WELLINGTON MANAGEMENT GROUP LLP

Position in OKLO — Oklo Inc.

CIK 902219 Boston, MA

Position in OKLO

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

Position Value

$2,809,074

-$15,439,492 QoQ

Shares Held

56,646

-77.7% QoQ

Ownership

0.030%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2025

4 quarters on record

Voting authority Sole 0% Shared 62% None 38%

Utilities · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $445,594,729 across 4 Utilities - Independent Power Producers names.

#	Ticker	Company	Shares	Value (USD)
1	VST	Vistra Corp.	1,400,924	$222,228,574
2	NRG	Nrg Energy, Inc.	628,478	$91,795,493
3	CEG	Constellation Energy Corp	288,592	$71,677,594
4	TLN	Talen Energy Corp	155,866	$59,893,068

4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,809,074	56,646	-77.7%	Shares	Defined	2026-05-15
2025-12-31	$18,248,566	254,300	-43.6%	Shares	Defined	2026-02-17
2025-09-30	$50,314,876	450,729	-18.9%	Shares	Defined	2025-11-14
2025-06-30	$31,136,485	556,108	—	Shares	Defined	2025-08-14
No filing history on record for this holder in this stock.