Ouster (NYSE: OUST) CTO sells 120K shares after option exercise
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Ouster, Inc. Chief Technology Officer Mark Frichtl executed an exercise-and-sell transaction in company stock. On April 20 and 21, 2026, he exercised options to acquire a total of 120,000 shares of Ouster common stock at an exercise price of $2.13 per share and sold 120,000 shares in open-market transactions.
The sales were made at weighted average prices ranging from about $26.08 to $29.02 per share, with individual trades occurring within price ranges from $26.00 to $29.25. These sales were conducted under a pre-arranged Rule 10b5-1 trading plan dated December 15, 2025, indicating they were scheduled in advance rather than timed discretionarily.
After these transactions, Frichtl directly holds 712,297 shares of Ouster common stock, reflecting that he retained a substantial equity stake in the company following the option exercises and related sales.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Net Seller: 120,000 shares ($3,308,667)
Net Sell
8 txns
Insider
Frichtl Mark
Role
Chief Technology Officer
Sold
120,000 shs ($3.31M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Non-Qualified Stock Option | 60,000 | $0.00 | -- |
| Exercise | Common Stock | 60,000 | $2.13 | $128K |
| Sale | Common Stock | 30,000 | $28.1111 | $843K |
| Sale | Common Stock | 30,000 | $29.0176 | $871K |
| Exercise | Non-Qualified Stock Option | 60,000 | $0.00 | -- |
| Exercise | Common Stock | 60,000 | $2.13 | $128K |
| Sale | Common Stock | 30,000 | $26.0849 | $783K |
| Sale | Common Stock | 30,000 | $27.0753 | $812K |
Holdings After Transaction:
Non-Qualified Stock Option — 66,434 shares (Direct, null);
Common Stock — 772,297 shares (Direct, null)
Footnotes (1)
- Reflects shares sold pursuant to a Rule 10b5-1 plan dated December 15, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.00 to $26.29. 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.00 to $27.23. 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.00 to $28.44. 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.25. 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. The options are fully vested and exercisable.
Key Figures
Shares sold: 120,000 shares
Option shares exercised: 120,000 shares
Option exercise price: $2.13 per share
+3 more
6 metrics
Shares sold
120,000 shares
Total common stock sold in open-market transactions on April 20–21, 2026
Option shares exercised
120,000 shares
Common shares acquired via option exercises on April 20–21, 2026
Option exercise price
$2.13 per share
Exercise price for non-qualified stock options converted into common stock
Sale prices (example)
$26.0849 and $27.0753
Weighted average prices for two 30,000-share sales on April 20, 2026
Sale prices (example)
$28.1111 and $29.0176
Weighted average prices for two 30,000-share sales on April 21, 2026
Post-transaction holdings
712,297 shares
Ouster common stock directly owned by CTO after reported transactions
Key Terms
Rule 10b5-1 plan, Non-Qualified Stock Option, weighted average price, derivative security, +1 more
5 terms
Rule 10b5-1 plan regulatory
"Reflects shares sold pursuant to a Rule 10b5-1 plan dated December 15, 2025."
A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.
Non-Qualified Stock Option financial
"security_title: "Non-Qualified Stock Option" with underlying common stock."
A non-qualified stock option (NSO) is a contract that lets an employee or service provider buy company shares at a fixed price for a set period, like a voucher to purchase stock later at today’s price. It matters to investors because exercising NSOs creates ordinary income for the holder and can increase share count, affecting a company’s earnings and ownership mix; think of it as a future sale that can dilute existing shareholders and has immediate tax consequences for the recipient.
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.
derivative security financial
"transaction_code_description: "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
open-market sale financial
"transaction_action: "open-market sale" for common stock transactions."
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
FAQ
What did Ouster (OUST) CTO Mark Frichtl do in this Form 4 filing?
Mark Frichtl exercised stock options and sold Ouster shares in open-market trades. He acquired 120,000 shares at an exercise price of $2.13 and sold 120,000 shares at weighted average prices between about $26 and $29 per share.
Were the Ouster (OUST) insider stock sales pre-planned under Rule 10b5-1?
Yes. A footnote states the reported share sales were made under a Rule 10b5-1 trading plan dated December 15, 2025. Such plans are established in advance and are designed to allow routine, pre-scheduled stock sales by insiders.
What option exercise activity did the Ouster (OUST) CTO report?
He reported exercising non-qualified stock options covering 120,000 shares of Ouster common stock. The options were exercised at an exercise price of $2.13 per share, converting the derivative awards into directly held common shares before the related open-market sales.
What do the weighted average price disclosures mean in the Ouster (OUST) Form 4?
Each reported sale price is a weighted average of multiple trades executed within a price range on that day. Footnotes specify ranges, such as $26.00 to $26.29, and note the insider can provide detailed trade breakdowns upon request to investors or regulators.