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Disclosery

QTTB Q32 BIO INC

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Common Stock (common), issuer CIK 1661998

53 managers (53 13F filers) reported a position in QTTB shares at 2025-09-30, 8,428,829 shares in all. 8 filers opened a position and 16 filers sold out during the quarter.

Managers
53
13F filers
53
New
8
Added
10
Reduced
18
Sold out
16
Shares held by filers
8,428,829

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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 LLC2,252,987$4.46M0.11%013F-HRTimelineGroup
Atlas Venture Life Science Advisors, LLC2,092,106$4.14M0.55%013F-HRTimeline
Carlyle Group Inc.in group Carlyle Group Inc.1,102,741$2.13M0.05%013F-HRTimelineGroup
ACORN CAPITAL ADVISORS, LLC803,425$1.59M0.81%013F-HRTimeline
ARCH Venture Management, LLC320,482$635K0.13%013F-HRTimeline
Monaco Asset Management SAM311,137$616K0.23%-280,80013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC295,409$585K<0.01%+25,98013F-HRTimelineGroup
Pfizer Inc277,777$550K0.13%013F-HRTimeline
Sanofi244,083$483K0.19%013F-HRTimeline
Trustees of Columbia University in the …133,903$265K0.04%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC104,772$207K<0.01%-25,60713F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.93,005$184K<0.01%-85,67213F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC88,496$175K<0.01%+26,89713F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC47,300$93.7K<0.01%-29,70013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP31,953$63.3K<0.01%+5,89513F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP31,506$62.4K<0.01%new13F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC29,739$58K<0.01%013F-HRTimelineGroup
Affinity Asset Advisors, LLC27,777$55K0.01%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP21,237$42K<0.01%-5,70013F-HRTimelineGroup
FMR LLCin group FMR LLC15,867$31.4K<0.01%-26,57213F-HRTimelineGroup
HRT FINANCIAL LP14,836$29K<0.01%new13F-HRTimeline
TWO SIGMA SECURITIES, LLC13,749$27.2K<0.01%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY11,343$22.5K<0.01%-7,30513F-HR/ATimelineGroup
DLK Investment Management, LLC10,333$20.5K0.01%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC10,117$20K<0.01%new13F-HRTimelineGroup
SBI Securities Co., Ltd.8,156$16.1K<0.01%+113F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…6,482$12.8K<0.01%+23013F-HRTimelineGroup
UBS Group AGin group UBS Group AG5,246$10.4K<0.01%-7,33013F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…5,025$9.95K<0.01%-27613F-HRTimelineGroup
Global Retirement Partners, LLC5,000$9.9K<0.01%new13F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.2,374$4.7K<0.01%-7813F-HRTimelineGroup
China Universal Asset Management Co., L…2,138$4.23K<0.01%-31213F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,525$3.02K<0.01%-67313F-HR/ATimelineGroup
Arax Advisory Partners1,215$2.4K<0.01%+10413F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA1,053$2K<0.01%-5,26513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC822$1.63K<0.01%-23113F-HR/ATimelineGroup
Allworth Financial LP610$1.21K<0.01%+59413F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…577$1.14K<0.01%new13F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.in group Mirae Asset Global Investment…472$935<0.01%+113F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…454$899<0.01%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS432$855<0.01%+2913F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC236$467<0.01%-1,58613F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.227$449<0.01%-3713F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.187$367<0.01%+813F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC166$329<0.01%-42313F-HRTimeline
Federation des caisses Desjardins du Qu…70$137<0.01%013F-HRTimeline
GROUP ONE TRADING LLC34$67<0.01%new13F-HRTimeline
HARBOUR INVESTMENTS, INC.11$22<0.01%013F-HRTimeline
ST GERMAIN D J CO INCin group ST GERMAIN D J CO INC11$22<0.01%013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO4$8<0.01%new13F-HR/ATimelineGroup
AdvisorNet Financial, Inc2$4<0.01%013F-HRTimeline
DANSKE BANK A/S1$2<0.01%013F-HR/ATimeline
CWM, LLCin group CWM, LLC219$00%-4,55013F-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