Over the 90-day window ending February 07, 2026, Enanta Pharmaceuticals's three dominant insider ownership positions are held by President And Ceo Jay R. Luly (858.03K shares), Chief Scientific Officer Yat Sun Or (371.39K shares), Chief Fin. & Admin Officer Paul J Mellett (95.88K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Jay R. Luly | President And Ceo | 858,026 | 05 Dec, 2025 |
| Yat Sun Or | Chief Scientific Officer | 371,392 | 05 Dec, 2025 |
| Paul J Mellett | Chief Fin. & Admin Officer | 95,884 | 14 Feb, 2025 |
| Nathaniel S. Gardiner | Chief Legal Officer | 75,688 | 27 Feb, 2024 |
| Brendan Luu | Chief Business Officer | 38,329 | 05 Dec, 2025 |
| Nathalie Adda | Sr. Vp & Chief Medical Officer | 34,982 | 05 Apr, 2022 |
| Tara Lynn Kieffer | Chief Product Strategy Officer | 30,620 | 05 Dec, 2025 |
| Scott T. Rottinghaus | Chief Medical Officer | 21,792 | 05 Dec, 2025 |
| Harry R. Iii Trout | Nan | 16,348 | 05 Dec, 2025 |
| Kathleen S. Capps | Nan | 8,377 | 05 Dec, 2025 |
| Terry Vance | 5,800 | 15 Dec, 2023 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 05 Dec, 2025 | Jay R. Luly | Common Stock | D | 4,743 | $14.23 | 858,026 | D | S |
| 05 Dec, 2025 | Yat Sun Or | Common Stock | D | 2,390 | $14.23 | 371,392 | D | S |
| 05 Dec, 2025 | Tara Lynn Kieffer | Common Stock | D | 2,106 | $14.23 | 30,620 | D | S |
| 05 Dec, 2025 | Brendan Luu | Common Stock | D | 1,394 | $14.23 | 38,329 | D | S |
| 05 Dec, 2025 | Scott T. Rottinghaus | Common Stock | D | 798 | $14.23 | 21,792 | D | S |
| 05 Dec, 2025 | Harry R. Iii Trout | Common Stock | D | 542 | $14.23 | 16,348 | D | S |
| 05 Dec, 2025 | Kathleen S. Capps | Common Stock | D | 323 | $14.23 | 8,377 | D | S |
| 02 Dec, 2025 | Harry R. Iii Trout | Common Stock | D | 380 | $13.96 | 16,890 | D | S |
| 02 Dec, 2025 | Kathleen S. Capps | Common Stock | D | 207 | $13.96 | 8,700 | D | S |
| 01 Dec, 2025 | Jay R. Luly | Common Stock | D | 1,885 | $14.12 | 862,769 | D | F |
| 01 Dec, 2025 | Yat Sun Or | Common Stock | D | 753 | $14.12 | 373,782 | D | F |
| 01 Dec, 2025 | Tara Lynn Kieffer | Common Stock | D | 753 | $14.12 | 32,726 | D | F |
| 01 Dec, 2025 | Brendan Luu | Common Stock | D | 498 | $14.12 | 39,723 | D | F |
| 01 Dec, 2025 | Harry R. Iii Trout | Common Stock | D | 105 | $14.12 | 17,270 | D | F |
| 01 Dec, 2025 | Kathleen S. Capps | Common Stock | D | 85 | $14.12 | 8,907 | D | F |
| 25 Nov, 2025 | Harry R. Iii Trout | Common Stock | A | 6,463 | $0.00 | 17,375 | D | A |
| 25 Nov, 2025 | Kathleen S. Capps | Common Stock | A | 3,163 | $0.00 | 8,992 | D | A |
| 08 Aug, 2025 | Scott T. Rottinghaus | Common Stock | D | 2,217 | $6.99 | 22,590 | D | F |
| 12 Feb, 2025 | Paul J Mellett | Common Stock | D | 3,326 | $5.59 | 95,884 | D | F |
| 12 Feb, 2025 | Paul J Mellett | Common Stock | A | 7,500 | $0.00 | 99,210 | D | A |