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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 SERA
| Traded | Insider | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | Tiffany Eul Davis Inglis Chief Medical Officer | SERA Sera Prognostics, Inc. | Sale | 486 | $2.00 | $972 Sale | Form 4 ↗ |
| Sep 10, 2026 | Dyaarl Lee Anderson Jr. Chief Commercial Officer | SERA Sera Prognostics, Inc. | Sale | 1,800 | $2.00 | $3,600 Sale | Form 4 ↗ |
| Sep 10, 2026 | Zhenya Lindgardt Chief Executive Officer, Director | SERA Sera Prognostics, Inc. | Sale | 7,022 | $2.00 | $14.0K Sale | Form 4 ↗ |
| Sep 10, 2026 | Benjamin Jackson General Counsel | SERA Sera Prognostics, Inc. | Sale | 2,190 | $2.00 | $4,380 Sale | Form 4 ↗ |
| Sep 8, 2026 | Zhenya Lindgardt Chief Executive Officer, Director | SERA Sera Prognostics, Inc. | Sale | 20,139 | $2.00 | $40.3K Sale | Form 4 ↗ |
| Jun 11, 2026 | Tiffany Eul Davis Inglis Chief Medical Officer | SERA Sera Prognostics, Inc. | Sale | 362 | $2.01 | $728 Sale | Form 4 ↗ |
| Jun 11, 2026 | Dyaarl Lee Anderson Jr. Chief Commercial Officer | SERA Sera Prognostics, Inc. | Sale | 4,739 | $2.01 | $9,525 Sale | Form 4 ↗ |
| Jun 11, 2026 | Austin Aerts Chief Financial Officer | SERA Sera Prognostics, Inc. | Sale | 2,037 | $2.01 | $4,094 Sale | Form 4 ↗ |
| Jun 11, 2026 | Zhenya Lindgardt Chief Executive Officer, Director | SERA Sera Prognostics, Inc. | Sale | 6,990 | $2.01 | $14.0K Sale | Form 4 ↗ |
| Jun 11, 2026 | Benjamin Jackson General Counsel | SERA Sera Prognostics, Inc. | Sale | 2,179 | $2.01 | $4,380 Sale | Form 4 ↗ |
| Jun 9, 2026 | Austin Aerts Chief Financial Officer | SERA Sera Prognostics, Inc. | Sale | 5,440 | $2.08 | $11.3K Sale | Form 4 ↗ |
| Jun 9, 2026 | Zhenya Lindgardt Chief Executive Officer, Director | SERA Sera Prognostics, Inc. | Sale | 20,755 | $2.08 | $43.2K Sale | Form 4 ↗ |
| Jun 8, 2026 | Lawrence Sandra AJ Director | SERA Sera Prognostics, Inc. | Sale | 1,560 | $2.15 | $3,354 Sale | Form 4 ↗ |
| Mar 11, 2026 | Zhenya Lindgardt Chief Executive Officer, Director | SERA Sera Prognostics, Inc. | Sale | 2,973 | $2.04 | $6,065 Sale | Form 4 ↗ |
| Mar 11, 2026 | Paul Kearney Chief Data Officer | SERA Sera Prognostics, Inc. | Sale | 1,396 | $2.04 | $2,848 Sale | Form 4 ↗ |
| Mar 11, 2026 | Benjamin Jackson General Counsel | SERA Sera Prognostics, Inc. | Sale | 1,027 | $2.04 | $2,095 Sale | Form 4 ↗ |
| Mar 11, 2026 | Robert Gardner Harrison Chief Information Officer | SERA Sera Prognostics, Inc. | Sale | 716 | $2.04 | $1,461 Sale | Form 4 ↗ |
| Mar 11, 2026 | John J. Boniface Chief Scientific Officer | SERA Sera Prognostics, Inc. | Sale | 1,517 | $2.04 | $3,095 Sale | Form 4 ↗ |
| Mar 11, 2026 | Austin Aerts Chief Financial Officer | SERA Sera Prognostics, Inc. | Sale | 1,019 | $2.04 | $2,079 Sale | Form 4 ↗ |
| Mar 10, 2026 | Zhenya Lindgardt Chief Executive Officer, Director | SERA Sera Prognostics, Inc. | Sale | 22,639 | $1.90 | $43.0K Sale | Form 4 ↗ |
| Mar 10, 2026 | Austin Aerts Chief Financial Officer | SERA Sera Prognostics, Inc. | Sale | 6,069 | $1.90 | $11.5K Sale | Form 4 ↗ |
| Mar 9, 2026 | Paul Kearney Chief Data Officer | SERA Sera Prognostics, Inc. | Sale | 2,026 | $1.96 | $3,971 Sale | Form 4 ↗ |
| Mar 9, 2026 | Benjamin Jackson General Counsel | SERA Sera Prognostics, Inc. | Sale | 3,119 | $1.96 | $6,113 Sale | Form 4 ↗ |
| Mar 9, 2026 | Robert Gardner Harrison Chief Information Officer | SERA Sera Prognostics, Inc. | Sale | 3,360 | $1.96 | $6,586 Sale | Form 4 ↗ |
| Mar 9, 2026 | John J. Boniface Chief Scientific Officer | SERA Sera Prognostics, Inc. | Sale | 3,038 | $1.96 | $5,954 Sale | Form 4 ↗ |
| Mar 9, 2026 | Austin Aerts Chief Financial Officer | SERA Sera Prognostics, Inc. | Sale | 674 | $1.96 | $1,321 Sale | Form 4 ↗ |
| Mar 6, 2026 | Lawrence Sandra AJ Director | SERA Sera Prognostics, Inc. | Sale | 1,560 | $1.95 | $3,042 Sale | Form 4 ↗ |
| Feb 24, 2026 | Robert Gardner Harrison Chief Information Officer | SERA Sera Prognostics, Inc. | Sale | 2,000 | $2.34 | $4,680 Sale | Form 4 ↗ |
| Jan 27, 2026 | Robert Gardner Harrison Chief Information Officer | SERA Sera Prognostics, Inc. | Sale | 2,000 | $2.97 | $5,940 Sale | Form 4 ↗ |
| Dec 30, 2025 | Robert Gardner Harrison Chief Information Officer | SERA Sera Prognostics, Inc. | Sale | 2,000 | $3.00 | $6,000 Sale | Form 4 ↗ |
| Dec 10, 2025 | Zhenya Lindgardt Chief Executive Officer, Director | SERA Sera Prognostics, Inc. | Sale | 4,155 | $3.31 | $13.8K Sale | Form 4 ↗ |
| Dec 10, 2025 | Paul Kearney Chief Data Officer | SERA Sera Prognostics, Inc. | Sale | 1,213 | $3.31 | $4,015 Sale | Form 4 ↗ |
| Dec 10, 2025 | Benjamin Jackson General Counsel | SERA Sera Prognostics, Inc. | Sale | 892 | $3.31 | $2,953 Sale | Form 4 ↗ |
| Dec 10, 2025 | Robert Gardner Harrison Chief Information Officer | SERA Sera Prognostics, Inc. | Sale | 616 | $3.31 | $2,039 Sale | Form 4 ↗ |
| Dec 10, 2025 | John J. Boniface Chief Scientific Officer | SERA Sera Prognostics, Inc. | Sale | 1,332 | $3.31 | $4,409 Sale | Form 4 ↗ |
| Dec 10, 2025 | Austin Aerts Chief Financial Officer | SERA Sera Prognostics, Inc. | Sale | 873 | $3.31 | $2,890 Sale | Form 4 ↗ |
| Dec 9, 2025 | Zhenya Lindgardt Chief Executive Officer, Director | SERA Sera Prognostics, Inc. | Sale | 28,215 | $3.04 | $85.8K Sale | Form 4 ↗ |
| Dec 9, 2025 | Austin Aerts Chief Financial Officer | SERA Sera Prognostics, Inc. | Sale | 5,232 | $3.04 | $15.9K Sale | Form 4 ↗ |
| Dec 8, 2025 | Lawrence Sandra AJ Director | SERA Sera Prognostics, Inc. | Sale | 1,560 | $3.05 | $4,758 Sale | Form 4 ↗ |
| Dec 5, 2025 | Mansoor Raza Mirza Director | SERA Sera Prognostics, Inc. | Sale | 292 | $3.05 | $891 Sale | Form 4 ↗ |
| Dec 2, 2025 | Robert Gardner Harrison Chief Information Officer | SERA Sera Prognostics, Inc. | Sale | 2,000 | $2.93 | $5,860 Sale | Form 4 ↗ |
| Dec 2, 2025 | Paul Kearney Chief Data Officer | SERA Sera Prognostics, Inc. | Sale | 32,203 | $2.94 | $94.7K Sale | Form 4 ↗ |
| Nov 26, 2025 | Paul Kearney Chief Data Officer | SERA Sera Prognostics, Inc. | Sale | 1,986 | $3.51 | $6,971 Sale | Form 4 ↗ |
| Nov 10, 2025 | Zhenya Lindgardt Chief Executive Officer, Director | SERA Sera Prognostics, Inc. | Sale | 11,594 | $2.62 | $30.4K Sale | Form 4 ↗ |
| Nov 10, 2025 | Paul Kearney Chief Data Officer | SERA Sera Prognostics, Inc. | Sale | 7,073 | $2.62 | $18.5K Sale | Form 4 ↗ |
| Nov 10, 2025 | Benjamin Jackson General Counsel | SERA Sera Prognostics, Inc. | Sale | 7,059 | $2.62 | $18.5K Sale | Form 4 ↗ |
| Nov 10, 2025 | Robert Gardner Harrison Chief Information Officer | SERA Sera Prognostics, Inc. | Sale | 6,528 | $2.62 | $17.1K Sale | Form 4 ↗ |
| Nov 10, 2025 | John J. Boniface Chief Scientific Officer | SERA Sera Prognostics, Inc. | Sale | 7,767 | $2.62 | $20.3K Sale | Form 4 ↗ |
| Nov 10, 2025 | Austin Aerts Chief Financial Officer | SERA Sera Prognostics, Inc. | Sale | 6,351 | $2.62 | $16.6K Sale | Form 4 ↗ |
| Nov 5, 2025 | Mansoor Raza Mirza Director | SERA Sera Prognostics, Inc. | Sale | 221 | $3.04 | $672 Sale | Form 4 ↗ |
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