CASTLEARK MANAGEMENT LLC

Position in TER — Teradyne, Inc

CIK 1106832 CHICAGO, IL

Position in TER

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$1,131,701

-$424,417 QoQ

Shares Held

2,339

-55.4% QoQ

Ownership

0.001%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

#702

of 1,416 holders

Holding Since

Mar 2020

14 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

CASTLEARK MANAGEMENT LLC holds $151,003,966 across 5 Semiconductor Equipment & Materials names. TER ranks #5 (0.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LRCX	Lam Research Corp	283,808	$122,982,520
2	UCTT	Ultra Clean Holdings, Inc.	95,770	$13,655,844
3	KLIC	Kulicke & Soffa Industries Inc	86,950	$11,630,432
4	CAMT	Camtek Ltd	9,830	$1,603,469
5	TER	Teradyne, Inc This page	2,339	$1,131,701

14 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,131,701	2,339	-55.4%	Shares	Sole	2026-08-14
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.