Frichtl Mark

SEC source: 0001193125-26-161906 · ownership.xml · nonDerivative · entry 2

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 712,297

F1 · shares: Reflects shares sold pursuant to a Rule 10b5-1 plan dated December 15, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.30. 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.

SEC source: 0001193125-26-161906 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 742,297

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001193125-26-157549 · ownership.xml · derivative · entry 6

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 216,434

Underlying: Common Stock · 20,000 shares

Expires 2030-10-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The options are fully vested and exercisable.

SEC source: 0001193125-26-157549 · ownership.xml · nonDerivative · entry 4

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 712,297

F1 · shares: Reflects shares sold pursuant to a Rule 10b5-1 plan dated December 15, 2025. Includes sales made for tax planning purposes.

SEC source: 0001193125-26-157549 · ownership.xml · nonDerivative · entry 3

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 732,297

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001193125-26-157549 · ownership.xml · derivative · entry 5

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 236,434

Underlying: Common Stock · 40,000 shares

Expires 2030-10-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The options are fully vested and exercisable.

SEC source: 0001193125-26-157549 · ownership.xml · nonDerivative · entry 2

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 712,297

F1 · shares: Reflects shares sold pursuant to a Rule 10b5-1 plan dated December 15, 2025. Includes sales made for tax planning purposes.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.22 to $23.14. 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.

SEC source: 0001193125-26-157549 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 752,297

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001193125-26-155251 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 712,297

F1 · shares: Represents Ouster, Inc. (the "Company") restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Company's common stock. The RSUs vest as to 1/12 of the total number of RSUs on each quarterly anniversary of March 11, 2026, the vesting commencement date, subject to the reporting person's continued service through the applicable vesting date. The RSUs have no expiration date.

SEC source: 0001193125-26-129505 · ownership.xml · derivative · entry 3

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 276,434

Underlying: Common Stock · 40,000 shares

Expires 2030-10-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The options are fully vested and exercisable.

SEC source: 0001193125-26-129505 · ownership.xml · nonDerivative · entry 2

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 636,882

F1 · shares: Reflects shares sold pursuant to a Rule 10b5-1 plan dated December 15, 2025. Includes sales made for tax planning purposes.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.53 to $21.30. 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.

SEC source: 0001193125-26-129505 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 676,882

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001193125-26-108323 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 636,882

F1 · shares: 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 June 9, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.9820 to $23.4522. 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.

SEC source: 0001193125-25-320847 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 652,571

F1 · shares: 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 June 9, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.82 to $24.98663. 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 · balance_after: Includes 2,829 shares of common stock acquired by the Reporting Person on November 15, 2025, pursuant to the Company's Amended and Restated 2022 Employee Stock Purchase Plan.

SEC source: 0001193125-25-205174 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 665,403

F1 · shares: Reflects shares sold to cover withholding taxes incurred upon the vesting and settlement of restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.4299 to $29.0001. 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 · balance_after: Includes 2,611 shares of common stock acquired by the Reporting Person on May 15, 2025, pursuant to the Company's Amended and Restated 2022 Employee Stock Purchase Plan.

SEC source: 0000950170-25-049684 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 688,121

F1 · shares: Represents Ouster, Inc. (the "Company") restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Company's common stock. The RSUs vest as to 1/6th of the total number of RSUs underlying the award on each quarterly anniversary of September 11, 2025, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0000950170-24-136840 · ownership.xml · nonDerivative · entry 2

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 513,121

SEC source: 0000950170-24-136840 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 512,621

F1 · price: Represents price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $9.51 to $10.00, inclusive. The Reporting Person undertakes to provide to 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 purchased at each separate price within the range set forth above.

F2 · balance_after: Includes 3,000 shares of common stock acquired by the Reporting Person on November 15, 2024, pursuant to the Company's Amended and Restated 2022 Employee Stock Purchase Plan.

SEC source: 0000950170-24-061134 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 505,076

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $12.09 to $12.44, inclusive. The Reporting Person undertakes to provide to 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 purchased at each separate price within the range set forth above.

F2 · balance_after: Includes 3,000 shares of common stock acquired by the Reporting Person on May 15, 2024, pursuant to the Company's 2022 Employee Stock Purchase Plan.

SEC source: 0000950170-24-039729 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 494,076

F1 · shares: Represents Company shares of common stock subject to time-based restrictions on transfer ("RSAs"). Each RSA represents a contingent right to receive one share of the Company's common stock. The RSAs vest in two equal installments on December 11, 2024 and September 11, 2025, subject to the Reporting Person's continued service through the applicable vesting date.

F2 · balance_after: Includes 3,000 shares of common stock acquired by the Reporting Person on November 15, 2023, pursuant to the Company's 2022 Employee Stock Purchase Plan.

SEC source: 0000950170-23-023124 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 398,757

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.66 to $6.01, inclusive. 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 purchased at each separate price within the range set forth in this footnote.

F2 · balance_after: Includes 443 and 750 shares of common stock acquired by the Reporting Person on November 15, 2022 and May 15, 2023, respectively, pursuant to the Company's 2022 Employee Stock Purchase Plan.

F3 · balance_after: This amended Form 4 is being filed to correct the prior erroneous filing, which was not authorized by the Reporting Person.

SEC source: 0000950170-23-023017 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,749,512

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.66 to $6.01, inclusive. 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 purchased at each separate price within the range set forth in this footnote.

F2 · balance_after: Includes 4,426 and 750 shares of common stock acquired by the Reporting Person on November 15, 2022 and May 15, 2023, respectively, pursuant to the Company's 2022 Employee Stock Purchase Plan.

SEC source: 0000899243-23-009202 · doc4.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,718,636

F1 · shares: Represents Company restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Company's common stock. The RSUs vest as to 1/4 of the total number of RSUs on each quarterly anniversary of the grant date, subject to the reporting person's continued service through the applicable vesting date. The RSUs have no expiration date.

SEC source: 0000899243-21-011819 · doc4.xml · derivative · entry 3

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,164,350

Underlying: Common Stock · 3,164,350 shares

Expires 2030-10-01

F2 · shares: At the Effective Time, each outstanding option to purchase shares of Ouster Technologies common stock (each an "Ouster Technologies Option") was automatically cancelled and converted into an option to purchase a number of shares of common stock of the Issuer equal to (i) the number of shares of Ouster Technologies common stock subject to the applicable Ouster Technologies Option multiplied by (ii) the Exchange Ratio, rounded down to the nearest whole share.

F1 · price: On March 11, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of December 21, 2020, by and among the Issuer, Beam Merger Sub, Inc. ("Merger Sub") and Ouster Technologies, Inc. ("Ouster Technologies"), Merger Sub merged with and into Ouster Technologies with Ouster Technologies surviving as a wholly owned subsidiary of the Issuer (the "Merger"). Upon consummation of the Merger (the "Effective Time"), each issued and outstanding share of common stock of Ouster Technologies was automatically cancelled and converted into approximately 0.703 (the "Exchange Ratio") shares of common stock of the Issuer.

F3 · derivative.exercise_date: Represents an award of stock options on October 2, 2020, which vests in 48 monthly installments thereafter, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0000899243-21-011819 · doc4.xml · derivative · entry 2

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,164,350

Underlying: Common Stock · 3,164,350 shares

Expires 2030-10-01

F2 · shares: At the Effective Time, each outstanding option to purchase shares of Ouster Technologies common stock (each an "Ouster Technologies Option") was automatically cancelled and converted into an option to purchase a number of shares of common stock of the Issuer equal to (i) the number of shares of Ouster Technologies common stock subject to the applicable Ouster Technologies Option multiplied by (ii) the Exchange Ratio, rounded down to the nearest whole share.

F1 · price: On March 11, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of December 21, 2020, by and among the Issuer, Beam Merger Sub, Inc. ("Merger Sub") and Ouster Technologies, Inc. ("Ouster Technologies"), Merger Sub merged with and into Ouster Technologies with Ouster Technologies surviving as a wholly owned subsidiary of the Issuer (the "Merger"). Upon consummation of the Merger (the "Effective Time"), each issued and outstanding share of common stock of Ouster Technologies was automatically cancelled and converted into approximately 0.703 (the "Exchange Ratio") shares of common stock of the Issuer.

F3 · derivative.exercise_date: Represents an award of stock options on October 2, 2020, which vests in 48 monthly installments thereafter, subject to the reporting person's continued service through the applicable vesting date.

SEC source: 0000899243-21-011819 · doc4.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,343,636

F1 · price: On March 11, 2021, pursuant to that certain Agreement and Plan of Merger, dated as of December 21, 2020, by and among the Issuer, Beam Merger Sub, Inc. ("Merger Sub") and Ouster Technologies, Inc. ("Ouster Technologies"), Merger Sub merged with and into Ouster Technologies with Ouster Technologies surviving as a wholly owned subsidiary of the Issuer (the "Merger"). Upon consummation of the Merger (the "Effective Time"), each issued and outstanding share of common stock of Ouster Technologies was automatically cancelled and converted into approximately 0.703 (the "Exchange Ratio") shares of common stock of the Issuer.