SIMPLEX TRADING, LLC

Position in GEOS — Geospace Technologies Corp

CIK 1488542 CHICAGO, IL

Position in GEOS

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

Position Value

$14,047

+$9,216 QoQ

Shares Held

2,075

+424.0% QoQ

Ownership

0.016%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#50

of 83 holders

Holding Since

Mar 2020

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Energy · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $7,540,229 across 24 Oil & Gas Equipment & Services names. GEOS ranks #19 (0.2% 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.	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

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$14,047	2,075	+424.0%	Shares	Sole	2026-08-12
2026-03-31	$4,831	396	-80.2%	Shares	Sole	2026-05-14
2025-12-31	$33,836	2,001	+485.1%	Shares	Sole	2026-02-11
2024-03-31	$4	342	-82.9%	Shares	Sole	2024-04-25
2023-12-31	$25,881	1,997	-37.0%	Shares	Sole	2024-02-02
2023-09-30	$41,038	3,169	+29.3%	Shares	Sole	2023-11-01
2023-03-31	$17,279	2,451	+75.1%	Shares	Sole	2023-04-27
2022-03-31	$8,050	1,400	+18.5%	Shares	Sole	2022-05-02
2021-12-31	$7,900	1,181	-84.8%	Shares	Sole	2022-02-23
2021-09-30	$74,022	7,751	0.0%	Shares	Sole	2021-10-28
2021-06-30	$62,705	7,751	-8.9%	Shares	Sole	2021-08-12
2021-03-31	$77,574	8,506	+23.7%	Shares	Sole	2021-04-26
2020-12-31	$58,867	6,877	+959.6%	Shares	Sole	2021-02-02
2020-06-30	$4,880	649	-49.2%	Shares	Sole	2020-07-13
2020-03-31	$8,179	1,278	—	Shares	Sole	2020-04-29
No filing history on record for this holder in this stock.