A business in context

VISK research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

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Filing timeline

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SEC submissions · retrieved 2026-09-07 · 8010 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001104659-26-089804

  2. 8-K · Current report

    Report date 2026-04-30 · 0001104659-26-055632 · Items 1.01,3.03,5.03,7.01,9.01

  3. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001104659-26-054911

  4. 8-K/A · Current report

    Report date 2026-03-26 · 0001104659-26-053523 · Items 9.01

  5. 8-K · Current report

    Report date 2026-04-29 · 0001104659-26-053522 · Items 5.02

  6. 10-K/A · Annual report

    Report date 2025-12-31 · 0001104659-26-051643

  7. 8-K · Current report

    Report date 2026-04-16 · 0001104659-26-046064 · Items 1.01,2.03,9.01

  8. 8-K · Current report

    Report date 2026-04-14 · 0001104659-26-044420 · Items 4.01,9.01

  9. 8-K · Current report

    Report date 2026-04-10 · 0001104659-26-043811 · Items 5.02

  10. 4 · Ownership change

    Report date 2026-03-25 · 0001012975-26-000274

  11. 8-K · Current report

    Report date 2026-03-26 · 0001104659-26-035301 · Items 2.01,3.02,5.01,5.02,5.03,7.01,9.01

  12. 8-K · Current report

    Report date 2026-03-25 · 0001104659-26-034187 · Items 7.01,9.01

  13. 8-K · Current report

    Report date 2026-03-20 · 0001104659-26-033624 · Items 1.01,3.03,5.03,7.01,9.01

  14. 8-K · Current report

    Report date 2026-03-19 · 0001104659-26-032092 · Items 7.01,9.01

  15. 8-K · Current report

    Report date 2026-03-18 · 0001104659-26-029952 · Items 1.01,3.03,9.01

  16. 8-K · Current report

    Report date 2026-03-16 · 0001104659-26-028449 · Items 7.01,9.01

  17. 8-K · Current report

    Report date 2026-03-10 · 0001104659-26-026169 · Items 1.01,3.03,7.01,9.01

  18. 8-K · Current report

    Report date 2026-03-09 · 0001104659-26-025217 · Items 7.01,9.01

  19. 10-K · Annual report

    Report date 2025-12-31 · 0001104659-26-022313

  20. 8-K · Current report

    Report date 2026-02-27 · 0001104659-26-021051 · Items 1.01,3.03,7.01,9.01

  21. 8-K · Current report

    Report date 2026-02-11 · 0001104659-26-013506 · Items 5.07,9.01

  22. 8-K · Current report

    Report date 2026-01-30 · 0001104659-26-008322 · Items 1.01,3.03,9.01

  23. 8-K · Current report

    Report date 2025-12-23 · 0001104659-25-124254 · Items 1.01,3.03,9.01

  24. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001104659-25-110410

  25. 8-K · Current report

    Report date 2025-10-24 · 0001104659-25-102127 · Items 1.01,7.01,9.01

  26. 8-K · Current report

    Report date 2025-09-30 · 0001104659-25-095078 · Items 1.01,3.03,9.01

  27. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001410578-25-001810

  28. 8-K · Current report

    Report date 2025-06-20 · 0001104659-25-061311 · Items 1.01,7.01,9.01

  29. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001410578-25-001164

  30. 10-K/A · Annual report

    Report date 2024-12-31 · 0001104659-25-040183

  31. 8-K · Current report

    Report date 2025-03-31 · 0001104659-25-030585 · Items 1.01,3.03,9.01

  32. 10-K · Annual report

    Report date 2024-12-31 · 0001410578-25-000177

  33. 8-K · Current report

    Report date 2025-01-07 · 0001104659-25-002591 · Items 5.02,8.01

  34. 4 · Ownership change

    Report date 2023-06-14 · 0001104659-23-072222

  35. 4 · Ownership change

    Report date 2021-08-13 · 0000921895-21-002138

  36. 4 · Ownership change

    Report date 2020-11-16 · 0001104659-20-126957

  37. 4 · Ownership change

    Report date 2020-11-13 · 0001104659-20-126458

  38. 4 · Ownership change

    Report date 2020-10-09 · 0001567619-20-017815

  39. 4 · Ownership change

    Report date 2020-08-24 · 0000921895-20-002331

  40. 4 · Ownership change

    Report date 2020-08-05 · 0000921895-20-002115

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-09-07 · 2026 Q2: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 0 transaction rows0SGrant / award: 0 transaction rows0AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

0 matching transaction rows.

No matching transaction rows in the covered quarter. This does not establish that no insider transactions occurred.

Identity & relationships

Wikidata structured data · retrieved 2026-09-07 · 1611 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0000727510Viskase Holdings, Inc.

No parent relationship is available in this import; this is not proof of independence.

Legal Entity Identifier
529900VN48L8QCMVPV36
GLEIF legal name
VISKASE HOLDINGS, INC.
Entity / LEI registration status
ACTIVE / LAPSED
Reference data updated
2026-06-01T13:06:56Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

GLEIF legal entity reference data · retrieved 2026-09-07 · 1177 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Enzon Pharmaceuticals · alias · wikidata
  • ENZON PHARMACEUTICALS, INC. · former SEC name · 2016-03-21 to 2026-03-25
  • ENZON PHARMACEUTICALS INC · former SEC name · 2006-03-29 to 2016-02-23
  • ENZON PHARMACEUTICALS INC · former SEC name · 2002-12-13 to 2006-03-22
  • ENZON PHARMACEUTICAL INC · former SEC name · 2002-12-10 to 2002-12-10
  • ENZON INC · former SEC name · 1995-10-26 to 2002-12-09
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Revenue in constant purchasing power

USD revenue expressed in 2026-07 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$26.0K$27.7K
2022-12-31$26.0K$29.7K
2021-12-31$701.0K$863.7K
2020-12-31$52.0K$67.1K
2019-12-31$207.0K$270.3K
2018-12-31$6.92M$9.20M
2017-12-31$8.38M$11.41M

Bureau of Labor Statistics · retrieved 2026-09-07 · 9 selected series; gaps remain missing

Explore the CPI history ↗