QTTB

Q32 Bio Inc.$12.94+0.23 (+1.85%)

Prev Close$12.70·MCap$65.6M·P/E2.41·Vol264.5K·Yield—

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Buys (12M)

$30.00M

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Sells (12M)

$80.8K

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Net Activity

Net Buyer

$29.92M

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Q32 Bio Inc. (QTTB) has been dominated by buying, with 2 insider purchases totaling $30.00M and 4 insider sales totaling $80.8K. The most recent insider transaction was by ORBIMED ADVISORS LLC (director, 10 percent owner: ), who purchased $15.00M worth of shares on Jun 1, 2026. Q32 Bio Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $65.6M.

QTTB Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Jun 1, 2026	ORBIMED ADVISORS LLC	director, 10 percent owner:	Buy	1,875,000	$8.00	$15.00M14.7% OS	3,502,987+115%
Jun 1, 2026	Xu Diyong	director, 10 percent owner:	Buy	1,875,000	$8.00	$15.00M14.7% OS	3,502,987+115%
Feb 27, 2026	Kalowski Lee	officer: CFO and President	Sell	3,995	$4.51	$18.0K	35,943
Feb 27, 2026	Morrison Jodie Pope	director, officer: CEO	Sell	9,896	$4.51	$44.7K	89,104
Feb 27, 2026	Violette Shelia M.	officer: Chief Scientific Officer	Sell	2,815	$4.51	$12.7K	55,569
Aug 26, 2025	Violette Shelia M.	Chief Scientific Officer	Sell	2,990	$1.80	$5.4K	0
Aug 14, 2024	TZIANABOS ARTHUR		Sell	265	$24.20	$6.4K	7,983
Apr 23, 2024	Alloway Paul	See Remarks	Sell	268	$24.21	$6.5K	2,596
Apr 23, 2024	Michaud Charles Jr	See Remarks	Sell	75	$24.20	$1.8K	927
Feb 15, 2024	TZIANABOS ARTHUR		Sell	13,037	$0.57	$7.4K	128,778
Jan 5, 2024	Alloway Paul	See Remarks	Sell	7,280	$0.57	$4.1K	28,036
Jan 5, 2024	Michaud Charles Jr	See Remarks	Sell	1,708	$0.57	$975.27	11,598
Sep 8, 2023	Seymour Albert	See Remarks	Sell	1,448	$1.15	$1.7K	150,874
Aug 7, 2023	Jordan Julie	Chief Medical Officer	Sell	1,853	$1.39	$2.6K	7,496
Aug 4, 2023	Jordan Julie	Chief Medical Officer	Sell	99	$1.31	$129.69	2,770
Mar 6, 2023	Alloway Paul	See Remarks	Sell	10,965	$1.45	$15.9K	16,706-40%
Jan 11, 2023	Alloway Paul	See Remarks	Sell	3,090	$1.39	$4.3K	20,103
Jan 11, 2023	Blum Michael Lee	Chief Commercial Officer	Sell	2,454	$1.39	$3.4K	13,538
Jan 11, 2023	Seymour Albert	See Remarks	Sell	3,620	$1.39	$5.0K	143,166
Jan 11, 2023	Smith W Bradford	See Remarks	Sell	3,729	$1.39	$5.2K	14,219
Jan 11, 2023	TZIANABOS ARTHUR	Director	Sell	10,616	$1.39	$14.8K	108,395
Jan 12, 2022	Cohn Gabriel	Chief Medical Officer	Sell	1,661	$3.78	$6.3K	2,629-39%
Jan 12, 2022	Kelly Timothy P	Chief Operating Officer	Sell	1,406	$3.78	$5.3K	2,224-39%
Jan 12, 2022	Seymour Albert	Chief Scientific Officer	Sell	1,661	$3.78	$6.3K	131,646
Jan 12, 2022	Smith W Bradford	CFO & Treasurer	Sell	2,182	$3.78	$8.2K	4,418-33%
Jan 12, 2022	TZIANABOS ARTHUR	President & CEO	Sell	5,354	$3.78	$20.2K	86,011
Sep 8, 2021	Kelly Timothy P	See Remarks.	Sell	54	$7.70	$415.80	0Exit
Mar 3, 2021	Kelly Timothy P	See Remarks.	Sell	6,232	$11.16	$69.6K	0Exit

QTTB Insider Buying Activity

The following table shows recent insider purchases of Q32 Bio Inc. (QTTB) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Jun 1, 2026	ORBIMED ADVISORS LLC	director, 10 percent owner:	Buy	1,875,000	$8.00	$15.00M14.7% OS	3,502,987+115%
Jun 1, 2026	Xu Diyong	director, 10 percent owner:	Buy	1,875,000	$8.00	$15.00M14.7% OS	3,502,987+115%

QTTB Insider Selling Activity

The following table shows recent insider sales of Q32 Bio Inc. (QTTB) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Feb 27, 2026	Kalowski Lee	officer: CFO and President	Sell	3,995	$4.51	$18.0K	35,943
Feb 27, 2026	Morrison Jodie Pope	director, officer: CEO	Sell	9,896	$4.51	$44.7K	89,104
Feb 27, 2026	Violette Shelia M.	officer: Chief Scientific Officer	Sell	2,815	$4.51	$12.7K	55,569
Aug 26, 2025	Violette Shelia M.	Chief Scientific Officer	Sell	2,990	$1.80	$5.4K	0
Aug 14, 2024	TZIANABOS ARTHUR		Sell	265	$24.20	$6.4K	7,983
Apr 23, 2024	Alloway Paul	See Remarks	Sell	268	$24.21	$6.5K	2,596
Apr 23, 2024	Michaud Charles Jr	See Remarks	Sell	75	$24.20	$1.8K	927
Feb 15, 2024	TZIANABOS ARTHUR		Sell	13,037	$0.57	$7.4K	128,778
Jan 5, 2024	Alloway Paul	See Remarks	Sell	7,280	$0.57	$4.1K	28,036
Jan 5, 2024	Michaud Charles Jr	See Remarks	Sell	1,708	$0.57	$975.27	11,598
Sep 8, 2023	Seymour Albert	See Remarks	Sell	1,448	$1.15	$1.7K	150,874
Aug 7, 2023	Jordan Julie	Chief Medical Officer	Sell	1,853	$1.39	$2.6K	7,496
Aug 4, 2023	Jordan Julie	Chief Medical Officer	Sell	99	$1.31	$129.69	2,770
Mar 6, 2023	Alloway Paul	See Remarks	Sell	10,965	$1.45	$15.9K	16,706-40%
Jan 11, 2023	Alloway Paul	See Remarks	Sell	3,090	$1.39	$4.3K	20,103
Jan 11, 2023	Blum Michael Lee	Chief Commercial Officer	Sell	2,454	$1.39	$3.4K	13,538
Jan 11, 2023	Seymour Albert	See Remarks	Sell	3,620	$1.39	$5.0K	143,166
Jan 11, 2023	Smith W Bradford	See Remarks	Sell	3,729	$1.39	$5.2K	14,219
Jan 11, 2023	TZIANABOS ARTHUR	Director	Sell	10,616	$1.39	$14.8K	108,395
Jan 12, 2022	Cohn Gabriel	Chief Medical Officer	Sell	1,661	$3.78	$6.3K	2,629-39%
Jan 12, 2022	Kelly Timothy P	Chief Operating Officer	Sell	1,406	$3.78	$5.3K	2,224-39%
Jan 12, 2022	Seymour Albert	Chief Scientific Officer	Sell	1,661	$3.78	$6.3K	131,646
Jan 12, 2022	Smith W Bradford	CFO & Treasurer	Sell	2,182	$3.78	$8.2K	4,418-33%
Jan 12, 2022	TZIANABOS ARTHUR	President & CEO	Sell	5,354	$3.78	$20.2K	86,011
Sep 8, 2021	Kelly Timothy P	See Remarks.	Sell	54	$7.70	$415.80	0Exit
Mar 3, 2021	Kelly Timothy P	See Remarks.	Sell	6,232	$11.16	$69.6K	0Exit