Q32 Bio Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Dilution of Shares: QTTB only recently listed within the past 12 months

Top 25 shareholders own 86.05% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
18.5%	OrbiMed Advisors LLC	2,252,987	US$55.3m	0%	0.84%
17.2%	Atlas Venture L.P.	2,092,106	US$51.4m	0%	5.79%
9.05%	Abingworth LLP	1,102,741	US$27.1m	0%	20.87%
6.6%	Acorn Bioventures	803,425	US$19.7m	0%	22.64%
6.23%	Bristol-Myers Squibb Company	759,145	US$18.6m	0%	no data
3.5%	FMR LLC	426,169	US$10.5m	137%	no data
3.35%	BlackRock, Inc.	408,659	US$10.0m	19.4%	no data
3.32%	Adage Capital Management, L.P.	404,411	US$9.9m	0%	0.02%
2.63%	Arch Venture Partners, L.P.	320,482	US$7.9m	0%	0.9%
2.58%	Temasek Holdings (Private) Limited	313,943	US$7.7m	0%	0.01%
2.34%	The Vanguard Group, Inc.	285,416	US$7.0m	106%	no data
1.56%	Eventide Asset Management, LLC	190,000	US$4.7m	0%	0.09%
1.34%	Harvard Management Company, Inc.	162,965	US$4.0m	0%	0.25%
1.08%	Geode Capital Management, LLC	131,768	US$3.2m	22.4%	no data
0.9%	State Street Global Advisors, Inc.	110,164	US$2.7m	35.5%	no data
0.88%	Woodline Partners LP	106,901	US$2.6m	0%	0.02%
0.82%	Millennium Management LLC	100,343	US$2.5m	0%	no data
0.63%	Point72 Asset Management, L.P.	76,685	US$1.9m	0%	0.01%
0.55%	Platinum Investment Management Limited	66,801	US$1.6m	-25.3%	0.06%
0.53%	Ensign Peak Advisors, Inc.	64,481	US$1.6m	0%	no data
0.53%	ADAR1 Capital Management, LLC	64,245	US$1.6m	-59%	0.31%
0.5%	Northern Trust Global Investments	61,255	US$1.5m	0%	no data
0.49%	Shelia Violette	60,151	US$1.5m	65.8%	no data
0.49%	Erste Asset Management GmbH	60,000	US$1.5m	0%	0.01%
0.46%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	55,886	US$1.4m	0%	no data