Bolt BiotherapeuticsBOLT

13F holders, Q1 2026 (March 31)
24holders +3
3new positions
2sold out
2famous investors
$4.06avg. 13F price*

At the end of Q1 2026, 24 institutions reported holding Bolt Biotherapeutics Inc. (BOLT) in their 13F filings, up 3 from Q4 2025. 3 opened new positions and 2 sold out. The largest holders were Sofinnova Investments, Inc. ($556K), Renaissance Technologies ($312K) and Vivo Capital, LLC ($293K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).

Company
Bolt Biotherapeutics Inc.
CUSIP
097702203
Latest filing quarter
Q2 2026

History

Number of 13F holders

0510152025 Q2 2025: 25Q2 2025Q3 2025: 24Q3 2025Q4 2025: 21Q4 2025Q1 2026: 24Q1 2026Q2 2026: 23Q2 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions3$212K
Exits2$2K

All 13F filers, Q4 2025 → Q1 2026: 92,457 shares bought and 81,743 shares sold, net +10,714 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 24 holders

Sofinnova Investments, Inc. 0.03% No change 137,721 $556K
Renaissance Technologies 0.00% Add +40.4% 77,225 $312K
Vivo Capital, LLC 0.02% No change 72,414 $293K
Pivotal bioVenture Partners Investment Advisor LLC 0.06% Reduce -55.0% 42,581 $172K
T3 Companies, LLC 0.21% No change 38,000 $154K
Board of Trustees of The Leland Stanford Junior University 0.02% No change 35,977 $145K
Pfizer Inc 0.06% No change 31,305 $137K
Lynx1 Capital Management LP 0.02% New 30,800 $124K
Nan Fung Group Holdings Ltd 0.10% Reduce -49.9% 29,250 $118K
Geode Capital Management, LLC 0.00% Add +53.1% 28,791 $116K
Nano Cap New Millennium Growth Fund L P 0.10% Add +34.1% 27,500 $111K
Shay Capital LLC 0.01% Reduce -2.4% 14,905 $60K
Susquehanna International Group, LLP 0.00% New 11,657 $47K
Citadel Advisors 0.00% New 10,109 $41K
BlackRock, Inc. 0.00% No change 9,711 $39K
Vanguard Capital Management LLC 0.00% — 7,060 $29K
Morgan Stanley 0.00% Add +1.9% 3,189 $13K
Vanguard Fiduciary Trust Co. 0.00% — 3,095 $13K
Tower Research Capital LLC (TRC) 0.00% Add +51.2% 1,093 $4K
UBS Group AG 0.00% Add +52.8% 787 $3K
JPMorgan Chase & Co. 0.00% No change 42 $179
Vanguard Global Advisers, LLC 0.00% — 24 $97
SBI Securities Co., Ltd. 0.00% No change 10 $40
Barclays PLC 0.00% No change 6 $24

"% of holder's portfolio" is BOLT's weight in each manager's 13F, not the share of Bolt Biotherapeutics Inc. the manager owns.