Harrison Robert Gardner
Chief Information Officer
1 company
Insider Signal Score
74
StrongTrades Analyzed
26
12M Win Rate
86.7%
Avg 3M Return
+13.7%
Avg 12M Return
+32.6%
Harrison Robert Gardner is a Chief Information Officer at SERA PROGNOSTICS, INC.. Recent SEC Form 4 filings include 0 buys and 5 sells.
Estimated insider holdings value: $150K based on current market prices.
Holdings by Company
SERAMar 11, 2026
Current Shares76.7K
Value$150.4K
Net Activity-100,198
Bought: 0Sold: 100.2K
Transaction History
Showing 5 filings (page 3)
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 7, 2024 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 5,022 | $7.42 | $37,263.24 | -3.6% | +3.4% | -64.9% | |
| May 8, 2024 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 4,902 | $9.59 | $47,010.18 | -3.4% | -20.3% | -77.2% | |
| Mar 6, 2024 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 2,138 | $9.02 | $19,284.76 | -1.4% | -1.0% | -54.2% | |
| Feb 6, 2024 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 5,665 | $8.03 | $45,489.95 | -3.7% | +19.4% | -39.4% | |
| Jun 5, 2023 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 5,000 | $3.23 | $16,150.00 | -14.9% | -43.6% | +181.2% |
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