# EDGAR Filing Document

**Accession Number:** 0002021433
**File Stem:** 0001104659-25-065328
**Filing Date:** 2025-7
**Character Count:** 9410
**Document Hash:** ce0f8e01a9e74be81fec6bdca9679302
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-065328.hdr.sgml**: 20250702

**ACCESSION NUMBER**: 0001104659-25-065328

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250702

**DATE AS OF CHANGE**: 20250702

**SUBJECT COMPANY**: 

**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

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-92698
- **FILM NUMBER:** 251101662

**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
**FILED BY**: 

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

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

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

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 4)**

**Oklo Inc.**

*(Name of Issuer)*

**Class A Common Stock, par value $0.0001 per share**

*(Title of Class of Securities)*

**02156V109**

*(CUSIP Number)*

**Jacob DeWitte, c/o Oklo Inc.**<br>3190 Coronado Drive<br>Santa Clara CA 95054<br>(844) 200-3276

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**06/30/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **02156V109** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Jacob DeWitte** | Name of reporting person<br>**Jacob DeWitte** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**23907206.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**23907206.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**23907206.00** | Aggregate amount beneficially owned by each reporting person<br>**23907206.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**16.2%** | Percent of class represented by amount in Row (11)<br>**16.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

| **CUSIP No.** | **02156V109** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Caroline Cochran** | Name of reporting person<br>**Caroline Cochran** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**23907206.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**23907206.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**23907206.00** | Aggregate amount beneficially owned by each reporting person<br>**23907206.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**16.2%** | Percent of class represented by amount in Row (11)<br>**16.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Class A Common Stock, par value $0.0001 per share

**(b) Name of Issuer:**
Oklo Inc.

**(c) Address of Issuer's Principal Executive Offices:**
3190 Coronado Drive, Santa Clara, CA, 95054

This Amendment No. 4 to Schedule 13D (this "Amendment No. 4") amends and supplements the statement on Schedule 13D filed with the United States Securities and Exchange Commission on May 16, 2024 (as amended to date, the "Schedule 13D"), relating to the Class A common stock, par value $0.0001 per share (the " Class A Common Stock"), of Oklo Inc., a Delaware corporation (the "Issuer"). Capitalized terms used herein without definition shall have the meaning set forth in the Schedule 13D.

**Item 5. Interest in Securities of the Issuer**

**(a)**
Item 5 of the Schedule 13D is hereby amended and restated in its entirety as follows:

The information contained on the cover pages is incorporated by reference to this Item 5.

The Reporting Persons may be deemed to beneficially own an aggregate of 23,907,206 shares of Class A Common Stock, representing 16.2% of the Class A Common Stock outstanding based upon 147,380,826 shares of Class A Common Stock outstanding as of June 13, 2025, as set forth in the Issuer's Prospectus Supplement filed with the Securities and Exchange Commission on June 13, 2025.

**(b)**
The information contained on the cover pages is incorporated by reference to this Item 5.

The amounts reflected in the cover pages consist of (i) 10,105,098 shares of Class A Common Stock held of record by Mr. DeWitte, (ii) 9,802,108 shares of Class A Common Stock held of record by Ms. Cochran; (iii) 2,000,000 shares of Class A Common Stock held of record by Mr. DeWitte's GRAT; and (iv)  2,000,000 shares of Class A Common Stock held of record by Ms. Cochran's GRAT. The amounts reported herein do not include any vested RSUs which are not expected to settle within 60 days of the date of this filing. Mr. DeWitte and Ms. Cochran are married and, as a result, may be deemed to share beneficial ownership of each other's securities.

**(c)**
On May 29, 2025, the Reporting Persons gifted an aggregate of 200,000 shares of Class A   Common Stock for no consideration. On June 24, 2025, the Reporting Persons gifted an aggregate   of 600,000 shares of Class A Common Stock for no consideration.

On June 30, 2025, the Reporting Persons disposed of an aggregate of 600,000 shares of Class A Common Stock at a weighted average price of $55.1973 per share in a series of open-market transactions pursuant to their 10b5-1 Trading Plan entered into on March 31, 2025. The Reporting Persons undertake to provide, upon request by the staff of the SEC, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price for each transaction.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Jacob DeWitte

**Signature:** /s/ Richard Craig Bealmear

**Name/Title:** Richard Craig Bealmear, Attorney-in-Fact

**Date:** 07/02/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Caroline Cochran

**Signature:** /s/ Richard Craig Bealmear

**Name/Title:** Richard Craig Bealmear, Attorney-in-Fact

**Date:** 07/02/2025