Data spanning the past 90 days through February 19, 2026 reveals that Editas Medicine's three principal insider shareholders consist of Ceo Gilmore Neil O'Neill (269.09K shares), Evp And Chief Medical Officer Baisong Mei (133.35K shares), Evp And Chief Financial Officer Erick Lucera (112.72K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Gilmore Neil O'Neill | Ceo | 269,087 | 04 Dec, 2025 |
| Baisong Mei | Evp And Chief Medical Officer | 133,354 | 05 Dec, 2024 |
| Erick Lucera | Evp And Chief Financial Officer | 112,720 | 05 Mar, 2025 |
| Michelle Robertson | Evp And Chief Financial Officer | 106,610 | 15 May, 2023 |
| James C Mullen | Ceo | 75,898 | 04 Jan, 2022 |
| Bruce Eaton | Evp And Cbo And Cto | 74,791 | 07 Dec, 2023 |
| Linda Burkly | Evp And Chief Scientific Officer | 68,777 | 04 Dec, 2025 |
| Jessica Hopfield | 67,700 | 14 May, 2024 | |
| Mark S Shearman | Evp And Chief Scientific Officer | 65,559 | 15 Feb, 2023 |
| Lisa Anne Michaels | Evp/Chief Medical Officer | 22,675 | 23 Dec, 2021 |
| Amy Parison | Svp And Chief Financial Officer | 15,908 | 04 Dec, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 03 Dec, 2025 | Gilmore Neil O'Neill | Common Stock | D | 5,603 | $2.15 | 269,087 | D | S |
| 03 Dec, 2025 | Linda Burkly | Common Stock | D | 713 | $2.15 | 68,777 | D | S |
| 03 Dec, 2025 | Amy Parison | Common Stock | D | 461 | $2.15 | 15,908 | D | S |
| 03 Sep, 2025 | Gilmore Neil O'Neill | Common Stock | D | 5,592 | $2.60 | 274,690 | D | S |
| 03 Sep, 2025 | Linda Burkly | Common Stock | D | 710 | $2.60 | 69,490 | D | S |
| 03 Sep, 2025 | Amy Parison | Common Stock | D | 458 | $2.60 | 16,369 | D | S |
| 07 Aug, 2025 | Amy Parison | Common Stock | D | 679 | $2.58 | 16,827 | D | S |
| 31 Jul, 2025 | Linda Burkly | Common Stock | D | 5,121 | $2.49 | 64,398 | D | S |
| 03 Jun, 2025 | Gilmore Neil O'Neill | Common Stock | D | 15,192 | $1.72 | 280,282 | D | S |
| 03 Jun, 2025 | Linda Burkly | Common Stock | D | 726 | $1.72 | 69,519 | D | S |
| 03 Jun, 2025 | Amy Parison | Common Stock | D | 446 | $1.72 | 17,506 | D | S |
| 04 Mar, 2025 | Erick Lucera | Common Stock | D | 4,109 | $1.71 | 112,720 | D | S |
| 04 Mar, 2025 | Erick Lucera | - | - | 112,720 | D | |||
| 04 Mar, 2025 | Gilmore Neil O'Neill | Common Stock | D | 16,632 | $1.71 | 295,474 | D | S |
| 04 Mar, 2025 | Linda Burkly | Common Stock | D | 2,891 | $1.71 | 70,245 | D | S |
| 03 Dec, 2024 | Gilmore Neil O'Neill | Common Stock | D | 1,618 | $2.08 | 312,106 | D | S |
| 03 Dec, 2024 | Baisong Mei | - | - | 133,354 | D | |||
| 03 Dec, 2024 | Baisong Mei | Common Stock | D | 541 | $2.08 | 133,354 | D | S |
| 04 Sep, 2024 | Gilmore Neil O'Neill | Common Stock | D | 1,555 | $3.42 | 313,724 | D | S |
| 04 Sep, 2024 | Baisong Mei | Common Stock | D | 518 | $3.42 | 133,895 | D | S |