Company profile
Phathom Pharmaceuticals, Inc. Insider Trading
PHATEvery SEC Form 4 insider trading filing for Phathom Pharmaceuticals, Inc. (PHAT) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Pharmaceutical Preparations
- CIK
- 0001783183
- Filings
- 100
- Insiders
- 16
- Last filing
- 2026-09-03
Activity summary
No discretionary insider buying or selling in the last 30 days. The 1 transaction filed was grants, option exercises or other non-open-market activity.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Phathom Pharmaceuticals, Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $30.2M.
90 day insight
Over the last 90 days, Phathom Pharmaceuticals, Inc. insiders filed 2 Form 4 transactions, none of which were open-market purchases or sales.
- Most active insider: Robert Charles Breedlove with 2 transactions totaling $21K.
Activity skews bullish: buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
Showing 5 of 50 transactions. The most significant are picked first.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 3, 2026 | Robert Charles Breedlove | PHAT | Tax Withholding | 460 | $9.05 | $4K |
| Jul 14, 2026 | Robert Charles Breedlove | PHAT | Tax Withholding | 1,555 | $11.04 | $17K |
| May 22, 2026 | Asit Parikh | PHAT | Gift | 28,000 | — | — |
| Nov 3, 2025 | Robert Charles Breedlove | PHAT | Sale | 524 | $13.51 | $7K |
| Sep 5, 2025 | Robert Charles Breedlove | PHAT | Sale | 461 | $12.09 | $6K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Institutional Ownership
Top 13F-HR holders of Phathom Pharmaceuticals, Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →