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Q32 Bio Inc.

QTTB
Healthcare|Biotechnology|US
$9.25
+0.40 (+4.52%)
DCF Value
$9.30
Tangible Book / Share
$12.55
Graham Number
$26.68
Cash / Share
$12.64

Ownership Breakdown

42.9%
Float
29.8M
Shares Outstanding
12.8M
Float Shares

Major Holders (40)

Combined: 256.1%

Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.

HolderType% of ClassSharesFiledFiling
Orbimed Advisors LLCInvestment adviser13.90%4,127,987Jul 20, 202613D/G
Orbimed Capital GP VII LLCOther11.80%3,502,987Jul 20, 202613D/G
Lampert Mark NIndividual9.99%2,367,524Jun 4, 202613D/G
BVF Partners L P/IlIA, PN9.99%2,367,524Jun 4, 202613D/G
BVF Inc/IlCorporation9.99%2,367,524Jun 4, 202613D/G
RA Capital Healthcare Fund, L.P.Partnership9.80%2,332,457Jun 4, 202613D/G
RA Capital Management, L.P.IA, PN9.80%2,332,457Jun 4, 202613D/G
Peter KolchinskyHC, IN9.80%2,332,457Jun 4, 202613D/G
Rajeev ShahHC, IN9.80%2,332,457Jun 4, 202613D/G
BVF GP Holdings LLCOther9.20%2,177,976Jun 4, 202613D/G
Aaron DavisHC, IN7.90%2,357,922Nov 6, 202613D/G
Boxer Holdings GP, LLCHolding company7.90%2,357,922Nov 6, 202613D/G
Boxer Holdings, LPHC, PN7.90%2,357,922Nov 6, 202613D/G
Boxer Capital Management, LLCInvestment adviser7.90%2,357,922Nov 6, 202613D/G
Bank of America Corp /De/Holding company7.40%2,205,390Oct 28, 202613D/G
Bristol-Myers Squibb CompanyCorporation6.23%759,145Nov 13, 202413D/G
FHMLSP, L.L.C.Other5.90%1,755,116Oct 9, 202613D/G
Frazier Life Sciences Public Fund, L.P.Partnership5.90%1,755,116Oct 9, 202613D/G
FHMLSP, L.P.Partnership5.90%1,755,116Oct 9, 202613D/G
Biotechnology Value Fund L PPartnership5.30%1,248,973Jun 4, 202613D/G
BVF I GP LLCOther5.30%1,248,973Jun 4, 202613D/G
Steven A. CohenIndividual4.95%1,173,396Aug 14, 202613D/G
Point72 Capital Advisors, Inc.Corporation4.95%1,173,396Aug 14, 202613D/G
Point72 Asset Management, L.P.Partnership4.95%1,173,396Aug 14, 202613D/G
Carlyle Genesis UK LLCOther4.10%691,735Jul 6, 202613D/G
CG Subsidiary Holdings L.L.C.Other4.10%691,735Jul 6, 202613D/G
The Carlyle Group Inc.Corporation4.10%691,735Jul 6, 202613D/G
Carlyle Holdings I L.P.Partnership4.10%691,735Jul 6, 202613D/G
Carlyle Holdings I GP Sub L.L.C.Other4.10%691,735Jul 6, 202613D/G
Carlyle Holdings I GP Inc.Corporation4.10%691,735Jul 6, 202613D/G
Carlyle Investment Management L.L.C.Other4.10%691,735Jul 6, 202613D/G
TC Group, L.L.C.Other4.10%691,735Jul 6, 202613D/G
Abingworth Bioventures VII LPPartnership4.10%691,735Jul 6, 202613D/G
Abingworth LLPPartnership4.10%691,735Jul 6, 202613D/G
Biotechnology Value Fund II LPPartnership3.90%929,003Jun 4, 202613D/G
BVF II GP LLCOther3.90%929,003Jun 4, 202613D/G
Opaleye Management Inc.IA, CO3.76%1,120,000Nov 6, 202613D/G
Opaleye, L.P.Partnership3.76%1,120,000Nov 6, 202613D/G
James SilvermanIndividual3.76%1,120,000Nov 6, 202613D/G
Atlas Venture Fund X, L.P.Partnership3.60%864,261May 28, 202613D/G

Insider Trades (100)

Last 4 quarters: 4,902,275 acquired · 118,420 disposed
InsiderPositionDateTypeSharesPriceValueFiling
Morrison Jodie Popedirector, officer: CEOOct 6, 2026SELL3,221$8.32$26.8KForm 4
Kalowski LeeCFO and PresidentOct 6, 2026SELL1,301$8.32$10.8KForm 4
Violette Shelia M.Chief Scientific OfficerOct 6, 2026SELL917$8.32$7.6KForm 4
Morrison Jodie Popedirector, officer: CEOAug 25, 2026SELL9,845$16.56$163.0KForm 4
Kalowski LeeCFO and PresidentAug 25, 2026SELL3,972$16.56$65.8KForm 4
Violette Shelia M.Chief Scientific OfficerAug 25, 2026SELL2,798$16.56$46.3KForm 4
TZIANABOS ARTHURdirectorJun 12, 2026AWARD10,826$12.64$136.8KForm 4
Lundberg Sven AntedirectorJun 12, 2026AWARD10,826$12.64$136.8KForm 4
LAPORTE KATHLEENdirectorJun 12, 2026AWARD10,826$12.64$136.8KForm 4
Iwicki Mark TdirectorJun 12, 2026AWARD10,826$12.64$136.8KForm 4
Xu Diyongdirector, 10 percent owner: Jun 12, 2026AWARD10,826$12.64$136.8KForm 4
Manke IsaacdirectorJun 12, 2026AWARD10,826$12.64$136.8KForm 4
GRAYZEL DAVID S.directorJun 12, 2026AWARD10,826$12.64$136.8KForm 4
Thistle MarydirectorJun 12, 2026AWARD10,826$12.64$136.8KForm 4
Violette Shelia M.Chief Scientific OfficerJul 16, 2026AWARD37,500——Form 4
Morrison Jodie Popedirector, officer: CEOJul 16, 2026AWARD132,000——Form 4
Kalowski LeeCFO and PresidentJul 16, 2026AWARD53,250——Form 4
Manke IsaacdirectorJun 30, 2026OPTION EX.53,521$2.80$149.9KForm 4
Manke IsaacdirectorJun 30, 2026OPTION EX.53,521$2.80$149.9KForm 4
LAPORTE KATHLEENdirectorJun 12, 2026AWARD9,810$12.64$124.0KForm 4
Iwicki Mark TdirectorJun 12, 2026AWARD9,810$12.64$124.0KForm 4
Manke IsaacdirectorJun 12, 2026AWARD9,810$12.64$124.0KForm 4
TZIANABOS ARTHURdirectorJun 12, 2026AWARD9,810$12.64$124.0KForm 4
GRAYZEL DAVID S.directorJun 12, 2026AWARD9,810$12.64$124.0KForm 4
Thistle MarydirectorJun 12, 2026AWARD9,810$12.64$124.0KForm 4
Xu Diyongdirector, 10 percent owner: Jun 12, 2026AWARD9,810$12.64$124.0KForm 4
Lundberg Sven AntedirectorJun 12, 2026AWARD9,810$12.64$124.0KForm 4
Atlas Venture Opportunity Fund Ill, L.P.other: See RemarksMay 26, 2026OTHER0——Form 4
Xu Diyongdirector, 10 percent owner: May 28, 2026BUY1,250,000$8.00$10.0MForm 4
Xu Diyongdirector, 10 percent owner: May 28, 2026BUY625,000$8.00$5.0MForm 4
ORBIMED ADVISORS LLCdirector, 10 percent owner: May 28, 2026BUY1,250,000$8.00$10.0MForm 4
ORBIMED ADVISORS LLCdirector, 10 percent owner: May 28, 2026BUY625,000$8.00$5.0MForm 4
Violette Shelia M.Chief Scientific OfficerFeb 24, 2026AWARD37,500——Form 4
Morrison Jodie Popedirector, officer: CEOFeb 24, 2026AWARD132,000——Form 4
Kalowski LeeCFO and PresidentFeb 24, 2026AWARD53,250——Form 4
Kalowski LeeCFO and PresidentFeb 25, 2026SELL3,995$4.51$18.0KForm 4
Morrison Jodie Popedirector, officer: CEOFeb 25, 2026SELL9,896$4.51$44.7KForm 4
Violette Shelia M.Chief Scientific OfficerFeb 25, 2026SELL2,815$4.51$12.7KForm 4
LAPORTE KATHLEENdirectorJan 15, 2026AWARD23,272$3.60$83.8KForm 4
GRAYZEL DAVID S.directorJan 15, 2026AWARD16,363$3.60$58.9KForm 4
Lundberg Sven AntedirectorJan 15, 2026AWARD20,363$3.60$73.3KForm 4
Morrison Jodie Popedirector, officer: CEODec 2, 2025SELL22,506$3.46$77.9KForm 4
Kalowski LeeCFO and PresidentDec 2, 2025SELL9,072$3.46$31.4KForm 4
Lundberg Sven AntedirectorOct 23, 2025AWARD53,521$2.80$149.9KForm 4
Iwicki Mark TdirectorOct 23, 2025AWARD53,521$2.80$149.9KForm 4
Manke IsaacdirectorOct 23, 2025AWARD53,521$2.80$149.9KForm 4
Xu DiyongdirectorOct 23, 2025AWARD53,521$2.80$149.9KForm 4
Thistle MarydirectorOct 23, 2025AWARD53,521$2.80$149.9KForm 4
GRAYZEL DAVID S.directorOct 23, 2025AWARD53,521$2.80$149.9KForm 4
TZIANABOS ARTHURdirectorOct 23, 2025AWARD53,521$2.80$149.9KForm 4
LAPORTE KATHLEENdirectorOct 23, 2025AWARD53,521$2.80$149.9KForm 4
Morrison Jodie Popedirector, officer: CEOAug 26, 2025SELL10,494$1.80$18.9KForm 4
Violette Shelia M.Chief Scientific OfficerAug 26, 2025SELL2,990$1.80$5.4KForm 4
Kalowski LeeCFO and PresidentAug 26, 2025SELL4,240$1.80$7.6KForm 4
Manke IsaacdirectorJan 15, 2025AWARD19,008$3.20$60.8KForm 4
Manke IsaacdirectorFeb 24, 2025AWARD19,008$2.53$48.1KForm 4
Manke IsaacdirectorFeb 24, 2025AWARD12,767$2.54$32.4KForm 4
Manke IsaacdirectorFeb 24, 2025AWARD2,627$2.54$6.7KForm 4
Manke IsaacdirectorFeb 24, 2025DISPOSED2,627$18.00$47.3KForm 4
Manke IsaacdirectorFeb 24, 2025DISPOSED12,767$16.82$214.7KForm 4
Manke IsaacdirectorFeb 24, 2025DISPOSED19,008$3.20$60.8KForm 4
Kalowski LeeCFO and PresidentFeb 24, 2025AWARD161,323$2.54$409.8KForm 4
Kalowski LeeCFO and PresidentFeb 24, 2025AWARD53,250——Form 4
Kalowski LeeCFO and PresidentFeb 24, 2025AWARD16,901$2.54$42.9KForm 4
Kalowski LeeCFO and PresidentFeb 24, 2025DISPOSED161,323$16.82$2.7MForm 4
Kalowski LeeCFO and PresidentFeb 24, 2025DISPOSED16,901$17.08$288.7KForm 4
LAPORTE KATHLEENdirectorFeb 24, 2025AWARD12,767$2.54$32.4KForm 4
LAPORTE KATHLEENdirectorFeb 24, 2025AWARD5,431$2.54$13.8KForm 4
LAPORTE KATHLEENdirectorFeb 24, 2025AWARD1,947$2.54$4.9KForm 4
LAPORTE KATHLEENdirectorFeb 24, 2025DISPOSED12,767$16.82$214.7KForm 4
LAPORTE KATHLEENdirectorFeb 24, 2025DISPOSED1,947$7.29$14.2KForm 4
TZIANABOS ARTHURdirectorFeb 24, 2025AWARD25,674$2.54$65.2KForm 4
TZIANABOS ARTHURdirectorFeb 24, 2025AWARD12,767$2.54$32.4KForm 4
TZIANABOS ARTHURdirectorFeb 24, 2025DISPOSED12,767$16.82$214.7KForm 4
TZIANABOS ARTHURdirectorFeb 24, 2025DISPOSED25,674$7.09$182.0KForm 4
Morrison Jodie Popedirector, officer: CEOFeb 24, 2025AWARD394,445$2.54$1.0MForm 4
Morrison Jodie Popedirector, officer: CEOFeb 24, 2025AWARD152,700$2.54$387.9KForm 4
Morrison Jodie Popedirector, officer: CEOFeb 24, 2025AWARD132,000——Form 4
Morrison Jodie Popedirector, officer: CEOFeb 24, 2025AWARD16,901$2.54$42.9KForm 4
Morrison Jodie Popedirector, officer: CEOFeb 24, 2025DISPOSED152,700$7.50$1.1MForm 4
Morrison Jodie Popedirector, officer: CEOFeb 24, 2025DISPOSED394,445$16.82$6.6MForm 4
Morrison Jodie Popedirector, officer: CEOFeb 24, 2025DISPOSED16,901$17.08$288.7KForm 4
Xu DiyongdirectorFeb 24, 2025AWARD12,767$2.54$32.4KForm 4
Xu DiyongdirectorFeb 24, 2025DISPOSED12,767$16.82$214.7KForm 4
Iwicki Mark TdirectorFeb 24, 2025AWARD37,222$2.54$94.5KForm 4
Iwicki Mark TdirectorFeb 24, 2025AWARD25,534$2.54$64.9KForm 4
Iwicki Mark TdirectorFeb 24, 2025AWARD7,615$2.54$19.3KForm 4
Iwicki Mark TdirectorFeb 24, 2025DISPOSED7,615$7.29$55.5KForm 4
Iwicki Mark TdirectorFeb 24, 2025DISPOSED25,534$16.82$429.5KForm 4
Campagna JasonChief Medical OfficerFeb 24, 2025AWARD87,738$2.54$222.9KForm 4
Campagna JasonChief Medical OfficerFeb 24, 2025AWARD70,687$2.54$179.5KForm 4
Campagna JasonChief Medical OfficerFeb 24, 2025AWARD37,500——Form 4
Campagna JasonChief Medical OfficerFeb 24, 2025AWARD17,951$2.54$45.6KForm 4
Campagna JasonChief Medical OfficerFeb 24, 2025DISPOSED17,951$7.29$130.9KForm 4
Campagna JasonChief Medical OfficerFeb 24, 2025DISPOSED70,687$16.82$1.2MForm 4
GRAYZEL DAVID S.directorFeb 24, 2025AWARD18,595$2.54$47.2KForm 4
GRAYZEL DAVID S.directorJan 15, 2025AWARD18,595$3.20$59.5KForm 4
GRAYZEL DAVID S.directorFeb 24, 2025AWARD12,767$2.54$32.4KForm 4
GRAYZEL DAVID S.directorFeb 24, 2025AWARD2,569$2.54$6.5KForm 4
GRAYZEL DAVID S.directorFeb 24, 2025DISPOSED18,595$3.20$59.5KForm 4