NYSE · AMT
American Tower Corp /ma/
Smart money pulse
What insiders and funds are doing
- account_balance729 funds bought, 721 sold in the quarter ended Jun 30, 2026. 178 were new holders.
- info1 real insider sale in 12 months. $112K in total, not counting planned sales.
Pulse runs from −100 (everyone selling) to +100 (everyone buying). Half comes from insiders: real buyers vs. real sellers in the last 90 days (Form 4). Half comes from funds: funds that bought vs. funds that sold last quarter (13F). 13F is a snapshot of long positions on the last day of the quarter, filed up to 45 days later. It does not show short positions or trades since then. This is data, not advice.
Who owns it
1752 funds report owning AMT , down from 1760
Last quarter
Who bought and who sold
Change in shares held, biggest funds first. Bars stop at ±100%.
Insider trades · last 12 months
Real buys and sales
Showing 1 real trades. Hidden: 2 planned 10b5-1 sales. Those happen on a schedule and say little about what an insider thinks. Bigger dot means a bigger trade.
Showing every filing. Dashed circles are routine: grants, tax withholding, option exercises and planned sales.
Top holders
Biggest funds in AMT
| Fund | Owns | Value | Change |
|---|---|---|---|
| California State Teachers Retirement System | — | $715K | +17056% |
| BlackRock, Inc. | — | $7.49B | +2% |
| Vanguard Capital Management LLC | — | $4.98B | +0% |
| Vanguard Portfolio Management LLC | — | $4.56B | +1% |
| State Street Corp | — | $3.65B | +3% |
"Owns" is shares reported divided by shares outstanding.