STOCK TITAN

Ouster (OUST) CTO exercises 100K options, 100K new shares locked up

(Very High)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Ouster, Inc. (OUST) reported that Chief Technology Officer Mark Frichtl exercised 100,000 incentive stock options on August 26, 2026 at an exercise price of $14.22 per share, receiving 100,000 shares of common stock. Following the transactions, he holds 376,510 common shares directly and 100,713 incentive stock options remain outstanding. The shares received upon exercise are subject to a lock-up period through August 31, 2026. The options exercised were fully vested and exercisable.

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Insider Frichtl Mark
Role Chief Technology Officer
Type Security Shares Price Value
Exercise Incentive Stock Option F3, F2 100,000 $0.00 $0.00
Exercise Common Stock F1 100,000 $14.22 $1.42M
Holdings After Transaction: Incentive Stock Option — 100,713 shares (Direct); Common Stock — 376,510 shares (Direct)
Footnotes (3)
  1. F1. The shares received upon exercise remain subject to a lock-up period that expires at the close of business on August 31, 2026, pursuant to the lock-up agreement entered into for the Registrant's offering of common stock that closed on July 6, 2026.
  2. F2. The options are fully vested and exercisable.
  3. F3. On the Reporting Person's Form 4 dated March 15, 2021 in which this option grant was reported, incentive stock options and non-qualified stock options were reported in the aggregate. All non-qualified stock options have since been exercised, with 100,713 incentive stock options remaining.
Incentive stock options exercised 100,000 shares Exercised on August 26, 2026 by CTO Mark Frichtl
Exercise price $14.22 per share Exercise of 100,000 incentive stock options
Common stock holdings after transaction 376,510 shares Direct ownership by Mark Frichtl after exercise
Remaining incentive stock options 100,713 options Incentive stock options remaining after all non-qualified options exercised
Option expiration date October 1, 2030 Expiration of exercised incentive stock option grant
Lock-up period end date August 31, 2026 End of lock-up on 100,000 shares received upon exercise
Incentive Stock Option financial
"security_title: "Incentive Stock Option" with underlying common stock"
An incentive stock option is a type of employee benefit that gives a worker the right to buy company shares at a fixed price, with special tax advantages if the employee holds the shares for a required period. Think of it as a coupon to buy future shares at today’s price that can result in lower tax on the gain. Investors care because ISOs can dilute share count, align staff incentives with the stock price, and affect company compensation costs and the timing of potential share sales.
lock-up period financial
"shares received upon exercise remain subject to a lock-up period"
A lock-up period is a fixed time after a stock offering during which company insiders and early investors are legally barred from selling their shares. It matters because when that restriction expires a large block of previously locked-up shares can enter the market at once, potentially lowering the stock price or spiking trading volume—like opening a floodgate—so investors monitor these dates to anticipate price moves and manage risk.
fully vested and exercisable financial
"The options are fully vested and exercisable."
non-qualified stock options financial
"incentive stock options and non-qualified stock options were reported"
Non-qualified stock options are a type of employee benefit that gives individuals the right to buy company shares at a set price, usually lower than the market value, within a certain period. Unlike other options that may have special tax advantages, these options are taxed as income when exercised, which can affect how much money the employee or investor ultimately gains. They are important because they can influence company compensation strategies and impact the financial outcomes for employees and investors.
Form 4 regulatory
"On the Reporting Person's Form 4 dated March 15, 2021"
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

What insider transaction did OUST CTO Mark Frichtl report on this Form 4?

Mark Frichtl exercised 100,000 incentive stock options for Ouster, Inc. (OUST) on August 26, 2026 at an exercise price of $14.22 per share, receiving 100,000 shares of common stock and reducing his remaining incentive stock options to 100,713.

How many OUST common shares does Mark Frichtl own after the reported transactions?

After the reported transactions, Mark Frichtl directly holds 376,510 shares of Ouster common stock, according to the Form 4 disclosure.

What is the exercise price and expiration date of the OUST options exercised by Mark Frichtl?

The incentive stock options exercised by Mark Frichtl had an exercise price of $14.22 per share and an expiration date of October 1, 2030, as disclosed in the Form 4.

Are the newly acquired OUST shares by Mark Frichtl subject to any lock-up?

Yes. The 100,000 Ouster (OUST) shares received upon exercise remain subject to a lock-up period through August 31, 2026, under a lock-up agreement tied to an offering of common stock that closed on July 6, 2026.

How many OUST incentive stock options remain after Mark Frichtl’s exercise?

After the August 26, 2026 exercise, 100,713 incentive stock options remain outstanding for Mark Frichtl, as noted in the Form 4 footnote.

Were the options exercised by the OUST CTO fully vested?

Yes. A footnote states that the options exercised by Mark Frichtl were fully vested and exercisable at the time of the August 26, 2026 transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Frichtl Mark

(Last)(First)(Middle)
350 TREAT AVENUE

(Street)
SAN FRANCISCO CALIFORNIA 94110

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Ouster, Inc. [ OUST ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Technology Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/26/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/26/2026M100,000(1)A$14.22376,510D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Incentive Stock Option(3)$14.2208/26/2026M100,000 (2)10/01/2030Common Stock100,000$0.00100,713(3)D
Explanation of Responses:
1. The shares received upon exercise remain subject to a lock-up period that expires at the close of business on August 31, 2026, pursuant to the lock-up agreement entered into for the Registrant's offering of common stock that closed on July 6, 2026.
2. The options are fully vested and exercisable.
3. On the Reporting Person's Form 4 dated March 15, 2021 in which this option grant was reported, incentive stock options and non-qualified stock options were reported in the aggregate. All non-qualified stock options have since been exercised, with 100,713 incentive stock options remaining.
/s/ Megan Chung, as Attorney-in-Fact for Mark Frichtl08/28/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)