STATE OF WISCONSIN INVESTMENT BOARD

CIK

854157

City

MADISON

State / Country

Stock

FSS — Federal Signal Corp /De/

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	$8,848,339	81,823	-5.8%	Shares	Sole	2026-05-15
2025-12-31	$9,428,218	86,824	-8.7%	Shares	Sole	2026-02-17
2025-09-30	$11,319,518	95,130	-2.7%	Shares	Sole	2025-11-14
2025-06-30	$10,401,277	97,738	-6.2%	Shares	Sole	2025-08-14
2025-03-31	$7,667,219	104,245	-0.8%	Shares	Sole	2025-05-15
2024-12-31	$9,711,574	105,115	+1.8%	Shares	Sole	2025-02-14
2024-09-30	$9,647,128	103,222	-7.6%	Shares	Sole	2024-11-14
2024-06-30	$9,348,783	111,734	+1.5%	Shares	Sole	2024-08-14
2024-03-31	$9,338,925	110,038	-8.5%	Shares	Sole	2024-05-14
2023-12-31	$9,233,433	120,321	+26.0%	Shares	Sole	2024-02-12
2023-09-30	$5,703,259	95,484	-5.5%	Shares	Sole	2023-11-14
2023-06-30	$6,468,374	101,021	-2.7%	Shares	Sole	2023-08-14
2023-03-31	$5,629,979	103,855	-10.9%	Shares	Sole	2023-05-15
2022-12-31	$5,416,403	116,557	-3.1%	Shares	Sole	2023-02-14
2022-09-30	$4,489,446	120,296	-3.3%	Shares	Sole	2022-11-14
2022-06-30	$4,426,397	124,337	-65.5%	Shares	Sole	2022-08-15
2022-03-31	$12,158,437	360,250	0.0%	Shares	Sole	2022-05-13
2021-12-31	$15,613,235	360,250	-8.0%	Shares	Sole	2022-02-11
2021-09-30	$15,121,661	391,550	-7.8%	Shares	Sole	2021-11-12
2021-06-30	$17,087,692	424,750	0.0%	Shares	Sole	2021-08-12
2021-03-31	$16,267,925	424,750	0.0%	Shares	Sole	2021-05-17
2020-12-31	$14,088,957	424,750	-12.5%	Shares	Sole	2021-02-03
2020-09-30	$14,193,562	485,250	+1.6%	Shares	Sole	2020-11-16
2020-06-30	$14,200,534	477,650	0.0%	Shares	Sole	2020-08-12
2020-03-31	$13,030,292	477,650	—	Shares	Sole	2020-05-06
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