SCHEDULE Filed 2025-05-19 Event 2025-05-15 SEC 0001415889-25-013680 →

RA CAPITAL MANAGEMENT, L.P. → iTeos Therapeutics, Inc.

Stake: 4.90% Shares: 2,134,806 CUSIP: 46565G104 Class: Common Stock, $0.001 par value 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

8 13D/G filings on this issuer

7 other filings besides this one

Filer Track Record

62 filings by this filer

61 other filings in the data moat

Short Interest

—

Not in latest FINRA snapshot

Other 13D/G Filings on iTeos Therapeutics, Inc.

Filed	Form	Filer	Stake	Shares
2025-09-03	SCHEDULE	TANG CAPITAL MANAGEMENT LLC	100.00%	10,000	view →
2025-05-14	SCHEDULE	RA CAPITAL MANAGEMENT, L.P.	9.90%	4,163,276	view →
2024-11-18	SC	Boxer Capital Management, LLC	—	—	view →
2022-01-06	SC	Boxer Capital, LLC	—	—	view →
2021-12-10	SC	MPM BioVentures 2014, L.P.	—	—	view →
2021-10-19	SC	MPM BioVentures 2014, L.P.	—	—	view →
2021-09-21	SC	MPM BioVentures 2014, L.P.	—	—	view →

Other Filings by RA CAPITAL MANAGEMENT, L.P.

Filed	Form	Issuer	Stake	Shares
2026-01-09	SCHEDULE	Cidara Therapeutics, Inc.	—	—	view →
2025-11-07	SCHEDULE	LENZ Therapeutics, Inc. LENZ	13.60%	4,265,106	view →
2025-11-07	SCHEDULE	Sionna Therapeutics, Inc. SION	22.60%	10,071,712	view →
2025-11-03	SCHEDULE	89bio, Inc.	—	—	view →
2025-10-01	SCHEDULE	ARS Pharmaceuticals, Inc. SPRY	11.10%	10,940,977	view →
2025-09-30	SCHEDULE	PepGen Inc. PEPG	29.20%	20,099,753	view →
2025-08-11	SCHEDULE	Cidara Therapeutics, Inc.	13.30%	3,365,523	view →
2025-06-30	SCHEDULE	Cidara Therapeutics, Inc.	15.80%	3,365,523	view →
2025-05-14	SCHEDULE	iTeos Therapeutics, Inc.	9.90%	4,163,276	view →
2025-05-14	SCHEDULE	Werewolf Therapeutics, Inc. HOWL	15.00%	6,746,807	view →
2025-05-09	SCHEDULE	LENZ Therapeutics, Inc. LENZ	15.10%	4,260,606	view →
2025-04-30	SCHEDULE	Jade Biosciences, Inc. JBIO	4.10%	1,324,954	view →
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 →
2025-02-03	SCHEDULE	89bio, Inc.	15.10%	20,013,733	view →
2024-10-01	SC	Wave Life Sciences Ltd. WVE	—	—	view →
2024-07-01	SC	Eliem Therapeutics, Inc. CLYM	—	—	view →
2024-06-20	SC	Aerovate Therapeutics, Inc. JBIO	—	—	view →

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