OKLO
Oklo Inc.
39.70$
+11.3%
vs. previous close
Closing price · As of: Sep 17, 2026
Ownership
Ownership Structure
Who owns Oklo Inc. (OKLO)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 80.4% of the shares are freely tradable; institutional investors hold 55.3%.
Institutional ownership
?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
55.3%
Insiders
?Share of the stock held by the executives, founders and major shareholders of the company itself.
16.0%
Float
?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
80.4%
Short % of float
?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
19.6%
Shares Outstanding
?Total number of shares issued. Price times share count gives market cap.
186Mio.
Largest Shareholders
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| SPDR® SSGA US Small Cap Low Volatil ETF | 0.13 | 57,393 | -0.6 | 05/10/2024 |
| Portland Replacement of Fssl Ful Alt F | 0.02 | 10,000 | +66.7 | 04/30/2024 |
| Range Nuclear Renaissance ETF | 0.02 | 8,900 | +0.0 | 05/09/2024 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Cochran Caroline | Co-Founder, COO | 1,457,495 | 57,862,552 $ | Sep 1, 2026 | indirect |
| DeWitte Jacob | Co-Founder, CEO | 1,424,001 | 56,532,840 $ | Sep 1, 2026 | indirect |
| Renner Alexandra | Chief Product Officer | 592,614 | 23,526,776 $ | Sep 13, 2026 | both |
| Bealmear Richard Craig | Chief Financial Officer | 461,642 | 18,327,187 $ | Sep 2, 2026 | direct |
| Hanson John | Chief of Staff | 360,391 | 14,307,523 $ | Sep 13, 2026 | direct |
| Goodwin William Carroll Murphy | Chief Legal & Strategy Officer | 45,268 | 1,797,140 $ | Aug 24, 2026 | direct |
| Narayanadas Vivek | General Counsel & Secretary | 8,369 | 332,249 $ | Sep 11, 2026 | direct |
| Jansen John M | Director | 6,000 | 238,200 $ | Sep 14, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 14, 2026 | Renner Alexandra | Chief Product Officer | Other | 6,763 | – | – |
| Sep 14, 2026 | Jansen John M | Director | Sell | 6,354 | 36.67 | 233,001 |
| Sep 13, 2026 | Renner Alexandra | Chief Product Officer | Other | 1,202 | – | – |
| Sep 13, 2026 | Hanson John | Chief of Staff | Other | 961 | – | – |
| Sep 11, 2026 | Narayanadas Vivek | General Counsel & Secretary | Other | 210 | – | – |
| Sep 9, 2026 | Narayanadas Vivek | General Counsel & Secretary | Sell | 365 | 43.31 | 15,808 |
| Sep 8, 2026 | Narayanadas Vivek | General Counsel & Secretary | Sell | 238 | 42.06 | 10,010 |
| Sep 8, 2026 | Narayanadas Vivek | General Counsel & Secretary | Other | 687 | – | – |
| Sep 4, 2026 | Narayanadas Vivek | General Counsel & Secretary | Sell | 538 | 39.88 | 21,455 |
| Sep 3, 2026 | Narayanadas Vivek | General Counsel & Secretary | Other | 1,014 | – | – |
| Sep 2, 2026 | Bealmear Richard Craig | Chief Financial Officer | Other | 5,666 | 3.18 | 18,018 |
| Sep 1, 2026 | Renner Alexandra | Chief Product Officer | Sell | 1,930 | 38.40 | 74,112 |
| Sep 1, 2026 | Bealmear Richard Craig | Chief Financial Officer | Sell | 16,430 | 38.76 | 636,827 |
| Sep 1, 2026 | Bealmear Richard Craig | Chief Financial Officer | Other | 16,430 | 3.18 | 52,247 |
| Sep 1, 2026 | Cochran Caroline | Co-Founder, COO | Sell | 20,000 | 38.56 | 771,200 |
| Sep 1, 2026 | Cochran Caroline | Co-Founder, COO | Sell | 200 | 39.15 | 7,830 |
| Sep 1, 2026 | Cochran Caroline | Co-Founder, COO | Sell | 19,800 | 38.88 | 769,824 |
| Sep 1, 2026 | Cochran Caroline | Co-Founder, COO | Sell | 40,000 | 38.40 | 1,536,000 |
| Sep 1, 2026 | DeWitte Jacob | Co-Founder, CEO | Sell | 200 | 39.15 | 7,830 |
| Sep 1, 2026 | DeWitte Jacob | Co-Founder, CEO | Sell | 19,800 | 38.88 | 769,824 |
| Sep 1, 2026 | DeWitte Jacob | Co-Founder, CEO | Sell | 20,000 | 38.56 | 771,200 |
| Sep 1, 2026 | DeWitte Jacob | Co-Founder, CEO | Sell | 40,000 | 38.66 | 1,546,400 |
| Aug 31, 2026 | Renner Alexandra | Chief Product Officer | Other | 4,173 | – | – |
| Aug 25, 2026 | Narayanadas Vivek | General Counsel & Secretary | Sell | 223 | 40.80 | 9,098 |
| Aug 24, 2026 | Renner Alexandra | Chief Product Officer | Sell | 557 | 39.77 | 22,152 |
| Aug 24, 2026 | Hanson John | Chief of Staff | Sell | 539 | 39.77 | 21,436 |
| Aug 24, 2026 | Narayanadas Vivek | General Counsel & Secretary | Sell | 3,264 | 39.77 | 129,809 |
| Aug 24, 2026 | Goodwin William Carroll Murphy | Chief Legal & Strategy Officer | Sell | 11,592 | 39.77 | 461,014 |
| Aug 21, 2026 | Narayanadas Vivek | General Counsel & Secretary | Other | 4,806 | – | – |
| Aug 13, 2026 | Hanson John | Chief of Staff | Other | 961 | – | – |
| Aug 13, 2026 | Renner Alexandra | Chief Product Officer | Other | 1,201 | – | – |
| Aug 12, 2026 | Goodwin William Carroll Murphy | Chief Legal & Strategy Officer | Other | 20,685 | – | – |
| Aug 4, 2026 | Bealmear Richard Craig | Chief Financial Officer | Other | 5,644 | 3.18 | 17,948 |
| Aug 3, 2026 | Narayanadas Vivek | General Counsel & Secretary | Other | 1,014 | – | – |
| Aug 3, 2026 | Cochran Caroline | Co-Founder, COO | Sell | 7,151 | 40.94 | 292,762 |
| Aug 3, 2026 | Cochran Caroline | Co-Founder, COO | Sell | 12,849 | 40.14 | 515,759 |
| Aug 3, 2026 | Cochran Caroline | Co-Founder, COO | Sell | 3,500 | 39.60 | 138,600 |
| Aug 3, 2026 | Cochran Caroline | Co-Founder, COO | Sell | 16,500 | 38.55 | 636,075 |
| Aug 3, 2026 | Cochran Caroline | Co-Founder, COO | Sell | 40,000 | 41.68 | 1,667,200 |
| Aug 3, 2026 | DeWitte Jacob | Co-Founder, CEO | Sell | 3,500 | 39.60 | 138,600 |
| Aug 3, 2026 | DeWitte Jacob | Co-Founder, CEO | Sell | 16,500 | 38.55 | 636,075 |
| Aug 3, 2026 | DeWitte Jacob | Co-Founder, CEO | Sell | 7,151 | 40.94 | 292,762 |
| Aug 3, 2026 | DeWitte Jacob | Co-Founder, CEO | Sell | 12,849 | 40.14 | 515,759 |
| Aug 3, 2026 | DeWitte Jacob | Co-Founder, CEO | Sell | 40,000 | 41.35 | 1,654,000 |
| Aug 3, 2026 | Bealmear Richard Craig | Chief Financial Officer | Sell | 16,452 | 38.80 | 638,338 |
| Aug 3, 2026 | Bealmear Richard Craig | Chief Financial Officer | Other | 16,452 | 3.18 | 52,317 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.