Calamos Advisors LLC

Position in AMT — American Tower Corp /Ma/

CIK 1316507 NAPERVILLE, IL

Position in AMT

as of Jun 30, 2026 · filed Jul 31, 2026 Compact

Position Value

$10,840,765

-$14,480,172 QoQ

Shares Held

66,276

-54.8% QoQ

Ownership

0.014%

of shares outstanding

% of Portfolio

0.06%

of 13F equity value

Holder Rank

#346

of 1,735 holders

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Real Estate · as of Jun 30, 2026

Calamos Advisors LLC holds $46,477,784 across 4 REIT - Specialty names. AMT ranks #3 (23.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EQIX	Equinix Inc	12,628	$13,163,300
2	DLR	Digital Realty Trust, Inc.	71,653	$12,867,445
3	AMT	American Tower Corp /Ma/ This page	66,276	$10,840,765
4	CCI	Crown Castle Inc.	126,849	$9,606,274

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$10,840,765	66,276	-54.8%	Shares	Sole	2026-07-31
2026-03-31	$25,320,937	146,720	+1.8%	Shares	Sole	2026-05-04
2025-12-31	$25,308,239	144,149	-1.7%	Shares	Sole	2026-01-29
2025-09-30	$28,191,227	146,585	+0.3%	Shares	Sole	2025-10-20
2025-06-30	$32,303,620	146,157	+0.1%	Shares	Sole	2025-08-08
2025-03-31	$31,781,350	146,054	+0.7%	Shares	Sole	2025-04-29
2024-12-31	$26,589,497	144,973	+0.3%	Shares	Sole	2025-01-24
2024-09-30	$33,619,106	144,561	-0.4%	Shares	Sole	2024-11-07
2024-06-30	$28,213,673	145,147	-1.4%	Shares	Sole	2024-07-25
2024-03-31	$29,076,751	147,157	-1.0%	Shares	Sole	2024-05-08
2023-12-31	$32,080,847	148,605	-0.5%	Shares	Sole	2024-01-31
2023-09-30	$24,565,541	149,380	+0.3%	Shares	Sole	2023-10-26
2023-06-30	$28,882,514	148,925	+0.1%	Shares	Sole	2023-07-28
2023-03-31	$30,396,392	148,754	-6.0%	Shares	Sole	2023-05-04
2022-12-31	$33,522,819	158,231	-8.3%	Shares	Sole	2023-01-26
2022-09-30	$37,054,428	172,587	+0.1%	Shares	Sole	2022-10-24
2022-06-30	$44,076,751	172,451	+1.7%	Shares	Sole	2022-08-01
2022-03-31	$42,614,448	169,630	+10.8%	Shares	Sole	2022-05-03
2021-09-30	$40,637,455	153,112	+5.1%	Shares	Sole	2021-10-26
2021-06-30	$39,339,677	145,627	+13.1%	Shares	Sole	2021-07-22
2021-03-31	$30,776,823	128,741	+1.4%	Shares	Sole	2021-04-12
2020-12-31	$28,485,994	126,909	-2.0%	Shares	Sole	2021-01-27
2020-09-30	$31,304,276	129,501	-10.5%	Shares	Sole	2020-10-26
2020-06-30	$37,421,338	144,741	-2.8%	Shares	Sole	2020-07-27
2020-03-31	$32,419,055	148,882	—	Shares	Sole	2020-04-28
No filing history on record for this holder in this stock.