GROUP ONE TRADING LLC

Position in TAC — Transalta Corp

CIK 932540 CHICAGO, IL

Position in TAC

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$134,301

-$45,401 QoQ

Shares Held

10,252

-27.9% QoQ

Ownership

0.003%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2022

8 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Utilities · as of Mar 31, 2026

GROUP ONE TRADING LLC holds $24,025,766 across 5 Utilities - Independent Power Producers names. TAC ranks #4 (0.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VST	Vistra Corp.	133,945	$20,135,951
2	NRG	Nrg Energy, Inc.	23,918	$3,495,376
3	DGXX	Digi Power X Inc.	111,432	$226,206
4	TAC	Transalta Corp This page	10,252	$134,301
5	KEN	Kenon Holdings Ltd.	412	$33,932

8 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$134,301	10,252	-27.9%	Shares	Sole	2026-05-13
2025-12-31	$179,702	14,217	-31.5%	Shares	Sole	2026-02-12
2025-06-30	$224,021	20,762	-60.5%	Shares	Sole	2025-08-14
2025-03-31	$491,136	52,528	-68.5%	Shares	Sole	2025-05-14
2024-12-31	$2,356,668	166,549	+3609.3%	Shares	Sole	2025-05-14
2024-09-30	$46,516	4,490	+541.4%	Shares	Sole	2024-11-14
2022-12-31	$6,279	700	0.0%	Shares	Sole	2023-02-09
2022-09-30	$6,181	700	—	Shares	Sole	2022-11-09
No filing history on record for this holder in this stock.