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BOLT BOLT BIOTHERAPEUTICS INC

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COM NEW (common), issuer CIK 1641281

22 managers (24 13F filers) reported a position in BOLT shares at 2026-03-31, 613,252 shares in all. 3 filers opened a position and 2 filers sold out during the quarter.

Managers
22
13F filers
24
New
3
Added
6
Reduced
3
Sold out
2
Shares held by filers
613,252

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

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
Sofinnova Investments, Inc.137,721$556K0.03%013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC77,225$312K<0.01%+22,20013F-HRTimeline
Vivo Capital, LLC72,414$293K0.02%013F-HR/ATimeline
Pivotal bioVenture Partners Investment …in group Pivotal bioVenture Partners I…42,581$172K0.06%-51,99213F-HRTimelineGroup
T3 Companies, LLCin group T3 Companies, LLC38,000$154K0.21%013F-HRTimelineGroup
Board of Trustees of The Leland Stanfor…35,977$145K0.02%013F-HRTimeline
Pfizer Inc31,305$137K0.06%013F-HRTimeline
Lynx1 Capital Management LPin group Lynx1 Capital Management LP30,800$124K0.02%new13F-HRTimelineGroup
Nan Fung Group Holdings Ltd29,250$118K0.1%-29,09713F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC28,791$116K<0.01%+9,98813F-HRTimelineGroup
NANO CAP NEW MILLENNIUM GROWTH FUND L P27,500$111K0.1%+7,00013F-HRTimeline
Shay Capital LLC14,905$60.2K0.01%-36713F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…11,657$47.1K<0.01%new13F-HRTimelineGroup
VANGUARD GROUP INCgroup of 3 filers holding10,179$41.1KnewTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC10,109$40.8K<0.01%new13F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.9,711$39.2K<0.01%013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY3,189$12.9K<0.01%+6113F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,093$4.42K<0.01%+37013F-HRTimelineGroup
UBS Group AGin group UBS Group AG787$3.18K<0.01%+27213F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO42$179<0.01%013F-HR/ATimelineGroup
SBI Securities Co., Ltd.10$40<0.01%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC6$24<0.01%013F-HRTimelineGroup