22 insiders reported 105 Form 4 transactions for AMERICAN TOWER CORP /MA/ (AMT) over the past 18 months (most recent 2026-07-31). Recent activity: Meyer Robert Joseph (SVP & Advisor to the CFO) Sell 5,000 shares, Dowling Ruth T (EVP, Chief Admin Ofr, GC & Sec) Sell 685 shares, Dowling Ruth T (EVP, Chief Admin Ofr, GC & Sec) Sell 1,106 shares, Meyer Robert Joseph (SVP & Advisor to the CFO) Sell 153 shares, REEVE PAMELA D A (Director) Sell 810 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-31 | Meyer Robert Joseph | SVP & Advisor to the CFO | Sell | 5,000 | $894,450 |
| 2026-07-30 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sell | 685 | $116,135 |
| 2026-07-30 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sell | 1,106 | $193,506 |
| 2026-06-03 | Meyer Robert Joseph | SVP & Advisor to the CFO | Sell | 153 | $28,692 |
| 2026-06-01 | REEVE PAMELA D A | Director | Sell | 810 | $0 |
| 2026-04-30 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sell | 556 | $99,235 |
| 2026-04-30 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sell | 416 | $73,857 |
| 2026-03-12 | Kalathur Rajesh | Director | Buy | 1,209 | $0 |
| 2026-03-12 | Ray Neville R | Director | Buy | 1,209 | $0 |
| 2026-03-12 | Lieblein Grace | Director | Buy | 1,209 | $0 |
| 2026-03-12 | Clarke Teresa Hillary | Director | Buy | 1,209 | $0 |
| 2026-03-12 | HORMATS ROBERT D | Director | Buy | 1,209 | $0 |
| 2026-03-12 | REEVE PAMELA D A | Director | Buy | 1,209 | $0 |
| 2026-03-12 | Kalathur Rajesh | Director | Buy | 2,671 | $494,936 |
| 2026-03-12 | Tanner Bruce L | Director | Buy | 1,209 | $0 |
| 2026-03-12 | REILLY EUGENE F | Director | Buy | 1,209 | $0 |
| 2026-03-12 | Chambliss Kelly C | Director | Buy | 1,209 | $0 |
| 2026-03-12 | Rossi Richard C | EVP & President, U.S. Tower | Buy | 6,448 | $0 |
| 2026-03-12 | Rossi Richard C | EVP & President, U.S. Tower | Sell | 1,544 | $287,369 |
| 2026-03-12 | Rossi Richard C | EVP & President, U.S. Tower | Sell | 684 | $125,069 |
| 2026-03-12 | Smith Rodney M | EVP, CFO & Treasurer | Buy | 10,531 | $0 |
| 2026-03-12 | Smith Rodney M | EVP, CFO & Treasurer | Sell | 12,433 | $2.3M |
| 2026-03-12 | Smith Rodney M | EVP, CFO & Treasurer | Sell | 1,295 | $236,791 |
| 2026-03-12 | Noel Eugene M | EVP & Chief Operating Officer | Buy | 8,167 | $0 |
| 2026-03-12 | Noel Eugene M | EVP & Chief Operating Officer | Sell | 2,498 | $464,928 |
Source: SEC Form 4 filings · as of 2026-07-31