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Insider trades
Open-market buys and sells by officers, directors and 10% owners, from SEC Form 4. Usually filed within two business days.
About this data
- What it is
- When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
- Who files it
- The insider, usually through the company, within two business days of the trade.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Open-market trades per day, last 30 days
Purchases Sales
By trade date. Insiders have two business days to file, so the most recent days fill in later.
Latest open-market insider trades
Showing: ticker PTGX
| Traded | Insider | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 7,278 | $144.10 | $1.0M Sale | Form 4 ↗ |
| Sep 9, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 63,548 | $146.18 | $9.3M Sale | Form 4 ↗ |
| Sep 8, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 54,174 | $145.87 | $7.9M Sale | Form 4 ↗ |
| Aug 11, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 34,239 | $148.52 | $5.1M Sale | Form 4 ↗ |
| Aug 10, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 65,761 | $149.11 | $9.8M Sale | Form 4 ↗ |
| Jun 23, 2026 | William D. Waddill Director | PTGX Protagonist Therapeutics, Inc. | Sale | 9,000 | $117.94 | $1.1M Sale | Form 4 ↗ |
| Jun 10, 2026 | William D. Waddill Director | PTGX Protagonist Therapeutics, Inc. | Sale | 9,000 | $107.68 | $969.1K Sale | Form 4 ↗ |
| May 29, 2026 | William D. Waddill Director | PTGX Protagonist Therapeutics, Inc. | Sale | 9,000 | $99.64 | $896.8K Sale | Form 4 ↗ |
| May 12, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 75,000 | $100.12 | $7.5M Sale | Form 4/A ↗ |
| May 8, 2026 | Bryan Giraudo Director | PTGX Protagonist Therapeutics, Inc. | Sale | 5,130 | $100.00 | $513.0K Sale | Form 4 ↗ |
| May 8, 2026 | Bryan Giraudo Director | PTGX Protagonist Therapeutics, Inc. | Sale | 6,000 | $100.00 | $600.0K Sale | Form 4 ↗ |
| May 7, 2026 | Bryan Giraudo Director | PTGX Protagonist Therapeutics, Inc. | Sale | 12,000 | $100.07 | $1.2M Sale | Form 4 ↗ |
| May 7, 2026 | Bryan Giraudo Director | PTGX Protagonist Therapeutics, Inc. | Sale | 36,000 | $100.14 | $3.6M Sale | Form 4 ↗ |
| Apr 20, 2026 | Ali Asif Chief Financial Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 1,750 | $105.47 | $184.6K Sale | Form 4 ↗ |
| Mar 26, 2026 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 15,000 | $104.79 | $1.6M Sale | Form 4 ↗ |
| Mar 26, 2026 | Harold E. Selick Director | PTGX Protagonist Therapeutics, Inc. | Sale | 24,000 | $105.00 | $2.5M Sale | Form 4 ↗ |
| Mar 26, 2026 | Ali Asif Chief Financial Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 24,765 | $104.24 | $2.6M Sale | Form 4 ↗ |
| Mar 25, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 54,641 | $101.00 | $5.5M Sale | Form 4 ↗ |
| Mar 24, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 59 | $101.00 | $5,959 Sale | Form 4 ↗ |
| Feb 17, 2026 | Lewis T. Williams Director | PTGX Protagonist Therapeutics, Inc. | Sale | 18,000 | $82.42 | $1.5M Sale | Form 4 ↗ |
| Feb 6, 2026 | William D. Waddill Director | PTGX Protagonist Therapeutics, Inc. | Sale | 20,000 | $83.68 | $1.7M Sale | Form 4 ↗ |
| Jan 27, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 4,068 | $83.19 | $338.4K Sale | Form 4 ↗ |
| Jan 27, 2026 | Ali Asif Chief Financial Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 18,203 | $83.14 | $1.5M Sale | Form 4 ↗ |
| Jan 27, 2026 | Ali Asif Chief Financial Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 28,000 | $83.13 | $2.3M Sale | Form 4 ↗ |
| Jan 27, 2026 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 5,000 | $82.00 | $410.0K Sale | Form 4 ↗ |
| Jan 26, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 14,205 | $84.05 | $1.2M Sale | Form 4 ↗ |
| Jan 26, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 10,685 | $84.00 | $897.5K Sale | Form 4 ↗ |
| Jan 26, 2026 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 5,000 | $82.28 | $411.4K Sale | Form 4 ↗ |
| Jan 23, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 19,315 | $84.59 | $1.6M Sale | Form 4 ↗ |
| Jan 23, 2026 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 13,151 | $82.42 | $1.1M Sale | Form 4 ↗ |
| Jan 20, 2026 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 9,514 | $82.48 | $784.7K Sale | Form 4 ↗ |
| Jan 20, 2026 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 34,438 | $82.48 | $2.8M Sale | Form 4 ↗ |
| Jan 20, 2026 | Ali Asif Chief Financial Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 8,588 | $82.48 | $708.3K Sale | Form 4 ↗ |
| Nov 17, 2025 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 2,712 | $84.77 | $229.9K Sale | Form 4 ↗ |
| Oct 10, 2025 | William D. Waddill Director | PTGX Protagonist Therapeutics, Inc. | Sale | 8,000 | $87.81 | $702.5K Sale | Form 4 ↗ |
| Oct 10, 2025 | William D. Waddill Director | PTGX Protagonist Therapeutics, Inc. | Sale | 4,000 | $69.25 | $277.0K Sale | Form 4 ↗ |
| Sep 22, 2025 | William D. Waddill Director | PTGX Protagonist Therapeutics, Inc. | Sale | 4,000 | $64.25 | $257.0K Sale | Form 4 ↗ |
| Aug 27, 2025 | William D. Waddill Director | PTGX Protagonist Therapeutics, Inc. | Sale | 4,000 | $59.25 | $237.0K Sale | Form 4 ↗ |
| Jul 25, 2025 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 10,415 | $54.78 | $570.5K Sale | Form 4 ↗ |
| Jul 23, 2025 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 17,520 | $54.79 | $959.9K Sale | Form 4 ↗ |
| Jul 22, 2025 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 22,065 | $55.05 | $1.2M Sale | Form 4 ↗ |
| Jul 21, 2025 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 12,859 | $54.86 | $705.4K Sale | Form 4 ↗ |
| Jun 10, 2025 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 10,000 | $57.03 | $570.3K Sale | Form 4 ↗ |
| Jun 9, 2025 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 10,000 | $55.51 | $555.1K Sale | Form 4 ↗ |
| Apr 22, 2025 | Ali Asif Chief Financial Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 1,756 | $46.00 | $80.8K Sale | Form 4 ↗ |
| Mar 17, 2025 | William D. Waddill Director | PTGX Protagonist Therapeutics, Inc. | Sale | 4,000 | $54.25 | $217.0K Sale | Form 4 ↗ |
| Mar 13, 2025 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 30,514 | $55.74 | $1.7M Sale | Form 4 ↗ |
| Mar 12, 2025 | Ali Asif Chief Financial Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 24,903 | $58.73 | $1.5M Sale | Form 4 ↗ |
| Feb 19, 2025 | Patel Dinesh V PH D President and CEO, Director | PTGX Protagonist Therapeutics, Inc. | Sale | 5,359 | $38.18 | $204.6K Sale | Form 4 ↗ |
| Jan 16, 2025 | Arturo Molina MD Chief Medical Officer | PTGX Protagonist Therapeutics, Inc. | Sale | 3,252 | — | $0 Sale | Form 4 ↗ |
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