SEC Form 4 · Updated Daily

AMT

— AMERICAN TOWER CORPORATION Ownership

Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.

Financials Ownership

Current Reporting Owners

Owner	Role	Shares Owned	As Of	Last Activity
Vondran Steven O	Director · Officer	108,902	2026-03-11	F
Smith Rodney M	Officer	92,542	2026-03-11	F
Noel Eugene M	Officer	34,542	2026-03-11	F
Font Juan	Officer	28,352	2026-03-11	F
Dowling Ruth T	Officer	27,711	2026-07-29	S
Meyer Robert Joseph	Officer	21,428	2026-07-29	S
REEVE PAMELA D A	Director	21,089	2026-05-28	G
Rossi Richard C	Officer	17,518	2026-03-11	F
MACNAB CRAIG	Director	15,315	2026-03-10	A
HORMATS ROBERT D	Director	9,597	2026-03-10	A
Lieblein Grace	Director	9,141	2026-03-10	A
Kalathur Rajesh	Director	7,765	2026-08-21	P
Tanner Bruce L	Director	6,940	2026-03-10	A
REILLY EUGENE F	Director	6,898	2026-03-10	A
Frank Kenneth R	Director	6,188	2026-03-10	A
Clarke Teresa Hillary	Director	5,307	2026-03-10	A
Chambliss Kelly C	Director	4,426	2026-03-10	A
Ray Neville R	Director	2,265	2026-03-10	A

Recent Filings

Date	Owner	Activity	Shares	Price	Owned After
2026-08-21	Kalathur Rajesh	Open-market buy	2,829	$177.00	7,765
2026-07-29	Dowling Ruth T	Open-market sale	1,106	$174.96	27,711
2026-07-29	Meyer Robert Joseph	Open-market sale	5,000	$178.89	21,428
2026-07-28	Dowling Ruth T	Open-market sale	685	$169.54	28,817
2026-06-01	Meyer Robert Joseph	Tax withholding	153	$187.53	26,286
2026-05-28	REEVE PAMELA D A	Gift	810	$0.00	21,089
2026-04-29	Dowling Ruth T	Open-market sale	416	$177.54	29,461
2026-04-28	Dowling Ruth T	Open-market sale	556	$178.48	29,877
2026-03-11	Vondran Steven O	Tax withholding	2,158	$182.85	108,902
2026-03-11	Noel Eugene M	Tax withholding	719	$182.85	34,542
2026-03-11	Dowling Ruth T	Tax withholding	863	$182.85	30,433
2026-03-11	Meyer Robert Joseph	Tax withholding	684	$182.85	26,439
2026-03-11	Smith Rodney M	Tax withholding	1,295	$182.85	92,542
2026-03-11	Font Juan	Tax withholding	928	$182.85	28,352
2026-03-11	Rossi Richard C	Tax withholding	684	$182.85	17,518
2026-03-10	Frank Kenneth R	Grant / award	1,209	$0.00	6,188
2026-03-10	Lieblein Grace	Grant / award	1,209	$0.00	9,141
2026-03-10	Tanner Bruce L	Grant / award	1,209	$0.00	6,940
2026-03-10	REILLY EUGENE F	Grant / award	1,209	$0.00	6,898
2026-03-10	Ray Neville R	Grant / award	1,209	$0.00	2,265
2026-03-10	REEVE PAMELA D A	Grant / award	1,209	$0.00	21,899
2026-03-10	Clarke Teresa Hillary	Grant / award	1,209	$0.00	5,307
2026-03-10	HORMATS ROBERT D	Grant / award	1,209	$0.00	9,597
2026-03-10	Kalathur Rajesh	Open-market buy	2,671	$185.30	4,936
2026-03-10	Kalathur Rajesh	Grant / award	1,209	$0.00	2,265
2026-03-10	MACNAB CRAIG	Grant / award	1,209	$0.00	15,315
2026-03-10	Chambliss Kelly C	Grant / award	1,209	$0.00	4,426
2026-03-10	Vondran Steven O	Tax withholding	15,269	$186.12	111,060
2026-03-10	Vondran Steven O	Grant / award	20,955	$0.00	126,329
2026-03-10	Noel Eugene M	Tax withholding	2,498	$186.12	35,261
2026-03-10	Noel Eugene M	Grant / award	8,167	$0.00	37,759
2026-03-10	Dowling Ruth T	Tax withholding	6,629	$186.12	31,296
2026-03-10	Dowling Ruth T	Grant / award	6,878	$0.00	37,925
2026-03-10	Meyer Robert Joseph	Tax withholding	1,368	$186.12	27,123
2026-03-10	Meyer Robert Joseph	Grant / award	4,030	$0.00	28,491
2026-03-10	Smith Rodney M	Tax withholding	12,433	$186.12	93,837
2026-03-10	Smith Rodney M	Grant / award	10,531	$0.00	106,270
2026-03-10	Font Juan	Tax withholding	1,834	$186.12	29,280
2026-03-10	Font Juan	Grant / award	8,060	$0.00	31,114
2026-03-10	Rossi Richard C	Tax withholding	1,544	$186.12	18,202

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.