Senior insider sale
Chief Information Officer at SERA PROGNOSTICS, INC. — senior position signals high conviction
$26.9K
10.69K shares
What this filing means
HARRISON ROBERT GARDNER plans to sell 10.69K shares of SERA PROGNOSTICS, INC. valued at approximately $26.9K. 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: 3/12/2026ACC: 0001193125-26-104697
Officer· Chief Information Officer
Since Nov 2021
10.69K
Shares to sell
$26.9K
Approx. market value
716.00
Acquired (3 months)
1
Planned
5 completed
Securities Acquired — Last 3 Months1
Restricted Stock Unit Vesting
Not Applicable
3/11/2026
716.00Total acquired716.00
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
3/11/2026 | Restricted Stock Unit Vesting Not Applicable | 716.00 | — |
| Total | 716.00 | ||
Planned & Completed Dispositions6
Completed
—Completed
Units to sell
3.36K
Market value
$6.6K
3/9/2026
—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
716.00
Market value
$1.5K
3/11/2026
Total
Units
10.69K
Value
$26.9K
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
3/9/2026 | 3.36K | $6.6K | — | 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 | ||||
3/11/2026 | 716.00 | $1.5K | NASDAQ | Planned |
| Total | 10.69K | $26.9K | ||