AMERICAN CENTURY COMPANIES INC

Position in ACMR — ACM Research, Inc.

CIK 748054 KANSAS CITY, MO

Position in ACMR

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$12,841,268

+$6,917,165 QoQ

Shares Held

101,200

-32.8% QoQ

Ownership

0.145%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#72

of 376 holders

Holding Since

Jun 2023

13 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

AMERICAN CENTURY COMPANIES INC holds $5,735,312,797 across 24 Semiconductor Equipment & Materials names. ACMR ranks #12 (0.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AMAT	Applied Materials Inc /De	3,004,203	$2,172,038,769
2	LRCX	Lam Research Corp	3,447,645	$1,493,968,007
3	ASML	Asml Holding NV	371,924	$739,920,445
4	KLAC	Kla Corp	2,024,263	$610,740,389
5	TER	Teradyne, Inc	357,353	$172,901,675
6	PLAB	Photronics Inc	3,387,380	$110,191,471
7	ONTO	Onto Innovation Inc.	272,597	$103,164,334
8	AMKR	Amkor Technology, Inc.	1,055,656	$91,029,216

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$12,841,268	101,200	-32.8%	Shares	Defined	2026-08-12
2026-03-31	$5,924,103	150,549	-0.9%	Shares	Defined	2026-05-15
2025-12-31	$5,995,847	151,986	+1.0%	Shares	Defined	2026-02-13
2025-09-30	$5,889,925	150,522	+9.1%	Shares	Defined	2025-11-12
2025-06-30	$3,571,713	137,904	+13.3%	Shares	Defined	2025-08-12
2025-03-31	$2,839,824	121,672	+13.6%	Shares	Defined	2025-05-13
2024-12-31	$1,616,938	107,082	-1.6%	Shares	Defined	2025-02-11
2024-09-30	$2,208,234	108,780	-1.4%	Shares	Defined	2024-11-12
2024-06-30	$2,543,494	110,299	+13.9%	Shares	Defined	2024-08-07
2024-03-31	$2,822,879	96,873	+34.2%	Shares	Defined	2024-05-14
2023-12-31	$1,410,416	72,181	+102.5%	Shares	Defined	2024-02-13
2023-09-30	$645,461	35,651	+39.6%	Shares	Defined	2023-11-13
2023-06-30	$334,115	25,544	—	Shares	Defined	2023-08-14
No filing history on record for this holder in this stock.