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OKLO in the 13F filings

Oklo Inc · CUSIP 02156V109

Sector · UtilitiesTheme · Electric utilitiesTheme · Energy and power infrastructure· L3VLUP-defined
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 10 Feb 2026
Managers listing it
26
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 2 listed it in both
Shares listed
2,935,699
combined, among listed positions
Reported value
$211m
combined, at the quarter end

Among the 92 comparable managers: 17 buyers (opened or added shares) and 12 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -131,771.

Managers listing OKLO in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

26 of 26 holders

ActionFiling
Capital World Investors505,938$36munder 0.1%Added+24,92311 Feb 2026 (the filing on sec.gov)
Man Group PLC336,841$24munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)264,233$19munder 0.1%Added+109,79817 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP254,300$18munder 0.1%Trimmed-196,42917 Feb 2026 (the filing on sec.gov)
Quantbot Technologies LP234,776$17m0.56%Newnew10 Feb 2026 (the filing on sec.gov)
ARK Investment Management LLC223,045$16m0.11%Added+66,56411 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC218,472$16munder 0.1%Added+96,51117 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP122,998$8.8munder 0.1%Trimmed-45,79717 Feb 2026 (the filing on sec.gov)
Invesco Ltd113,597$8.2munder 0.1%Trimmed-105,44319 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc107,866$7.7munder 0.1%Trimmed-177,41417 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP104,861$7.5munder 0.1%Trimmed-57517 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC69,990$5.0munder 0.1%Added+67,52917 Feb 2026 (the filing on sec.gov)
Millennium Management LLC50,992$3.7munder 0.1%Trimmed-1,23817 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP46,836$3.4munder 0.1%Added+21,24313 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP37,002$2.7munder 0.1%Added+4,28817 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC35,498$2.5munder 0.1%Added+5,03717 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC35,247$2.5munder 0.1%Added+29,10717 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC33,024$2.4munder 0.1%Added+1,87227 Oct 2026 (the filing on sec.gov)
Soros Fund Management LLC32,147$2.3munder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.30,901$2.2munder 0.1%Trimmed-320,22917 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC27,856$2.0munder 0.1%Added+18,80313 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC20,543$1.5munder 0.1%Added+1,65913 Feb 2026 (the filing on sec.gov)
Winton Group Ltd19,000$1.4munder 0.1%Newnew11 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC5,580$400kunder 0.1%Trimmed-19,15813 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd3,600$258kunder 0.1%Trimmed-41,18717 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (5)

Exited (3)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
5 in Q3 2024 to 6 in Q2 2026

Tracked managers listing it, at least.

0246820222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
OKLO by quarter
QuarterHoldersReported valueBuyersSellers
Q3 20216$83mn.a.n.a.
Q4 20216$74mn.a.n.a.
Q1 20226$73mn.a.n.a.
Q2 20226$72mn.a.n.a.
Q3 20227$95mn.a.n.a.
Q4 20227$81mn.a.n.a.
Q1 20237$92mn.a.n.a.
Q2 20235$75mn.a.n.a.
Q3 20233$48mn.a.n.a.
Q4 20232$38m02
Q1 20242$41m00
Q2 20243$29m11
Q3 20245$37m20
Q4 20243$75m03
Q1 20251$6.2m03
Q2 20256$196m51
Q3 20252$71m12
Q4 20256$97m1712
Q1 20264$33m2012
Q2 20266$94m1813

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

OKLO and SO →OKLO and D →OKLO and NEE →Choose a stock to compare with OKLO →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own OKLO, latest filings →Back to the 13F Explorer →