This is a routine sell-to-cover transaction for tax obligations, not a signal of insider bearishness. No material impact expected. Monitor for any discretionary insider sales in future filings.
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Executive Summary
Officer Tiffany Inglis filed a Form 144 notice of intent to sell 8,024 shares of Sera Prognostics Class A Common stock, valued at approximately $162,940 based on the 10/12/2026 price of $20.31/share. The filing explicitly states the sale is mandatory to cover tax withholding obligations upon vesting of restricted stock units, not a discretionary insider trade.
Key Facts
- Reporting person: Tiffany Inglis (Officer)
- Shares to be sold: 8,024 shares of Class A Common
- Approximate value: $162,940 (based on 10/12/2026 price of $20.31)
- Sale purpose: mandatory tax withholding on RSU vesting, not discretionary
- Broker: Morgan Stanley Smith Barney LLC
- Filing date: 2026-10-13
Financial Impact
~$163K sale, ~0.02% of market cap (based on ~39.4M shares outstanding)
Risk Factors
- None — mandatory tax withholding sale, not discretionary
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0002091798-26-000009 |
| Document: 0002091798-26-000009-index.html | 0002091798-26-000009 |
| Document: 0002091798-26-000009.txt | 0002091798-26-000009 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 21, 2026 5d ago | Press Release | $2.04 | awaiting T+60 | — | $2.04 (−0.00%) |
Oct 13, 2026 13d ago | 144 | $2.07 | awaiting T+60 | — | $2.04 (−1.45%) |
Aug 19, 2026 9w ago | 8-K | $2.10 | awaiting T+60 | — | $2.04 (−2.86%) |
Jun 30, 2026 16w ago | 8-K | $2.03 $2.11 | ▲ +3.94% | ▲ +0.98% | $2.04 (+0.49%) |
Jun 15, 2026 19w ago | Insider Cluster | $1.86 $2.05 | ▼ −10.22% | ▼ −9.22% | $2.04 (−9.68%) |
Jun 8, 2026 20w ago | 144 | $2.13 $2.01 | ▼ −5.63% | ▼ −9.45% | $2.04 (−4.23%) |
Jun 1, 2026 21w ago | 8-K | $2.04 $2.09 | ▲ +2.45% | ▲ +1.33% | $2.04 (−0.00%) |
Apr 24, 2026 26w ago | DEFA14A | $2.00 $2.08 | ▲ +4.00% | ▼ −0.78% | $2.04 (+2.00%) |
Mar 6, 2026 33w ago | Insider Cluster | $1.95 $2.19 | ▲ +12.31% | ▼ −0.47% | $2.04 (+4.62%) |
Mar 6, 2026 33w ago | Insider Cluster | $1.95 $2.19 | ▲ +12.31% | ▼ −0.47% | $2.04 (+4.62%) |
US Market Status
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