Oklo Inc. (OKLO) — Institutional Holders, Q2 2026

675 institutional investment managers reported a OKLO position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $4.3B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← OKLO stock profile

OKLO in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

117

Added to

258

Trimmed

174

Sold out

122

Biggest buyers

VAN ECK ASSOCIATESAdded · +1,830,836 sh+$95.8M
MARSHALL WACE, LLPNew · +1,066,394 sh+$55.8M
UBS Group AGAdded · +888,854 sh+$46.5M
Clear Street GroupAdded · +830,081 sh+$43.4M
JANE STREET GROUPAdded · +736,146 sh+$38.5M

Biggest sellers

BlackRockTrimmed · -8,595,544 sh-$449.8M
Defiance ETFsTrimmed · -3,503,470 sh-$183.3M
Alyeska Investment Group, L.P.Sold out · -1,709,692 sh-$89.5M
STATE STREETTrimmed · -948,084 sh-$49.6M
GEODE CAPITAL MANAGEMENTTrimmed · -689,721 sh-$36.1M

OKLO 13F holders ranked 1–100 of 675

Institutional investors reporting a position in Oklo Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	MIRAE ASSET GLOBAL ETFS Ltd.#1 · 8,935,822 sh	8,935,822	$467.6M	0.56%	+0.9%
2	VAN ECK ASSOCIATES#2 · 7,912,353 sh	7,912,353	$414.1M	0.25%	+30.1%
3	BlackRock#3 · 7,311,968 sh	7,311,968	$382.6M	<0.01%	-54.0%
4	VANGUARD CAPITAL MANAGEMENT#4 · 6,539,334 sh	6,539,334	$342.2M	<0.01%	+12.1%
5	VANGUARD PORTFOLIO MANAGEMENT#5 · 6,425,515 sh	6,425,515	$336.2M	0.02%	+3.0%
6	MORGAN STANLEY#6 · 3,262,878 sh	3,262,878	$170.7M	<0.01%	+21.7%
7	STATE STREET#7 · 2,378,058 sh	2,378,058	$124.4M	<0.01%	-28.5%
8	GEODE CAPITAL MANAGEMENT#8 · 2,364,428 sh	2,364,428	$123.8M	<0.01%	-22.6%
9	UBS Group AG#9 · 2,095,153 sh	2,095,153	$109.6M	0.01%	+73.7%
10	NORGES BANK#10 · 1,758,267 sh	1,758,267	$92.0M	<0.01%	—
11	Clear Street Group#11 · 1,329,523 sh	1,329,523	$69.6M	0.18%	+166.2%
12	JANE STREET GROUP#12 · 1,269,146 sh	1,269,146	$66.4M	<0.01%	+138.1%
13	Marex Group plc#13 · 1,207,636 sh	1,207,636	$63.2M	0.27%	+104.7%
14	NATIONAL BANK OF CANADA#14 · 1,185,312 sh	1,185,312	$62.1M	0.04%	+94.6%
15	GOLDMAN SACHS GROUP#15 · 1,148,200 sh	1,148,200	$60.1M	<0.01%	+10.2%
16	CHARLES SCHWAB INVESTMENT MANAGEMENT#16 · 1,138,236 sh	1,138,236	$59.6M	<0.01%	-4.0%
17	CANTOR FITZGERALD, L. P.#17 · 1,091,138 sh	1,091,138	$57.1M	0.62%	+125.2%
18	MARSHALL WACE, LLP#18 · 1,066,394 sh	1,066,394	$55.8M	0.04%	New
19	VANGUARD FIDUCIARY#19 · 880,052 sh	880,052	$46.1M	0.01%	+7.2%
20	NORTHERN#20 · 716,383 sh	716,383	$37.5M	<0.01%	-37.9%
21	SUSQUEHANNA INTERNATIONAL GROUP, LLP#21 · 678,175 sh	678,175	$35.5M	<0.01%	+1.8%
22	BANK OF MONTREAL#22 · 677,701 sh	677,701	$35.5M	0.01%	+26.2%
23	LPL Financial#23 · 629,015 sh	629,015	$32.9M	<0.01%	+17.8%
24	BANK OF AMERICA#24 · 592,471 sh	592,471	$31.0M	<0.01%	-4.5%
25	PORTLAND INVESTMENT COUNSEL#25 · 589,480 sh	589,480	$30.8M	8.62%	0.0%
26	Livforsakringsbolaget Skandia, Omsesidigt#26 · 71,778 sh	71,778	$26.0M	—	+1513.7%
27	Bank of New York Mellon#27 · 468,802 sh	468,802	$24.5M	<0.01%	-9.3%
28	WELLS FARGO & COMPANY#28 · 434,127 sh	434,127	$22.7M	<0.01%	+23.4%
29	RAYMOND JAMES FINANCIAL#29 · 398,843 sh	398,843	$20.9M	<0.01%	+12.7%
30	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#30 · 393,729 sh	393,729	$20.6M	<0.01%	-12.8%
31	ARK Investment Management#31 · 372,257 sh	372,257	$19.5M	0.13%	+6.0%
32	Mirae Asset Global Investments , Ltd.#32 · 352,541 sh	352,541	$18.4M	0.03%	+6.4%
33	EXCHANGE TRADED CONCEPTS#33 · 310,563 sh	310,563	$16.3M	0.07%	+3.9%
34	Wedbush Fund Advisers#34 · 292,072 sh	292,072	$15.3M	1.36%	+26.7%
35	Swiss National Bank#35 · 287,600 sh	287,600	$15.1M	<0.01%	-11.5%
36	FMR#36 · 283,221 sh	283,221	$14.8M	<0.01%	+41.8%
37	MILLENNIUM MANAGEMENT#37 · 278,978 sh	278,978	$14.6M	<0.01%	+390.5%
38	Nuveen#38 · 255,304 sh	255,304	$13.4M	<0.01%	-44.6%
39	Rockefeller Capital Management L.P.#39 · 253,057 sh	253,057	$13.2M	0.02%	+39.2%
40	Russell Investments Group, Ltd.#40 · 250,323 sh	250,323	$13.1M	0.01%	+465.2%
41	ROYAL BANK OF CANADA#41 · 248,080 sh	248,080	$13.0M	<0.01%	+65.0%
42	Darrow Company#42 · 232,670 sh	232,670	$12.2M	—	New
43	CARDIFF PARK ADVISORS#43 · 223,340 sh	223,340	$11.7M	0.91%	0.0%
44	Trexquant Investment#44 · 208,730 sh	208,730	$10.9M	0.06%	+2.8%
45	CITIGROUP#45 · 205,222 sh	205,222	$10.7M	<0.01%	+8.7%
46	OpenArc Corporate Advisory#46 · 200,884 sh	200,884	$10.5M	—	+5.9%
47	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#47 · 183,331 sh	183,331	$9.6M	<0.01%	+13.3%
48	Corient Private Wealth#48 · 181,698 sh	181,698	$9.5M	0.01%	-11.3%
49	Cetera Investment Advisers#49 · 181,474 sh	181,474	$9.5M	<0.01%	+26.6%
50	Virtu Financial#50 · 180,887 sh	180,887	$9.5M	0.30%	+582.7%
51	SG Americas Securities#51 · 172,312 sh	172,312	$9.0M	<0.01%	+96.2%
52	Foundations Investment Advisors#52 · 161,780 sh	161,780	$8.5M	0.09%	+11.2%
53	Toroso Investments#53 · 155,100 sh	155,100	$8.1M	0.01%	+189.5%
54	CAZ INVESTMENTS#54 · 152,400 sh	152,400	$8.0M	0.78%	+200.0%
55	JPMORGAN CHASE#55 · 143,986 sh	143,986	$8.0M	<0.01%	-53.1%
56	OSAIC#56 · 151,256 sh	151,256	$7.9M	<0.01%	+36.6%
57	Caption Management#57 · 150,540 sh	150,540	$7.9M	0.04%	New
58	Focus Partners Wealth#58 · 144,333 sh	144,333	$7.6M	<0.01%	+21.0%
59	PRICE T ROWE ASSOCIATES#59 · 143,827 sh	143,827	$7.5M	<0.01%	+1.8%
60	Defiance ETFs#60 · 139,574 sh	139,574	$7.3M	0.10%	-96.2%
61	Cambridge Investment Research Advisors#61 · 138,129 sh	138,129	$7.2M	0.02%	+20.7%
62	BARCLAYS PLC#62 · 132,153 sh	132,153	$6.9M	<0.01%	-52.9%
63	Caprock Group#63 · 131,055 sh	131,055	$6.9M	0.13%	0.0%
64	BNP PARIBAS FINANCIAL MARKETS#64 · 125,631 sh	125,631	$6.6M	<0.01%	-62.1%
65	Legal & General Group Plc#65 · 125,527 sh	125,527	$6.6M	<0.01%	-60.5%
66	STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#66 · 125,335 sh	125,335	$6.6M	0.01%	+244.5%
67	JONES FINANCIAL COMPANIES LLLP#67 · 128,241 sh	128,241	$6.4M	<0.01%	+23.2%
68	VANGUARD ASSET MANAGEMENT, Ltd#68 · 120,334 sh	120,334	$6.3M	<0.01%	+178.0%
69	STATE OF WISCONSIN INVESTMENT BOARD#69 · 118,577 sh	118,577	$6.2M	0.01%	+105.4%
70	Freestone Grove Partners#70 · 116,383 sh	116,383	$6.1M	0.04%	+116.6%
71	Havemeyer Place#71 · 113,742 sh	113,742	$6.0M	0.59%	+413.9%
72	Invesco Ltd.#72 · 113,178 sh	113,178	$5.9M	<0.01%	-13.3%
73	RHUMBLINE ADVISERS#73 · 110,034 sh	110,034	$5.8M	<0.01%	-36.2%
74	AlphaStar Capital Management#74 · 108,983 sh	108,983	$5.7M	—	+36.0%
75	NOMURA#75 · 108,430 sh	108,430	$5.7M	<0.01%	+346.7%
76	SIMPLEX TRADING#76 · 103,032 sh	103,032	$5.4M	<0.01%	New
77	Allianz Asset Management GmbH#77 · 101,869 sh	101,869	$5.3M	<0.01%	New
78	Private Advisor Group#78 · 99,054 sh	99,054	$5.2M	0.02%	-13.1%
79	WINTON GROUP Ltd#79 · 97,300 sh	97,300	$5.1M	0.16%	-27.6%
80	Westwood Wealth Management#80 · 97,240 sh	97,240	$5.1M	1.48%	+4.3%
81	COMMONWEALTH EQUITY SERVICES#81 · 95,362 sh	95,362	$5.0M	<0.01%	-1.2%
82	MERCER GLOBAL ADVISORS#82 · 93,900 sh	93,900	$4.9M	<0.01%	+2.6%
83	HITE Hedge Asset Management#83 · 93,886 sh	93,886	$4.9M	0.27%	-9.4%
84	FORA Capital#84 · 91,248 sh	91,248	$4.8M	0.33%	+62.2%
85	STIFEL FINANCIAL#85 · 90,798 sh	90,798	$4.8M	<0.01%	+71.8%
86	CIBC Bancorp USA#86 · 90,453 sh	90,453	$4.7M	<0.01%	-46.0%
87	Fideuram Asset Management (Ireland) dac#87 · 82,178 sh	82,178	$4.7M	0.09%	+3082.7%
88	Weiss Asset Management#88 · 86,321 sh	86,321	$4.5M	0.05%	New
89	Catalyst Funds Management Pty Ltd#89 · 85,350 sh	85,350	$4.5M	0.25%	New
90	KBC Group NV#90 · 84,998 sh	84,998	$4.4M	—	+92.0%
91	BALYASNY ASSET MANAGEMENT L.P.#91 · 84,965 sh	84,965	$4.4M	<0.01%	+159.4%
92	HSBC PLC#92 · 83,605 sh	83,605	$4.4M	<0.01%	-34.2%
93	Brevan Howard Capital Management#93 · 81,610 sh	81,610	$4.3M	0.03%	+877.8%
94	CREDIT AGRICOLE S A#94 · 79,780 sh	79,780	$4.2M	<0.01%	-16.3%
95	BLAIR WILLIAM#95 · 79,266 sh	79,266	$4.1M	0.01%	+54.1%
96	Zurcher Kantonalbank (Zurich Cantonalbank)#96 · 77,326 sh	77,326	$4.0M	<0.01%	+21.9%
97	Jain Global#97 · 76,557 sh	76,557	$4.0M	0.02%	New
98	Pacer Advisors#98 · 76,232 sh	76,232	$4.0M	0.01%	New
99	Squarepoint Ops#99 · 73,779 sh	73,779	$3.9M	<0.01%	+161.8%
100	Cerity Partners#100 · 73,626 sh	73,626	$3.9M	<0.01%	+145.1%

Funds that sold out of OKLO in Q2 2026 (122)

Held OKLO at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held OKLO in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Alyeska Investment Group, L.P.1,709,692 sh	1,709,692	$84.8M
Hood River Capital Management589,294 sh	589,294	$29.2M
Capital World Investors537,354 sh	537,354	$26.6M
Connor, Clark & Lunn Investment Management Ltd.303,775 sh	303,775	$15.1M
AMERICAN CENTURY COMPANIES254,218 sh	254,218	$12.6M
Sumitomo Mitsui206,946 sh	206,946	$10.3M
TUDOR INVESTMENT ET AL181,899 sh	181,899	$9.0M
Quadrature Capital Ltd177,669 sh	177,669	$8.8M
AVIVA PLC148,334 sh	148,334	$7.4M
Ghisallo Capital Management100,000 sh	100,000	$5.0M
Westerkirk Capital59,200 sh	59,200	$2.9M
WELLINGTON MANAGEMENT GROUP LLP56,646 sh	56,646	$2.8M
Parallax Volatility Advisers, L.P.41,870 sh	41,870	$2.6M
Arlington Capital Management49,490 sh	49,490	$2.5M
NOMURA ASSET MANAGEMENT LTD43,842 sh	43,842	$2.2M
DANSKE BANK A/S43,400 sh	43,400	$2.2M
Tredje AP-fonden42,739 sh	42,739	$2.1M
Resona Asset Management ,Ltd.33,936 sh	33,936	$1.7M
GFS Advisors5,429 sh	5,429	$1.6M
SCOPUS ASSET MANAGEMENT, L.P.30,000 sh	30,000	$1.5M
INTECH INVESTMENT MANAGEMENT29,074 sh	29,074	$1.4M
STATE TREASURER STATE OF MICHIGAN27,500 sh	27,500	$1.4M
T. Rowe Price Investment Management26,445 sh	26,445	$1.3M
Itau Unibanco Holding S.A.18,000 sh	18,000	$1.3M
Daiwa Securities Group24,383 sh	24,383	$1.2M
October Effect Ltd23,988 sh	23,988	$1.2M
Scientech Research23,699 sh	23,699	$1.2M
SEB Asset Management AB22,769 sh	22,769	$1.1M
IFM Investors Pty Ltd22,109 sh	22,109	$1.1M
TWO SIGMA SECURITIES20,832 sh	20,832	$1.0M
BOOTHBAY FUND MANAGEMENT20,472 sh	20,472	$1.0M
PRAKASH INVESTMENT ADVISORS19,980 sh	19,980	$990.8K
PRINCIPAL FINANCIAL GROUP19,309 sh	19,309	$957.5K
ProShare Advisors17,699 sh	17,699	$877.7K
XTX Topco Ltd16,326 sh	16,326	$809.6K
BRITISH COLUMBIA INVESTMENT MANAGEMENT15,257 sh	15,257	$756.6K
NISSAY ASSET MANAGEMENT /JAPAN14,809 sh	14,809	$734.4K
MEITAV INVESTMENT HOUSE LTD14,700 sh	14,700	$729.0K
ABN AMRO INVESTMENT SOLUTIONS13,738 sh	13,738	$681.3K
Oasis Advisors12,570 sh	12,570	$623.4K
NORDEA INVESTMENT MANAGEMENT AB12,919 sh	12,919	$600.7K
Sumitomo Mitsui DS Asset Management Company, Ltd11,080 sh	11,080	$549.5K
BRIDGEWAY CAPITAL MANAGEMENT10,750 sh	10,750	$533.1K
Intrua Financial10,600 sh	10,600	$525.7K
Swedbank AB10,592 sh	10,592	$525.3K
Himension Fund10,570 sh	10,570	$524.2K
National Pension Service10,423 sh	10,423	$516.9K
abrdn plc10,151 sh	10,151	$503.4K
Ameritas Investment Partners9,992 sh	9,992	$495.5K
TD ASSET MANAGEMENT9,715 sh	9,715	$481.8K
GSA CAPITAL PARTNERS LLP9,379 sh	9,379	$465.0K
Ionic Capital Management9,264 sh	9,264	$459.4K
Gulf International Bank (UK) Ltd8,426 sh	8,426	$418.0K
Investment Management of Ontario7,897 sh	7,897	$391.6K
OXFORD ASSET MANAGEMENT LLP7,481 sh	7,481	$371.0K
Allspring Global Investments7,613 sh	7,613	$366.0K
PRUDENTIAL PLC7,304 sh	7,304	$362.2K
CIBC WORLD MARKET7,205 sh	7,205	$357.3K
DRW Securities7,154 sh	7,154	$354.8K
AG2R LA MONDIALE GESTION D'ACTIFS6,197 sh	6,197	$307.3K
AlphaGrep UK Ltd6,148 sh	6,148	$304.9K
UNITED CAPITAL FINANCIAL ADVISORS5,918 sh	5,918	$293.5K
Tradewinds4,113 sh	4,113	$289.6K
JOHNSON INVESTMENT COUNSEL5,707 sh	5,707	$283.0K
Inspire Advisors5,030 sh	5,030	$249.4K
Formidable Asset Management3,234 sh	3,234	$232.1K
MSA Advisors4,576 sh	4,576	$226.9K
Abel Hall4,389 sh	4,389	$217.7K
Woodline Partners4,333 sh	4,333	$214.9K
Darden Wealth Group4,305 sh	4,305	$213.5K
NOMURA ASSET MANAGEMENT INTERNATIONAL4,268 sh	4,268	$212.0K
GC Wealth Management RIA4,246 sh	4,246	$210.6K
Penserra Capital Management4,215 sh	4,215	$209.0K
Vestcor4,187 sh	4,187	$208.0K
OSTRUM ASSET MANAGEMENT4,192 sh	4,192	$207.9K
Orion Porfolio Solutions4,159 sh	4,159	$206.2K
PRAXIS INVESTMENT MANAGEMENT4,114 sh	4,114	$204.0K
FEDERATED HERMES4,102 sh	4,102	$203.4K
Saudi Central Bank4,086 sh	4,086	$202.6K
ROYAL LONDON ASSET MANAGEMENT LTD4,044 sh	4,044	$200.5K
Bayforest Capital Ltd3,233 sh	3,233	$160.3K
PensionDanmark Pensionsforsikringsaktieselskab3,200 sh	3,200	$158.7K
Western Wealth Management2,628 sh	2,628	$130.3K
Innovative Asset Advisors Group2,188 sh	2,188	$108.5K
E. Ohman J:or Asset Management AB2,000 sh	2,000	$99.2K
Intesa Sanpaolo S.p.A.1,907 sh	1,907	$94.6K
Oslo Pensjonsforsikring AS1,679 sh	1,679	$83.3K
V-Square Quantitative Management1,580 sh	1,580	$78.4K
Siemens Fonds Invest GmbH1,545 sh	1,545	$76.6K
QUADRANT CAPITAL GROUP318 sh	318	$56.9K
Kemnay Advisory Services1,089 sh	1,089	$54.0K
Wealth Preservation Advisors821 sh	821	$40.7K
Morton Brown Family Wealth300 sh	300	$14.9K
SUMMIT SECURITIES GROUP260 sh	260	$12.9K
ARMSTRONG ADVISORY GROUP241 sh	241	$12.0K
Activest Wealth Management205 sh	205	$10.2K
WFA of San Diego200 sh	200	$9.9K
Lloyd Advisory Services162 sh	162	$8.0K
Berbice Capital Management100 sh	100	$5.0K
CONTRAVISORY INVESTMENT MANAGEMENT95 sh	95	$4.7K

And 22 smaller positions.

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.