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Nasdaq · USD

OUST

Ouster, Inc.

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Tapewire entity
4380
SEC CIK
0001816581
Parsed reports
323

Last 12 months

Inside the activity.

3 purchase rows · 68 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202501
Dec 202506
Jan 202601
Feb 202600
Mar 202616
Apr 2026010
May 2026224
Jun 202607
Jul 202600
Aug 202607
Sep 202606
Oct 202600

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
May 14, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 40,000 $35.00 $1,400,000.00
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · nonDerivative · entry 10

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 628,638

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

Read SEC document
May 14, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 40,000 $14.22 $568,800.00
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · nonDerivative · entry 9

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 668,638

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.

Read SEC document
May 14, 2026 Filed May 22, 2026 01:30 UTC
Jacquemet CyrilleChief Revenue Officer
SaleCommon Stock 10,000 $35.00 $350,000.00
Disclosure

SEC source: 0001193125-26-235211 · ownership.xml · nonDerivative · entry 1

Jacquemet Cyrille · CIK 0002117981 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 132,590.5

F1 · shares: Reflects shares sold pursuant to a Rule 10b5-1 plan dated June 13, 2025.

F2 · balance_after: Includes 616 shares of common stock acquired by the Reporting Person on May 15, 2026, pursuant to the Company's Amended and Restated 2022 Employee Stock Purchase Plan.

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 21,341 $0.00 Strike: $14.22 $0.00
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · derivative · entry 14

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 94,379

Underlying: Common Stock · 21,341 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.

F4 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 31,434 $0.00 Strike: $2.13 $0.00
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · derivative · entry 13

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 31,434 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.

F4 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 13,659 $34.00 $464,406.00
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · nonDerivative · entry 8

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 628,638

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

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 32,500 $33.00 $1,072,500.00
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · nonDerivative · entry 7

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 642,297

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

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 2,500 $33.00 $82,500.00
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · nonDerivative · entry 6

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 674,797

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

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 35,000 $32.00 $1,120,000.00
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · nonDerivative · entry 5

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 677,297

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

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 21,341 $34.00 $725,594.00
Disclosure

SEC source: 0001193125-26-227373 · 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.

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 21,341 $14.22 $303,469.02
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · nonDerivative · entry 3

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 733,638

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.

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 31,434 $31.09 $977,371.08
Disclosure

SEC source: 0001193125-26-227373 · 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 $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.

Read SEC document
May 13, 2026 Filed May 15, 2026 22:41 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 31,434 $2.13 $66,954.42
Disclosure

SEC source: 0001193125-26-227373 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 743,731

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.

Read SEC document
May 11, 2026 Filed May 12, 2026 20:05 UTC PurchaseCommon Stock 1,050 $25.16 $26,418.00
Disclosure

SEC source: 0001193125-26-219362 · ownership.xml · nonDerivative · entry 2

Boulet Virginia · CIK 0001202817 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 230,000

Read SEC document
May 11, 2026 Filed May 12, 2026 20:05 UTC PurchaseCommon Stock 608 $25.35 $15,412.80
Disclosure

SEC source: 0001193125-26-219362 · ownership.xml · nonDerivative · entry 1

Boulet Virginia · CIK 0001202817 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 228,950

Read SEC document
May 05, 2026 Filed May 6, 2026 21:18 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 13,451 $0.00 Strike: $2.13 $0.00
Disclosure

SEC source: 0001193125-26-209397 · ownership.xml · derivative · entry 6

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,434

Underlying: Common Stock · 13,451 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.

Read SEC document
May 05, 2026 Filed May 6, 2026 21:18 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 13,451 $30.00 $403,530.00
Disclosure

SEC source: 0001193125-26-209397 · 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.

Read SEC document
May 05, 2026 Filed May 6, 2026 21:18 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 13,451 $2.13 $28,650.63
Disclosure

SEC source: 0001193125-26-209397 · ownership.xml · nonDerivative · entry 3

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 725,748

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.

Read SEC document
May 05, 2026 Filed May 7, 2026 20:05 UTC SaleCommon Stock 5,000 $30.00 $150,000.00
Disclosure

SEC source: 0001193125-26-211862 · ownership.xml · nonDerivative · entry 1

SKAGGS STEPHEN A · CIK 0001224172 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 61,690

F1 · shares: Reflects shares sold pursuant to a Rule 10b5-1 plan dated September 8, 2025.

Read SEC document
May 04, 2026 Filed May 6, 2026 21:18 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 21,149 $0.00 Strike: $2.13 $0.00
Disclosure

SEC source: 0001193125-26-209397 · ownership.xml · derivative · entry 5

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 44,885

Underlying: Common Stock · 21,149 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 21:18 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 21,149 $30.13 $637,160.15
Disclosure

SEC source: 0001193125-26-209397 · 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 $30.00 to $30.30. 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.

Read SEC document
May 04, 2026 Filed May 6, 2026 21:18 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 21,149 $2.13 $45,047.37
Disclosure

SEC source: 0001193125-26-209397 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 733,446

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.

Read SEC document
April 22, 2026 Filed Apr 23, 2026 21:54 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 400 $0.00 Strike: $2.13 $0.00
Disclosure

SEC source: 0001193125-26-174132 · ownership.xml · derivative · entry 3

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,034

Underlying: Common Stock · 400 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.

F2 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
April 22, 2026 Filed Apr 23, 2026 21:54 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 400 $30.00 $12,000.00
Disclosure

SEC source: 0001193125-26-174132 · 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.

Read SEC document
April 22, 2026 Filed Apr 23, 2026 21:54 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 400 $2.13 $852.00
Disclosure

SEC source: 0001193125-26-174132 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 712,697

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.

Read SEC document
April 21, 2026 Filed Apr 21, 2026 22:19 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 60,000 $0.00 Strike: $2.13 $0.00
Disclosure

SEC source: 0001193125-26-167415 · ownership.xml · derivative · entry 8

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,434

Underlying: Common Stock · 60,000 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.

F6 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
April 21, 2026 Filed Apr 21, 2026 22:19 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 30,000 $29.02 $870,528.00
Disclosure

SEC source: 0001193125-26-167415 · ownership.xml · nonDerivative · entry 6

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.

F5 · price: 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.

Read SEC document
April 21, 2026 Filed Apr 21, 2026 22:19 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 30,000 $28.11 $843,333.00
Disclosure

SEC source: 0001193125-26-167415 · ownership.xml · nonDerivative · entry 5

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 742,297

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

F4 · price: 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.

Read SEC document
April 21, 2026 Filed Apr 21, 2026 22:19 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 60,000 $2.13 $127,800.00
Disclosure

SEC source: 0001193125-26-167415 · ownership.xml · nonDerivative · entry 4

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 772,297

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.

Read SEC document
April 21, 2026 Filed Apr 22, 2026 23:12 UTC SaleCommon Stock 5,000 $28.00 $140,000.00
Disclosure

SEC source: 0001193125-26-171152 · ownership.xml · nonDerivative · entry 1

SKAGGS STEPHEN A · CIK 0001224172 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,690

F1 · shares: Reflects shares sold pursuant to a Rule 10b5-1 plan dated September 8, 2025.

Read SEC document
April 20, 2026 Filed Apr 21, 2026 22:19 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 60,000 $0.00 Strike: $2.13 $0.00
Disclosure

SEC source: 0001193125-26-167415 · ownership.xml · derivative · entry 7

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 126,434

Underlying: Common Stock · 60,000 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.

F6 · derivative.exercise_date: The options are fully vested and exercisable.

Read SEC document
April 20, 2026 Filed Apr 21, 2026 22:19 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 30,000 $27.08 $812,259.00
Disclosure

SEC source: 0001193125-26-167415 · ownership.xml · nonDerivative · entry 3

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.

F3 · price: 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.

Read SEC document
April 20, 2026 Filed Apr 21, 2026 22:19 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 30,000 $26.08 $782,547.00
Disclosure

SEC source: 0001193125-26-167415 · ownership.xml · nonDerivative · entry 2

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 742,297

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 $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.

Read SEC document
April 20, 2026 Filed Apr 21, 2026 22:19 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 60,000 $2.13 $127,800.00
Disclosure

SEC source: 0001193125-26-167415 · ownership.xml · nonDerivative · entry 1

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 772,297

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.

Read SEC document
April 17, 2026 Filed Apr 17, 2026 21:58 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 30,000 $0.00 Strike: $2.13 $0.00
Disclosure

SEC source: 0001193125-26-161906 · ownership.xml · derivative · entry 3

Frichtl Mark · CIK 0001847596 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 186,434

Underlying: Common Stock · 30,000 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.

Read SEC document
April 17, 2026 Filed Apr 17, 2026 21:58 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 30,000 $25.15 $754,395.00
Disclosure

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.

Read SEC document
April 17, 2026 Filed Apr 17, 2026 21:58 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 30,000 $2.13 $63,900.00
Disclosure

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.

Read SEC document
April 16, 2026 Filed Apr 17, 2026 20:49 UTC
Chung MeganGeneral Counsel and Secretary
SaleCommon Stock 5,837 $24.70 $144,173.90
Disclosure

SEC source: 0001193125-26-161701 · ownership.xml · nonDerivative · entry 1

Chung Megan · CIK 0001966411 · General Counsel and Secretary

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 213,836

F1 · shares: Reflects sale transactions made primarily for tax planning purposes.

Read SEC document
April 15, 2026 Filed Apr 16, 2026 01:16 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 20,000 $0.00 Strike: $2.13 $0.00
Disclosure

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.

Read SEC document
April 15, 2026 Filed Apr 16, 2026 01:16 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 20,000 $24.00 $480,000.00
Disclosure

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.

Read SEC document
April 15, 2026 Filed Apr 16, 2026 01:16 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 20,000 $2.13 $42,600.00
Disclosure

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.

Read SEC document
April 14, 2026 Filed Apr 16, 2026 01:16 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionNon-Qualified Stock Option · Derivative 40,000 $0.00 Strike: $2.13 $0.00
Disclosure

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.

Read SEC document
April 14, 2026 Filed Apr 16, 2026 01:16 UTC
Frichtl MarkChief Technology Officer
SaleCommon Stock 40,000 $22.76 $910,248.00
Disclosure

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.

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April 14, 2026 Filed Apr 16, 2026 01:16 UTC
Frichtl MarkChief Technology Officer
Exercise / conversionCommon Stock 40,000 $2.13 $85,200.00
Disclosure

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.

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April 12, 2026 Filed Apr 14, 2026 22:31 UTC
Pacala Charles AngusDirector · President and CEO
GrantCommon Stock 138,376 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-155266 · ownership.xml · nonDerivative · entry 1

Pacala Charles Angus · CIK 0001848817 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,099,036

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.

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April 11, 2026 Filed Apr 14, 2026 22:37 UTC
SPENCER DARIENChief Operating Officer
GrantCommon Stock 46,125 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-155284 · ownership.xml · nonDerivative · entry 1

SPENCER DARIEN · CIK 0001226378 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 371,375

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.

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April 11, 2026 Filed Apr 14, 2026 22:28 UTC
Gianella Kenneth P.Chief Financial Officer
GrantCommon Stock 55,351 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-155256 · ownership.xml · nonDerivative · entry 1

Gianella Kenneth P. · CIK 0001677143 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 355,351

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.

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April 11, 2026 Filed Apr 14, 2026 22:28 UTC
Chung MeganGeneral Counsel and Secretary
GrantCommon Stock 46,125 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-155253 · ownership.xml · nonDerivative · entry 1

Chung Megan · CIK 0001966411 · General Counsel and Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 219,673

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.

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April 11, 2026 Filed Apr 14, 2026 22:27 UTC
Frichtl MarkChief Technology Officer
GrantCommon Stock 75,415 $0.00 $0.00
Disclosure

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.

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April 06, 2026 Filed Apr 7, 2026 20:05 UTC GrantCommon Stock 1,458 $19.31 $28,153.98
Disclosure

SEC source: 0001193125-26-145521 · ownership.xml · nonDerivative · entry 1

Heystee Susan · CIK 0001334330 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,409.7

F1 · shares: Represents shares of common stock received in lieu of cash fees pursuant to the Company's Third Amended and Restated Non-Employee Director Compensation Program.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.