FIRST WILSHIRE SECURITIES MANAGEMENT INC

Broker-Dealer

Position in ECVT — Ecovyst Inc.

CIK 732847 PASADENA, CA

Position in ECVT

as of Mar 31, 2026 · filed May 12, 2026 Compact

Position Value

$28,250,642

+$7,088,535 QoQ

Shares Held

2,196,784

+1.0% QoQ

Ownership

2.01%

of shares outstanding

% of Portfolio

8.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2022

14 quarters on record

Voting authority Sole 95% Shared 0% None 5%

Basic Materials · as of Mar 31, 2026

FIRST WILSHIRE SECURITIES MANAGEMENT INC holds $39,062,859 across 2 Specialty Chemicals names. ECVT ranks #1 (72.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	ECVT	Ecovyst Inc. This page	2,196,784	$28,250,642
2	IOSP	Innospec Inc.	148,072	$10,812,217

14 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$28,250,642	2,196,784	+1.0%	Shares	Sole	2026-05-12
2025-12-31	$21,162,107	2,174,934	-0.4%	Shares	Sole	2026-02-12
2025-09-30	$19,122,160	2,182,895	-0.8%	Shares	Sole	2025-11-14
2025-06-30	$18,110,814	2,200,585	-0.9%	Shares	Sole	2025-08-14
2025-03-31	$13,760,664	2,219,462	+12.6%	Shares	Sole	2025-05-14
2024-12-31	$15,063,543	1,971,668	-2.8%	Shares	Sole	2025-02-12
2024-09-30	$13,890,265	2,027,776	+89.9%	Shares	Sole	2024-11-14
2024-06-30	$9,577,430	1,067,718	-0.7%	Shares	Sole	2024-08-14
2024-03-31	$11,988,424	1,075,195	+72.7%	Shares	Sole	2024-05-15
2023-12-31	$6,084,228	622,746	-4.7%	Shares	Sole	2024-02-12
2023-09-30	$6,428,403	653,293	-4.5%	Shares	Sole	2023-11-14
2023-06-30	$7,840,347	684,149	+0.9%	Shares	Sole	2023-08-14
2023-03-31	$7,494,032	678,193	+29.0%	Shares	Sole	2023-05-15
2022-12-31	$4,657,560	525,684	—	Shares	Sole	2023-02-15
No filing history on record for this holder in this stock.