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person · Reporting owner

DeWitte Jacob

Disclosed activity across 1 company

Tapewire entity
594
SEC CIK
0002021433

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Oklo Inc.OKLO · Entity 593Director · Co-Founder, CEO · 10% ownerOctober 01, 2026October 05, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Oklo Inc.

Report date October 01, 2026 · Filed October 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeDirect391,533 Reported balance After 2026-10-01 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-10-01 · Sale · Disposed 40,000 · Balance 391,533

F1: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.05-$36.28 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 sold at each separate price within the range set forth herein.

F3: For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

Class A Common StockSEC Table I · non-derivativeIndirectBy Jacob DeWitte GRAT476,483 Reported balance After 2026-10-01 transaction · row 2 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 2 · 2026-10-01 · Sale · Disposed 20,000 · Balance 476,483

F1: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.28-$36.39 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 sold at each separate price within the range set forth herein.

F3: For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

Class A Common StockSEC Table I · non-derivativeIndirectBy Caroline Cochran358,039 Reported balance After 2026-10-01 transaction · row 6 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 6 · 2026-10-01 · Sale · Disposed 40,000 · Balance 358,039

F1: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.39-$36.87 inclusive. The Reporting Person's spouse 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 sold at each separate price within the range set forth herein.

F6: For more information about the equity of the Issuer held by the Reporting Person's spouse, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

F7: Represents securities held by the Reporting Person's spouse.

Class A Common StockSEC Table I · non-derivativeIndirectBy Caroline Cochran GRAT509,479 Reported balance After 2026-10-01 transaction · row 7 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 7 · 2026-10-01 · Sale · Disposed 20,000 · Balance 509,479

F1: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.87-$37.50 inclusive. The Reporting Person's spouse 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 sold at each separate price within the range set forth herein.

F6: For more information about the equity of the Issuer held by the Reporting Person's spouse, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

F9: Represents securities beneficially owned by the Reporting Person's spouse.

Class A Common StockSEC Table I · non-derivativeIndirectBy the Jacob DeWitte Family Trust7,851,901 Reported balance Holding disclosure · report date 2026-10-01 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 7,851,901

F3: For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

Class A Common StockSEC Table I · non-derivativeIndirectBy Jacob DeWitte GRAT No. 21,000,000 Reported balance Holding disclosure · report date 2026-10-01 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 1,000,000

F3: For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

Class A Common StockSEC Table I · non-derivativeIndirectBy Jacob DeWitte GRAT No. 3506,807 Reported balance Holding disclosure · report date 2026-10-01 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 506,807

F3: For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

Class A Common StockSEC Table I · non-derivativeIndirectBy the Caroline DeWitte Family Trust7,583,085 Reported balance Holding disclosure · report date 2026-10-01 · row 8 Holding and transaction disclosures are not merged.
1 source row

Row 8 · Balance 7,583,085

F6: For more information about the equity of the Issuer held by the Reporting Person's spouse, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

F9: Represents securities beneficially owned by the Reporting Person's spouse.

Class A Common StockSEC Table I · non-derivativeIndirectBy Caroline DeWitte GRAT No. 21,000,000 Reported balance Holding disclosure · report date 2026-10-01 · row 9 Holding and transaction disclosures are not merged.
1 source row

Row 9 · Balance 1,000,000

F6: For more information about the equity of the Issuer held by the Reporting Person's spouse, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

F9: Represents securities beneficially owned by the Reporting Person's spouse.

Class A Common StockSEC Table I · non-derivativeIndirectBy Caroline Cochran GRAT No.3474,011 Reported balance Holding disclosure · report date 2026-10-01 · row 10 Holding and transaction disclosures are not merged.
1 source row

Row 10 · Balance 474,011

F6: For more information about the equity of the Issuer held by the Reporting Person's spouse, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

F9: Represents securities beneficially owned by the Reporting Person's spouse.

Filing footnotes · ownership attribution and instrument terms

F1: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.05-$36.28 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 sold at each separate price within the range set forth herein.

F3: For more information about the equity of the Issuer held by the Reporting Person, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

F4: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.28-$36.39 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 sold at each separate price within the range set forth herein.

F5: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.39-$36.87 inclusive. The Reporting Person's spouse 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 sold at each separate price within the range set forth herein.

F6: For more information about the equity of the Issuer held by the Reporting Person's spouse, please see the Issuer's most recent definitive proxy statement filed with the Securities and Exchange Commission.

F7: Represents securities held by the Reporting Person's spouse.

F8: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.87-$37.50 inclusive. The Reporting Person's spouse 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 sold at each separate price within the range set forth herein.

F9: Represents securities beneficially owned by the Reporting Person's spouse.

Transaction history

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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 dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
January 07, 2026 Filed Jan 9, 2026 23:02 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 34,580 $97.92 $3,386,035.56
Disclosure

SEC source: 0001193125-26-009194 · ownership.xml · nonDerivative · entry 5

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 879,287

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $97.29 - $98.29, 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 sold at each separate price within the range set forth herein.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 23:02 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 5,608 $96.99 $543,918.80
Disclosure

SEC source: 0001193125-26-009194 · ownership.xml · nonDerivative · entry 4

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 913,867

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $96.28 - $97.28, 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 sold at each separate price within the range set forth herein.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 23:02 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 4,387 $95.76 $420,095.61
Disclosure

SEC source: 0001193125-26-009194 · ownership.xml · nonDerivative · entry 3

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 919,475

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $95.24 - $96.24, 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 sold at each separate price within the range set forth herein.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 23:02 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 1,214 $94.52 $114,749.10
Disclosure

SEC source: 0001193125-26-009194 · ownership.xml · nonDerivative · entry 2

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 923,862

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $94.19 - $94.97, 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 sold at each separate price within the range set forth herein.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 23:02 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 3,121 $93.79 $292,710.48
Disclosure

SEC source: 0001193125-26-009194 · ownership.xml · nonDerivative · entry 1

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 925,076

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $93.15 - $94.14, 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 sold at each separate price within the range set forth herein.

Read SEC document
January 05, 2026 Filed Jan 7, 2026 00:06 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 100,000 $90.29 $9,029,100.00
Disclosure

SEC source: 0001193125-26-004988 · ownership.xml · nonDerivative · entry 8

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran GRAT

Disclosed balance after: 1,480,000

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $90.00 to $90.75, 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 sold at each separate price within the range set forth herein.

F4 · ownership.nature: Represents securities beneficially owned by the Reporting Person's spouse.

Read SEC document
January 05, 2026 Filed Jan 7, 2026 00:06 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 100,000 $90.29 $9,029,100.00
Disclosure

SEC source: 0001193125-26-004988 · ownership.xml · nonDerivative · entry 4

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Jacob DeWitte GRAT

Disclosed balance after: 1,480,000

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $90.00 to $90.75, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 24, 2025 Filed Dec 29, 2025 22:16 UTC Oklo Inc. OKLO · Entity 593 GiftClass A Common Stock 7,583,085 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-335518 · ownership.xml · nonDerivative · entry 6

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 919,023

F5 · balance_after: Excludes 1,000,000 shares previously owned by the Reporting Person's spouse which were contributed to a grantor retained annuity trust on December 24, 2025.

F6 · ownership.direct: On December 24, 2025, spouse of the Reporting Person transferred 7,583,085 shares to the Caroline DeWitte Family Trust for no consideration. Spouse of the Reporting Person is trustee of the trust. Spouse of the Reporting Person, members of her family and certain charitable organizations are the beneficiaries of the trust. Spouse of the Reporting Person remains the beneficial owner of the securities held by the trust.

F7 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
December 24, 2025 Filed Dec 29, 2025 22:16 UTC Oklo Inc. OKLO · Entity 593 GiftClass A Common Stock 7,851,901 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-335518 · ownership.xml · nonDerivative · entry 1

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 928,197

F1 · balance_after: Excludes 1,000,000 shares previously owned directly which were contributed to a grantor retained annuity trust on December 24, 2025.

F2 · ownership.direct: On December 24, 2025, the Reporting Person transferred 7,851,901 shares to the Jacob DeWitte Family Trust for no consideration. The Reporting Person is trustee of the trust. The Reporting Person, members of his family and certain charitable organizations are the beneficiaries of the trust. The Reporting Person remains the beneficial owner of the securities held by the trust.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 1,644 $85.70 $140,894.91
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 14

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran GRAT

Disclosed balance after: 1,580,000

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.21 to $85.73, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 11,089 $84.55 $937,607.11
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 13

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran GRAT

Disclosed balance after: 1,581,644

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.20 to $85.20, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 42,653 $83.56 $3,563,999.37
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 12

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran GRAT

Disclosed balance after: 1,592,733

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.19 to $84.19, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 191,284 $82.61 $15,802,124.27
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 11

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran GRAT

Disclosed balance after: 1,635,386

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $82.18 to $83.18, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 142,696 $81.67 $11,654,267.71
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 10

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran GRAT

Disclosed balance after: 1,826,670

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $81.17 to $82.17, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 30,634 $80.84 $2,476,385.17
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 9

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran GRAT

Disclosed balance after: 1,969,366

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $80.16 to $81.16, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 1,643 $85.70 $140,809.21
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 8

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Jacob DeWitte GRAT

Disclosed balance after: 1,580,000

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.21 to $85.73, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 11,090 $84.55 $937,691.66
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 7

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Jacob DeWitte GRAT

Disclosed balance after: 1,581,643

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.20 to $85.20, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 42,653 $83.56 $3,563,999.37
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 6

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Jacob DeWitte GRAT

Disclosed balance after: 1,592,733

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $83.19 to $84.19, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 191,284 $82.61 $15,802,124.27
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 5

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Jacob DeWitte GRAT

Disclosed balance after: 1,635,386

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $82.18 to $83.18, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 142,695 $81.67 $11,654,186.04
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 4

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Jacob DeWitte GRAT

Disclosed balance after: 1,826,670

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $81.17 to $82.17, 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 sold at each separate price within the range set forth herein.

Read SEC document
December 22, 2025 Filed Dec 24, 2025 02:31 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 30,635 $80.84 $2,476,466.00
Disclosure

SEC source: 0001193125-25-331311 · ownership.xml · nonDerivative · entry 3

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Jacob DeWitte GRAT

Disclosed balance after: 1,969,365

F2 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $80.16 to $81.16, 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 sold at each separate price within the range set forth herein.

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December 22, 2025 Filed Feb 18, 2026 02:12 UTC Oklo Inc. OKLO · Entity 593 GrantRestricted Stock Units · Derivative 15,574 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-055641 · ownership.xml · derivative · entry 2

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 15,574

Underlying: Class A Common Stock · 15,574 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F3 · derivative.exercise_date: On December 22, 2025, the Reporting Person's spouse was granted 15,574 RSUs, vesting in three substantially equal annual installments beginning on December 31, 2025.

F3 · derivative.expiration_date: On December 22, 2025, the Reporting Person's spouse was granted 15,574 RSUs, vesting in three substantially equal annual installments beginning on December 31, 2025.

F4 · ownership.nature: Represents securities held by the Reporting Person's spouse.

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December 22, 2025 Filed Feb 18, 2026 02:12 UTC Oklo Inc. OKLO · Entity 593 GrantRestricted Stock Units · Derivative 71,811 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-055641 · ownership.xml · derivative · entry 1

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,811

Underlying: Class A Common Stock · 71,811 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2 · derivative.exercise_date: On December 22, 2025, the Reporting Person was granted 71,811 RSUs, vesting in three substantially equal annual installments beginning on December 31, 2025.

F2 · derivative.expiration_date: On December 22, 2025, the Reporting Person was granted 71,811 RSUs, vesting in three substantially equal annual installments beginning on December 31, 2025.

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September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 200 $116.82 $23,363.50
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 16

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,502,108

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $116.80 to $116.85, 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 sold at each separate price within the range set forth herein.

F10 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 6,880 $116.15 $799,137.46
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 15

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,502,308

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.75 to $116.75, 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 sold at each separate price within the range set forth herein.

F10 · ownership.nature: Represents securities held by the Reporting Person's spouse.

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September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 21,792 $115.21 $2,510,708.62
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 14

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,509,188

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $114.72 to $115.72, 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 sold at each separate price within the range set forth herein.

F10 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 17,928 $114.07 $2,044,993.18
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 13

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,530,980

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $113.69 to $114.69, 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 sold at each separate price within the range set forth herein.

F10 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 48,873 $113.07 $5,526,118.98
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 12

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,548,908

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $112.68 to $113.68, 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 sold at each separate price within the range set forth herein.

F10 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 110,065 $112.14 $12,342,193.81
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 11

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,597,781

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $111.67 to $112.67, 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 sold at each separate price within the range set forth herein.

F10 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 42,035 $111.14 $4,671,832.95
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 10

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,707,846

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $110.66 to $111.66, 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 sold at each separate price within the range set forth herein.

F10 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 52,227 $110.30 $5,760,700.77
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 9

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,749,881

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $109.65 to $110.65, 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 sold at each separate price within the range set forth herein.

F10 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 200 $116.82 $23,363.50
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 8

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,780,098

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $116.80 to $116.85, 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 sold at each separate price within the range set forth herein.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 6,880 $116.15 $799,137.46
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 7

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,780,298

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.75 to $116.75, 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 sold at each separate price within the range set forth herein.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 21,792 $115.21 $2,510,708.62
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 6

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,787,178

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $114.72 to $115.72, 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 sold at each separate price within the range set forth herein.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 17,927 $114.07 $2,044,879.11
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 5

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,808,970

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $113.69 to $114.69, 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 sold at each separate price within the range set forth herein.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 48,873 $113.07 $5,526,118.98
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 4

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,826,897

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $112.68 to $113.68, 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 sold at each separate price within the range set forth herein.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 110,066 $112.14 $12,342,305.94
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 3

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,875,770

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $111.67 to $112.67, 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 sold at each separate price within the range set forth herein.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 42,034 $111.14 $4,671,721.81
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 2

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,985,836

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $110.66 to $111.66, 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 sold at each separate price within the range set forth herein.

Read SEC document
September 30, 2025 Filed Oct 2, 2025 21:40 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 52,228 $110.30 $5,760,811.07
Disclosure

SEC source: 0001193125-25-228702 · ownership.xml · nonDerivative · entry 1

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,027,870

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $109.65 to $110.65, 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 sold at each separate price within the range set forth herein.

Read SEC document
September 22, 2025 Filed Sep 25, 2025 00:19 UTC Oklo Inc. OKLO · Entity 593 GiftClass A Common Stock 25,000 $121.84 $3,046,112.50
Disclosure

SEC source: 0001193125-25-216139 · ownership.xml · nonDerivative · entry 1

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,080,098

F1 · shares: This filing relates to a gift of 25,000 shares of Class A Common Stock to a donor advised fund.

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June 30, 2025 Filed Jul 2, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 2,636 $56.95 $150,119.41
Disclosure

SEC source: 0001104659-25-065329 · tm2519732-2_4seq1.xml · nonDerivative · entry 8

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,802,108

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $56.86 to $57.20, 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 sold at each separate price within the range set forth herein.

F6 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 57,470 $56.09 $3,223,222.19
Disclosure

SEC source: 0001104659-25-065329 · tm2519732-2_4seq1.xml · nonDerivative · entry 7

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,804,744

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $55.85 to $56.85, 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 sold at each separate price within the range set forth herein.

F6 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 129,430 $55.32 $7,159,847.57
Disclosure

SEC source: 0001104659-25-065329 · tm2519732-2_4seq1.xml · nonDerivative · entry 6

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,862,214

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $54.84 to $55.84, 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 sold at each separate price within the range set forth herein.

F6 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 110,464 $54.55 $6,025,987.94
Disclosure

SEC source: 0001104659-25-065329 · tm2519732-2_4seq1.xml · nonDerivative · entry 5

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 9,991,644

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $53.83 to $54.83, 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 sold at each separate price within the range set forth herein.

F6 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 2,637 $56.95 $150,176.36
Disclosure

SEC source: 0001104659-25-065329 · tm2519732-2_4seq1.xml · nonDerivative · entry 4

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,105,098

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $56.86 to $57.20, 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 sold at each separate price within the range set forth herein.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 57,471 $56.09 $3,223,278.28
Disclosure

SEC source: 0001104659-25-065329 · tm2519732-2_4seq1.xml · nonDerivative · entry 3

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,107,735

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $55.85 to $56.85, 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 sold at each separate price within the range set forth herein.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 129,429 $55.32 $7,159,792.25
Disclosure

SEC source: 0001104659-25-065329 · tm2519732-2_4seq1.xml · nonDerivative · entry 2

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,165,206

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $54.84 to $55.84, 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 sold at each separate price within the range set forth herein.

Read SEC document
June 30, 2025 Filed Jul 2, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 SaleClass A Common Stock 110,463 $54.55 $6,025,933.39
Disclosure

SEC source: 0001104659-25-065329 · tm2519732-2_4seq1.xml · nonDerivative · entry 1

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,294,635

F1 · kind: The sales reported herein were effected pursuant to a Rule 10b5-1 plan adopted on March 31, 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 $53.83 to $54.83, 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 sold at each separate price within the range set forth herein.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 GiftClass A Common Stock 300,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-063063 · tm2519222-2_4seq1.xml · nonDerivative · entry 2

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Caroline Cochran

Disclosed balance after: 10,102,108

F1 · shares: This filing relates to a gift of 600,000 shares of Class A Common Stock to a donor advised fund as permitted by the lock-up agreement between the Reporting Person and Goldman Sachs & Co. LLC and BofA Securities, Inc., as representatives of the several underwriters dated June 12, 2025 (the "Lock-Up Agreement").

F2 · ownership.nature: Represents securities held by the Reporting Person's spouse.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 20:30 UTC Oklo Inc. OKLO · Entity 593 GiftClass A Common Stock 300,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-25-063063 · tm2519222-2_4seq1.xml · nonDerivative · entry 1

DeWitte Jacob · CIK 0002021433 · Director · Co-Founder, CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,405,098

F1 · shares: This filing relates to a gift of 600,000 shares of Class A Common Stock to a donor advised fund as permitted by the lock-up agreement between the Reporting Person and Goldman Sachs & Co. LLC and BofA Securities, Inc., as representatives of the several underwriters dated June 12, 2025 (the "Lock-Up Agreement").

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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.