BOLT's three largest insider shareholders as of August 04, 2026 are Capital Viii, Llc Vivo (TenPercentOwner, 4.29Mn shares), Holdings A/S Novo (TenPercentOwner, 3.70Mn shares), Capital Viii, Llc Vivo (TenPercentOwner, 1.98Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Holdings A/S Novo | - | 3,703,991 | 0 | 15 Jul, 2022 |
| Grant Yonehiro | Chief Operating Officer | 38,918 | 0 | 24 Oct, 2025 |
| Capital Viii, Llc Vivo | - | 0 | 4,287,560 | 22 Nov, 2023 |
| Edith A. Perez | Chief Medical Officer | 37,042 | 0 | 02 Feb, 2022 |
| Sarah Nemec | Senior Vp, Finance And Pao | 1,415 | 0 | 04 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 28 Jan, 2026 | Grant Yonehiro | Employee Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 28 Jan, 2026 | Grant Yonehiro | Employee Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2025 | Sarah Nemec | Common Stock | A | 125 | $4.61 | 1,415 | D | P |
| 28 Jan, 2026 | Grant Yonehiro | Employee Stock Option (Right to Buy) | A | 10,000 | $0.00 | 10,000 | D | A |
| 05 Dec, 2025 | Sarah Nemec | Common Stock | A | 125 | $4.61 | 1,415 | D | P |
| 05 Dec, 2025 | Sarah Nemec | Common Stock | A | 125 | $4.61 | 1,415 | D | P |
| 28 Jan, 2026 | Sarah Nemec | Employee Stock Option (Right to Buy) | A | 8,000 | $0.00 | 8,000 | D | A |
| 28 Jan, 2026 | Sarah Nemec | Employee Stock Option (Right to Buy) | A | 8,000 | $0.00 | 8,000 | D | A |
| 28 Jan, 2026 | Sarah Nemec | Employee Stock Option (Right to Buy) | A | 8,000 | $0.00 | 8,000 | D | A |
| 12 Dec, 2025 | Grant Yonehiro | Employee Stock Option (Right to Buy) | A | 3,214 | - | 3,214 | D | A |
| 12 Dec, 2025 | Sarah Nemec | Employee Stock Option (Right to Buy) | A | 1,236 | - | 1,236 | D | A |
| 12 Dec, 2025 | Laura Berner | Director Stock Option (Right to Buy) | A | 2,500 | - | 2,500 | D | A |
| 12 Dec, 2025 | Grant Yonehiro | Employee Stock Option (Right to Buy) | A | 3,214 | - | 3,214 | D | A |
| 12 Dec, 2025 | Brian O'Callaghan | Director Stock Option (Right to Buy) | A | 1,393 | - | 1,393 | D | A |
| 12 Dec, 2025 | Grant Yonehiro | Employee Stock Option (Right to Buy) | A | 3,214 | - | 3,214 | D | A |
| 12 Dec, 2025 | Sarah Nemec | Employee Stock Option (Right to Buy) | A | 1,236 | - | 1,236 | D | A |
| 12 Dec, 2025 | Brian O'Callaghan | Director Stock Option (Right to Buy) | A | 1,393 | - | 1,393 | D | A |
| 12 Dec, 2025 | Brian O'Callaghan | Director Stock Option (Right to Buy) | A | 1,393 | - | 1,393 | D | A |
| 12 Dec, 2025 | Sarah Nemec | Employee Stock Option (Right to Buy) | A | 1,236 | - | 1,236 | D | A |
| 12 Dec, 2025 | Grant Yonehiro | Employee Stock Option (Right to Buy) | D | 3,214 | - | 0 | D | D |