| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Chief Information Officer
1 company
Robert Gardner Harrison is Chief Information Officer at SERA. From March 2023 to March 2026, the filings on record show 0 open-market purchases and 28 sales. Robert Gardner Harrison's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $148K at current prices.
Our model assigns Robert Gardner Harrison 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%.
The SERA filings lean toward selling, a net 107,558 shares.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Feb 11, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell10b5-1 | 554 | $3.97 | $2,199.38 | -0.5% | -42.4% | -35.7% | |
| Jan 13, 2025 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell10b5-1 | 16,473 | $7.27 | $119,678.05 | -12.6% | -47.2% | -43.1% | |
| Nov 11, 2024 | SERA Sera Prognostics, Inc. | Chief Information Officer | Sell | 4,727 | $7.32 | $34,601.64 | -3.5% | -40.2% | -63.8% | |
| 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% |