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Disclosery

QTTB Q32 BIO INC

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Common Stock (common), issuer CIK 1661998

69 managers (71 13F filers) reported a position in QTTB shares at 2026-06-30, 22,179,077 shares in all. 27 filers opened a position and 8 filers sold out during the quarter.

Managers
69
13F filers
71
New
27
Added
17
Reduced
14
Sold out
8
Shares held by filers
22,179,077

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
ORBIMED ADVISORS LLCin group ORBIMED ADVISORS LLC4,127,987$52.6M1%+1,875,00013F-HRTimelineGroup
Boxer Capital Management, LLCin group Boxer Capital Management, LLC3,149,310$40.1M3.02%new13F-HRTimelineGroup
Atlas Venture Life Science Advisors, LLC2,717,106$34.6M3.93%+625,00013F-HRTimeline
BVF INC/ILin group BVF INC/IL2,350,000$29.9M0.77%new13F-HRTimelineGroup
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.2,332,457$29.7M0.26%new13F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.1,173,396$14.9M0.02%new13F-HRTimelineGroup
Opaleye Management Inc.931,000$11.9M1.07%-325,22813F-HRTimeline
Logos Global Management LP800,000$10.2M0.44%new13F-HRTimeline
SummitTX Capital, L.P.733,774$9.35M0.25%new13F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding589,844$7.51M+231,533Timeline
Ikarian Capital, LLCin group Ikarian Capital, LLC430,000$5.48M0.9%new13F-HRTimelineGroup
Woodline Partners LP286,212$3.65M0.01%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC272,752$3.47M<0.01%+253,98213F-HRTimelineGroup
Sanofi244,083$3.11M0.58%013F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC218,234$2.78M<0.01%+45,64813F-HRTimelineGroup
ACORN CAPITAL ADVISORS, LLC216,171$2.75M0.75%-98,88113F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC179,600$2.29M<0.01%-27,31513F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC162,747$2.07M<0.01%+97,14813F-HRTimelineGroup
MONIMUS CAPITAL MANAGEMENT, LP132,036$1.68M0.43%-2,27413F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC130,427$1.66M0.03%new13F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC122,690$1.56M<0.01%+4,53813F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC120,663$1.54M<0.01%+105,18213F-HR/ATimelineGroup
BlackRock, Inc.in group BlackRock, Inc.118,507$1.51M<0.01%+32,36013F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP67,045$854K<0.01%+14,60513F-HRTimelineGroup
Carlyle Group Inc.in group Carlyle Group Inc.60,363$769K0.01%-1,042,37813F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP52,214$665K<0.01%+10,70013F-HR/ATimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP49,582$632K<0.01%+7,23613F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd36,396$464K<0.01%new13F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC34,613$441K0.01%+22,00013F-HRTimeline
DAFNA Capital Management LLC32,896$419K0.08%new13F-HRTimeline
Knott David M Jr30,412$387K0.2%new13F-HRTimeline
Affinity Asset Advisors, LLC27,777$354K0.02%013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC23,790$303K<0.01%new13F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP23,631$301K<0.01%-1,40213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP23,588$301K<0.01%new13F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…23,342$297K<0.01%new13F-HRTimelineGroup
MANGROVE PARTNERS IM, LLC22,150$282K0.02%new13F-HRTimeline
LPL Financial LLC18,170$231K<0.01%new13F-HRTimeline
Cambridge Investment Research Advisors,…18,081$230K<0.01%-16,94413F-HR/ATimeline
HRT FINANCIAL LP15,949$203K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG15,008$191K<0.01%+14,73813F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management12,342$157K<0.01%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP11,336$144K<0.01%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC10,928$139K<0.01%new13F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd10,874$139K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY6,456$82.3K<0.01%-3,10413F-HRTimelineGroup
FMR LLCin group FMR LLC3,388$43.2K<0.01%-1213F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC2,888$36.8K<0.01%new13F-HRTimelineGroup
Private Wealth Asset Management, LLC1,700$21.7K<0.01%new13F-HRTimeline
Arax Advisory Partners1,111$14.2K<0.01%-3713F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.1,050$13.4K<0.01%-1,22313F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…577$7.35K<0.01%013F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP500$6.58K<0.01%013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…454$5.78K<0.01%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS303$3.86K<0.01%013F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…240$3.06K<0.01%-4,40013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC166$2.12K<0.01%013F-HRTimeline
Truvestments Capital LLC162$2.06K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.124$1.58K<0.01%013F-HRTimelineGroup
Allworth Financial LP108$1.38K<0.01%+1013F-HRTimeline
SBI Securities Co., Ltd.94$1.2K<0.01%-1013F-HRTimeline
Federation des caisses Desjardins du Qu…70$888<0.01%013F-HRTimeline
Clearstead Advisors, LLC67$854<0.01%new13F-HRTimeline
Caitong International Asset Management …45$573<0.01%new13F-HRTimeline
GROUP ONE TRADING LLC34$433<0.01%013F-HRTimeline
HARBOUR INVESTMENTS, INC.11$140<0.01%013F-HRTimeline
AdvisorNet Financial, Inc2$25<0.01%013F-HRTimeline
DANSKE BANK A/S1$13<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA43$00%-2,70113F-HRTimelineGroupValue filed as zero, left out of ratios.

Events

  • Frazier Life Sciences Public Fund, L.P. and 8 other reporting persons reported 1,755,116 QTTB shares, 5.9% of the class, as of 2026-10-02, in a 13G filed 2026-10-09. 0001231919-26-001441

    Accepted , ingested