BLAIR WILLIAM & CO/IL

Position in KLAC — Kla Corp

CIK 902367 CHICAGO, IL

Position in KLAC

as of Jun 30, 2026 · filed Aug 11, 2026 Compact

Position Value

$87,010,750

+$39,775,838 QoQ

Shares Held

288,392

-10.1% QoQ

Ownership

0.022%

of shares outstanding

% of Portfolio

0.26%

of 13F equity value

Holder Rank

#283

of 2,471 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 50% Shared 0% None 50%

Technology · as of Jun 30, 2026

BLAIR WILLIAM & CO/IL holds $239,425,303 across 10 Semiconductor Equipment & Materials names. KLAC ranks #1 (36.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	KLAC	Kla Corp This page	288,392	$87,010,750
2	ASML	Asml Holding NV	30,906	$61,485,629
3	AMAT	Applied Materials Inc /De	79,958	$57,809,634
4	LRCX	Lam Research Corp	37,565	$16,278,041
5	TER	Teradyne, Inc	14,329	$6,932,943
6	Q	Qnity Electronics, Inc.	34,664	$5,660,977
7	ENTG	Entegris Inc	10,283	$1,849,500
8	AEHR	Aehr Test Systems	17,838	$1,713,518

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$87,010,750	288,392	+799.0%	Shares	Sole	2026-08-11
2026-03-31	$47,234,912	32,080	+0.7%	Shares	Sole	2026-05-08
2025-12-31	$38,705,158	31,854	+1.9%	Shares	Sole	2026-02-17
2025-09-30	$33,727,822	31,270	-0.9%	Shares	Sole	2025-11-12
2025-06-30	$28,250,743	31,539	+1.9%	Shares	Sole	2025-07-24
2025-03-31	$21,045,248	30,958	-0.8%	Shares	Sole	2025-05-09
2024-12-31	$19,666,045	31,210	+0.6%	Shares	Sole	2025-02-12
2024-09-30	$24,025,295	31,024	+2.5%	Shares	Sole	2024-11-12
2024-06-30	$24,954,619	30,266	+3.9%	Shares	Sole	2024-08-12
2024-03-31	$20,344,454	29,123	+9.1%	Shares	Sole	2024-05-09
2023-12-31	$15,510,246	26,682	+2.4%	Shares	Sole	2024-02-12
2023-09-30	$11,947,175	26,048	+6.6%	Shares	Sole	2023-11-09
2023-06-30	$11,853,888	24,440	-3.7%	Shares	Sole	2023-08-11
2023-03-31	$10,127,741	25,372	+5.7%	Shares	Sole	2023-05-12
2022-12-31	$9,053,621	24,013	+2.1%	Shares	Sole	2023-02-10
2022-09-30	$7,116,041	23,514	-1.8%	Shares	Sole	2022-11-09
2022-06-30	$7,636,860	23,934	+6.1%	Shares	Sole	2022-08-10
2022-03-31	$8,260,509	22,566	+1.9%	Shares	Sole	2022-05-13
2021-12-31	$9,528,226	22,153	+25.2%	Shares	Sole	2022-02-14
2021-09-30	$5,917,816	17,691	+6.1%	Shares	Sole	2021-11-12
2021-06-30	$5,406,201	16,675	+2.5%	Shares	Sole	2021-08-12
2021-03-31	$5,373,956	16,265	-3.3%	Shares	Sole	2021-05-13
2020-12-31	$4,353,053	16,813	-0.1%	Shares	Sole	2021-02-09
2020-09-30	$3,260,837	16,831	+484.4%	Shares	Sole	2020-11-06
2020-06-30	$560,102	2,880	+19.0%	Shares	Sole	2020-08-12
2020-03-31	$347,850	2,420	—	Shares	Sole	2020-05-11
No filing history on record for this holder in this stock.