Phathom Pharmaceuticals's top three insider shareholders as of May 30, 2026 are Pharmaceutical Co Ltd Takeda (TenPercentOwner, 3.76Mn shares), David A Socks (Director, 1.21Mn shares), Azmi Nabulsi (Chief Operating Officer, 785.70K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Heidi Fields | - | 30,000 | 0 | 05 Jun, 2025 |
| Michael F Cola | - | 39,798 | 0 | 05 Jun, 2025 |
| Frank Karbe | - | 67,500 | 0 | 05 Jun, 2025 |
| Anne Marie Cook | Chief Legal Off. Corp. Sec. | 88,660 | 0 | 12 Feb, 2026 |
| James N Topper | - | 0 | 59,403 | 23 May, 2025 |
| Molly Henderson | Cfo And Cbo | 102,763 | 0 | 31 May, 2024 |
| Theodore R Schroeder | - | 21,000 | 0 | 16 Apr, 2025 |
| David A Socks | - | 0 | 1,211,346 | 08 Oct, 2021 |
| Pharmaceutical Co Ltd Takeda | - | 3,755,583 | 0 | 25 Jan, 2024 |
| Steven L Basta | President And Ceo | 373,315 | 0 | 12 Feb, 2026 |
| Anthony J. Guzzo | Vp, Chief Accounting Officer | 8,399 | 0 | 21 Jan, 2022 |
| Terrie Curran | President And Chief Executive | 360,465 | 0 | 23 Jan, 2025 |
| Mark Stenhouse | - | 30,000 | 0 | 05 Jun, 2025 |
| Azmi Nabulsi | Chief Operating Officer | 0 | 785,700 | 16 May, 2022 |
| Asit Parikh | - | 10,500 | 120,500 | 11 Mar, 2026 |
| Sanjeev Narula | Chief Financial Bus. Officer | 226,715 | 0 | 02 Jan, 2026 |
| Robert Charles Breedlove | Principal Accounting Officer | 61,480 | 0 | 03 Mar, 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 |
|---|---|---|---|---|---|---|---|---|
| 10 Mar, 2026 | Asit Parikh | Common Stock | D | 40,000 | $0.00 | 10,500 | D | G |
| 10 Mar, 2026 | Asit Parikh | Common Stock | A | 40,000 | $0.00 | 120,500 | I | G |
| 27 Feb, 2026 | Robert Charles Breedlove | Common Stock | A | 13,000 | $0.00 | 60,068 | D | A |
| 27 Feb, 2026 | Robert Charles Breedlove | Common Stock | A | 2,790 | $0.00 | 62,858 | D | A |
| 27 Feb, 2026 | Robert Charles Breedlove | Common Stock | D | 964 | $12.56 | 61,894 | D | F |
| 27 Feb, 2026 | Robert Charles Breedlove | Common Stock | D | 414 | $12.56 | 61,480 | D | F |
| 10 Feb, 2026 | Anne Marie Cook | Common Stock | A | 3,461 | $0.00 | 90,195 | D | A |
| 10 Feb, 2026 | Steven L Basta | Common Stock | A | 12,362 | $0.00 | 379,592 | D | A |
| 10 Feb, 2026 | Steven L Basta | Common Stock | D | 6,277 | $12.82 | 373,315 | D | F |
| 10 Feb, 2026 | Anne Marie Cook | Common Stock | D | 1,535 | $12.82 | 88,660 | D | F |
| 23 Jan, 2026 | Asit Parikh | Common Stock | D | 80,500 | $0.00 | 50,500 | D | G |
| 23 Jan, 2026 | Asit Parikh | Common Stock | A | 80,500 | $0.00 | 80,500 | I | G |
| 21 Jan, 2026 | Robert Charles Breedlove | Common Stock | D | 776 | $13.61 | 47,068 | D | F |
| 13 Jan, 2026 | Asit Parikh | Common Stock | A | 8,750 | $10.30 | 131,000 | D | M |
| 13 Jan, 2026 | Asit Parikh | Common Stock (Right to Buy) | D | 8,750 | $0.00 | 0 | D | M |
| 02 Jan, 2026 | Sanjeev Narula | Common Stock | A | 82,715 | $0.00 | 226,715 | D | A |
| 02 Jan, 2026 | Anne Marie Cook | Common Stock | A | 75,345 | $0.00 | 85,012 | D | A |
| 02 Jan, 2026 | Steven L Basta | Common Stock | A | 251,034 | $0.00 | 364,820 | D | A |
| 02 Jan, 2026 | Steven L Basta | Stock Option (Right to Buy) | A | 226,156 | $0.00 | 221,156 | D | A |
| 02 Jan, 2026 | Anne Marie Cook | Stock Option (Right to Buy) | A | 67,878 | $0.00 | 67,878 | D | A |