STATE OF WISCONSIN INVESTMENT BOARD

CIK

854157

City

MADISON

State / Country

Stock

FORM — Formfactor Inc

Top Portfolio Positions

2,288 positions · $37,287,500,173 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
NVDA	Nvidia Corp Technology	13,031,252	$2,272,650,348	6.09%
AAPL	Apple Inc. Technology	7,905,859	$2,006,427,955	5.38%
MSFT	Microsoft Corp Technology	3,801,033	$1,407,028,385	3.77%
AMZN	Amazon Com Inc Consumer Cyclical	5,170,390	$1,076,837,125	2.89%
GOOGL	Alphabet Inc. Communication Services	3,128,058	$899,504,358	2.41%
AVGO	Broadcom Inc. Technology	2,456,462	$760,299,553	2.04%
META	Meta Platforms, Inc. Communication Services	1,167,125	$667,747,226	1.79%
TSLA	Tesla, Inc. Consumer Cyclical	1,514,635	$563,065,561	1.51%
JPM	Jpmorgan Chase & Co Financial Services	1,457,420	$428,714,667	1.15%
LLY	ELI LILLY & Co Healthcare	431,162	$396,569,872	1.06%

52 quarters · across all stocks

Compact Export CSV

25 of 25 shown

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$5,320,968	54,861	-25.2%	Shares	Sole	2026-05-15
2025-12-31	$4,093,415	73,385	-11.6%	Shares	Sole	2026-02-17
2025-09-30	$3,023,442	83,016	-18.2%	Shares	Sole	2025-11-14
2025-06-30	$3,493,372	101,522	+17.1%	Shares	Sole	2025-08-14
2025-03-31	$2,452,941	86,707	+13.1%	Shares	Sole	2025-05-15
2024-12-31	$3,374,052	76,683	+0.1%	Shares	Sole	2025-02-14
2024-09-30	$3,522,404	76,574	0.0%	Shares	Sole	2024-11-14
2024-06-30	$4,635,024	76,574	-25.9%	Shares	Sole	2024-08-14
2024-03-31	$4,713,807	103,305	-17.0%	Shares	Sole	2024-05-14
2023-12-31	$5,191,935	124,477	+36.2%	Shares	Sole	2024-02-12
2023-09-30	$3,193,481	91,399	-24.2%	Shares	Sole	2023-11-14
2023-06-30	$4,123,646	120,504	-2.9%	Shares	Sole	2023-08-14
2023-03-31	$3,952,807	124,107	-18.5%	Shares	Sole	2023-05-15
2022-12-31	$3,383,761	152,216	-3.1%	Shares	Sole	2023-02-14
2022-09-30	$3,936,632	157,151	+5.4%	Shares	Sole	2022-11-14
2022-06-30	$5,773,790	149,078	+0.5%	Shares	Sole	2022-08-15
2022-03-31	$6,232,292	148,282	+11.1%	Shares	Sole	2022-05-13
2021-12-31	$6,102,797	133,482	-18.3%	Shares	Sole	2022-02-11
2021-09-30	$6,099,050	163,382	-8.0%	Shares	Sole	2021-11-12
2021-06-30	$6,478,285	177,682	0.0%	Shares	Sole	2021-08-12
2021-03-31	$8,015,235	177,682	-8.8%	Shares	Sole	2021-05-17
2020-12-31	$8,379,521	194,782	-23.3%	Shares	Sole	2021-02-03
2020-09-30	$6,334,264	254,082	+20.1%	Shares	Sole	2020-11-16
2020-06-30	$6,205,700	211,582	+1.1%	Shares	Sole	2020-08-12
2020-03-31	$4,206,484	209,382	—	Shares	Sole	2020-05-06
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