EDIT's three largest insider shareholders as of August 29, 2026 are Gilmore Neil O'Neill (Ceo, 248.31K shares), Baisong Mei (Evp, Chief Medical Officer, 133.35K shares), Baisong Mei (Evp, Chief Medical Officer, 133.35K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Gilmore Neil O'Neill | Ceo | 248,313 | 0 | 248,313 | 34.1% | 05 Jun, 2026 |
| 2 | Baisong Mei | Evp, Chief Medical Officer | 133,354 | 0 | 133,354 | 18.3% | 05 Dec, 2024 |
| 3 | Michelle Robertson | Evp, Chief Financial Officer | 106,610 | 0 | 106,610 | 14.6% | 15 May, 2023 |
| 4 | Bruce Eaton | Evp, Cbo And Cto | 74,791 | 0 | 74,791 | 10.3% | 07 Dec, 2023 |
| 5 | Mark S Shearman | Evp, Chief Scientific Officer | 65,559 | 0 | 65,559 | 9.0% | 15 Feb, 2023 |
| 6 | Linda Burkly | Evp, Chief Scientific Officer | 62,369 | 0 | 62,369 | 8.6% | 29 Jul, 2026 |
| 7 | Lisa Anne Michaels | Evp/Chief Medical Officer | 22,675 | 0 | 22,675 | 3.1% | 23 Dec, 2021 |
| 8 | Amy Parison | Svp, Chief Financial Officer | 14,292 | 0 | 14,292 | 2.0% | 05 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 06 Aug, 2026 | Patrick Thomas Ii Ellinor | Director | Acquired A | 103,400 | $0.00 | $0 | 103,400 | Direct |
| 03 Aug, 2026 | Amy Parison | Svp, Chief Financial Officer | Disposed S | 678 | $2.58 | $1.75K | 14,292 | Direct |
| 28 Jul, 2026 | Linda Burkly | Evp, Chief Scientific Officer | Disposed S | 4,928 | $2.67 | $13.16K | 62,369 | Direct |
| 17 Jun, 2026 | Elliott M. Levy | Director | Acquired A | 51,700 | $0.00 | $0 | 51,700 | Direct |
| 17 Jun, 2026 | David Scadden | Director | Acquired A | 51,700 | $0.00 | $0 | 51,700 | Direct |
| 17 Jun, 2026 | Andrew Hirsch | Director | Acquired A | 51,700 | $0.00 | $0 | 51,700 | Direct |
| 17 Jun, 2026 | Bernadette Connaughton | Director | Acquired A | 51,700 | $0.00 | $0 | 51,700 | Direct |
| 03 Jun, 2026 | Linda Burkly | Evp, Chief Scientific Officer | Disposed S | 731 | $2.70 | $1.97K | 67,297 | Direct |
| 03 Jun, 2026 | Gilmore Neil O'Neill | Ceo | Disposed S | 15,380 | $2.70 | $41.54K | 248,313 | Direct |
| 12 Mar, 2026 | Linda Burkly | Evp, Chief Scientific Officer | Acquired A | 292,856 | $0.00 | $0 | 292,856 | Direct |
| 12 Mar, 2026 | Gilmore Neil O'Neill | Ceo | Acquired A | 1,015,200 | $0.00 | $0 | 1,015,200 | Direct |
| 03 Mar, 2026 | Gilmore Neil O'Neill | Ceo | Disposed S | 5,394 | $2.02 | $10.89K | 263,693 | Direct |
| 03 Mar, 2026 | Linda Burkly | Evp, Chief Scientific Officer | Disposed S | 749 | $2.02 | $1.51K | 68,028 | Direct |
| 03 Dec, 2025 | Gilmore Neil O'Neill | Ceo | Disposed S | 5,603 | $2.15 | $12.06K | 269,087 | Direct |
| 03 Dec, 2025 | Linda Burkly | Evp, Chief Scientific Officer | Disposed S | 713 | $2.15 | $1.54K | 68,777 | Direct |
| 03 Sep, 2025 | Linda Burkly | Evp, Chief Scientific Officer | Disposed S | 710 | $2.60 | $1.84K | 69,490 | Direct |
| 03 Sep, 2025 | Gilmore Neil O'Neill | Ceo | Disposed S | 5,592 | $2.60 | $14.52K | 274,690 | Direct |
| 31 Jul, 2025 | Linda Burkly | Evp, Chief Scientific Officer | Disposed S | 5,121 | $2.49 | $12.76K | 64,398 | Direct |
| 06 Jun, 2025 | Andrew Hirsch | Director | Acquired A | 37,500 | $0.00 | $0 | 37,500 | Direct |
| 06 Jun, 2025 | David Scadden | Director | Acquired A | 37,500 | $0.00 | $0 | 37,500 | Direct |