Mario Gabelli American Tower Corp Transaction History

Gamco Investors, Inc. Et Al

$9.45 Billion
Q3 2025

A detailed history of Mario Gabelli (Gamco Investors, Inc. Et Al) transactions in American Tower Corp stock. As of the latest transaction made, Gamco Investors, Inc. Et Al holds 25,291 shares of AMT stock, worth $4.56 Million. This represents 0.05% of its overall portfolio holdings.

Number of Shares

25,291

Previous 27,581 8.3%

Holding current value

$4.56 Million

Previous $6.1 Million 20.21%

% of portfolio

0.05%

Previous 0.07%

32 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	SELL	$192.32 - $232.35 $440,412 - $532,081	-2,290 Reduced 8.3%	25,291 $4.86 Million
Q2 2025 Aug 13, 2025	BUY	$203.96 - $228.19 $51,397 - $57,503	252 Added 0.92%	27,581 $6.1 Million
Q1 2025 May 14, 2025	SELL	$173.46 - $217.6 $535,644 - $671,948	-3,088 Reduced 10.15%	27,329 $5.95 Million
Q4 2024 Feb 13, 2025	SELL	$179.4 - $232.01 $228,017 - $294,884	-1,271 Reduced 4.01%	30,417 $5.58 Million
Q3 2024 Nov 14, 2024	SELL	$192.27 - $242.73 $83,829 - $105,830	-436 Reduced 1.36%	31,688 $7.37 Million

Q2 2024 Aug 13, 2024	SELL	$171.0 - $200.41 $34,029 - $39,881	-199 Reduced 0.62%	32,124 $6.24 Million
Q1 2024 May 14, 2024	SELL	$186.68 - $218.81 $176,972 - $207,431	-948 Reduced 2.85%	32,323 $6.39 Million
Q3 2023 Nov 08, 2023	BUY	$159.69 - $198.36 $5.01 Million - $6.22 Million	31,360 Added 1641.03%	33,271 $5.47 Million
Q2 2023 Aug 10, 2023	SELL	$182.0 - $211.26 $2,730 - $3,168	-15 Reduced 0.78%	1,911 $370,000
Q1 2023 May 12, 2023	SELL	$191.2 - $232.77 $2.79 Million - $3.4 Million	-14,596 Reduced 88.34%	1,926 $393,000
Q4 2022 Feb 13, 2023	SELL	$185.4 - $223.6 $1.08 Million - $1.31 Million	-5,840 Reduced 26.12%	16,522 $3.5 Million
Q3 2022 Nov 10, 2022	BUY	$213.72 - $281.52 $4.45 Million - $5.86 Million	20,805 Added 1336.22%	22,362 $4.8 Million
Q2 2022 Aug 12, 2022	SELL	$224.72 - $268.62 $155,281 - $185,616	-691 Reduced 30.74%	1,557 $398,000
Q1 2022 May 13, 2022	BUY	$226.87 - $286.38 $168,337 - $212,493	742 Added 49.27%	2,248 $565,000
Q4 2021 Feb 11, 2022	BUY	$257.53 - $292.5 $387,840 - $440,505	1,506 New	1,506 $441,000
Q3 2021 Nov 12, 2021	SELL	$265.41 - $303.62 $1.41 Million - $1.61 Million	-5,295 Closed	0 $0
Q2 2021 Aug 13, 2021	BUY	$240.06 - $272.79 $430,907 - $489,658	1,795 Added 51.29%	5,295 $1.43 Million
Q1 2021 May 14, 2021	BUY	$198.66 - $241.83 $59,598 - $72,549	300 Added 9.38%	3,500 $837,000
Q4 2020 Feb 05, 2021	SELL	$216.72 - $246.38 $2.48 Million - $2.82 Million	-11,440 Reduced 78.14%	3,200 $718,000
Q3 2020 Nov 06, 2020	BUY	$235.71 - $271.29 $261,638 - $301,131	1,110 Added 8.2%	14,640 $3.54 Million
Q2 2020 Aug 13, 2020	BUY	$206.97 - $267.39 $752,335 - $971,962	3,635 Added 36.74%	13,530 $3.5 Million
Q1 2020 May 14, 2020	SELL	$179.09 - $256.9 $707,584 - $1.02 Million	-3,951 Reduced 28.54%	9,895 $2.16 Million
Q4 2019 Feb 14, 2020	SELL	$205.69 - $229.82 $1.05 Million - $1.17 Million	-5,108 Reduced 26.95%	13,846 $3.18 Million
Q3 2019 Nov 01, 2019	BUY	$202.3 - $241.07 $41,269 - $49,178	204 Added 1.09%	18,954 $4.19 Million
Q2 2019 Aug 02, 2019	BUY	$189.85 - $217.52 $169,725 - $194,462	894 Added 5.01%	18,750 $3.83 Million
Q1 2019 May 02, 2019	SELL	$156.74 - $197.06 $84,953 - $106,806	-542 Reduced 2.95%	17,856 $3.52 Million
Q4 2018 Jan 30, 2019	BUY	$140.68 - $167.63 $1.55 Million - $1.85 Million	11,026 Added 149.57%	18,398 $2.91 Million
Q3 2018 Nov 02, 2018	SELL	$140.38 - $151.17 $44,921 - $48,374	-320 Reduced 4.16%	7,372 $1.07 Million
Q2 2018 Aug 10, 2018	SELL	$135.1 - $144.26 $31,073 - $33,179	-230 Reduced 2.9%	7,692 $1.11 Million
Q1 2018 May 09, 2018	SELL	$133.0 - $147.7 $1.38 Million - $1.53 Million	-10,340 Reduced 56.62%	7,922 $1.15 Million
Q4 2017 Feb 02, 2018	SELL	$135.86 - $152.72 $59,914 - $67,349	-441 Reduced 2.36%	18,262 $2.61 Million
Q3 2017 Nov 01, 2017	BUY	$134.74 - $148.05 $2.52 Million - $2.77 Million	18,703	18,703 $2.56 Million

Others Institutions Holding AMT

# of Institutions

2,099

Shares Held

422M

Call Options Held

2.97M

Put Options Held

1.61M

View Full List

About AMERICAN TOWER CORP

Ticker AMT
Exchange NYSE
Sector Real Estate
Industry REIT—Specialty
Shares Outstandng 465,587,008
Market Cap $84B
Description
American Tower Corporation, one of the largest global REITs, is a leading independent owner, operator and developer of multitenant communications real estate with a portfolio of approximately 219,000 communications sites. For more information about American Tower, please visit the ?Earnings Materials? and ?Investor Presentations? sections of our...

More about AMT

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