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
Shelia M. VioletteChief Scientific Officer2026-02-252,815$4.51
$12.71kSell
Jodie Pope MorrisonCEO2026-02-259,896$4.51
$44.67kSell
Lee KalowskiCFO and President2026-02-253,995$4.51
$18.03kSell
Jodie Pope MorrisonCEO2025-12-0222,506$3.46
$77.87kSell
Lee KalowskiCFO and President2025-12-029,072$3.46
$31.40kSell
Lee KalowskiCFO and President2025-08-264,240$1.80
$7.64kSell
Shelia M. VioletteChief Scientific Officer2025-08-262,990$1.80
$5.38kSell
Jodie Pope MorrisonCEO2025-08-2610,494$1.80
$18.90kSell

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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 LP34.02%5,768,694$31.38MInsider
James E. Flynn24.10%4,087,305$22.23MInsider
Diyong Xu13.29%2,252,987$12.26MInsider
Orbimed Advisors LLC13.29%2,252,987$12.26MInsider
Orbimed Advisors LLC13.29%2,252,987$12.26MInstitution
Atlas Venture Fund X LP12.34%2,092,106$11.38MInsider
Atlas Venture Life Science Advisors LLC12.34%2,092,106$11.38MInstitution
David S. Grayzel12.34%2,092,106$11.38MInsider
Carlyle Group Inc6.50%1,102,741$6.00MInstitution
Mahendra Shah5.37%909,742$4.95MInsider

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QTTB vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
QTTB28.18%71.82%Net SellingNet Selling
NRXS14.06%34.69%Net BuyingNet Buying
ATYR55.92%15.71%Net Buying
FRMM23.32%76.68%Net Buying
PMN0.96%99.04%Net BuyingNet Buying

Q32 Bio Stock Ownership FAQ

Who owns Q32 Bio?

Q32 Bio (NASDAQ: QTTB) is owned by 47.44% institutional shareholders, 120.93% 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 34.02% of the company. Arch Venture Fund VIII LP's Q32 Bio shares are currently valued at $30.98M.

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