RHUMBLINE ADVISERS

CIK

1115418

City

BOSTON

State / Country

Stock

AMKR — Amkor Technology, Inc.

Top Portfolio Positions

3,471 positions · $113,674,413,224 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
NVDA	Nvidia Corp Technology	42,003,171	$7,325,353,022	6.44%
AAPL	Apple Inc. Technology	25,818,857	$6,552,567,718	5.76%
MSFT	Microsoft Corp Technology	12,999,925	$4,812,182,237	4.23%
AMZN	Amazon Com Inc Consumer Cyclical	16,587,340	$3,454,645,301	3.04%
GOOGL	Alphabet Inc. Communication Services	10,138,654	$2,915,471,344	2.56%
AVGO	Broadcom Inc. Technology	8,207,022	$2,540,155,379	2.23%
META	Meta Platforms, Inc. Communication Services	3,836,760	$2,195,125,498	1.93%
TSLA	Tesla, Inc. Consumer Cyclical	4,844,884	$1,801,085,627	1.58%
BRK-B	Berkshire Hathaway Inc Financial Services	2,848,515	$1,365,008,388	1.20%
JPM	Jpmorgan Chase & Co Financial Services	4,613,123	$1,356,996,261	1.19%

25 quarters · across all stocks

25 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$14,167,158	314,616	+3.8%	Shares	Sole	2026-05-12
2025-12-31	$11,968,519	303,154	-4.0%	Shares	Sole	2026-02-13
2025-09-30	$8,970,310	315,856	-2.1%	Shares	Sole	2025-11-06
2025-06-30	$6,772,486	322,653	+4.8%	Shares	Sole	2025-08-12
2025-03-31	$5,558,001	307,752	-0.4%	Shares	Sole	2025-05-29
2024-12-31	$7,941,883	309,143	-2.6%	Shares	Sole	2025-05-29
2024-09-30	$9,713,847	317,446	+5.4%	Shares	Sole	2024-11-12
2024-06-30	$12,052,823	301,170	-19.6%	Shares	Sole	2024-08-01
2024-03-31	$12,079,715	374,681	+1.2%	Shares	Sole	2024-05-09
2023-12-31	$12,316,054	370,185	+4.0%	Shares	Sole	2024-02-08
2023-09-30	$8,040,808	355,788	+1.7%	Shares	Sole	2023-11-09
2023-06-30	$10,407,026	349,816	+0.2%	Shares	Sole	2023-08-08
2023-03-31	$9,084,987	349,154	0.0%	Shares	Sole	2023-05-11
2022-12-31	$8,372,712	349,154	+0.8%	Shares	Sole	2023-02-14
2022-09-30	$5,907,466	346,479	+3.6%	Shares	Sole	2022-11-10
2022-06-30	$5,666,283	334,294	+8.9%	Shares	Sole	2022-08-11
2022-03-31	$6,669,212	307,054	-0.4%	Shares	Sole	2022-05-12
2021-12-31	$7,639,806	308,181	-0.7%	Shares	Sole	2022-02-10
2021-09-30	$7,746,775	310,492	-4.3%	Shares	Sole	2021-11-12
2021-06-30	$7,682,997	324,588	-0.1%	Shares	Sole	2021-08-05
2021-03-31	$7,706,224	325,020	+95.4%	Shares	Sole	2021-05-06
2020-12-31	$2,508,090	166,319	-1.6%	Shares	Sole	2021-02-10
2020-09-30	$1,893,001	169,018	-14.9%	Shares	Sole	2020-11-12
2020-06-30	$2,445,356	198,648	+2.0%	Shares	Sole	2020-08-13
2020-03-31	$1,517,305	194,776	—	Shares	Sole	2020-05-06
No 13F history on record for this holder in this stock.