=== SEC Form 4 — Statement of Changes in Beneficial Ownership ===
Document Type: 4
Period of Report: 2026-03-30
10b5-1 Pre-arranged Plan: No
--- Issuer ---
Name: Oklo Inc. (OKLO)
CIK: 0001849056
--- Reporting Owner ---
Name: Cochran Caroline
CIK: 0002021786
Role: Director, Officer (Co-Founder, COO), 10%+ Owner
--- Non-Derivative Transactions ---
[Transaction #1]
Security: Class A Common Stock
Date: 2026-03-30 | Code: J (Other acquisition/disposition)
Shares: +474,011 | Price: $0.00
Shares Owned After: 7,583,085 | Ownership: I (Indirect) | Nature: By the Caroline DeWitte Family Trust
Footnotes:
[F1] On March 30, 2026, 474,011 shares were distributed to the Caroline DeWitte Family Trust as an annuity distribution pursuant to the terms of the Caroline Cochran GRAT, the Reporting Person's grantor retained annuity trust. On March 31, 2026, the same 474,011 shares held by the Caroline DeWitte Family Trust were contributed to the Caroline DeWitte GRAT No.3 in connection with the funding of the Caroline DeWitte GRAT No. 3
[F2] 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.
[Transaction #2]
Security: Class A Common Stock
Date: 2026-03-31 | Code: J (Other acquisition/disposition)
Shares: +474,011 | Price: $0.00
Shares Owned After: 474,011 | Ownership: I (Indirect) | Nature: By Caroline DeWitt GRAT No. 3
Footnotes:
[F1] On March 30, 2026, 474,011 shares were distributed to the Caroline DeWitte Family Trust as an annuity distribution pursuant to the terms of the Caroline Cochran GRAT, the Reporting Person's grantor retained annuity trust. On March 31, 2026, the same 474,011 shares held by the Caroline DeWitte Family Trust were contributed to the Caroline DeWitte GRAT No.3 in connection with the funding of the Caroline DeWitte GRAT No. 3
[F2] 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.
[Transaction #3]
Security: Class A Common Stock
Date: 2026-03-30 | Code: J (Other acquisition/disposition)
Shares: +506,807 | Price: $0.00
Shares Owned After: 7,851,901 | Ownership: I (Indirect) | Nature: By the Jacob DeWitte Family Trust
Footnotes:
[F3] On March 30, 2026, 506,807 shares were distributed to the Jacob DeWitte Family Trust as an annuity distribution pursuant to the terms of the Jacob DeWitte GRAT, the Reporting Person's spouse's grantor retained annuity trust. On March 31, 2026, the same 506,807 shares held by the Jacob DeWitte Family Trust were contributed to the Jacob DeWitte GRAT No. 3 in connection with the funding of the Jacob DeWitte GRAT No. 3.
[F4] Represents securities beneficially owned by the Reporting Person's spouse.
[Transaction #4]
Security: Class A Common Stock
Date: 2026-03-31 | Code: J (Other acquisition/disposition)
Shares: +506,807 | Price: $0.00
Shares Owned After: 506,807 | Ownership: I (Indirect) | Nature: By Jacob DeWitte GRAT No.3
Footnotes:
[F3] On March 30, 2026, 506,807 shares were distributed to the Jacob DeWitte Family Trust as an annuity distribution pursuant to the terms of the Jacob DeWitte GRAT, the Reporting Person's spouse's grantor retained annuity trust. On March 31, 2026, the same 506,807 shares held by the Jacob DeWitte Family Trust were contributed to the Jacob DeWitte GRAT No. 3 in connection with the funding of the Jacob DeWitte GRAT No. 3.
[F4] Represents securities beneficially owned by the Reporting Person's spouse.
--- Holdings ---
[Holding #1]
Security: Class A Common Stock
Ownership: D (Direct)
Footnotes:
[F2] 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.
[Holding #2]
Security: Class A Common Stock
Ownership: I (Indirect)
Footnotes:
[F2] 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.
[Holding #3]
Security: Class A Common Stock
Ownership: I (Indirect)
Footnotes:
[F2] 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.
[Holding #4]
Security: Class A Common Stock
Ownership: I (Indirect)
Footnotes:
[F5] Represents securities held by the Reporting Person's spouse.
[Holding #5]
Security: Class A Common Stock
Ownership: I (Indirect)
Footnotes:
[F4] Represents securities beneficially owned by the Reporting Person's spouse.
[Holding #6]
Security: Class A Common Stock
Ownership: I (Indirect)
Footnotes:
[F4] Represents securities beneficially owned by the Reporting Person's spouse.
--- Footnotes (Complete Index) ---
F1: On March 30, 2026, 474,011 shares were distributed to the Caroline DeWitte Family Trust as an annuity distribution pursuant to the terms of the Caroline Cochran GRAT, the Reporting Person's grantor retained annuity trust. On March 31, 2026, the same 474,011 shares held by the Caroline DeWitte Family Trust were contributed to the Caroline DeWitte GRAT No.3 in connection with the funding of the Caroline DeWitte GRAT No. 3
F2: 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.
F3: On March 30, 2026, 506,807 shares were distributed to the Jacob DeWitte Family Trust as an annuity distribution pursuant to the terms of the Jacob DeWitte GRAT, the Reporting Person's spouse's grantor retained annuity trust. On March 31, 2026, the same 506,807 shares held by the Jacob DeWitte Family Trust were contributed to the Jacob DeWitte GRAT No. 3 in connection with the funding of the Jacob DeWitte GRAT No. 3.
F4: Represents securities beneficially owned by the Reporting Person's spouse.
F5: Represents securities held by the Reporting Person's spouse.
--- Signature ---
/s/ /s/ Richard Craig Bealmear, Attorney-in-Fact (2026-04-01)
