--- title: "Viskase Holdings (VISK) news: merger" url: "https://aibio.space/companies/viskase/" publisher: "aibio.space (Biotech Investor Relations News)" summary: "VISK merger news: Enzon Pharmaceuticals (now Viskase Holdings) agrees all-stock merger with Viskase. Viskase Holdings, Inc. (OTC: VISK), United States." --- VISK Viskase Holdings, Inc. OTC · United States # Viskase Holdings (VISK) news VISK merger news Mergers · 2025-06-23 ## [Enzon Pharmaceuticals (now Viskase Holdings) agrees all-stock merger with Viskase](https://aibio.space/news/enzon-pharmaceuticals-now-viskase-holdings-agrees-all-stock-merger/) Enzon, which calls itself a public company acquisition vehicle, agreed on June 20, 2025 to merge with Viskase in an all-stock deal. Viskase holders would own about 84.1% of the combined company, and Enzon common holders about 2.06%. The 8-K and release give no Viskase revenue, debt or earnings. ## Latest Viskase Holdings news We have not published a story on Viskase Holdings yet. When there is news, it will appear here. ## Viskase Holdings at a glance - **Ticker**: VISK - **Listing**: OTC - **Country**: United States - **Cash, Jun 30, 2026**: $7.9 million ### Related companies - [Jupiter Neurosciences](https://aibio.space/companies/jupiter-neurosciences/) NASDAQ: JUNS - [NovaBridge Biosciences](https://aibio.space/companies/novabridge-biosciences/) NASDAQ: NBP - [Ovid Therapeutics](https://aibio.space/companies/ovid-therapeutics/) NASDAQ: OVID - [Biogen](https://aibio.space/companies/biogen/) NASDAQ: BIIB - [Lifecore Biomedical](https://aibio.space/companies/lifecore-biomedical/) NASDAQ: LFCR - [Collegium Pharmaceutical](https://aibio.space/companies/collegium-pharmaceutical/) NASDAQ: COLL - [Lipella Pharmaceuticals](https://aibio.space/companies/lipella-pharmaceuticals/) OTC: LIPO - [Sonoma Pharmaceuticals](https://aibio.space/companies/sonoma-pharmaceuticals/) NASDAQ: SNOA ### Also on OTC - [ZENITH CAPITAL CORPORATION](https://aibio.space/companies/zenith-capital/) ZHCLF - [CERo Therapeutics Holdings](https://aibio.space/companies/cero-therapeutics/) CERO - [NANOLOGIX INC](https://aibio.space/companies/nanologix/) NNLX - [Charlie's Holdings](https://aibio.space/companies/charlie-s/) CHUC - [CYIOS](https://aibio.space/companies/cyios/) CYIO - [Syros Pharmaceuticals](https://aibio.space/companies/syros-pharmaceuticals/) SYRS ## Viskase Holdings annual financials | Line | FY2025 | FY2024 | |---|---|---| | Revenue | | [$26,000](https://www.sec.gov/Archives/edgar/data/727510/000110465926022313/) | | Net income (loss) | [-$3.4 million](https://www.sec.gov/Archives/edgar/data/727510/000110465926022313/) | [$778,000](https://www.sec.gov/Archives/edgar/data/727510/000110465926022313/) | | Cash from operations | [-$3.0 million](https://www.sec.gov/Archives/edgar/data/727510/000110465926022313/) | [$1.1 million](https://www.sec.gov/Archives/edgar/data/727510/000110465926022313/) | | Cash and equivalents | [$9.2 million](https://www.sec.gov/Archives/edgar/data/727510/000110465926089804/) | [$46.9 million](https://www.sec.gov/Archives/edgar/data/727510/000110465926022313/) | Latest balance sheet, Jun 30, 2026 (10-Q): cash and equivalents $7.9 million. Figures as reported to the SEC in XBRL; each one links to its filing. Not adjusted, not investment advice. ## Questions about Viskase Holdings Is Viskase Holdings involved in a merger or acquisition? Our latest story on this, dated Jun 23, 2025: "Enzon Pharmaceuticals (now Viskase Holdings) agrees all-stock merger with Viskase". The story links the filing or release it is based on. [Read the story](https://aibio.space/news/enzon-pharmaceuticals-now-viskase-holdings-agrees-all-stock-merger/). What is the ticker symbol of Viskase Holdings? Viskase Holdings, Inc. trades under the ticker VISK on OTC. Where is Viskase Holdings listed? Viskase Holdings, Inc. is listed on OTC. What is the SEC CIK of Viskase Holdings? The SEC Central Index Key (CIK) for Viskase Holdings, Inc. is 727510. Its filings are on SEC EDGAR. How many shares does Viskase Holdings have outstanding? 14,331,620 shares as of 2026-08-03, per the cover page of its 10-Q filed 2026-08-03. Which country or territory is Viskase Holdings listed under? Our directory records Viskase Holdings, Inc. under United States. What does Viskase Holdings do? Our directory classifies Viskase Holdings, Inc. as: Pharmaceuticals: Major. This is a directory classification, not a description of the pipeline. What is the ISIN of Viskase Holdings? The ISIN recorded for Viskase Holdings, Inc. is US2939048011. Does aibio.space cover Viskase Holdings? aibio.space lists Viskase Holdings, Inc. among 2,820 public biotech companies and publishes its news here as stories appear. Where is Viskase Holdings incorporated? SEC records list its state or country of incorporation as DE. Is Viskase Holdings profitable? Viskase Holdings, Inc. reported a net loss of $3.4 million for the fiscal year ended Dec 31, 2025, and used $3.0 million of cash in operations, per its annual report to the SEC. How much cash does Viskase Holdings have? $7.9 million in cash at Jun 30, 2026, per its 10-Q. What is the latest Viskase Holdings (VISK) stock news? Our latest story on Viskase Holdings, dated Jun 23, 2025: "Enzon Pharmaceuticals (now Viskase Holdings) agrees all-stock merger with Viskase". Enzon, which calls itself a public company acquisition vehicle, agreed on June 20, 2025 to merge with Viskase in an all-stock deal. Viskase holders would own about 84.1% of the combined company, and Enzon common holders about 2.06%. The 8-K and release give no Viskase revenue, debt or earnings. [Source](https://aibio.space/news/enzon-pharmaceuticals-now-viskase-holdings-agrees-all-stock-merger/). What is Viskase Holdings's market cap? We do not publish live share prices. In its annual report, Viskase Holdings, Inc. put the market value of shares held by non-affiliates (public float) at $4.9 million as of Jun 30, 2025. Is Viskase Holdings a smaller reporting company? SEC records list Viskase Holdings, Inc.'s filer category as: Non-accelerated filer
Smaller reporting company. ## Investor discussion: Viskase Holdings Members talk about Viskase Holdings (VISK). Reader posts, not aibio.space reporting, and not investment advice. Rules 1. **Securities violations are strictly forbidden.** No market manipulation, no pump-and-dump, no false or misleading statements, and no inside information. 2. **Say whether you hold the stock.** Every post states long, short or no position. 3. **No paid or sponsored posts.** Do not post for anyone who pays or rewards you. 4. **No buy or sell calls and no price targets.** 5. **No accusations of crime or fraud against named people** unless you link a court filing or a regulator's release that makes them. 6. **No personal details and no spam.** No links at all for your first 7 days as a member. Posts that break the rules may be deleted without notice, and the account restricted or closed. See the [terms](https://aibio.space/terms/#discussion) and the [privacy policy](https://aibio.space/privacy/#discussion). ## Capital-markets timeline Financings, listing notices, splits, legal actions and other investor events at Viskase Holdings, newest first. Each line links the filing it comes from. 1. 2026-04-16 Legal Reported a change of independent auditor. SEC Form 8-K (Items 4.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/727510/000110465926044420/tm2611998d1_8k.htm) 2. 2026-03-26 Mergers Reported completing an acquisition or a sale of assets. SEC Form 8-K (Items 2.01,3.02,5.01,5.02,5.03,7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/727510/000110465926035301/tm269894d1_ex99-1.htm) 3. 2026-03-24 Listings Reported a reverse stock split. SEC Form 8-K (Items 1.01,3.03,5.03,7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/727510/000110465926033624/tm267492d15_ex99-1.htm) 4. 2026-02-27 Mergers Reported a merger or acquisition agreement. SEC Form 425. [Source](https://www.sec.gov/Archives/edgar/data/727510/000110465926021053/tm267491d2_8k.htm) 5. 2026-02-11 Listings Reported a shareholder vote on a reverse stock split or more authorized shares. SEC Form 8-K (Items 5.07,9.01). [Source](https://www.sec.gov/Archives/edgar/data/727510/000110465926013506/tm266062d2_8k.htm) 6. 2026-01-30 Financings Offered to buy back its own securities. SEC Form SC TO-I. [Source](https://www.sec.gov/Archives/edgar/data/727510/000110465926008693/tm2521156d8_sctoi.htm) 7. 2025-10-24 Mergers Reported a merger or acquisition agreement. SEC Form 8-K (Items 1.01,7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/727510/000110465925102127/tm2529311d1_ex99-1.htm) 8. 2025-06-23 Mergers Reported a merger or acquisition agreement. SEC Form 8-K (Items 1.01,7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/727510/000110465925061311/tm2518511d1_ex99-1.htm) ## Stock chart Price chart and quote supplied by TradingView, delayed as the exchange requires. It loads only if you choose to show it. Information only, not investment advice. [Open OTC:VISK on TradingView](https://www.tradingview.com/symbols/OTC-VISK/). ## SEC filings and registration - **SEC name**: Viskase Holdings, Inc. - **CIK**: 727510 - **Industry (SIC)**: Biological Products, (No Diagnostic Substances) (2836) - **US tickers**: VISK (OTC) - **State or country of incorporation**: DE - **Fiscal year ends**: December 31 - **Filer category**: Non-accelerated filer
Smaller reporting company - **Business address**: 333 EAST BUTTERFIELD ROAD, SUITE 400, LOMBARD, IL, 60148 - **Phone**: (630) 874-0700 - **Shares outstanding**: 14,331,620 as of 2026-08-03 (10-Q filed 2026-08-03) - **Former names**: ENZON PHARMACEUTICALS, INC.; ENZON PHARMACEUTICALS INC; ENZON PHARMACEUTICALS INC ### Recent filings (8-K and 6-K are the company's own announcements) - [10-Q](https://www.sec.gov/Archives/edgar/data/727510/000110465926089804/enzn-20260630x10q.htm) filed 2026-08-03 - [8-K](https://www.sec.gov/Archives/edgar/data/727510/000110465926055632/tm2613382d1_8k.htm) filed 2026-05-05 - [10-Q](https://www.sec.gov/Archives/edgar/data/727510/000110465926054911/enzn-20260331x10q.htm) filed 2026-05-04 - [8-K](https://www.sec.gov/Archives/edgar/data/727510/000110465926053522/tm2613266d1_8k.htm) filed 2026-05-01 - [8-K](https://www.sec.gov/Archives/edgar/data/727510/000110465926046064/tm2612273d1_8k.htm) filed 2026-04-21 - [8-K](https://www.sec.gov/Archives/edgar/data/727510/000110465926044420/tm2611998d1_8k.htm) filed 2026-04-16 - [8-K](https://www.sec.gov/Archives/edgar/data/727510/000110465926043811/tm2611809d1_8k.htm) filed 2026-04-15 - [8-K](https://www.sec.gov/Archives/edgar/data/727510/000110465926035301/tm269894d1_8k.htm) filed 2026-03-26 Source: [SEC EDGAR](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000727510), retrieved October 23, 2026. Shares outstanding is the cover-page figure from the latest periodic report. The SEC does not publish share prices. ## Listing details Viskase Holdings, Inc. is a public biotech or pharmaceutical company listed on OTC under the ticker VISK, recorded under United States. The directory classifies it as Pharmaceuticals: Major. aibio.space tracks 2,820 public biotech companies worldwide and publishes investor news on them. - **Company**: Viskase Holdings, Inc. - **Ticker**: VISK - **Listing**: OTC - **Country or territory**: United States - **Business scope**: Pharmaceuticals: Major - **ISIN**: US2939048011 - **Last quote in directory**: 2026-10-21 - **Directory source**: [Listing page](https://www.tradingview.com/symbols/OTC-VISK/) Listing facts come from our company directory, researched on October 22, 2026. A listing record does not certify that a security currently trades. [Tell us about a change](https://aibio.space/reputation/#update). Work at this company? [Claim this page](https://aibio.space/claim/). Published and maintained by aibio.space. Not investment advice. [How we work](https://aibio.space/disclosures/). Who manages this page **This page is managed by aibio.space.** The company does not run, edit or pay for this page. News, desk views and Investor Ranks are written and managed independently by aibio.space under our editorial and analytical judgment. Opinion only, not investment advice. [How we work](https://aibio.space/disclosures/#paid) · [Terms](https://aibio.space/terms/#news) · [Request a correction](https://aibio.space/reputation/#update) --- Source page: https://aibio.space/companies/viskase/. Facts in aibio.space stories are checked against company filings and releases; opinion is labelled. Cite as: aibio.space, "Viskase Holdings (VISK) news: merger", 2026-10-31, https://aibio.space/companies/viskase/