to the portrayal of a 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 (“U.S. GAAP”). All applicable U.S. GAAP accounting standards effective as of September 30, 2022 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 and estimates have been highlighted as significant because changes to certain judgments and assumptions inherent in these policies could affect our consolidated financial statements.

We base our estimates, to the extent possible, on historical experience. Historical information is modified as appropriate based on current business factors and various assumptions that we believe are necessary to form a basis for making judgments about the carrying value of assets and liabilities. We evaluate our estimates on an ongoing basis and make changes when necessary. Actual results could differ from our estimates.

Revenues

Royalties under our license agreements with third-parties and pursuant to the sale of our former specialty pharmaceutical business are recognized when reasonably determinable and earned through the sale of the product by the third-party and collection is reasonably assured. Notification from the third-party licensee of the royalties earned under the license agreement is the basis for royalty revenue recognition. This information generally is received from the licensees in the quarter subsequent to the period in which the sales occur.

Contingent payments due under the asset purchase agreement for the sale of our former specialty pharmaceutical business are recognized as revenue when the milestone has been achieved, collection is assured, such payments are non-refundable and no further effort is required on the part of the Company or the other party to complete the earning process.

Income Taxes

Under the asset and liability method of accounting for income taxes, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. 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. As of September 30, 2022, we believe, based on our projections, that it is more likely than not that our net deferred tax assets, including our net operating losses from operating activities, will not be realized. We are positioned as a public company acquisition vehicle, where we can become an acquisition platform and more fully utilize our NOLs. We intend to acquire profitable businesses, entities or revenue streams that will generate sufficient income so that we can utilize our approximately $104 million NOLs. At this time, however, we cannot assure you that we will be successful in doing so. Accordingly, our management will continue to assess the need for this valuation allowance and will make adjustments when appropriate. Additionally, our management believes that our NOLs will not be limited by any changes in our ownership as a result of the successful completion of the Rights Offering (See Note 12 to the Condensed Consolidated Financial Statements).

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Forward-Looking Information and Factors That May Affect Future Results

This Quarterly Report on Form 10-Q contains forward-looking statements within the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. All statements contained in the Quarterly Report on Form 10-Q, other than statements that are purely historical, are forward-looking statements. Forward-looking statements can be identified by the use of forward-looking terminology such as the words “believes,” “expects,” “may,” “will,” “should,” “potential,” “anticipates,” “plans” or “intends” or the negative thereof, or other variations thereof, or comparable terminology, or by discussions of strategy. Forward-looking statements are based upon management’s present expectations, objectives, anticipations, plans, hopes, beliefs, intentions or strategies regarding the future and are subject to known and unknown risks and uncertainties that could cause actual results, events or developments to be materially different from those indicated in such forward-looking statements, including, but not limited to, the following risks and uncertainties:

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A more detailed discussion of these risks and uncertainties and other factors that could affect results is contained in our filings with the SEC, including in Item 1A. “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2021. These risks and uncertainties and other factors should be considered carefully and readers are cautioned not to place undue reliance on such forward-looking statements. As such, no assurance can be given that the future results covered by the forward-looking statements will be achieved. All information in this Quarterly Report on Form 10-Q is as of the date of this report, unless otherwise indicated, and we undertake no duty to update this information.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk.

As a smaller reporting company, we are not required to provide information required by this item.

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Item 4. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

Our management, consisting of Richard L. Feinstein who serves as our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), as of September 30, 2022. Disclosure controls and procedures are designed to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosures. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of September 30, 2022, the Company’s disclosure controls and procedures were effective.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act, during the quarter ended September 30, 2022 that have materially affected, or are reasonably likely to materially affect our internal control over financial reporting.

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Part II – OTHER INFORMATION

Item 1A. Risk Factors.

There are no material changes from the risk factors previously disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed with the SEC on February 25, 2022.

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Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act, during the quarter ended September 30, 2022 that have materially affected, or are reasonably likely to materially affect our internal control over financial reporting.

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Part II – OTHER INFORMATION

Item 1A. Risk Factors.

There are no material changes from the risk factors previously disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed with the SEC on February 25, 2022.

Item 5. Other Information.

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Item 6. Exhibits.

(a) Exhibits required by Item 601 of Regulation S-K.

+Filed herewith.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

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