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JANE STREET GROUP, LLC

Position in OKLO — Oklo Inc.

CIK 1595888 NEW YORK, NY

Position in OKLO

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$66,414,410
+$39,982,940 QoQ
Shares Held
1,269,146
+138.1% QoQ
Ownership
0.682%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#12
of 669 holders
Holding Since
Sep 2021
18 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in OKLO Over Time

Shares Held

Position Value (USD)

Derivatives in OKLO

reported options exposure · as of Jun 30, 2026
CallValue
$241,853,561
CallShares
4,621,700
PutValue
$235,814,679
PutShares
4,506,300

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Utilities - Independent Power Producers

Utilities · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $399,876,170 across 8 Utilities - Independent Power Producers names. OKLO ranks #3 (16.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 OKLO
Oklo Inc.
This page
1,269,146 $66,414,410

All Filings in OKLO

Export CSV
31 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $241,853,561 4,621,700
2026-06-30 $66,414,410 1,269,146
2026-06-30 $235,814,679 4,506,300
2026-03-31 $26,431,470 533,000
2026-03-31 $243,541,449 4,911,100
2026-03-31 $191,675,268 3,865,200
2025-12-31 $317,243,784 4,420,900
2025-12-31 $377,945,568 5,266,800
2025-09-30 $585,878,892 5,248,400
2025-09-30 $450,561,006 4,036,200
2025-06-30 $78,469,985 1,401,500
2025-06-30 $83,391,506 1,489,400
2025-03-31 $25,281,144 1,168,800
2025-03-31 $15,471,939 715,300
2025-03-31 $2,909,645 134,519
2024-12-31 $6,178,693 291,036
2024-12-31 $8,704,300 410,000
2024-12-31 $21,586,664 1,016,800
2024-09-30 $4,239,846 524,085
2024-09-30 $621,312 76,800
2024-09-30 $1,503,931 185,900
2024-06-30 $4,430,038 523,027
2023-09-30 $1,096,365 105,929
2023-06-30 $1,043,438 100,042
2023-03-31 $1,015,832 100,082
2022-12-31 $993,061 100,107
2022-09-30 $977,571 100,161
2022-06-30 $968,946 100,409
2022-03-31 $983,612 100,780
2021-12-31 $986,201 100,122
2021-09-30 $983,000 100,000