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Harrison Robert Gardner
InsiderCIK 0001421563
Largest Purchase
No open-market purchases in the recent filings.
Profile
- Filings
- 12
- Buy transactions
- 0
- Sell transactions
- 12
- Companies
- 1
- Active
- 2025–2026
Across 12 filings between 2025–2026, Harrison Robert Gardner has disclosed $75.7K in transactions — all concentrated in SERA PROGNOSTICS, INC. (SERA). Their disclosed trades are heavily weighted toward selling — $0 in buys and $75.7K in sells. Data is sourced from official SEC Form 3, 4, and 5 filings.
Associated Companies
Trading History
12 loaded
| Mar 12 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $1.5K |
| Mar 10 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $6.6K |
| Feb 24 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $4.7K |
| Dec 30 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $6.0K |
| Dec 11 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $2.0K |
| Dec 3 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $5.9K |
| Nov 4 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $6.1K |
| Oct 8 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $6.4K |
| Sep 12 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $2.0K |
| Sep 9 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $6.1K |
| Aug 20 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $13.3K |
| Aug 11 | SERA SERA PROGNOSTICS, INC. | Harrison Robert Gardner | Insider | Sell | $15.1K |
12 filings