PHAT · Insider Trading
Phathom Pharmaceuticals, Inc. Common Stock
Every open-market purchase and sale reported by PHAT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-08 | Sanjeev Narula | Chief Financial & Bus. Officer | F | −13,485 | −$91.43K |
| 2026-09-08 | Robert Charles Breedlove | Principal Accounting Officer | F | −460 | −$4.16K |
| 2026-07-16 | Robert Charles Breedlove | Principal Accounting Officer | F | −1,555 | −$17.16K |
| 2026-05-27 | Asit Parikh | Director | G | — | — |
| 2026-05-21 | Michael F Cola | Director | A | +24,122 | — |
| 2026-05-21 | Frank Karbe | Director | A | +24,122 | — |
| 2026-05-21 | Mark Stenhouse | Director | A | +24,122 | — |
| 2026-05-21 | Theodore R Schroeder | Director | A | +24,122 | — |
| 2026-05-21 | James N Topper | Director | A | +24,122 | — |
| 2026-05-21 | Asit Parikh | Director | MIXED | +41,622 | +$86.62K |
| 2026-05-21 | Heidi Fields | Director | A | +24,122 | — |
| 2026-03-11 | Asit Parikh | Director | G | — | — |
| 2026-03-03 | Robert Charles Breedlove | Principal Accounting Officer | MIXED | +14,412 | −$17.31K |
| 2026-02-12 | Steven L Basta | President and CEO | MIXED | +6,085 | −$80.47K |
| 2026-02-12 | Anne Marie Cook | Chief Legal Off. & Corp. Sec. | MIXED | +1,926 | −$19.68K |
| 2026-01-27 | Asit Parikh | Director | G | — | — |
| 2026-01-23 | Robert Charles Breedlove | Principal Accounting Officer | F | −776 | −$10.56K |
| 2026-01-15 | Asit Parikh | Director | M | +8,750 | +$90.12K |
| 2026-01-02 | Sanjeev Narula | Chief Financial & Bus. Officer | A | +82,715 | — |
| 2026-01-02 | Steven L Basta | President and CEO | A | +251,034 | — |
| 2026-01-02 | Anne Marie Cook | Chief Legal Off. & Corp. Sec. | A | +75,345 | — |
| 2025-12-23 | Asit Parikh | Director | M | +8,750 | +$90.12K |
| 2025-12-19 | Anne Marie Cook | Chief Legal Off. & Corp. Sec. | MIXED | +9,667 | −$118.32K |
| 2025-12-19 | Steven L Basta | President and CEO | MIXED | +30,536 | −$483.87K |
| 2025-12-19 | Robert Charles Breedlove | Principal Accounting Officer | F | −230 | −$3.74K |
| 2025-12-02 | Steven L Basta | President and CEO | MIXED | +41,625 | −$755.62K |
| 2025-11-05 | Robert Charles Breedlove | Principal Accounting Officer | Sell | −524 | −$7.08K |
| 2025-10-08 | Sanjeev Narula | Chief Financial & Bus. Officer | A | +144,000 | — |
| 2025-10-07 | Sanjeev Narula | Chief Financial & Bus. Officer | A | +200,000 deriv. | — |
| 2025-09-26 | Steven L Basta | President and CEO | MIXED | +41,625 | −$564.05K |
| 2025-09-09 | Robert Charles Breedlove | Principal Accounting Officer | Sell | −461 | −$5.57K |
| 2025-07-18 | Robert Charles Breedlove | Principal Accounting Officer | Sell | −1,692 | −$14.15K |
| 2025-06-24 | Anne Marie Cook | Chief Legal Off. & Corp. Sec. | A | +210,000 deriv. | — |
| 2025-06-05 | Asit Parikh | Director | A | +10,500 | — |
| 2025-06-05 | Michael F Cola | Director | A | +10,500 | — |
| 2025-06-05 | Heidi Fields | Director | A | +10,500 | — |
| 2025-06-05 | James N Topper | Director | A | +10,500 | — |
| 2025-06-05 | Frank Karbe | Director | A | +10,500 | — |
| 2025-06-05 | Mark Stenhouse | Director | A | +10,500 | — |
| 2025-05-23 | James N Topper | Director | Buy | +3,780 | +$14.61K |
| 2025-05-21 | Robert Charles Breedlove | Principal Accounting Officer | A | +33,000 deriv. | — |
| 2025-05-15 | James N Topper | Director | Buy | +7,420 | +$24.46K |
| 2025-05-13 | James N Topper | Director | Buy | +48,203 | +$152.92K |
| 2025-05-08 | Asit Parikh | Director | Buy | +10,000 | +$24.98K |
| 2025-04-16 | Theodore R Schroeder | Director | A | +21,000 | — |
| 2025-04-08 | Molly Henderson | CFO and CBO | Sell | −3,678 | −$16.74K |
| 2025-04-03 | Steven L Basta | President and CEO | A | +1,445,000 deriv. | — |
| 2025-03-21 | Asit Parikh | Director | M | +7,500 | +$87.90K |
| 2025-03-17 | Asit Parikh | Director | Buy | +10,000 | +$44.20K |
| 2025-03-03 | Terrie Curran | President and Chief Executive | A | +342,500 deriv. | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Azmi Nabulsi | Chief Operating Officer | 1,098,290 | $6.52M |
| Steven L Basta | President and CEO | 373,315 | $2.22M |
| Terrie Curran | President and Chief Executive | 364,305 | $2.16M |
| Sanjeev Narula | Chief Financial & Bus. Officer | 215,841 | $1.28M |
| Asit Parikh | Director | 172,622 | $1.03M |
| James N Topper | Director | 126,121 | $749.16K |
| Molly Henderson | CFO and CBO | 91,779 | $545.17K |
| Frank Karbe | Director | 91,622 | $544.23K |
| Anne Marie Cook | Chief Legal Off. & Corp. Sec. | 88,660 | $526.64K |
| Robert Charles Breedlove | Principal Accounting Officer | 67,656 | $401.88K |
| Michael F Cola | Director | 63,920 | $379.68K |
| Heidi Fields | Director | 54,122 | $321.48K |
| Mark Stenhouse | Director | 54,122 | $321.48K |
| Theodore R Schroeder | Director | 45,122 | $268.02K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the PHAT quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.