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Q32 Bio Inc.

QTTB
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001661998

In the last 90 days, Q32 Bio Inc. insiders filed 0 open-market purchases and 3 sales; 72 institutions reported holding it in 13F filings for Q2 2026, worth $282.6M in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in Q32 Bio Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
61
−12 vs. Q1 2025
Shares held
8.98M
−428.4K (−4.6%) vs. Q1 2025
Total value
$13.4M
−$2.16M (−13.9%) vs. Q1 2025
New holders
10
12 more added
Sold out
22
19 more reduced

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting QTTB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 61 institutions
Q1 2021: 109 institutionsQ2 2021: 118 institutionsQ3 2021: 119 institutionsQ4 2021: 121 institutionsQ1 2022: 107 institutionsQ2 2022: 87 institutionsQ3 2022: 83 institutionsQ4 2022: 79 institutionsQ1 2023: 62 institutionsQ2 2023: 59 institutionsQ3 2023: 58 institutionsQ4 2023: 58 institutionsQ1 2024: 39 institutionsQ2 2024: 54 institutionsQ3 2024: 73 institutionsQ4 2024: 92 institutionsQ1 2025: 73 institutionsQ2 2025: 61 institutionsQ3 2025: 53 institutionsQ4 2025: 52 institutionsQ1 2026: 54 institutionsQ2 2026: 72 institutions
Value heldQ2 2025: $13.4M
Q1 2021: $272.7MQ2 2021: $239.9MQ3 2021: $252.1MQ4 2021: $123.0MQ1 2022: $89.7MQ2 2022: $49.9MQ3 2022: $38.7MQ4 2022: $27.3MQ1 2023: $20.0MQ2 2023: $15.9MQ3 2023: $20.8MQ4 2023: $11.4MQ1 2024: $125.9MQ2 2024: $144.2MQ3 2024: $405.8MQ4 2024: $37.8MQ1 2025: $15.5MQ2 2025: $13.4MQ3 2025: $16.6MQ4 2025: $26.7MQ1 2026: $60.6MQ2 2026: $282.6M
Institutions holding QTTB and their total value by quarter
QuarterHoldersValue
Q2 202672$282.6M
Q1 202654$60.6M
Q4 202552$26.7M
Q3 202553$16.6M
Q2 202561$13.4M
Q1 202573$15.5M
Q4 202492$37.8M
Q3 202473$405.8M
Q2 202454$144.2M
Q1 202439$125.9M
Q4 202358$11.4M
Q3 202358$20.8M
Q2 202359$15.9M
Q1 202362$20.0M
Q4 202279$27.3M
Q3 202283$38.7M
Q2 202287$49.9M
Q1 2022107$89.7M
Q4 2021121$123.0M
Q3 2021119$252.1M
Q2 2021118$239.9M
Q1 2021109$272.7M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Q32 Bio Inc.; share changes are against Q1 2025.

Institutions holding QTTB in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
OrbiMed Advisors LLC2,252,987$3.36M0.08%00.0%Unchanged
Atlas Venture Life Science Advisors, LLC2,092,106$3.12M0.47%00.0%Unchanged
Carlyle Group Inc.1,102,741$1.62M0.03%00.0%Unchanged
Acorn Capital Advisors, LLC803,425$1.20M0.78%00.0%Unchanged
Monaco Asset Management SAM591,937$882.0K0.33%+86,486+17.1%Added
ARCH Venture Management, LLC320,482$477.5K0.16%00.0%Unchanged
Pfizer Inc277,777$413.9K0.07%00.0%Unchanged
Vanguard Group Inc269,429$401.4K0.00%−39,785−12.9%Reduced
Sanofi244,083$363.7K0.21%00.0%Unchanged
BlackRock, Inc.178,677$266.2K0.00%−278,694−60.9%Reduced
Trustees of Columbia University in the City of New York133,903$199.5K0.03%00.0%Unchanged
Millennium Management LLC130,379$194.3K0.00%+130,379New
Renaissance Technologies LLC77,000$114.7K0.00%+77,000New
Goldman Sachs Group Inc63,539$94.7K0.00%+19,166+43.2%Added
Geode Capital Management, LLC61,599$91.8K0.00%−75,910−55.2%Reduced
Jane Street Group, LLC46,635$69.5K0.00%+46,635New
FMR LLC42,439$63.2K0.00%−19,952−32.0%Reduced
Acadian Asset Management LLC29,739$44.0K0.00%−1,399−4.5%Reduced
Affinity Asset Advisors, LLC27,777$41.4K0.01%00.0%Unchanged
State Street Corp26,937$40.1K0.00%−110,561−80.4%Reduced
AQR Capital Management LLC26,530$39.5K0.00%−14,772−35.8%Reduced
Northern Trust Corp26,058$38.8K0.00%−34,076−56.7%Reduced
Morgan Stanley18,648$27.8K0.00%+3,991+27.2%Added
Marshall Wace, LLP16,928$25.2K0.00%+16,928New
Oppenheimer & Co Inc13,000$19.4K0.00%+13,000New
Susquehanna International Group, LLP12,909$19.2K0.00%+2,099+19.4%Added
UBS Group AG12,576$18.7K0.00%−20,855−62.4%Reduced
Mariner, LLC11,780$17.6K0.00%−73,000−86.1%Reduced
Raymond James Financial Inc10,746$16.0K0.00%00.0%Unchanged
DLK Investment Management, LLC10,333$15.4K0.01%+10,333New
SBI Securities Co., Ltd.8,155$12.2K0.00%+8,008+5,447.6%Added
Royal Bank of Canada6,318$10.0K0.00%+4,630+274.3%Added
Tower Research Capital LLC (TRC)6,252$9.31K0.00%+3,075+96.8%Added
EverSource Wealth Advisors, LLC5,301$7.90K0.00%+5,209+5,662.0%Added
CWM, LLC4,769$7.00K0.00%+1,310+37.9%Added
Federated Hermes, Inc.2,452$3.65K0.00%−30−1.2%Reduced
China Universal Asset Management Co., Ltd.2,450$3.65K0.00%+7+0.3%Added
Bank of America Corp2,198$3.27K0.00%−5,094−69.9%Reduced
Citigroup Inc1,822$2.71K0.00%−2,580−58.6%Reduced
SRS Capital Advisors, Inc.1,111$1.66K0.00%+1,111New
Barclays PLC1,053$1.57K0.00%−8,117−88.5%Reduced
Simplex Trading, LLC813$1.00K0.00%+813New
Nisa Investment Advisors, LLC589$8780.00%+589New
Mirae Asset Global Investments Co., Ltd.471$7020.00%+63+15.4%Added
Russell Investments Group, Ltd.454$6760.00%−197−30.3%Reduced
BNP Paribas Arbitrage, SA403$6000.00%−182−31.1%Reduced
GF Fund Management Co. Ltd.264$3930.00%00.0%Unchanged
Clark Wealth Partners199$2970.00%00.0%Unchanged
Advisor Group Holdings, Inc.179$2660.00%−126−41.3%Reduced
Wells Fargo & Company139$2070.00%−3,519−96.2%Reduced
Federation des caisses Desjardins du Quebec70$1040.00%00.0%Unchanged
True Wealth Design, LLC67$1000.00%+60+857.1%Added
Allworth Financial LP16$240.00%00.0%Unchanged
Harbour Investments, Inc.11$160.00%00.0%Unchanged
St Germain D J Co Inc11$160.00%00.0%Unchanged
CBIZ Investment Advisory Services, LLC5$70.00%00.0%Unchanged
Essential Partners LLC5$70.00%+5New
AdvisorNet Financial, Inc2$30.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd2$30.00%00.0%Unchanged
National Bank of Canada1$10.00%−5,038−100.0%Reduced
Danske Bank A/S1$10.00%00.0%Unchanged
Nuveen, LLC0$00.00%−55,886−100.0%Sold out
Deutsche Bank AG0$00.00%−25,018−100.0%Sold out
Bank of New York Mellon Corp0$00.00%−16,192−100.0%Sold out
Squarepoint Ops LLC0$00.00%−14,528−100.0%Sold out
Charles Schwab Investment Management Inc0$00.00%−14,190−100.0%Sold out
Corton Capital Inc.0$00.00%−11,607−100.0%Sold out
Rhumbline Advisers0$00.00%−11,156−100.0%Sold out
Mirae Asset Global ETFs Holdings Ltd.0$00.00%−3,619−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−2,986−100.0%Sold out
JPMorgan Chase & Co0$00.00%−2,930−100.0%Sold out
New York State Common Retirement Fund0$00.00%−2,400−100.0%Sold out
Police & Firemen's Retirement System of New Jersey0$00.00%−1,228−100.0%Sold out
Coldstream Capital Management Inc0$00.00%−1,114−100.0%Sold out
Ameritas Investment Partners, Inc.0$00.00%−591−100.0%Sold out
Fortitude Family Office, LLC0$00.00%−562−100.0%Sold out
Legal & General Group Plc0$00.00%−523−100.0%Sold out
California State Teachers Retirement System0$00.00%−437−100.0%Sold out
CoreCap Advisors, LLC0$00.00%−107−100.0%Sold out
Sterling Capital Management LLC0$00.00%−105−100.0%Sold out
Farther Finance Advisors, LLC0$00.00%−6−100.0%Sold out
Thompson Investment Management, Inc.0$00.00%−4−100.0%Sold out
Amalgamated Bank0$00.00%−209−100.0%Sold out