TWO SIGMA SECURITIES, LLC

Broker-Dealer

Position in OKLO — Oklo Inc.

CIK 1450144 NEW YORK, NY

Position in OKLO

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$1,033,058

+$693,275 QoQ

Shares Held

20,832

+340.0% QoQ

Ownership

0.011%

of shares outstanding

% of Portfolio

0.19%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2025

3 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Utilities · as of Jun 30, 2026

TWO SIGMA SECURITIES, LLC holds $2,320,184 across 2 Utilities - Independent Power Producers names.

#	Ticker	Company	Shares	Value (USD)	Open
1	VST	Vistra Corp.	10,598	$1,681,160
2	TLN	Talen Energy Corp	1,663	$639,024

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,033,058	20,832	+340.0%	Shares	Sole	2026-05-15
2025-12-31	$339,783	4,735	-52.3%	Shares	Sole	2026-02-17
2025-03-31	$214,699	9,926	—	Shares	Sole	2025-05-15
No filing history on record for this holder in this stock.