MAIRS & POWER INC

Position in ENTG — Entegris Inc

CIK 1070134 St Paul, MN

Position in ENTG

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

Position Value

$234,112,970

+$76,647,458 QoQ

Shares Held

1,301,640

-3.1% QoQ

Ownership

0.852%

of shares outstanding

% of Portfolio

2.16%

of 13F equity value

Holder Rank

#28

of 740 holders

Holding Since

Dec 2021

19 quarters on record

Voting authority Sole 89% Shared 0% None 11%

Technology · as of Jun 30, 2026

MAIRS & POWER INC holds $253,243,615 across 4 Semiconductor Equipment & Materials names. ENTG ranks #1 (92.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ENTG	Entegris Inc This page	1,301,640	$234,112,970
2	AMBA	Ambarella Inc	126,353	$10,841,087
3	AMAT	Applied Materials Inc /De	11,007	$7,958,061
4	LRCX	Lam Research Corp	765	$331,497

19 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$234,112,970	1,301,640	-3.1%	Shares	Sole	2026-08-14
2026-03-31	$157,465,512	1,343,104	-0.4%	Shares	Sole	2026-05-14
2025-12-31	$113,652,070	1,348,986	+13.0%	Shares	Sole	2026-02-17
2025-09-30	$110,401,863	1,194,050	+6.8%	Shares	Sole	2025-11-14
2025-06-30	$90,169,845	1,118,039	+19.2%	Shares	Sole	2025-08-14
2025-03-31	$82,073,123	938,193	-0.0%	Shares	Sole	2025-05-15
2024-12-31	$92,945,323	938,273	-10.1%	Shares	Sole	2025-02-14
2024-09-30	$117,451,161	1,043,732	+11.9%	Shares	Sole	2024-11-14
2024-06-30	$126,265,645	932,538	-1.6%	Shares	Sole	2024-08-14
2024-03-31	$133,160,104	947,489	-5.1%	Shares	Sole	2024-05-15
2023-12-31	$119,599,411	998,159	-12.3%	Shares	Sole	2024-02-14
2023-09-30	$106,847,511	1,137,765	+1.1%	Shares	Sole	2023-11-14
2023-06-30	$124,692,669	1,125,182	+2.5%	Shares	Sole	2023-08-14
2023-03-31	$90,009,583	1,097,544	+10.5%	Shares	Sole	2023-05-15
2022-12-31	$65,157,630	993,408	+22.2%	Shares	Sole	2023-02-14
2022-09-30	$67,499,826	813,055	+10.4%	Shares	Sole	2022-11-14
2022-06-30	$67,867,840	736,653	+38.5%	Shares	Sole	2022-08-15
2022-03-31	$69,819,819	531,920	+140.1%	Shares	Sole	2022-05-16
2021-12-31	$30,706,556	221,580	—	Shares	Sole	2022-02-14
No filing history on record for this holder in this stock.