SCHEDULE Filed 2025-02-27 Event 2025-02-25 SEC 0001214659-25-003578 →

TANG CAPITAL MANAGEMENT LLC → ACELYRIN, Inc.

Stake: 7.30% Shares: 7,298,328 CUSIP: 00445A100 Class: Common Stock, par value $0.00001 per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

3 13D/G filings on this issuer

2 other filings besides this one

Filer Track Record

11 filings by this filer

10 other filings in the data moat

Short Interest

—

Not in latest FINRA snapshot

Other 13D/G Filings on ACELYRIN, Inc.

Filed	Form	Filer	Stake	Shares
2025-04-29	SCHEDULE	Trium Capital LLP	—	—	view →
2025-02-10	SCHEDULE	ACCESS INDUSTRIES MANAGEMENT, LLC	5.08%	5,095,778	view →

Other Filings by TANG CAPITAL MANAGEMENT LLC

Filed	Form	Issuer	Stake	Shares
2026-07-27	SCHEDULE 13D/A	Nano Dimension Ltd.	—	16,715,812	view →
2026-06-30	SCHEDULE 13D	Nano Dimension Ltd. NNDM	—	14,292,813	view →
2026-06-29	SCHEDULE 13G	Boundless Bio, Inc. BOLD	—	—	view →
2026-06-10	SCHEDULE 13G	Fulcrum Therapeutics, Inc. FULC	—	—	view →
2026-06-04	SCHEDULE 13D/A	Aurinia Pharmaceuticals Inc. AUPH	10.00%	13,044,106	view →
2026-05-13	SCHEDULE 13D/A	Kezar Life Sciences, Inc.	—	0	view →
2025-09-03	SCHEDULE	iTeos Therapeutics, Inc.	100.00%	10,000	view →
2025-05-19	SCHEDULE	Allakos Inc.	100.00%	10,000	view →
2025-04-03	SCHEDULE	Allakos Inc.	9.60%	8,693,687	view →
2025-03-04	SCHEDULE	Aurinia Pharmaceuticals Inc. AUPH	7.30%	10,029,500	view →

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