SIMPLEX TRADING, LLC

Position in WTTR — Select Water Solutions, Inc.

CIK 1488542 CHICAGO, IL

Position in WTTR

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$479,440

+$419,923 QoQ

Shares Held

23,996

+516.9% QoQ

Ownership

0.017%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#163

of 264 holders

Holding Since

Mar 2020

16 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Energy · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $7,675,213 across 24 Oil & Gas Equipment & Services names. WTTR ranks #5 (6.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LBRT	Liberty Energy Inc.	97,406	$2,551,063
2	KGS	Kodiak Gas Services, Inc.	11,387	$855,505
3	PUMP	ProPetro Holding Corp.	54,889	$787,108
4	OII	Oceaneering International Inc	14,822	$600,587
5	WTTR	Select Water Solutions, Inc. This page	23,996	$479,440
6	TDW	Tidewater Inc	6,667	$444,222
7	NOV	NOV Inc.	23,905	$443,437
8	AROC	Archrock, Inc.	9,134	$371,845

16 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$479,440	23,996	+516.9%	Shares	Sole	2026-08-12
2026-03-31	$59,517	3,890	-15.5%	Shares	Sole	2026-05-14
2025-12-31	$48,413	4,602	+153.4%	Shares	Sole	2026-02-11
2024-03-31	$16,761	1,816	-52.6%	Shares	Sole	2024-04-25
2023-12-31	$29,069	3,830	-61.9%	Shares	Sole	2024-02-02
2023-09-30	$79,818	10,040	+145.8%	Shares	Sole	2023-11-01
2023-03-31	$28,431	4,085	+0.1%	Shares	Sole	2023-04-27
2022-12-31	$37,689	4,079	+240.8%	Shares	Sole	2023-02-02
2022-06-30	$8,163	1,197	-27.8%	Shares	Sole	2022-08-03
2022-03-31	$14,200	1,657	+84.7%	Shares	Sole	2022-05-02
2021-12-31	$5,588	897	-60.1%	Shares	Sole	2022-02-23
2021-09-30	$11,656	2,246	0.0%	Shares	Sole	2021-10-28
2021-06-30	$13,565	2,246	+6317.1%	Shares	Sole	2021-08-12
2020-12-31	$143	35	-97.7%	Shares	Sole	2021-02-02
2020-06-30	$7,580	1,547	+206.9%	Shares	Sole	2020-07-13
2020-03-31	$1,627	504	—	Shares	Sole	2020-04-29
No filing history on record for this holder in this stock.