SIMPLEX TRADING, LLC

Position in HNRG — Hallador Energy Co

CIK 1488542 CHICAGO, IL

Position in HNRG

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$855,155

+$252,901 QoQ

Shares Held

52,528

+66.1% QoQ

Ownership

0.111%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2022

12 quarters on record

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

Utilities · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $4,801,484 across 5 Utilities - Independent Power Producers names. HNRG ranks #3 (17.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VST	Vistra Corp.	13,455	$2,022,690
2	CEG	Constellation Energy Corp	6,258	$1,747,546
3	HNRG	Hallador Energy Co This page	52,528	$855,155
4	TAC	Transalta Corp	13,392	$175,435
5	KEN	Kenon Holdings Ltd.	8	$658

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$855,155	52,528	+66.1%	Shares	Sole	2026-05-14
2025-12-31	$602,254	31,631	-15.4%	Shares	Sole	2026-02-11
2025-09-30	$731,741	37,391	+58323.4%	Shares	Sole	2025-11-12
2025-06-30	$1,013	64	-99.5%	Shares	Sole	2025-08-05
2025-03-31	$168,088	13,688	-72.7%	Shares	Sole	2025-05-12
2024-09-30	$472,612	50,118	+62.3%	Shares	Sole	2024-11-08
2024-06-30	$239,898	30,875	+3319.2%	Shares	Sole	2024-07-25
2023-09-30	$13,021	903	-31.1%	Shares	Sole	2023-11-01
2023-06-30	$11,226	1,310	-87.6%	Shares	Sole	2023-08-04
2022-12-31	$105,913	10,602	+45.1%	Shares	Sole	2023-02-02
2022-09-30	$41,054	7,305	+326.2%	Shares	Sole	2022-11-04
2022-06-30	$9,272	1,714	—	Shares	Sole	2022-08-03
No filing history on record for this holder in this stock.