12 insiders reported 59 Form 4 transactions for Phathom Pharmaceuticals, Inc. (PHAT) over the past 18 months (most recent 2026-09-08). Recent activity: Breedlove Robert Charles (Principal Accounting Officer) Sell 460 shares, Breedlove Robert Charles (Principal Accounting Officer) Sell 1,555 shares, Parikh Asit (Director) Sell 28,000 shares, Parikh Asit (Director) Buy 28,000 shares, FIELDS HEIDI (Director) Buy 24,122 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-08 | Breedlove Robert Charles | Principal Accounting Officer | Sell | 460 | $4,163 |
| 2026-07-16 | Breedlove Robert Charles | Principal Accounting Officer | Sell | 1,555 | $17,159 |
| 2026-05-27 | Parikh Asit | Director | Sell | 28,000 | $0 |
| 2026-05-27 | Parikh Asit | Director | Buy | 28,000 | $0 |
| 2026-05-21 | FIELDS HEIDI | Director | Buy | 24,122 | $0 |
| 2026-05-21 | Parikh Asit | Director | Buy | 17,500 | $86,625 |
| 2026-05-21 | Topper James N | Director | Buy | 24,122 | $0 |
| 2026-05-21 | COLA MICHAEL F | Director | Buy | 24,122 | $0 |
| 2026-05-21 | Parikh Asit | Director | Buy | 24,122 | $0 |
| 2026-05-21 | KARBE FRANK | Director | Buy | 24,122 | $0 |
| 2026-05-21 | Schroeder Theodore R | Director | Buy | 24,122 | $0 |
| 2026-05-21 | Stenhouse Mark | Director | Buy | 24,122 | $0 |
| 2026-03-11 | Parikh Asit | Director | Buy | 40,000 | $0 |
| 2026-03-11 | Parikh Asit | Director | Sell | 40,000 | $0 |
| 2026-03-03 | Breedlove Robert Charles | Principal Accounting Officer | Buy | 13,000 | $0 |
| 2026-03-03 | Breedlove Robert Charles | Principal Accounting Officer | Buy | 2,790 | $0 |
| 2026-03-03 | Breedlove Robert Charles | Principal Accounting Officer | Sell | 964 | $12,108 |
| 2026-03-03 | Breedlove Robert Charles | Principal Accounting Officer | Sell | 414 | $5,200 |
| 2026-02-12 | Cook Anne Marie | Chief Legal Off. & Corp. Sec. | Buy | 3,461 | $0 |
| 2026-02-12 | Cook Anne Marie | Chief Legal Off. & Corp. Sec. | Sell | 1,535 | $19,679 |
| 2026-02-12 | Basta Steven L | President and CEO | Buy | 12,362 | $0 |
| 2026-02-12 | Basta Steven L | President and CEO | Sell | 6,277 | $80,471 |
| 2026-01-27 | Parikh Asit | Director | Sell | 80,500 | $0 |
| 2026-01-27 | Parikh Asit | Director | Buy | 80,500 | $0 |
| 2026-01-23 | Breedlove Robert Charles | Principal Accounting Officer | Sell | 776 | $10,561 |
Source: SEC Form 4 filings · as of 2026-09-08