secwatch.observer — SEC 8-K summary
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Issuer:     Lyell Immunopharma, Inc. (LYEL)
CIK:        0001806952
Form:       8-K
Filed at:   2025-05-28T23:59:59+00:00
Accession:  0001193125-25-129448
Event type: other_material
Sentiment:  negative
Materiality: 0.55
Item codes: 3.03, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Lyell Immunopharma announces 1-for-20 reverse stock split effective May 30, 2025
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- Reverse split at 1-for-20 ratio; effective 5:00 p.m. ET on May 30, 2025.
- Common stock begins split-adjusted trading on Nasdaq June 2, 2025.
- Proportionate adjustments to stock options, RSUs, and shares reserved under equity plans.
- Pre-split shares outstanding: ~296.2M; post-split: ~14.8M (subject to fractional cash-out).
- New CUSIP number: 55083R203; no change in par value or proportional ownership.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1806952/000119312525129448/0001193125-25-129448-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1806952/000119312525129448/d944707d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-25-129448

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