NASDAQ: QTTB
Q32 Bio Inc Stock Ownership - Who owns Q32 Bio?

Insider buying vs selling

Have Q32 Bio Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Isaac MankeDirector2026-06-3053,521$2.80
$149.86kBuy
Orbimed Advisors LLCDirector2026-05-28625,000$8.00
$5.00MBuy
Orbimed Advisors LLCDirector2026-05-281,250,000$8.00
$10.00MBuy
Diyong XuDirector2026-05-28625,000$8.00
$5.00MBuy
Diyong XuDirector2026-05-281,250,000$8.00
$10.00MBuy
Jodie Pope MorrisonCEO2026-02-259,896$4.51
$44.67kSell
Lee KalowskiCFO and President2026-02-253,995$4.51
$18.03kSell
Shelia M. VioletteChief Scientific Officer2026-02-252,815$4.51
$12.71kSell
Jodie Pope MorrisonCEO2025-12-0222,506$3.46
$77.87kSell
Lee KalowskiCFO and President2025-12-029,072$3.46
$31.40kSell

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Net Insider Buy/Sell (L12M) Ownership

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QTTB Shareholders

What type of owners hold Q32 Bio Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Arch Venture Fund VIII LP19.38%5,768,694$93.45MInsider
James E. Flynn13.73%4,087,305$66.21MInsider
Diyong Xu9.67%2,877,987$46.62MInsider
Orbimed Advisors LLC9.67%2,877,987$46.62MInsider
Orbimed Advisors LLC7.57%2,252,987$36.50MInstitution
Atlas Venture Fund X LP7.03%2,092,106$33.89MInsider
David S. Grayzel7.03%2,092,106$33.89MInsider
Atlas Venture Life Science Advisors LLC7.03%2,092,106$33.89MInstitution
Opaleye Management Inc4.22%1,256,228$20.35MInstitution
Carlyle Group Inc3.70%1,102,741$17.86MInstitution

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QTTB vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
QTTB29.15%70.85%Net BuyingNet Buying
BNTC91.72%8.28%Net Buying
PBYI63.30%36.70%Net SellingNet Selling
VALN2.25%0.00%
PRTA52.52%47.48%Net SellingNet Selling

Q32 Bio Stock Ownership FAQ

Who owns Q32 Bio?

Q32 Bio (NASDAQ: QTTB) is owned by 31.68% institutional shareholders, 76.98% Q32 Bio insiders, and 0.00% retail investors. Arch Venture Fund VIII LP is the largest individual Q32 Bio shareholder, owning 5.77M shares representing 19.38% of the company. Arch Venture Fund VIII LP's Q32 Bio shares are currently valued at $89.99M.

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