secwatch.observer — SEC 8-K summary
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Issuer:     ACELYRIN, Inc. (—)
CIK:        0001962918
Form:       8-K
Filed at:   2023-05-09T23:59:59+00:00
Accession:  0001193125-23-139427
Event type: other_material
Sentiment:  positive
Materiality: 0.85
Item codes: 5.03, 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

ACELYRIN closes upsized IPO, raises $621M; shares begin trading on Nasdaq
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- Closed IPO of 34,500,000 shares at $18.00 per share, including full exercise of underwriters' option for 4,500,000 additional shares.
- Gross proceeds of $621.0 million before underwriting discounts and expenses.
- Shares began trading on Nasdaq Global Select Market on May 5, 2023 under ticker SLRN.
- Joint book-running managers: Morgan Stanley, Jefferies, TD Cowen, and Piper Sandler.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1962918/000119312523139427/0001193125-23-139427-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1962918/000119312523139427/d444368d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-23-139427

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