Harrison Robert Gardner - Insider Non-Derivative Transactions at SERA PROGNOSTICS, INC. (SERA) - (SEC)
Updated on January 3, 2026.
According to recent SEC insider information filed on Dec 30, 2025, Harrison Robert Gardner's relationship to SERA PROGNOSTICS, INC. (SERA) is Officer (Chief Information Officer), and currently has 84,788 shares of Class A Common Stock.
The chart below shows the number of shares owned, and the table shows the recent insider transactions.
You can see similar information for other SERA insiders.
Related Topics: SEC Topic List.
Data Source: SEC.
Harrison Robert Gardner - Insider Non-Derivative Transactions of SERA Class A Common Stock
Harrison Robert Gardner - Insider Non-Derivative Transactions at SERA
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| Date | Transaction | No. of Shares | Price Per Share | Shares Owned After Transactions |
|---|---|---|---|---|
| Dec 31, 2025 | Sell -- (Class A Common Stock) | 2000 | 3 | 84788 |
| Dec 11, 2025 | Sell -- (Class A Common Stock) | 616 | 3.31 | 86788 |
| Dec 3, 2025 | Sell -- (Class A Common Stock) | 2000 | 2.93 | 87404 |
| Nov 11, 2025 | Sell -- (Class A Common Stock) | 6528 | 2.62 | 89404 |
| Nov 5, 2025 | Sell -- (Class A Common Stock) | 2000 | 3.07 | 95932 |
| Oct 8, 2025 | Sell -- (Class A Common Stock) | 2000 | 3.18 | 97932 |
| Sep 12, 2025 | Sell -- (Class A Common Stock) | 645 | 3.13 | 99932 |
| Sep 10, 2025 | Sell -- (Class A Common Stock) | 2000 | 3.05 | 100577 |
| Aug 21, 2025 | Sell -- (Class A Common Stock) | 6000 | 2.22 | 102577 |
| Aug 9, 2025 | Sell -- (Class A Common Stock) | 5962 | 2.54 | 108577 |
| Jun 11, 2025 | Sell -- (Class A Common Stock) | 667 | 1.48 | 114539 |
| May 9, 2025 | Sell -- (Class A Common Stock) | 6551 | 2.44 | 115206 |
| Mar 8, 2025 | Sell -- (Class A Common Stock) | 3874 | 4.16 | 121757 |
| Mar 7, 2025 | Sell -- (Class A Common Stock) | 3251 | 4.16 | 125631 |
| Mar 6, 2025 | Acquisition -- (Class A Common Stock) | 25770 | 0 | 128882 |
| Feb 14, 2025 | Sell -- (Class A Common Stock) | 3610 | 4.28 | 103112 |
| Feb 13, 2025 | Sell -- (Class A Common Stock) | 7297 | 4.58 | 106722 |
| Feb 12, 2025 | Sell -- (Class A Common Stock) | 554 | 3.97 | 114019 |
| Jan 14, 2025 | Sell -- (Class A Common Stock) | 2264 | 6.47 | 114573 |
| Jan 11, 2025 | Sell -- (Class A Common Stock) | 1837 | 8.01 | 116837 |
| Jan 11, 2025 | Sell -- (Class A Common Stock) | 12372 | 7.3 | 118674 |
| Nov 12, 2024 | Sell -- (Class A Common Stock) | 4727 | 7.32 | 131046 |
| Aug 8, 2024 | Sell -- (Class A Common Stock) | 5022 | 7.42 | 135773 |
| May 9, 2024 | Sell -- (Class A Common Stock) | 4902 | 9.59 | 140795 |
| Mar 7, 2024 | Sell -- (Class A Common Stock) | 2138 | 9.02 | 145697 |
| Feb 7, 2024 | Sell -- (Class A Common Stock) | 5665 | 8.03 | 147835 |
| Nov 7, 2023 | Acquisition -- (Class A Common Stock) | 125000 | 0 | 153500 |
| Jun 6, 2023 | Sell -- (Class A Common Stock) | 5000 | 3.23 | 28500 |
| Mar 7, 2023 | Acquisition -- (Class A Common Stock) | 28500 | 0 | 28500 |
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