BOLT's three largest insider shareholders as of March 23, 2026 are Holdings A/S Novo (TenPercentOwner, 3.70Mn shares), Edgar Engleman (Director, 251.52K shares), Capital Viii, Llc Vivo (TenPercentOwner, 111.66K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Holdings A/S Novo | 3,703,991 | 0 | 15 Jul, 2022 | |
| Edgar Engleman | 0 | 251,522 | 01 Dec, 2023 | |
| Capital Viii, Llc Vivo | 0 | 111,662 | 22 Nov, 2023 | |
| Grant Yonehiro | Chief Operating Officer | 38,918 | 0 | 24 Oct, 2025 |
| Edith A. Perez | Chief Medical Officer | 37,042 | 0 | 02 Feb, 2022 |
| William P. Quinn | President, Ceo And Cfo | 2,313 | 0 | 04 Feb, 2026 |
| 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 |
| 05 Dec, 2025 | William P. Quinn | Common Stock | A | 125 | $4.61 | 2,313 | D | P |
| 05 Dec, 2025 | Sarah Nemec | Common Stock | A | 125 | $4.61 | 1,415 | D | P |
| 28 Jan, 2026 | William P. Quinn | Employee Stock Option (Right to Buy) | A | 20,000 | $0.00 | 20,000 | 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 | Brian O'Callaghan | Director Stock Option (Right to Buy) | A | 1,393 | - | 1,393 | D | A |
| 12 Dec, 2025 | Jakob Dupont | Director Stock Option (Right to Buy) | A | 2,500 | - | 2,500 | 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 | William P. Quinn | Employee Stock Option (Right to Buy) | A | 7,614 | - | 7,614 | D | A |
| 12 Dec, 2025 | Nicole Onetto | 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 | Kathleen Laporte | Director Stock Option (Right to Buy) | A | 1,392 | - | 1,392 | D | A |
| 12 Dec, 2025 | Jakob Dupont | Director Stock Option (Right to Buy) | D | 2,500 | - | 0 | D | D |
| 12 Dec, 2025 | William P. Quinn | Employee Stock Option (Right to Buy) | D | 7,614 | - | 0 | D | D |
| 12 Dec, 2025 | Brian O'Callaghan | Director Stock Option (Right to Buy) | D | 1,393 | - | 0 | D | D |
| 12 Dec, 2025 | Laura Berner | Director Stock Option (Right to Buy) | D | 2,500 | - | 0 | D | D |
| 12 Dec, 2025 | Grant Yonehiro | Employee Stock Option (Right to Buy) | D | 3,214 | - | 0 | D | D |
| 12 Dec, 2025 | Sarah Nemec | Employee Stock Option (Right to Buy) | D | 1,236 | - | 0 | D | D |
| 12 Dec, 2025 | Kathleen Laporte | Director Stock Option (Right to Buy) | D | 1,392 | - | 0 | D | D |