Who owns Oklo Inc, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
BlackRock, Inc.: 3.6% · 6,225,585 shares
Jacob DeWitte: 11.1% · 20,559,091 shares — Caroline Cochran: 11.1% · 20,559,091 shares
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See every investor who has disclosed crossing 5% of Oklo Inc.
Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Oklo Inc they hold. Together these 910 managers report 53.79% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | $835M | 11,637,504 | 0.01% | 6.26% | December 31, 2025 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $468M | 8,935,822 | 0.56% | 4.80% | June 30, 2026 |
908 more institutional holders behind a free account
See every manager reporting Oklo Inc, how much of the company they hold, and how big the position is inside their own portfolio.
Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 361 funds hold 23.32% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| Global X Uranium ETF | $571M | 7.31% | 4.23% | April 30, 2026 |
| iShares MSCI USA Quality Factor ETF | $353M | 0.71% | 2.62% | April 30, 2026 |
359 more funds behind a free account
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