Company · Ownership research

Oklo Inc. OKLO

CIK 0001849056 · CUSIP 02156V109

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 02156V109 (OKLO), not CUSIP 02156V909 (OKLO), CUSIP 02156V959 (OKLO), and does not merge CUSIPs.

This page lists the top 20 of 483 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$486.64M 8,691,559 shares	0.01%	+4.31M(+98.40%)Added	SEC filing ↗ Aug 11, 2025	▾
02	BlackRock, Inc. CIK 2012383 · View history	$409.70M 7,317,420 shares	0.01%	+5.84M(+395.20%)Added	SEC filing ↗ Aug 12, 2025	▾
03	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. CIK 1705339 · View history	$231.42M 4,133,253 shares	0.45%	-563.63K(-12.00%)Reduced	SEC filing ↗ Aug 14, 2025	▾
04	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$125.91M 2,248,425 shares	0.01%	+1.49M(+195.90%)Added	SEC filing ↗ Aug 8, 2025	▾
05	VAN ECK ASSOCIATES CORP CIK 869178 · View history	$120.83M 2,158,126 shares	0.14%	-609.57K(-22.00%)Reduced	SEC filing ↗ Aug 14, 2025	▾
06	STATE STREET CORP CIK 93751 · View history	$119.74M 2,138,658 shares	0.00%	+1.75M(+454.50%)Added	SEC filing ↗ Aug 14, 2025	▾
07	ExodusPoint Capital Management, LP CIK 1736225 · View history	$83.59M 1,492,879 shares	1.02%	+1.37M(+1,095.20%)Added	SEC filing ↗ Aug 13, 2025	▾
08	UBS Group AG CIK 1610520 · View history	$79.80M 1,425,224 shares	0.02%	+144.63K(+11.30%)Added	SEC filing ↗ Aug 14, 2025	▾
09	MORGAN STANLEY CIK 895421 · View history	$72.36M 1,292,403 shares	0.00%	-671.22K(-34.20%)Reduced	SEC filing ↗ Aug 14, 2025	▾
10	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$66.47M 1,187,223 shares	0.07%	+1.19MNew	SEC filing ↗ Aug 14, 2025	▾
11	Compound Planning, Inc. CIK 1978879 · View history	$48.26M 861,881 shares	1.83%	-102.95K(-10.70%)Reduced	SEC filing ↗ Aug 14, 2025	▾
12	NORTHERN TRUST CORP CIK 73124 · View history	$45.53M 813,171 shares	0.01%	+644.56K(+382.30%)Added	SEC filing ↗ Aug 13, 2025	▾
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$43.23M 772,185 shares	0.01%	+361.75K(+88.10%)Added	SEC filing ↗ Aug 12, 2025	▾
14	PORTLAND INVESTMENT COUNSEL INC. CIK 1081668 · View history	$42.80M 766,480 shares	12.59%	-41.10K(-5.10%)Reduced	SEC filing ↗ Aug 13, 2025	▾
15	Hood River Capital Management LLC CIK 1578177 · View history	$40.92M 730,823 shares	0.57%	+730.82KNew	SEC filing ↗ Aug 14, 2025	▾
16	Ghisallo Capital Management LLC CIK 1825214 · View history	$36.39M 650,000 shares	0.97%	+650.00KNew	SEC filing ↗ Aug 14, 2025	▾
17	Tidal Investments LLC CIK 1600064 · View history	$35.20M 628,658 shares	0.23%	+315.36K(+100.70%)Added	SEC filing ↗ Aug 14, 2025	▾
18	VOLORIDGE INVESTMENT MANAGEMENT, LLC CIK 1556921 · View history	$31.79M 567,759 shares	0.12%	+567.76KNew	SEC filing ↗ Aug 14, 2025	▾
19	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$31.14M 556,108 shares	0.01%	+556.11KNew	SEC filing ↗ Aug 14, 2025	▾
20	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$29.89M 533,846 shares	0.00%	+46.75K(+9.60%)Added	SEC filing ↗ Aug 14, 2025	▾

Showing 20 / 483 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

483

Cancelled or null records excluded

Disclosed shares

54,133,558

Not deduplicated across managers

Disclosed value

$3.03B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Oklo Inc. · Q2 2025

Explore all 483 reporting institutions.

This page includes 20 of 483 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.