secwatch.observer — SEC 8-K summary
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Issuer:     Viskase Holdings, Inc. (ENZN)
CIK:        0000727510
Form:       8-K
Filed at:   2025-12-23T23:59:59+00:00
Accession:  0001104659-25-124254
Event type: other_material
Sentiment:  neutral
Materiality: 0.25
Item codes: 1.01, 3.03, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Enzon Pharmaceuticals extends poison pill expiration to Jan 31, 2026
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- Sixth Amendment extends Section 382 Rights Agreement Final Expiration Date from Dec 31, 2025 to Jan 31, 2026.
- Rights plan terms otherwise unchanged; adopted to preserve tax attributes under Section 382.
- This is the sixth extension of the original August 2020 rights agreement; prior amendments extended expiration sequentially.
- The amendment was entered into on Dec 23, 2025 between Enzon and Continental Stock Transfer & Trust Company.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/727510/000110465925124254/0001104659-25-124254-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/727510/000110465925124254/tm2534122d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-25-124254

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer