As of the latest Form 4 filed May 27, 2026.
What Phathom Pharmaceuticals Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Newest filing first — the 19 most recent filings for PHAT.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-05-27 | 2026-05-22 | Parikh Asit Director | GGift | +28.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-27 | 2026-05-22 | Parikh Asit, Director | GGift | −28.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-10 | Cook Anne Marie Chief Legal Off. & Corp. Sec. | FTax | −1.53K | $12.82 | $19.7K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-10 | Cook Anne Marie, Chief Legal Off. & Corp. Sec. | AAward | +3.46K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-10 | Basta Steven L President and CEO | FTax | −6.28K | $12.82 | $80.5K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-10 | Basta Steven L, President and CEO | AAward | +12.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-23 | Parikh Asit Director | GGift | +80.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-23 | Parikh Asit, Director | GGift | −80.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-23 | 2026-01-21 | Breedlove Robert Charles Principal Accounting Officer | FTax | −776.00 | $13.61 | $10.6K | No | Form 4 ↗ |
| 2026-01-15 | 2026-01-13 | Parikh Asit Director | MExercise | +8.75K | $10.30 | $90.1K | No | Form 4 ↗ |
| 2026-01-02 | 2026-01-02 | Basta Steven L President and CEO | AAward | +251K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-02 | 2026-01-02 | Cook Anne Marie Chief Legal Off. & Corp. Sec. | AAward | +75.3K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-01-02 | 2026-01-02 | Narula Sanjeev Chief Financial & Bus. Officer | AAward | +82.7K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2025-12-23 | 2025-12-19 | Parikh Asit Director | MExercise | +8.75K | $10.30 | $90.1K | No | Form 4 ↗ |
| 2025-12-19 | 2025-12-18 | Breedlove Robert Charles Principal Accounting Officer | FTax | −230.00 | $16.28 | $3.74K | No | Form 4 ↗ |
| 2025-12-19 | 2025-12-17 | Cook Anne Marie Chief Legal Off. & Corp. Sec. | FTax | −7.70K | $15.36 | $118K | No | Form 4 ↗ |
| 2025-12-19 | 2025-12-17 | Cook Anne Marie, Chief Legal Off. & Corp. Sec. | AAward | +17.4K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2025-12-19 | 2025-12-17 | Basta Steven L President and CEO | FTax | −31.5K | $15.36 | $484K | No | Form 4 ↗ |
| 2025-12-19 | 2025-12-17 | Basta Steven L, President and CEO | AAward | +62.0K | $0.00 | $0.00 | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also PHAT’s full analysis or the market-wide insider trading feed. The tabs above jump to PHAT’s other SEC data.
Source: SEC Form 4 filings for PHAT, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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