AMT

American Tower Corp /Ma/

Company with tickers: AMT

CIK

1053507

CUSIP

03027X100

Shares Outstanding

465,893,069

Website

https://www.americantower.com

Investor Relations

https://www.americantower.com/investor-relations

13F Activity (30d)

64 filings 18 filers

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

-1

Net shares bought

0.00%

Net buy value

-$173,091

Date	Insider	Role	Type	Shares	Price	Value	After
2026-06-01	Meyer Robert Joseph	SVP & Chief Accounting Officer	Tax	153	$187.53	$28,692	26,286
2026-05-28	REEVE PAMELA D A	Director	Gift	810	—	—	21,089
2026-04-29	Dowling Ruth T	EVP, Chief Admin Ofr, GC & Sec	Sell	416	$177.54	$73,857	29,461
2026-04-28	Dowling Ruth T	EVP, Chief Admin Ofr, GC & Sec	Sell	556	$178.48	$99,235	29,877
2026-04-27	Blanchett Paul	Chief Accounting Officer	Other	0	—	—	0
2026-03-11	Rossi Richard C	EVP & President, U.S. Tower	Tax	684	$182.85	$125,069	17,518
2026-03-11	Noel Eugene M	EVP & Chief Operating Officer	Tax	719	$182.85	$131,469	34,542
2026-03-11	Vondran Steven O	Director, President and CEO	Tax	2,158	$182.85	$394,590	108,902
2026-03-11	Meyer Robert Joseph	SVP & Chief Accounting Officer	Tax	684	$182.85	$125,069	26,439
2026-03-11	Smith Rodney M	EVP, CFO & Treasurer	Tax	1,295	$182.85	$236,791	92,542
2026-03-11	Dowling Ruth T	EVP, Chief Admin Ofr, GC & Sec	Tax	863	$182.85	$157,800	30,433
2026-03-11	Font Juan	SVP, Pres. & CEO, CoreSite	Tax	928	$182.85	$169,685	28,352
2026-03-10	Noel Eugene M	EVP & Chief Operating Officer	Tax	2,498	$186.12	$464,928	35,261
2026-03-10	Kalathur Rajesh	President, JD Financial & CIO	Award	1,209	—	—	2,265
2026-03-10	Font Juan	SVP, Pres. & CEO, CoreSite	Award	8,060	—	—	31,114
2026-03-10	Dowling Ruth T	EVP, Chief Admin Ofr, GC & Sec	Award	6,878	—	—	37,925
2026-03-10	Vondran Steven O	Director, President and CEO	Award	20,955	—	—	126,329
2026-03-10	Font Juan	SVP, Pres. & CEO, CoreSite	Tax	1,834	$186.12	$341,344	29,280
2026-03-10	Dowling Ruth T	EVP, Chief Admin Ofr, GC & Sec	Tax	6,629	$186.12	$1,233,789	31,296
2026-03-10	MACNAB CRAIG	Director	Award	1,209	—	—	15,315
2026-03-10	Vondran Steven O	Director, President and CEO	Tax	15,269	$186.12	$2,841,866	111,060
2026-03-10	Smith Rodney M	EVP, CFO & Treasurer	Award	10,531	—	—	106,270
2026-03-10	REILLY EUGENE F	Vice Chairman	Award	1,209	—	—	6,898
2026-03-10	Frank Kenneth R	Director	Award	1,209	—	—	6,188
2026-03-10	Clarke Teresa Hillary	Director	Award	1,209	—	—	5,307
2026-03-10	Kalathur Rajesh	President, JD Financial & CIO	Buy	2,671	$185.30	$494,936	4,936
2026-03-10	Rossi Richard C	EVP & President, U.S. Tower	Award	6,448	—	—	19,746
2026-03-10	Smith Rodney M	EVP, CFO & Treasurer	Tax	12,433	$186.12	$2,314,030	93,837
2026-03-10	Meyer Robert Joseph	SVP & Chief Accounting Officer	Award	4,030	—	—	28,491
2026-03-10	Ray Neville R	President, Technology	Award	1,209	—	—	2,265
2026-03-10	Rossi Richard C	EVP & President, U.S. Tower	Tax	1,544	$186.12	$287,369	18,202
2026-03-10	Meyer Robert Joseph	SVP & Chief Accounting Officer	Tax	1,368	$186.12	$254,612	27,123
2026-03-10	Lieblein Grace	Director	Award	1,209	—	—	9,141
2026-03-10	HORMATS ROBERT D	Director	Award	1,209	—	—	9,597
2026-03-10	REEVE PAMELA D A	Director	Award	1,209	—	—	21,899
2026-03-10	Tanner Bruce L	Director	Award	1,209	—	—	6,940
2026-03-10	Noel Eugene M	EVP & Chief Operating Officer	Award	8,167	—	—	37,759
2026-03-10	Chambliss Kelly C	Director	Award	1,209	—	—	4,426
2026-03-04	Vondran Steven O	Director, President and CEO	Convert	33,482	—	—	0
2026-03-04	Vondran Steven O	Director, President and CEO	Sell	1,773	$189.82	$336,551	105,374
2026-03-04	Dowling Ruth T	EVP, Chief Admin Ofr, GC & Sec	Sell	682	$188.51	$128,564	31,047
2026-03-04	Vondran Steven O	Director, President and CEO	Sell	15,084	$187.90	$2,834,284	123,772
2026-03-04	Vondran Steven O	Director, President and CEO	Sell	16,625	$188.82	$3,139,133	107,147
2026-03-04	Vondran Steven O	Director, President and CEO	Convert	33,482	$94.71	$3,171,080	138,856
2026-03-02	Noel Eugene M	EVP & Chief Operating Officer	Sell	5,242	$189.36	$992,625	65,559
2026-03-02	Noel Eugene M	EVP & Chief Operating Officer	Sell	7,378	$190.29	$1,403,960	58,181
2026-03-02	Noel Eugene M	EVP & Chief Operating Officer	Convert	41,209	—	—	0
2026-03-02	Noel Eugene M	EVP & Chief Operating Officer	Convert	41,209	$94.71	$3,902,904	70,801
2026-03-02	Noel Eugene M	EVP & Chief Operating Officer	Sell	21,604	$191.40	$4,135,006	36,577
2026-03-02	Noel Eugene M	EVP & Chief Operating Officer	Sell	6,985	$192.03	$1,341,330	29,592

Showing 1–50 of 612 transactions