# EDGAR Filing Document

**Accession Number:** 0001849056
**File Stem:** 0001193125-25-335518
**Filing Date:** 2025-12
**Character Count:** 8010
**Document Hash:** cb476a9aa96499188dfd21af88b83306
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-335518.hdr.sgml**: 20251229

**ACCESSION NUMBER**: 0001193125-25-335518

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251224

**FILED AS OF DATE**: 20251229

**DATE AS OF CHANGE**: 20251229

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** DeWitte Jacob
- **CENTRAL INDEX KEY:** 0002021433

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40583
- **FILM NUMBER:** 251610180

**MAIL ADDRESS:**
- **STREET 1:** C/O OKLO INC.
- **STREET 2:** 3190 CORONADO DR.
- **CITY:** SANTA CLARA
- **STATE:** CA
- **ZIP:** 95054
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Oklo Inc.
- **CENTRAL INDEX KEY:** 0001849056
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 3190 CORONADO DR.
- **CITY:** SANTA CLARA
- **STATE:** CA
- **ZIP:** 95054
- **BUSINESS PHONE:** 650-550-0127

**MAIL ADDRESS:**
- **STREET 1:** 3190 CORONADO DR.
- **CITY:** SANTA CLARA
- **STATE:** CA
- **ZIP:** 95054

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AltC Acquisition Corp.
- **DATE OF NAME CHANGE:** 20210303

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>DeWitte Jacob<br><sub>(Last) (First) (Middle)</sub><br>C/O OKLO INC.<br>3190 CORONADO DR.<br><sub>(Street)</sub><br>SANTA CLARA, CA 95054<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-12-24 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [X] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Co-Founder, CEO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Oklo Inc. [ OKLO ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Class A Common Stock | 2025-12-24 |  | G |  | 7851901 | D | $0 | 928197<sup>(1)</sup> | D<sup>(2)</sup> |  |
| Class A Common Stock |  |  |  |  |  |  |  | 7851901 | I<sup>(2)</sup> | By the Jacob DeWitte Family Trust |
| Class A Common Stock |  |  |  |  |  |  |  | 1000000<sup>(3)</sup> | I | By Jacob DeWitte GRAT No. 2 |
| Class A Common Stock |  |  |  |  |  |  |  | 1580000 | I | By Jacob DeWitte GRAT |
| Class A Common Stock |  |  |  |  |  |  |  | 1580000 | I | By Caroline Cochran GRAT<sup>(4)</sup> |
| Class A Common Stock | 2025-12-24 |  | G |  | 7583085 | D | $0 | 919023<sup>(5)</sup> | I<sup>(6)</sup> | By Caroline Cochran<sup>(7)</sup> |
| Class A Common Stock |  |  |  |  |  |  |  | 7583085 | I<sup>(6)</sup> | By the Caroline DeWitte Family Trust<sup>(4)</sup> |
| Class A Common Stock |  |  |  |  |  |  |  | 1000000<sup>(8)</sup> | I | By Caroline DeWitte GRAT No. 2<sup>(4)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Excludes 1,000,000 shares previously owned directly which were contributed to a grantor retained annuity trust on December 24, 2025.

(2) 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 trusteeof 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.

(3) These shares were previously reported as directly beneficially owned but were contributed to a grantor retained annuity trust on December 24, 2025.

(4) Represents securities beneficially owned by the Reporting Person's spouse.

(5) 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.

(6) 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.

(7) Represents securities held by the Reporting Person's spouse.

(8) These shares were previously reported as beneficially owned by the Reporting Person's spouse but were contributed to a grantor retained annuity trust on December 24, 2025.

**Signature:** /s/ Richard Craig Bealmear, Attorney-in-Fact  
**Date:** 2025-12-29

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**