As of September 29, 2026, the three largest insider holders of ENSC are Lynn Kirkpatrick (Chief Executive Officer, 19.09K shares), Bob G Gower (Director, 5.09K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Lynn Kirkpatrick | Chief Executive Officer | 19,093 | 0 | 19,093 | 78.9% | 27 May, 2022 |
| 2 | Bob G Gower | Director | 5,094 | 0 | 5,094 | 21.1% | 06 Mar, 2023 |
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 |
|---|---|---|---|---|---|---|---|---|
| 02 Mar, 2023 | Bob G Gower | Director | Acquired P | 90,287 | $117.20 | $10.58Mn | 5,094 | Direct |
| 28 Feb, 2023 | Bob G Gower | Director | Acquired P | 109,300 | $117.20 | $12.81Mn | 3,593 | Direct |
| 01 Mar, 2023 | Bob G Gower | Director | Acquired P | 270,000 | $114.65 | $30.96Mn | 4,718 | Direct |
| 09 Dec, 2022 | Bob G Gower | Director | Acquired P | 357,143 | $336.01 | $120.00Mn | 3,138 | Direct |
| 09 Dec, 2022 | Bob G Gower | Director | Acquired A | 714,286 | — | — | 2,985 | Direct |
| 23 Jun, 2022 | Lee M. Rauch | Director | Acquired A | 15,000 | — | — | 1,750 | Direct |
| 23 Jun, 2022 | Andrew Benton | Director | Acquired A | 15,000 | — | — | 5,043 | Direct |
| 23 Jun, 2022 | Steven Robert Martin | Director | Acquired A | 15,000 | — | — | 5,043 | Direct |
| 23 Jun, 2022 | Adam Levin | Director | Acquired A | 15,000 | — | — | 1,750 | Direct |
| 23 Jun, 2022 | Curtis Rosebraugh | Director | Acquired A | 20,000 | — | — | 1,750 | Direct |
| 23 Jun, 2022 | Bob G Gower | Director, TenPercentOwner | Acquired A | 15,000 | — | — | 2,079 | Direct |
| 23 Jun, 2022 | William H Chang | Director, TenPercentOwner | Acquired A | 15,000 | — | — | 1,750 | Direct |
| 25 May, 2022 | Lynn Kirkpatrick | Chief Executive Officer | Acquired P | 70,000 | $9.74 | $681.66K | 17,743 | Direct |
| 26 May, 2022 | Lynn Kirkpatrick | Chief Executive Officer | Acquired P | 27,000 | $10.53 | $284.31K | 19,093 | Direct |
| 17 Feb, 2022 | Lynn Kirkpatrick | Chief Executive Officer | Acquired A | 200,000 | — | — | 125,847 | Direct |
| 17 Feb, 2022 | Lynn Kirkpatrick | Chief Executive Officer | Acquired A | 200,000 | — | — | 10,000 | Direct |
| 17 Feb, 2022 | Kevin Geoffrey Birkett | Chief Commercial Officer | Acquired A | 50,000 | — | — | 2,500 | Direct |
| 17 Feb, 2022 | David Carl Humphrey | Chief Financial Officer | Acquired A | 80,000 | — | — | 4,000 | Direct |
| 04 Feb, 2022 | Adam Levin | Director | Acquired A | 20,000 | — | — | 1,000 | Direct |
| 04 Feb, 2022 | William H Chang | Director, TenPercentOwner | Acquired A | 20,000 | — | — | 1,000 | Direct |