| Insider | Role | Shares | Value | Buys | Sells |
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| Insider | Role | Shares | Value | Buys | Sells |
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Chief Information Officer
1 company
Harrison Robert Gardner is a Chief Information Officer at SERA. Recent filings cover 0 purchases and 30 sales. Those positions are worth an estimated $156K at current prices.
Our model assigns Harrison Robert Gardner a strong insider score of 75/100, based on 29 past trades. Over a 12-month horizon, 90.0% of those trades were profitable, with an average 12-month return of +30.9%.
Harrison Robert Gardner's largest disclosed position is in SERA as Chief Information Officer, worth about $156K. The recent filings there lean toward selling, a net 107,558 shares.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 11, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 645 | $3.13 | $2,018.85 | -0.6% | +10.7% | -33.9% | |
| Sep 9, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell10b5-1 | 2,000 | $3.05 | $6,100.00 | -1.9% | -1.6% | -35.5% | |
| Aug 20, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell10b5-1 | 6,000 | $2.22 | $13,320.00 | -5.5% | +38.7% | -6.7% | |
| Aug 8, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 5,962 | $2.54 | $15,143.48 | -5.2% | +8.9% | -16.5% | |
| Jun 10, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 667 | $1.48 | $987.16 | -0.6% | +112.8% | +34.2% | |
| May 8, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 6,551 | $2.44 | $15,984.44 | -5.4% | +29.7% | -11.3% | |
| Mar 7, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell10b5-1 | 3,874 | $4.16 | $16,115.84 | -3.1% | -63.0% | -55.3% | |
| Mar 6, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 3,251 | $4.16 | $13,524.16 | -2.5% | -59.0% | -53.5% | |
| Feb 13, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell10b5-1 | 3,610 | $4.28 | $15,450.80 | -3.4% | -47.3% | -37.9% | |
| Feb 12, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 7,297 | $4.58 | $33,420.26 | -6.4% | -45.2% | -39.4% |