Ouster CFO sells 15,686 shares for tax cover
Ouster’s CFO sold shares under a Rule 10b5-1 sale-to-cover arrangement to pay taxes on RSU vesting, leaving a sizable remaining direct holding.
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Form Type
4
Rhea-AI Filing Summary
Ouster, Inc. (OUST) reported that its Chief Financial Officer, Kenneth P. Gianella, sold 15,686 shares of common stock on September 14, 2026. The sale was made to cover withholding taxes upon vesting and settlement of restricted stock units and was executed pursuant to a Rule 10b5-1 sale to cover instruction letter dated August 20, 2025. After this transaction, he held 245,328 shares directly.
Insider Trade Summary 10b5-1
Net Seller: 15,686 shares
Net Sell
1 txn
Insider
Gianella Kenneth P.
Role
Chief Financial Officer
Sold
15,686 shs ($533K)
Share of Position Sold
6.0%
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock F1, F2 | 15,686 | $33.9591 | $533K |
Holdings After Transaction:
Common Stock — 245,328 shares (Direct)
Holdings Before and After:
Common Stock, 261,014 to 245,328 shares (Direct)
Other Insiders: 5 other insiders reported open-market sales of this stock in the 30 days up to this filing.
Footnotes (2)
- F1. Reflects shares sold to cover withholding taxes incurred upon the vesting and settlement of restricted stock units pursuant to a Rule 10b5-1 sale to cover instruction letter dated August 20, 2025.
- F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.705 to $33.9661. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Key Figures
Shares sold: 15,686 shares
Weighted average sale price: $33.9591 per share
Post-transaction holdings: 245,328 shares
+1 more
4 metrics
Shares sold
15,686 shares
Common stock sale on September 14, 2026 to cover withholding taxes
Weighted average sale price
$33.9591 per share
Average price for the 15,686 shares sold on September 14, 2026
Post-transaction holdings
245,328 shares
Common stock directly held by the CFO after the sale
Sale price range
$33.705 to $33.9661 per share
Range of prices for multiple sale transactions included in the Form 4
Key Terms
Rule 10b5-1, withholding taxes, restricted stock units, weighted average price
4 terms
Rule 10b5-1 regulatory
"pursuant to a Rule 10b5-1 sale to cover instruction letter"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.
withholding taxes financial
"shares sold to cover withholding taxes incurred upon the vesting"
Withholding taxes are amounts a payer or government takes out of payments — such as wages, interest, or dividends — before the recipient gets the money, functioning like a cashier keeping part of a bill to pay taxes on your behalf. For investors this matters because it reduces the cash they actually receive, affects net returns and yield calculations, and may require additional paperwork or treaty claims to recover or offset the withheld amount against final tax bills.
restricted stock units financial
"upon the vesting and settlement of restricted stock units"
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 in Column 4 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.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did OUST’s CFO report in this Form 4 transaction?
Ouster’s CFO, Kenneth P. Gianella, reported selling 15,686 shares of OUST common stock on September 14, 2026, described as a sale to cover withholding taxes related to vesting and settlement of restricted stock units.
What is the size of the OUST CFO’s sale relative to his remaining holdings?
The CFO sold 15,686 shares and held 245,328 shares afterward. The filing does not provide a percentage, but it shows he retained a substantially larger direct position than the number of shares sold.
AI-generated analysis. How Rhea-AI works. Not financial advice.
