Oklo's three largest insider shareholders as of April 22, 2026 are Caroline Cochran (Co Founder, Coo, 16.42Mn shares), Jacob Dewitte (Co Founder, Ceo, 16.42Mn shares), Samuel H. Altman (Director, 3.73Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Jacob Dewitte | Co Founder, Ceo | 0 | 16,415,804 | 01 Apr, 2026 |
| Caroline Cochran | Co Founder, Coo | 0 | 16,415,804 | 01 Apr, 2026 |
| Samuel H. Altman | - | 0 | 3,732,479 | 21 Nov, 2024 |
| Caroline Cochran | Co Founder, Coo | 658,039 | 2,037,495 | 03 Apr, 2026 |
| Jacob Dewitte | Co Founder, Ceo | 691,533 | 2,004,001 | 03 Apr, 2026 |
| Richard Craig Bealmear | Chief Financial Officer | 391,762 | 0 | 03 Apr, 2026 |
| Michael Stuart Klein | - | 0 | 200,000 | 25 Jun, 2025 |
| Michael Stuart Klein | - | 0 | 150,000 | 24 Sep, 2025 |
| William Carroll Murphy Goodwin | Chief Legal Strategy Officer | 26,037 | 0 | 25 Mar, 2026 |
| Patrick Joseph Schweiger | Chief Technology Officer | 19,430 | 0 | 25 Mar, 2026 |
| Richard Kinzley | - | 0 | 15,754 | 30 Mar, 2026 |
| John M Jansen | - | 12,354 | 0 | 30 Mar, 2026 |
| Richard Kinzley | - | 3,800 | 0 | 12 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 13,473 | $48.41 | 704,566 | D | S |
| 01 Apr, 2026 | Richard Craig Bealmear | Class A Common Stock | A | 16,342 | $3.18 | 402,350 | D | M |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 13,473 | $48.41 | 738,060 | D | S |
| 01 Apr, 2026 | Richard Craig Bealmear | Class A Common Stock | D | 16,342 | $51.08 | 386,008 | D | S |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 10,516 | $49.58 | 727,544 | D | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 10,516 | $49.58 | 694,050 | D | S |
| 02 Apr, 2026 | Richard Craig Bealmear | Class A Common Stock | A | 5,754 | $3.18 | 391,762 | D | M |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 9,068 | $50.93 | 718,476 | D | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 9,068 | $50.93 | 684,982 | D | S |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 26,943 | $51.20 | 691,533 | D | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 26,943 | $51.20 | 658,039 | D | S |
| 01 Apr, 2026 | Richard Craig Bealmear | Stock Options | D | 16,342 | $0.00 | 830,253 | D | M |
| 02 Apr, 2026 | Richard Craig Bealmear | Stock Options | D | 5,754 | $0.00 | 824,499 | D | M |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 40,000 | $50.50 | 656,483 | I | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 40,000 | $50.50 | 689,479 | I | S |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 13,473 | $48.41 | 704,566 | I | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 13,473 | $48.41 | 738,060 | I | S |
| 01 Apr, 2026 | Jacob Dewitte | Class A Common Stock | D | 10,516 | $49.58 | 694,050 | I | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 10,516 | $49.58 | 727,544 | I | S |
| 01 Apr, 2026 | Caroline Cochran | Class A Common Stock | D | 9,068 | $50.93 | 718,476 | I | S |