Oklo Inc. (OKLO) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

148,610,000Shares Outstanding

154,615Shares held by institutions

$10,458,159Value of institutional holdings

56.81%Institutional ownership %

19.57%Shares Changed QoQ

632No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 632 institutional investors hold a position in Oklo Inc. (NYSE:OKLO).

The percentage of Oklo owned by institutions changed from 50.3% in September 2025 to 56.8% in December 2025, marking a slight up trend.
In percentage terms, this reflects as a holdings change of 19.57% quarter on quarter, and an increase of 167.80% year over year.
Of these 632 institutional investors, 395 increased their holdings in Oklo, while 176 of them reduced positions, and 61 investors maintained their exposure.
This class of investors increased its holdings in Oklo to 84.42Mn shares for the 13F-cycle ending December 2025, up by 13.82Mn shares quarter on quarter, and up 41.09Mn shares year over year.
As of December 31, 2025, BlackRock, Inc. held Oklo's largest shareholding position with over 14.82Mn shares, representing 9.97% of total outstanding shares.
Among the most significant buyers of Oklo during December 2025 were BlackRock, Inc. (6.20Mn), NORGES BANK (1.03Mn), MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. (721.00K), GOLDMAN SACHS GROUP INC (697.55K), BANK OF MONTREAL /CAN/ (643.75K).
Leading sellers of Oklo stock in December 2025 included UBS Group AG (1.50Mn), JPMORGAN CHASE & CO (728.03K), T. Rowe Price Investment Management, Inc. (563.60K), MORGAN STANLEY (411.26K), D. E. Shaw & Co., Inc. (320.23K).
The top 10 institutional holders of Oklo for the quarter ending December 2025 included BlackRock, Inc. (14.82Mn), VANGUARD GROUP INC (11.64Mn), JANE STREET GROUP, LLC (9.69Mn), MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. (7.82Mn), VAN ECK ASSOCIATES CORP (3.96Mn), STATE STREET CORP (3.06Mn), GEODE CAPITAL MANAGEMENT, LLC (2.82Mn), MORGAN STANLEY (1.88Mn), GOLDMAN SACHS GROUP INC (1.26Mn), CHARLES SCHWAB INVESTMENT MANAGEMENT INC (1.16Mn).

632 Institutional Holders

154,615 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	14,820,434	6,204,837	72.02%	$1,063,514,343.00
VANGUARD GROUP INC	31 Dec, 2025	11,637,504	44,036	0.38%	$835,107,287.00
JANE STREET GROUP, LLC	31 Dec, 2025	9,687,700	403,100	4.34%	$695,189,352.00
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	31 Dec, 2025	7,823,237	721,003	10.15%	$561,395,487.00
VAN ECK ASSOCIATES CORP	31 Dec, 2025	3,956,281	481,288	13.85%	$283,902.00
STATE STREET CORP	31 Dec, 2025	3,060,220	584,184	23.59%	$219,601,387.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	2,816,007	185,265	7.04%	$201,670,887.00
MORGAN STANLEY	31 Dec, 2025	1,884,091	-411,258	-17.92%	$135,202,469.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	1,258,663	697,551	124.32%	$90,321,657.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	1,160,278	90,213	8.43%	$83,261,549.00
NORGES BANK	31 Dec, 2025	1,028,227	1,028,227	0.00%	$73,785,570.00
UBS Group AG	31 Dec, 2025	1,023,102	-1,500,385	-59.46%	$73,417,800.00
NORTHERN TRUST CORP	31 Dec, 2025	1,019,285	52,826	5.47%	$73,143,892.00
Clear Street Group Inc.	31 Dec, 2025	842,172	442,172	110.54%	$60,434,263.00
CANTOR FITZGERALD, L. P.	31 Dec, 2025	790,801	82,801	11.70%	$56,747,880.00
Marex Group plc	31 Dec, 2025	788,051	133,407	20.38%	$56,550,540.00
BANK OF MONTREAL /CAN/	31 Dec, 2025	706,273	643,746	1,029.55%	$50,682,150.00
Walleye Trading LLC	31 Dec, 2025	643,500	643,500	0.00%	$46,177,560.00
PORTLAND INVESTMENT COUNSEL INC.	31 Dec, 2025	622,830	-143,650	-18.74%	$44,625,544.00
Bank of New York Mellon Corp	31 Dec, 2025	510,941	132,418	34.98%	$36,665,160.00

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