InsiderTape plots every Form 4 on the price chart and flags cluster buys, CEO conviction, and first buys in years the moment they file. Start a free 7-day trial, cancel anytime.
START FREE TRIAL →Robert Gardner Harrison, Chief Information Officer, is a corporate insider tracked by InsiderTape across 1 company. The public record shows 29 open-market SEC Form 4 transactions: 0 purchases worth $0 and 29 sales worth $501K, reported from Jun 5, 23 to Mar 11, 26. Over this period they have been a net seller.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 11, 26 | SERASERA PROGNOSTICS, INC. | SELL | 716 | $2.04 | $1K |
| Mar 9, 26 | SERASERA PROGNOSTICS, INC. | SELL | 3.4K | $1.96 | $7K |
| Feb 24, 26 | SERASERA PROGNOSTICS, INC. | SELL | 2.0K | $2.34 | $5K |
| Jan 27, 26 | SERASERA PROGNOSTICS, INC. | SELL | 2.0K | $2.97 | $6K |
| Dec 30, 25 | SERASERA PROGNOSTICS, INC. | SELL | 2.0K | $3.00 | $6K |
| Dec 10, 25 | SERASERA PROGNOSTICS, INC. | SELL | 616 | $3.31 | $2K |
| Dec 2, 25 | SERASERA PROGNOSTICS, INC. | SELL | 2.0K | $2.93 | $6K |
| Nov 10, 25 | SERASERA PROGNOSTICS, INC. | SELL | 6.5K | $2.62 | $17K |
| Nov 4, 25 | SERASERA PROGNOSTICS, INC. | SELL | 2.0K | $3.07 | $6K |
| Oct 7, 25 | SERASERA PROGNOSTICS, INC. | SELL | 2.0K | $3.18 | $6K |
| Sep 11, 25 | SERASERA PROGNOSTICS, INC. | SELL | 645 | $3.13 | $2K |
| Sep 9, 25 | SERASERA PROGNOSTICS, INC. | SELL | 2.0K | $3.05 | $6K |
| Aug 20, 25 | SERASERA PROGNOSTICS, INC. | SELL | 6.0K | $2.22 | $13K |
| Aug 8, 25 | SERASERA PROGNOSTICS, INC. | SELL | 6.0K | $2.54 | $15K |
| Jun 10, 25 | SERASERA PROGNOSTICS, INC. | SELL | 667 | $1.48 | $987 |
| May 8, 25 | SERASERA PROGNOSTICS, INC. | SELL | 6.6K | $2.44 | $16K |
| Mar 7, 25 | SERASERA PROGNOSTICS, INC. | SELL | 3.9K | $4.16 | $16K |
| Mar 6, 25 | SERASERA PROGNOSTICS, INC. | SELL | 3.3K | $4.16 | $14K |
| Feb 13, 25 | SERASERA PROGNOSTICS, INC. | SELL | 3.6K | $4.28 | $15K |
| Feb 12, 25 | SERASERA PROGNOSTICS, INC. | SELL | 7.3K | $4.58 | $33K |
| Feb 11, 25 | SERASERA PROGNOSTICS, INC. | SELL | 554 | $3.97 | $2K |
| Jan 13, 25 | SERASERA PROGNOSTICS, INC. | SELL | 2.3K | $6.47 | $15K |
| Jan 10, 25 | SERASERA PROGNOSTICS, INC. | SELL | 12.4K | $8.01 | $90K |
| Nov 11, 24 | SERASERA PROGNOSTICS, INC. | SELL | 4.7K | $7.32 | $35K |
| Aug 7, 24 | SERASERA PROGNOSTICS, INC. | SELL | 5.0K | $7.42 | $37K |
| May 8, 24 | SERASERA PROGNOSTICS, INC. | SELL | 4.9K | $9.59 | $47K |
| Mar 6, 24 | SERASERA PROGNOSTICS, INC. | SELL | 2.1K | $9.02 | $19K |
| Feb 6, 24 | SERASERA PROGNOSTICS, INC. | SELL | 5.7K | $8.03 | $45K |
| Jun 5, 23 | SERASERA PROGNOSTICS, INC. | SELL | 5.0K | $3.23 | $16K |