QTTB

Q32 Bio Inc.

Pharmaceutical PreparationsNasdaqNon-accelerated filer<br>Smaller reporting company

Total Trades

10

Buys

0

Sells

10

Largest Trade

$50K–$100K

Insiders

5

Institutional Funds

34

Inst. Value

$1M+

Activist Filings

13

Insider Trades

InsiderTitleTypeValueSharesPriceDate
Kalowski LeeCFO and PresidentSELL$15K–$50K4K$4.51Feb 28, 2026
Morrison Jodie PopeCEOSELL$15K–$50K10K$4.51Feb 28, 2026
Violette Shelia M.Chief Scientific O…SELL$1K–$15K3K$4.51Feb 28, 2026
Morrison Jodie PopeCEOSELL$50K–$100K23K$3.46Dec 5, 2025
Kalowski LeeCFO and PresidentSELL$15K–$50K9K$3.46Dec 5, 2025
Morrison Jodie PopeCEOSELL$15K–$50K10K$1.80Aug 28, 2025
Violette Shelia M.Chief Scientific O…SELL$1K–$15K3K$1.80Aug 28, 2025
Kalowski LeeCFO and PresidentSELL$1K–$15K4K$1.80Aug 28, 2025
Alloway PaulSee RemarksSELL$1K–$15K268$24.21Apr 23, 2024
Michaud Charles JrSee RemarksSELL$1K–$15K75$24.20Apr 23, 2024
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Institutional Ownership

13F filings as of Dec 31, 2025 · 34 funds holding

FundShares
ORBIMED ADVISORS LLC2.3M
Atlas Venture Life Science Advisors, LLC2.1M
Carlyle Group Inc.1.1M
PFIZER INC278K
Sanofi244K
RENAISSANCE TECHNOLOGIES LLC100K
GEODE CAPITAL MANAGEMENT, LLC92K
Monaco Asset Management SAM51K
ACADIAN ASSET MANAGEMENT LLC48K
Affinity Asset Advisors, LLC28K
HRT FINANCIAL LP25K
STATE STREET CORP21K
ADAR1 Capital Management, LLC20K
ADAR1 Capital Management, LLC20K
JANE STREET GROUP, LLC12K
MORGAN STANLEY5K
UBS Group AG5K
FEDERATED HERMES, INC.2K
VANGUARD GROUP INC2K
Global Retirement Partners, LLC2K

Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

Opaleye Management Inc.

SC 13G · Feb 21, 2026

8.7%

1.3M shares

Point72 Asset Management, L.P.

SC 13G · Feb 19, 2026

9.9%

2.1M shares

2.3%

278K shares

Sio Capital Management, LLC

SC 13G · Apr 8, 2025

0.0%

0 shares

BRISTOL MYERS SQUIBB CO

SC 13G/A · Feb 14, 2025

1.6%

200K shares

Sio Capital Management, LLC

SC 13G · Feb 10, 2025

5.7%

697K shares

5AM Ventures IV, L.P.

SC 13G/A · Nov 14, 2024

0.0%

0 shares

Bristol-Myers Squibb Company

SC 13G · Nov 13, 2024

6.2%

759K shares

Temasek Holdings (Private) Limited

SC 13G/A · Oct 25, 2024

2.6%

314K shares

Acorn Bioventures, L.P.

SC 13D · Apr 5, 2024

6.7%

803K shares

ATLAS VENTURE FUND X, L.P.

SC 13D · Apr 2, 2024

7.2%

864K shares

The Carlyle Group Inc.

SC 13G · Mar 29, 2024

9.2%

1.1M shares

OrbiMed Advisors LLC

SC 13D · Mar 28, 2024

18.9%

2.3M shares

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