| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| DeWitte Jacob | 16% | -11% | $1,541,536,643 | -$96,430,227 | 23,907,206 | -5.9% | Jacob DeWitte | 30 Jun 2025 |
| BlackRock, Inc. | 9.2% | +62% | $1,034,732,556 | +$455,193,414 | 14,419,350 | +79% | BlackRock, Inc. | 31 Dec 2025 |
| VANGUARD GROUP INC | 7.8% | +32% | $1,294,178,833 | +$323,940,102 | 11,593,468 | +33% | The Vanguard Group | 30 Sep 2025 |
| Altman Samuel H. | 4.8% | -42% | $162,535,825 | -$81,084,026 | 6,650,402 | -33% | Samuel H. Altman | 06 Mar 2025 |
| Data Collective IV, L.P. | 4.4% | $131,541,335 | 5,382,215 | Matthew Ocko | 31 Dec 2024 |
As of 31 Dec 2025, 661 institutional investors reported holding 74,462,299 shares of Oklo Inc. - Class A Stock (OKLO). This represents 48% of the company’s total 156,732,065 outstanding shares.
The largest institutional shareholders of Oklo Inc. - Class A Stock (OKLO) together control 37% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9.5% | 14,820,434 | +72% | 0.02% | $1,063,514,343 |
| VANGUARD GROUP INC | 7.4% | 11,637,504 | +0.38% | 0.01% | $835,107,287 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 5% | 7,823,237 | +10% | 0.84% | $561,395,487 |
| VAN ECK ASSOCIATES CORP | 2.5% | 3,956,281 | +14% | 0.23% | $283,902,000 |
| STATE STREET CORP | 2% | 3,060,220 | +24% | 0.01% | $219,601,387 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 2,816,007 | +7% | 0.01% | $201,670,887 |
| MORGAN STANLEY | 1.2% | 1,884,090 | -18% | 0.01% | $135,202,350 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.74% | 1,160,278 | +8.4% | 0.01% | $83,261,549 |
| NORGES BANK | 0.66% | 1,028,227 | 0.01% | $73,785,570 | |
| NORTHERN TRUST CORP | 0.65% | 1,019,285 | +5.5% | 0.01% | $73,143,892 |
| UBS Group AG | 0.64% | 1,003,080 | -60% | 0.01% | $71,981,021 |
| GOLDMAN SACHS GROUP INC | 0.58% | 909,263 | +85% | 0.01% | $65,248,713 |
| Clear Street Group Inc. | 0.54% | 842,172 | +111% | 0.32% | $60,434,263 |
| CANTOR FITZGERALD, L. P. | 0.5% | 790,801 | +12% | 1.7% | $56,747,880 |
| Marex Group plc | 0.5% | 788,051 | +20% | 0.61% | $56,550,540 |
| BANK OF MONTREAL /CAN/ | 0.45% | 706,273 | +1030% | 0.02% | $50,682,150 |
| PORTLAND INVESTMENT COUNSEL INC. | 0.4% | 622,830 | -19% | 13% | $44,625,544 |
| Bank of New York Mellon Corp | 0.33% | 510,941 | +35% | 0.01% | $36,665,160 |
| Capital World Investors | 0.32% | 505,938 | +5.2% | 0% | $36,306,111 |
| LPL Financial LLC | 0.32% | 501,615 | +2.9% | 0.01% | $35,995,892 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.26% | 414,770 | +91% | 0.01% | $29,763,895 |
| BARCLAYS PLC | 0.26% | 400,773 | +148% | 0.01% | $28,759,470 |
| BANK OF AMERICA CORP /DE/ | 0.25% | 399,305 | -14% | 0% | $28,654,127 |
| WELLS FARGO & COMPANY/MN | 0.23% | 357,173 | +6.8% | 0.01% | $25,630,752 |
| DEUTSCHE BANK AG\ | 0.22% | 352,104 | +320% | 0.01% | $25,266,984 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 74,462,299 | $5,341,175,369 | +$592,519,988 | $71.76 | 661 |
| 2025 Q3 | 64,825,094 | $7,232,230,732 | +$1,392,030,597 | $111.63 | 633 |
| 2025 Q2 | 54,037,247 | $3,025,526,482 | +$1,210,811,554 | $55.99 | 471 |
| 2025 Q1 | 34,393,412 | $743,846,419 | -$148,711,672 | $21.63 | 284 |
| 2024 Q4 | 41,314,990 | $878,004,505 | -$16,955,330 | $21.23 | 229 |
| 2024 Q3 | 45,243,814 | $366,091,868 | +$47,251,351 | $8.09 | 117 |
| 2024 Q2 | 39,977,637 | $338,608,593 | +$109,326,363 | $8.47 | 93 |
| 2024 Q1 | 23,708,784 | $270,750,192 | -$26,000,190 | $11.42 | 53 |
| 2023 Q4 | 26,020,463 | $274,825,889 | -$165,222,873 | $10.56 | 37 |
| 2023 Q3 | 41,864,000 | $433,274,528 | -$3,262,818 | $10.35 | 64 |
| 2023 Q2 | 42,090,156 | $439,000,288 | -$67,270,173 | $10.43 | 74 |
| 2023 Q1 | 48,073,284 | $487,949,431 | +$22,100,014 | $10.15 | 71 |
| 2022 Q4 | 47,004,958 | $466,276,234 | -$10,079,589 | $9.92 | 72 |
| 2022 Q3 | 48,596,744 | $474,224,116 | +$24,315,279 | $9.76 | 76 |
| 2022 Q2 | 45,432,316 | $438,816,929 | -$27,927,226 | $9.65 | 72 |
| 2022 Q1 | 47,355,551 | $462,202,000 | -$7,363,269 | $9.76 | 67 |
| 2021 Q4 | 46,964,495 | $462,588,000 | -$2,851,621 | $9.85 | 66 |
| 2021 Q3 | 47,263,446 | $464,430,000 | +$462,957,000 | $9.83 | 70 |