SCHEDULE 13G Filed 2026-10-09 Event — SEC 0001231919-26-001441 →

Frazier Life Sciences Public Fund, L.P. → Q32 Bio Inc. QTTB

Stake: — Shares: — CUSIP: 746964105 Class: Common Stock, $0.00001 par value

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

9 13D/G filings on this issuer

8 other filings besides this one

Filer Track Record

8 filings by this filer

7 other filings in the data moat

Short Interest · settle 2026-09-30

DTC 4.31

4,671,943 shares short · +23.8% vs prior

Other 13D/G Filings on Q32 Bio Inc.

Filed	Form	Filer	Stake	Shares
2026-07-20	SCHEDULE 13D/A	ORBIMED ADVISORS LLC	—	4,127,987	view →
2026-07-10	SCHEDULE 13G	Boxer Capital Management, LLC	—	—	view →
2026-06-04	SCHEDULE 13G	BIOTECHNOLOGY VALUE FUND L P	—	—	view →
2026-06-01	SCHEDULE 13D/A	ORBIMED ADVISORS LLC	—	4,127,987	view →
2026-05-28	SCHEDULE 13D/A	Atlas Venture Fund X, L.P.	3.60%	864,261	view →
2020-04-20	SC	Flynn James E	—	—	view →
2020-01-31	SC	Flynn James E	—	—	view →
2019-12-30	SC	Flynn James E	—	—	view →

Other Filings by Frazier Life Sciences Public Fund, L.P.

Filed	Form	Issuer	Stake	Shares
2026-09-21	SCHEDULE 13G	ACLARIS THERAPEUTICS, INC.	—	—	view →
2026-08-11	SCHEDULE 13D	Attovia Therapeutics, Inc.	13.50%	760,327	view →
2026-08-10	SCHEDULE 13D/A	MBX BIOSCIENCES, INC.	—	1,429,573	view →
2026-05-21	SCHEDULE 13D/A	KalVista Pharmaceuticals, Inc.	2.30%	1,249,165	view →
2025-09-30	SCHEDULE	MBX Biosciences, Inc. MBX	11.70%	5,224,095	view →
2025-09-17	SCHEDULE	HilleVax, Inc.	—	—	view →
2023-09-27	SC	HilleVax, Inc.	—	—	view →

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