Sera Prognostics counsel sells 2,190 shares
SERA’s General Counsel executed a small, non-discretionary share sale to cover taxes on vested RSUs.
Sentiment and the balance of points
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
Form Type
4
Rhea-AI Filing Summary
SERA PROGNOSTICS, INC. (SERA) reported that its General Counsel, Benjamin Jackson, sold 2,190 shares of Class A Common Stock on September 10, 2026 at a weighted average price of about $2.00 per share. The shares were sold to cover tax withholding on vested RSUs under a mandated "sell to cover" arrangement. After this transaction, he held 159,566 shares directly.
Insider Trade Summary
Net Seller: 2,190 shares
Net Sell
1 txn
Insider
Jackson Benjamin
Role
General Counsel
Sold
2,190 shs ($4K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Class A Common Stock F1, F2 | 2,190 | $2.00 | $4K |
Holdings After Transaction:
Class A Common Stock — 159,566 shares (Direct)
Footnotes (2)
- F1. Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.
- F2. The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.00 to $2.03, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.
Key Figures
Shares sold: 2,190 shares
Weighted average sale price: $2.00 per share
Post-transaction holdings: 159,566 shares
+1 more
4 metrics
Shares sold
2,190 shares
Class A Common Stock sold on September 10, 2026
Weighted average sale price
$2.00 per share
Block trade with prices from $2.00 to $2.03 per share
Post-transaction holdings
159,566 shares
Shares of Class A Common Stock held directly after the sale
Price range of block trade
$2.00–$2.03 per share
Range for multiple transactions included in the block trade
Key Terms
sell to cover, restricted stock units, weighted average price, block trade
4 terms
sell to cover financial
"mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions"
Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.
restricted stock units financial
"in connection with the vesting of restricted stock units ("RSUs")"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
weighted average price financial
"The price reported is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
block trade financial
"These shares were sold as part of a block trade in multiple transactions"
A block trade is a large, privately arranged sale or purchase of a company's shares or bonds between big investors, often negotiated to avoid upsetting the public market price. Think of it like selling a truckload of goods directly to one buyer instead of unloading it on a busy street — it moves a lot of supply at once and can signal shifting demand, affect immediate liquidity, and influence short-term stock prices.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transaction did SERA (SERA) disclose in this Form 4?
SERA disclosed that General Counsel Benjamin Jackson sold 2,190 shares of Class A Common Stock on September 10, 2026, in a transaction reported as a sale in the open market or a private transaction.
Was the SERA insider sale made under a Rule 10b5-1 trading plan?
The filing’s Rule 10b5-1 checkbox is not marked as affirmative, and the footnotes describe the sale as a mandated "sell to cover" for taxes, not as a discretionary trade under a pre-arranged trading plan.
AI-generated analysis. How Rhea-AI works. Not financial advice.
