Bolt Biotherapeutics Ownership | Who Owns Bolt Biotherapeutics?
Bolt Biotherapeutics Ownership Summary
Bolt Biotherapeutics is owned by 7.86% institutional investors, 7.10% insiders, and 85.03% retail investors. Sofinnova investments is the largest institutional shareholder, holding 7.37% of BOLT shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.46% of its assets in Bolt Biotherapeutics shares.
BOLT Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Bolt Biotherapeutics | 7.86% | 7.10% | 85.03% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Biotech Stocks | 35.75% | 11.83% | 52.41% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Sofinnova investments | 137.72K | 7.37% | $556.39K |
| Renaissance | 77.22K | 4.13% | $311.99K |
| Vivo capital | 72.41K | 3.87% | $292.55K |
| Tang capital management | 66.88K | 3.49% | $355.80K |
| Samsara biocapital | 48.83K | 2.55% | $259.78K |
| Pivotal bioventure partners investment advisor | 42.58K | 2.28% | $172.03K |
| Board of trustees of the leland stanford junior university | 35.98K | 1.92% | $145.35K |
| Pfizer | 31.30K | 1.67% | $137.12K |
| Lynx1 capital management lp | 30.80K | 1.65% | $124.43K |
| Nan fung group | 29.25K | 1.56% | $118.17K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Nano cap new millennium growth fund l p | 27.50K | 0.10% | $111.10K |
| Nan fung group | 29.25K | 0.10% | $118.17K |
| Pivotal bioventure partners investment advisor | 42.58K | 0.06% | $172.03K |
| Pfizer | 31.30K | 0.06% | $137.12K |
| Samsara biocapital | 48.83K | 0.03% | $259.78K |
| Vivo capital | 72.41K | 0.02% | $292.55K |
| Sofinnova investments | 137.72K | 0.02% | $556.39K |
| Lynx1 capital management lp | 30.80K | 0.02% | $124.43K |
| Board of trustees of the leland stanford junior university | 35.98K | 0.02% | $145.35K |
| Tang capital management | 66.88K | 0.01% | $355.80K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Lynx1 capital management lp | 30.80K | 0.02% | 30.80K |
| Renaissance | 77.22K | 0.00% | 22.20K |
| Blackrock | 267.07K | - | 12.11K |
| Susquehanna group, llp | 11.66K | - | 11.66K |
| Citadel advisors | 10.11K | - | 10.11K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Orbimed advisors | - | - | -1.54M |
| Acuitas investments | - | - | -630.51K |
| Adage capital partners gp | - | - | -500.00K |
| Newtyn management | - | - | -468.91K |
| Marquette asset management | - | - | -113.80K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Lynx1 capital management lp | 30.80K | 0.02% | 30.80K | $124.43K |
| Citadel advisors | 10.11K | - | 10.11K | $40.84K |
| Vanguard fiduciary trust | 3.10K | - | 3.10K | $12.50K |
| Vanguard global advisers | 24.00 | - | 24.00 | $97.00 |
Sold Out
| Holder | Change |
|---|---|
| Bnp paribas arbitrage, snc | -1.00 |
| Qube research | -2.00 |
| Salem investment counselors | -2.00 |
| Fmr | -121.00 |
| Wells fargo & company/mn | -211.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 9 | -57.14% | 147,058 | -75.59% | 7 | 0.80% | 5 | -28.57% | - | -100.00% |
| Dec 31, 2025 | 17 | -29.17% | 550,535 | -31.53% | 28 | 1.63% | 6 | -14.29% | 2 | -75.00% |
| Sep 30, 2025 | 24 | 4.35% | 804,036 | -9.28% | 41 | 784.60% | 7 | 250.00% | 8 | -61.90% |
| Jun 30, 2025 | 24 | -14.29% | 889,879 | -95.14% | 2 | 40.64% | 2 | -80.00% | 22 | 340.00% |
| Mar 31, 2025 | 28 | -24.32% | 18,325,858 | -1.84% | 47 | 2.01% | 10 | -41.18% | 5 | - |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 47.18K | 2.46% | -1.03K |
| Vanguard US Total Market Shares ETF | 861.87K | 2.25% | -1.00 |
| Fidelity Extended Market Index | 17.12K | 0.89% | 8.49K |
| Vanguard Institutional Extnd Mkt Idx Tr | 7.06K | 0.37% | - |
| PGIM US Micro Cap Quant Equity | 5.78K | 0.30% | - |
| Fidelity Total Market Index | 5.35K | 0.28% | - |
| NT Ext Equity Mkt Index Fund - Lending | 5.01K | 0.26% | - |
| NT Ext Equity Mkt Idx Fd - L | 5.01K | 0.26% | - |
| Fidelity Enhanced Small Cap ETF | 90.25K | 0.24% | 1.69K |
| Spartan Extended Market Index Pool F | 3.19K | 0.17% | 38.00 |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Dec 05, 2025 | Quinn William P. | President, CEO and CFO | Buy | $575.88 |
| Dec 05, 2025 | Nemec Sarah | Senior VP, Finance and PAO | Buy | $575.88 |
| Jun 06, 2025 | Nemec Sarah | Senior VP, Finance and PAO | Buy | $686.50 |
| Jun 06, 2025 | Quinn William P. | President, CEO and CFO | Buy | $686.50 |
| Dec 16, 2024 | Nemec Sarah | Senior VP, Finance and PAO | Buy | $1.24K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | - | - |
| 2025 Q2 | 2 | - |
| 2024 Q4 | 2 | - |
| 2024 Q3 | - | - |
| 2024 Q2 | - | - |
BOLT Ownership FAQ
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