Bolt Biotherapeutics, Inc.
BOLT- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001641281
In the last 90 days, Bolt Biotherapeutics, Inc. insiders filed 2 open-market purchases and 3 sales; 23 institutions reported holding it in 13F filings for Q2 2026, worth $2.31M in total; no superinvestor holds it.
Holders of 5% or more of BOLT
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Bolt Biotherapeutics, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Tang Capital Management LLC | 13G/A | 9.90%3.81M shares | – | May 15, 20251 filing | May 15, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
7 Schedule 13D and 13G filings on Bolt Biotherapeutics, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Feb 26, 20267:22 PM ET | Pivotal bioVenture Partners Fund I, L.P.and 10 others | 13D/A | 4.60%87.5K shares | −2.10 ppfrom 6.70%Below 5% | Feb 24, 2026 | SEC |
| Feb 17, 20268:11 PM ET | Pivotal bioVenture Partners Fund I, L.P.and 10 others | 13D/A | 6.70%128.1K shares | – | Feb 5, 2026 | SEC |
| Feb 13, 20266:48 PM ET | Vivo Panda Fund, L.P.and 4 others | 13G/A | 3.80%72.4K shares | –Below 5% | Dec 31, 2025 | SEC |
| Nov 14, 20254:17 PM ET | Tang Capital Management LLCand 5 others | 13G/A | 3.50%66.9K shares | 0.00 ppfrom 3.50%Below 5% | Sep 30, 2025 | SEC |
| Nov 14, 20254:15 PM ET | Tang Capital Management LLCand 5 others | 13G/A | 3.50%66.9K shares | −5.20 ppfrom 8.70%Below 5% | Sep 30, 2025 | SEC |
| Aug 14, 20254:15 PM ET | Tang Capital Management LLCand 5 others | 13G/A | 8.70%166.9K shares | – | Jun 30, 2025 | SEC |
| May 15, 20254:15 PM ET | Tang Capital Management LLCand 5 others | 13G/A | 9.90%3.81M shares | – | Mar 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Bolt Biotherapeutics, Inc. shares.
No Form 144 notices for Bolt Biotherapeutics, Inc. are on file.