Ouster CTO sells shares, exercises stock options
Ouster, Inc. Chief Technology Officer Mark Frichtl reported a series of exercise-and-sell transactions in May 2026.
Rhea-AI Filing Summary
Ouster, Inc. Chief Technology Officer Mark Frichtl reported a series of exercise-and-sell transactions in May 2026. Over May 13–15, he sold a total of 180,750 shares of common stock in open-market trades at prices generally between $31.00 and $36.02, pursuant to a Rule 10b5-1 plan dated December 15, 2025.
To support these sales, he exercised stock options covering 97,091 shares of common stock at exercise prices of $2.13 and $14.22 per share. Following the transactions, he holds 628,638 shares of common stock directly.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and sale activity reported; no spread calculated
Exercise and Sale
16 txns
Insider
Frichtl Mark
Role
Chief Technology Officer
Sold
180,750 shs ($6.00M)
Approx. gross sale proceeds
$6.00M
Approx. exercise cost
$1.00M
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Non-Qualified Stock Option | 4,316 | $0.00 | $0.00 |
| Exercise | Common Stock | 4,316 | $14.22 | $61K |
| Sale | Common Stock | 4,316 | $36.001 | $155K |
| Exercise | Non-Qualified Stock Option | 40,000 | $0.00 | $0.00 |
| Exercise | Common Stock | 40,000 | $14.22 | $569K |
| Sale | Common Stock | 40,000 | $35.00 | $1.40M |
| Exercise | Non-Qualified Stock Option | 31,434 | $0.00 | $0.00 |
| Exercise | Non-Qualified Stock Option | 21,341 | $0.00 | $0.00 |
| Exercise | Common Stock | 31,434 | $2.13 | $67K |
| Sale | Common Stock | 31,434 | $31.0928 | $977K |
| Exercise | Common Stock | 21,341 | $14.22 | $303K |
| Sale | Common Stock | 21,341 | $34.00 | $726K |
| Sale | Common Stock | 35,000 | $32.00 | $1.12M |
| Sale | Common Stock | 2,500 | $33.00 | $83K |
| Sale | Common Stock | 32,500 | $33.00 | $1.07M |
| Sale | Common Stock | 13,659 | $34.00 | $464K |
Holdings After Transaction:
Non-Qualified Stock Option — 50,063 contracts (Direct);
Common Stock — 628,638 shares (Direct)
Footnotes (4)
- F1. Reflects shares sold pursuant to a Rule 10b5-1 plan dated December 15, 2025.
- F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.00 to $31.21. 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.
- F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.00 to $36.02. 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.
- F4. The options are fully vested and exercisable.
Key Figures
Shares sold: 180,750 shares
Options exercised: 97,091 shares
Exercise price (option block 1): $14.22/share
+4 more
7 metrics
Shares sold
180,750 shares
Total common stock sales over May 13–15, 2026
Options exercised
97,091 shares
Underlying common shares from option exercises in this filing
Exercise price (option block 1)
$14.22/share
Non-qualified stock options exercised into common stock
Exercise price (option block 2)
$2.13/share
Non-qualified stock options exercised into common stock
Highest reported sale price
$36.02/share
Upper end of weighted-average sale range in one footnote
Lowest reported sale price
$31.00/share
Lower end of weighted-average sale range in one footnote
Shares owned after transactions
628,638 shares
Direct common stock holdings following the reported trades
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 shares."
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.
fully vested and exercisable financial
"The options are fully vested and exercisable."
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transactions did Ouster (OUST) CTO Mark Frichtl report?
Mark Frichtl reported multiple exercise-and-sell transactions. He sold 180,750 Ouster common shares in open-market trades and exercised stock options covering 97,091 shares, converting derivative awards into common stock before selling a portion.
Over what period did the Ouster (OUST) CTO’s latest Form 4 trades occur?
The trades occurred over three days in May 2026. Transactions were dated May 13, May 14, and May 15, combining option exercises with open-market sales of Ouster common stock during this short window.
What stock options did the Ouster (OUST) CTO exercise in this filing?
He exercised non-qualified stock options covering 97,091 shares of Ouster common stock. These options had exercise prices of $2.13 and $14.22 per share and were described as fully vested and exercisable.
Were Ouster (OUST) CTO Mark Frichtl’s sales under a Rule 10b5-1 plan?
Yes. A footnote states the reported sales were made under a Rule 10b5-1 trading plan dated December 15, 2025, indicating the transactions were pre-arranged rather than timed on a purely discretionary basis.
AI-generated analysis. How Rhea-AI works. Not financial advice.
