SCHEDULE Filed 2025-02-03 Event 2025-01-30 SEC 0001415889-25-002762 →

RA CAPITAL MANAGEMENT, L.P. → 89bio, Inc.

Stake: 15.10% Shares: 20,013,733 CUSIP: 282559103 Class: Common Stock, par value $0.001 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

2 13D/G filings on this issuer

1 other filing besides this one

Filer Track Record

8 filings by this filer

7 other filings in the data moat

Short Interest

—

Not in latest FINRA snapshot

Other 13D/G Filings on 89bio, Inc.

Filed	Form	Filer	Stake	Shares
2025-03-03	SCHEDULE	RA CAPITAL MANAGEMENT, L.P.	13.70%	20,013,733	view →

Other Filings by RA CAPITAL MANAGEMENT, L.P.

Filed	Form	Issuer	Stake	Shares
2025-03-17	SCHEDULE	Mineralys Therapeutics, Inc. MLYS	9.90%	6,287,597	view →
2025-03-10	SCHEDULE	Janux Therapeutics, Inc. JANX	19.90%	11,971,377	view →
2025-03-03	SCHEDULE	89bio, Inc.	13.70%	20,013,733	view →
2025-02-21	SCHEDULE	Solid Biosciences Inc. SLDB	9.90%	7,989,820	view →
2018-03-27	SC	Dicerna Pharmaceuticals Inc	—	—	view →
2018-02-16	SC	Ra Pharmaceuticals, Inc.	—	—	view →
2018-01-19	SC	Dicerna Pharmaceuticals Inc	—	—	view →

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