SEC registrant · CIK 0000727510

Viskase Holdings, Inc. (VISK)

Viskase Holdings, Inc. (CIK 0000727510, ticker VISK, EIN 22-2372868) reported revenue of $26,000 for FY2024 (2024-01-01 to 2024-12-31) and net income of -$3.41 million (-$3,409,000) for FY2025 (2025-01-01 to 2025-12-31), as filed in its 10-K filed 2026-03-02 (accession 0001104659-26-022313).

Figures are as filed with the SEC in XBRL, in whole US dollars unless stated, for the company's own fiscal years (fiscal year ends December 31).

Data as of Oct 21, 2026 (Olympus publication) · Markdown version

  • Values are as filed by the company in its 10-K and 10-Q XBRL data. When a later filing restates a value, the latest filed value is shown and the first reported value is noted.

Identifiers

As published in the company's EDGAR submissions record.

IdentifierValue
CIK0000727510
TickersVISK (OTC)
EIN22-2372868
SIC industry code2836 Biological Products, (No Diagnostic Substances)
State or country of incorporationDE
Fiscal year endDecember 31
Filer categoryNon-accelerated filer<br>Smaller reporting company
Entity typeoperating
Olympus entity IDorg_1nwz2h8xq39af9ay62s21148mw
  • The EIN is the one the filer gave to EDGAR. The SEC does not verify it; Olympus checks only that it has nine digits and a prefix the IRS assigns.

Latest annual financial metrics

The latest annual value of each standardised metric, with the filing it was taken from.

MetricValueFiscal periodPeriodFormFiledAccession numberXBRL concept
Revenue$26,000FY20242024-01-01 to 2024-12-3110-K2026-03-020001104659-26-022313Revenues
Net income-$3,409,000FY20252025-01-01 to 2025-12-3110-K2026-03-020001104659-26-022313NetIncomeLoss
Total assets$42,813,000FY2025as of 2025-12-3110-K2026-03-020001104659-26-022313Assets
Stockholders' equity-$2,525,000FY2025as of 2025-12-3110-K2026-03-020001104659-26-022313StockholdersEquity
Operating cash flow-$3,010,000FY20252025-01-01 to 2025-12-3110-K2026-03-020001104659-26-022313NetCashProvidedByUsedInOperatingActivities
Diluted earnings per share-$0.07 per shareFY20252025-01-01 to 2025-12-3110-K2026-03-020001104659-26-022313EarningsPerShareDiluted
Shares outstanding74,214,603 sharesFY2025as of 2026-02-1010-K2026-03-020001104659-26-022313EntityCommonStockSharesOutstanding
  • Accession numbers link to the filing's index on SEC EDGAR.

Revenue and net income history

Every annual revenue and net income value served for fiscal years 2016-2025, newest first, each with its filing.

MetricFiscal periodPeriodValueFormFiledAccession number
RevenueFY20242024-01-01 to 2024-12-31$26,00010-K2026-03-020001104659-26-022313
RevenueFY20222022-01-01 to 2022-12-31$26,00010-K2024-03-200001410578-24-000245
RevenueFY20212021-01-01 to 2021-12-31$701,00010-K2023-02-160001410578-23-000136
RevenueFY20202020-01-01 to 2020-12-31$52,00010-K2022-02-250001410578-22-000226
RevenueFY20192019-01-01 to 2019-12-31$207,00010-K2021-02-230001104659-21-026712
RevenueFY20182018-01-01 to 2018-12-31$6,918,00010-K2020-02-190001104659-20-022802
RevenueFY20172017-01-01 to 2017-12-31$8,379,00010-K2019-02-210001144204-19-009301
RevenueFY20162016-01-01 to 2016-12-31$8,377,00010-K2018-03-210001144204-18-016199
Net incomeFY20252025-01-01 to 2025-12-31-$3,409,00010-K2026-03-020001104659-26-022313
Net incomeFY20242024-01-01 to 2024-12-31$778,00010-K2026-03-020001104659-26-022313
Net incomeFY20232023-01-01 to 2023-12-31$1,373,00010-K2025-02-210001410578-25-000177
Net incomeFY20222022-01-01 to 2022-12-31-$186,00010-K2024-03-200001410578-24-000245
Net incomeFY20212021-01-01 to 2021-12-31-$469,00010-K2023-02-160001410578-23-000136
Net incomeFY20202020-01-01 to 2020-12-31-$1,311,00010-K2022-02-250001410578-22-000226
Net incomeFY20192019-01-01 to 2019-12-31-$979,00010-K2021-02-230001104659-21-026712
Net incomeFY20182018-01-01 to 2018-12-31$5,849,00010-K2020-02-190001104659-20-022802
Net incomeFY20172017-01-01 to 2017-12-31$5,445,00010-K2019-02-210001144204-19-009301
Net incomeFY20162016-01-01 to 2016-12-31-$1,126,00010-K2018-03-210001144204-18-016199

Recent 10-K and 10-Q filings

The 12 most recent 10-K, 10-Q and amendment filings in EDGAR, newest first.

FormFiledPeriod of reportAccession numberDocument
10-Q2026-08-032026-06-300001104659-26-089804enzn-20260630x10q.htm
10-Q2026-05-042026-03-310001104659-26-054911enzn-20260331x10q.htm
10-K/A2026-04-292025-12-310001104659-26-051643enzn-20251231x10ka.htm
10-K2026-03-022025-12-310001104659-26-022313enzn-20251231x10k.htm
10-Q2025-11-122025-09-300001104659-25-110410enzn-20250930x10q.htm
10-Q2025-08-142025-06-300001410578-25-001810enzn-20250630x10q.htm
10-Q2025-05-092025-03-310001410578-25-001164enzn-20250331x10q.htm
10-K/A2025-04-282024-12-310001104659-25-040183enzn-20241231x10ka.htm
10-K2025-02-212024-12-310001410578-25-000177enzn-20241231x10k.htm
10-Q2024-11-052024-09-300001410578-24-001747enzn-20240930x10q.htm
10-Q2024-08-082024-06-300001410578-24-001220enzn-20240630x10q.htm
10-Q2024-05-102024-03-310001410578-24-000735enzn-20240331x10q.htm

Identifier registry

The company's identifiers in the Olympus identifier registry, each with how it was linked and its source.

SchemeValueHow linkedSourcePublished
SEC Central Index Key (CIK) · OLY-US-SEC-CIK0000727510published by the sourcedata.sec.gov/submissions/CIK0000727510.json2026-10-21
Employer Identification Number (EIN) · US-EIN22-2372868published by the sourcedata.sec.gov/submissions/CIK0000727510.json2026-10-21

Former names

NameFromTo
ENZON PHARMACEUTICALS, INC.2016-03-212026-03-25
ENZON PHARMACEUTICALS INC2006-03-292016-02-23
ENZON PHARMACEUTICALS INC2002-12-132006-03-22
ENZON PHARMACEUTICAL INC2002-12-102002-12-10
ENZON INC1995-10-262002-12-09

Sources

  • EDGAR submissions (nightly bulk archive) (company profile and filings) — U.S. Securities and Exchange Commission. EDGAR snapshot sha256:f7d2a4f18cb91aae, source date 2026-10-20. https://data.sec.gov/submissions/CIK0000727510.json
  • EDGAR XBRL company facts (nightly bulk archive) (financial metrics) — U.S. Securities and Exchange Commission. EDGAR snapshot sha256:01e4045aa34d7224, source date 2026-10-20. https://data.sec.gov/api/xbrl/companyfacts/CIK0000727510.json
  • Published by Olympus on Oct 21, 2026.
  • Source data: U.S. Securities and Exchange Commission (EDGAR). Values are as filed by the registrant; Olympus does not audit or adjust them.
  • Olympus is not affiliated with or endorsed by the U.S. Securities and Exchange Commission.

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