CASTLEARK MANAGEMENT LLC

Position in TER — Teradyne, Inc

CIK 1106832 CHICAGO, IL

Position in TER

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$1,556,118

+$690,905 QoQ

Shares Held

5,249

+17.4% QoQ

Ownership

0.003%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

13 quarters on record

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

Technology · as of Mar 31, 2026

CASTLEARK MANAGEMENT LLC holds $101,940,023 across 7 Semiconductor Equipment & Materials names. TER ranks #7 (1.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LRCX	Lam Research Corp	336,740	$71,947,868
2	KLIC	Kulicke & Soffa Industries Inc	106,380	$6,991,293
3	IPGP	Ipg Photonics Corp	60,456	$6,927,653
4	UCTT	Ultra Clean Holdings, Inc.	100,130	$6,226,083
5	ONTO	Onto Innovation Inc.	29,030	$5,953,182
6	CAMT	Camtek Ltd	15,420	$2,337,826
7	TER	Teradyne, Inc This page	5,249	$1,556,118

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,556,118	5,249	+17.4%	Shares	Sole	2026-05-15
2025-12-31	$865,213	4,470	-5.9%	Shares	Sole	2026-02-13
2023-09-30	$477,185	4,750	-0.8%	Shares	Sole	2023-11-15
2023-06-30	$533,270	4,790	0.0%	Shares	Sole	2023-08-16
2023-03-31	$514,972	4,790	+137.7%	Shares	Sole	2023-05-16
2022-06-30	$180,443	2,015	0.0%	Shares	Sole	2022-08-16
2022-03-31	$238,233	2,015	-49.3%	Shares	Sole	2022-05-16
2021-12-31	$650,031	3,975	0.0%	Shares	Sole	2022-02-16
2021-09-30	$433,950	3,975	+52.6%	Shares	Sole	2021-11-12
2021-06-30	$348,965	2,605	0.0%	Shares	Sole	2021-08-17
2021-03-31	$316,976	2,605	-88.1%	Shares	Sole	2021-05-14
2020-06-30	$1,849,501	21,885	-34.4%	Shares	Sole	2020-08-14
2020-03-31	$1,806,840	33,355	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.