STATE OF WISCONSIN INVESTMENT BOARD

Position in AMT — American Tower Corp /Ma/

CIK 854157 MADISON, WI

Position in AMT

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$43,264,943

+$676,051 QoQ

Shares Held

250,695

+3.3% QoQ

Ownership

0.054%

of shares outstanding

% of Portfolio

0.12%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

24 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Real Estate · as of Mar 31, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $218,615,372 across 15 REIT - Specialty names. AMT ranks #2 (19.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EQIX	Equinix Inc	53,781	$52,718,287
2	AMT	American Tower Corp /Ma/ This page	250,695	$43,264,943
3	DLR	Digital Realty Trust, Inc.	183,664	$33,098,089
4	CCI	Crown Castle Inc.	240,805	$19,579,854
5	IRM	Iron Mountain Inc	176,520	$18,029,752
6	WY	Weyerhaeuser Co	613,647	$14,991,396
7	SBAC	Sba Communications Corp	64,834	$11,158,579
8	GLPI	Gaming & Leisure Properties, Inc.	168,339	$7,469,201

24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$43,264,943	250,695	+3.3%	Shares	Sole	2026-05-15
2025-12-31	$42,588,892	242,575	-3.7%	Shares	Sole	2026-02-17
2025-09-30	$48,424,060	251,789	-1.8%	Shares	Sole	2025-11-14
2025-06-30	$56,696,713	256,523	-2.3%	Shares	Sole	2025-08-14
2025-03-31	$57,137,625	262,581	-0.1%	Shares	Sole	2025-05-15
2024-12-31	$48,186,942	262,728	-7.4%	Shares	Sole	2025-02-14
2024-09-30	$65,963,783	283,642	+6.0%	Shares	Sole	2024-11-14
2024-06-30	$52,029,888	267,671	+6.2%	Shares	Sole	2024-08-14
2024-03-31	$49,795,446	252,014	+2.7%	Shares	Sole	2024-05-14
2023-12-31	$52,970,475	245,370	-1.1%	Shares	Sole	2024-02-12
2023-09-30	$40,779,324	247,974	-31.0%	Shares	Sole	2023-11-14
2023-06-30	$69,664,993	359,209	-4.9%	Shares	Sole	2023-08-14
2023-03-31	$77,174,313	377,676	-8.5%	Shares	Sole	2023-05-15
2022-12-31	$87,484,620	412,936	-11.6%	Shares	Sole	2023-02-14
2022-09-30	$100,257,600	466,966	-2.5%	Shares	Sole	2022-11-14
2022-06-30	$122,404,862	478,911	+4.7%	Shares	Sole	2022-08-15
2022-03-31	$114,953,247	457,580	-22.0%	Shares	Sole	2022-05-13
2021-09-30	$155,641,732	586,420	+6.8%	Shares	Sole	2021-11-12
2021-06-30	$148,371,963	549,241	+9.0%	Shares	Sole	2021-08-12
2021-03-31	$120,513,970	504,116	-0.8%	Shares	Sole	2021-05-17
2020-12-31	$114,024,108	507,993	-11.0%	Shares	Sole	2021-02-03
2020-09-30	$137,904,305	570,489	-1.2%	Shares	Sole	2020-11-16
2020-06-30	$149,337,616	577,619	-6.8%	Shares	Sole	2020-08-12
2020-03-31	$134,888,286	619,464	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.