Oklo Inc. (OKLO) has 12 known insider and institutional holders on record. The largest holder is Cochran Caroline with 656,483 shares. Other notable holders include DeWitte Jacob and Altman Samuel H..
Over the last 12 months, insiders have made 80 transactions in OKLO stock — 17 buys (valued at $327.85K) and 42 sells (valued at $85.19M). Insider selling has exceeded buying during this period.
OKLO Insider Ownership
Top Holder
Cochran Caroline
656,483 shares
Buys (12 mo)
17
$327.85K value
Sells (12 mo)
42
$85.19M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Cochran Caroline |
10 Percent Owner, Officer: Co-founder, COO |
656,483 |
2026-04-03 |
|
| 2 |
Dewitte Jacob |
10 Percent Owner, Officer: Co-founder, CEO |
656,483 |
2026-04-03 |
|
| 3 |
Altman Samuel H. |
Director |
581,131 |
2024-05-13 |
|
| 4 |
Bealmear Richard Craig |
Chief Financial Officer |
386,008 |
2026-04-03 |
|
| 5 |
Klein Michael Stuart |
10 Percent Owner |
150,000 |
2025-09-24 |
|
| 6 |
Poneman Daniel B |
Director |
37,000 |
2025-03-07 |
|
| 7 |
Goodwin William Carroll Murphy |
Chief Legal & Strategy Officer |
36,676 |
2026-03-26 |
|
| 8 |
Schweiger Patrick Joseph |
Chief Technology Officer |
24,991 |
2026-03-26 |
|
| 9 |
Wright Christopher A |
Director |
16,854 |
2024-07-12 |
|
| 10 |
Kinzley Richard |
Director |
15,754 |
2026-03-30 |
|
| 11 |
Jansen John M |
Director |
12,354 |
2026-03-30 |
|
| 12 |
Thompson Michael N. Jr. |
Director |
3,446 |
2025-03-06 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-04-01 |
Cochran Caroline |
10 Percent Owner, Officer: Co-founder, COO |
Informative Sell |
40,000 |
$50.50 |
$2.02M |
| 2026-04-01 |
Dewitte Jacob |
10 Percent Owner, Officer: Co-founder, CEO |
Informative Sell |
40,000 |
$50.50 |
$2.02M |
| 2026-04-02 |
Bealmear Richard Craig |
Chief Financial Officer |
Option Exercise |
5,754 |
$3.18 |
$18.3K |
| 2026-04-01 |
Bealmear Richard Craig |
Chief Financial Officer |
Informative Sell |
16,342 |
$51.08 |
$834.75K |
| 2026-03-31 |
Cochran Caroline |
10 Percent Owner, Officer: Co-founder, COO |
Other (Buy) |
474,011 |
- |
- |
| 2026-03-30 |
Cochran Caroline |
10 Percent Owner, Officer: Co-founder, COO |
Other (Buy) |
474,011 |
- |
- |
| 2026-03-31 |
Dewitte Jacob |
10 Percent Owner, Officer: Co-founder, CEO |
Other (Buy) |
474,011 |
- |
- |
| 2026-03-30 |
Dewitte Jacob |
10 Percent Owner, Officer: Co-founder, CEO |
Other (Buy) |
474,011 |
- |
- |
| 2026-03-27 |
Jansen John M |
Director |
Informative Sell |
10,500 |
$51.52 |
$540.96K |
| 2026-03-27 |
Kinzley Richard |
Director |
Gift (Given) |
900 |
- |
- |
| 2026-03-25 |
Schweiger Patrick Joseph |
Chief Technology Officer |
Informative Sell |
5,561 |
$56.48 |
$314.09K |
| 2026-03-24 |
Schweiger Patrick Joseph |
Chief Technology Officer |
Option Exercise |
12,882 |
- |
- |
| 2026-03-25 |
Goodwin William Carroll Murphy |
Chief Legal & Strategy Officer |
Informative Sell |
10,639 |
$56.48 |
$600.89K |
| 2026-03-24 |
Goodwin William Carroll Murphy |
Chief Legal & Strategy Officer |
Option Exercise |
20,685 |
- |
- |
| 2026-03-13 |
Cochran Caroline |
10 Percent Owner, Officer: Co-founder, COO |
Informative Sell |
44,828 |
$60.00 |
$2.69M |
| 2026-03-12 |
Cochran Caroline |
10 Percent Owner, Officer: Co-founder, COO |
Option Exercise (Sell) |
5,191 |
- |
- |
| 2026-03-13 |
Dewitte Jacob |
10 Percent Owner, Officer: Co-founder, CEO |
Informative Sell |
44,828 |
$60.00 |
$2.69M |
| 2026-03-12 |
Dewitte Jacob |
10 Percent Owner, Officer: Co-founder, CEO |
Option Exercise (Sell) |
23,937 |
- |
- |
| 2026-03-13 |
Bealmear Richard Craig |
Chief Financial Officer |
Informative Sell |
72,090 |
$60.00 |
$4.33M |
| 2026-03-12 |
Bealmear Richard Craig |
Chief Financial Officer |
Option Exercise (Sell) |
80,000 |
- |
- |
| 2026-03-10 |
Kinzley Richard |
Director |
Other (Sell) |
16,854 |
- |
- |
| 2026-03-06 |
Schweiger Patrick Joseph |
Chief Technology Officer |
Tax Withholding of RSU |
1,280 |
$58.26 |
$74.57K |
| 2025-12-22 |
Schweiger Patrick Joseph |
Chief Technology Officer |
RSU Award |
27,500 |
- |
- |
| 2026-03-09 |
Goodwin William Carroll Murphy |
Chief Legal & Strategy Officer |
Informative Sell |
2,820 |
$56.69 |
$159.87K |
| 2026-03-06 |
Goodwin William Carroll Murphy |
Chief Legal & Strategy Officer |
Option Exercise |
5,191 |
- |
- |
