Q32 BIO INC.

PublicCIK: 1661998
QTTBNASDAQ
Location

WALTHAM, MA

13F Filings

Institutional Holders

Q32 BIO INC.QTTB— Latest position per institution from SEC 13F filings

15

Institutional holders

11.33M

Total shares held

103.43M

Estimated value

566.71K

Avg. position size

1

ORBIMED ADVISORS LLC

CIK 1055951

Shares

2.25M

Value

14.46M

Filed

Mar 31, 2026

2

ATLAS VENTURE LIFE SCIENCE ADVISORS, LLC

CIK 1917529

Shares

2.09M

Value

13.43M

Filed

Mar 31, 2026

3

OPALEYE MANAGEMENT INC.

CIK 1595855

Shares

1.26M

Value

8.06M

Filed

Mar 31, 2026

4

CARLYLE GROUP INC.

CIK 1527166

Shares

1.10M

Value

7.08M

Filed

Mar 31, 2026

5

SIO CAPITAL MANAGEMENT, LLC

CIK 1482416

Shares

697.41K

Value

2.40M

Filed

Dec 31, 2024

6

ADAGE CAPITAL PARTNERS GP, L.L.C.

CIK 1165408

Shares

404.41K

Value

18.04M

Filed

Sep 30, 2024

7

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

342.27K

Value

6.14M

Filed

Jun 30, 2024

8

VANGUARD GROUP INC

CIK 102909

Shares

321.05K

Value

1.07M

Filed

Dec 31, 2025

9

ARCH VENTURE MANAGEMENT, LLC

CIK 1274403

Shares

320.48K

Value

2.06M

Filed

Mar 31, 2026

10

ACORN CAPITAL ADVISORS, LLC

CIK 2054410

Shares

315.05K

Value

2.02M

Filed

Mar 31, 2026

11

TEMASEK HOLDINGS (PRIVATE) LTD

CIK 1021944

Shares

313.94K

Value

1.08M

Filed

Dec 31, 2024

12

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

306.40K

Value

1.97M

Filed

Mar 31, 2026

13

5AM VENTURE MANAGEMENT, LLC

CIK 1799883

Shares

251.99K

Value

4.52M

Filed

Jun 30, 2024

14

MACKENZIE FINANCIAL CORP

CIK 919859

Shares

246.30K

Value

1.58M

Filed

Mar 31, 2026

15

SANOFI

CIK 1121404

Shares

244.08K

Value

1.57M

Filed

Mar 31, 2026

16

RENAISSANCE TECHNOLOGIES LLC

CIK 1037389

Shares

206.91K

Value

1.33M

Filed

Mar 31, 2026

17

EVENTIDE ASSET MANAGEMENT, LLC

CIK 1442891

Shares

190K

Value

8.48M

Filed

Sep 30, 2024

18

ACADIAN ASSET MANAGEMENT LLC

CIK 916542

Shares

172.59K

Value

1.11K

Filed

Mar 31, 2026

19

HARVARD MANAGEMENT CO INC

CIK 1082621

Shares

162.97K

Value

7.27M

Filed

Sep 30, 2024

20

MONIMUS CAPITAL MANAGEMENT, LP

CIK 1848831

Shares

134.31K

Value

862.27K

Filed

Mar 31, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.