Senior insider sale
Chief Information Officer at SERA PROGNOSTICS, INC. — senior position signals high conviction
$25.5K
9.98K shares
What this filing means
HARRISON ROBERT GARDNER plans to sell 9.98K shares of SERA PROGNOSTICS, INC. valued at approximately $25.5K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 3/10/2026ACC: 0001193125-26-100521
Officer· Chief Information Officer
Since Nov 2021
9.98K
Shares to sell
$25.5K
Approx. market value
3.36K
Acquired (3 months)
1
Planned
4 completed
Securities Acquired — Last 3 Months1
Restricted Stock Unit Vesting
Not Applicable
3/9/2026
3.36KTotal acquired3.36K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
3/9/2026 | Restricted Stock Unit Vesting Not Applicable | 3.36K | — |
| Total | 3.36K | ||
Planned & Completed Dispositions5
Completed
—Completed
Units to sell
2K
Market value
$4.9K
2/24/2026
—Completed
Units to sell
2K
Market value
$5.9K
1/27/2026
—Completed
Units to sell
2K
Market value
$6.0K
12/30/2025
—Completed
Units to sell
616.00
Market value
$2.0K
12/10/2025
Planned — Approximate Date
NASDAQPlanned
Units to sell
3.36K
Market value
$6.6K
3/9/2026
Total
Units
9.98K
Value
$25.5K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
2/24/2026 | 2K | $4.9K | — | Completed |
1/27/2026 | 2K | $5.9K | — | Completed |
12/30/2025 | 2K | $6.0K | — | Completed |
12/10/2025 | 616.00 | $2.0K | — | Completed |
| Planned — Approximate Date | ||||
3/9/2026 | 3.36K | $6.6K | NASDAQ | Planned |
| Total | 9.98K | $25.5K | ||