Stocks › AMT
AMERICAN TOWER CORP /MA/
AMT·NYSE·
United States·USD
United States·USD$162.26
+0.06 (+0.04%)
Close · Oct 5, 2026 · Close Prices from Tiingo.com
AMT
AMERICAN TOWER CORP /MA/ · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
AMTS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of AMT by members of U.S. Congress · 185 on record · 17 in the last 12 months
Whale Activity
Position changes in AMT reported for 2026-09-30 by 1 tracked institutional filer
- Increased0
- New0
- Held0
- Decreased0
- Closed0
- No prior filing1
| Filer | Shares | Value | Change |
|---|---|---|---|
| ABLES, IANNONE, MOORE & ASSOCIATES, INC. | 23.2K | $3.8M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by AMT insiders, by quarter · Form 4
Recent Insider Transactions
2,463 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Kalathur RajeshDirector · Director | Purchase | +2,829 | $177.00 | $501K | Aug 21, 2026 | Form 4 ↗ |
| Meyer Robert JosephSVP & Advisor to the CFO | Sale | −5,000 | $178.89 | $894K | Jul 29, 2026 | Form 4 ↗ |
| Dowling Ruth TEVP, Chief Admin Ofr, GC & Sec | Sale | −1,106 | $174.96 | $194K | Jul 29, 2026 | Form 4 ↗ |
| Dowling Ruth TEVP, Chief Admin Ofr, GC & Sec | Sale | −685 | $169.54 | $116K | Jul 28, 2026 | Form 4 ↗ |
| Meyer Robert JosephSVP & Advisor to the CFO | Tax withholding | −153 | $187.53 | $29K | Jun 1, 2026 | Form 4 ↗ |
| REEVE PAMELA D ADirector | Gift | −810 | $0.00 | $0 | May 28, 2026 | Form 4 ↗ |
| Dowling Ruth TEVP, Chief Admin Ofr, GC & Sec | Sale | −416 | $177.54 | $74K | Apr 29, 2026 | Form 4 ↗ |
| Dowling Ruth TEVP, Chief Admin Ofr, GC & Sec | Sale | −556 | $178.48 | $99K | Apr 28, 2026 | Form 4 ↗ |
| Rossi Richard CEVP & President, U.S. Tower | Tax withholding | −684 | $182.85 | $125K | Mar 11, 2026 | Form 4 ↗ |
| Font JuanSVP, Pres. & CEO, CoreSite | Tax withholding | −928 | $182.85 | $170K | Mar 11, 2026 | Form 4 ↗ |
| Smith Rodney MEVP, CFO & Treasurer | Tax withholding | −1,295 | $182.85 | $237K | Mar 11, 2026 | Form 4 ↗ |
| Meyer Robert JosephSVP & Chief Accounting Officer | Tax withholding | −684 | $182.85 | $125K | Mar 11, 2026 | Form 4 ↗ |
| Dowling Ruth TEVP, Chief Admin Ofr, GC & Sec | Tax withholding | −863 | $182.85 | $158K | Mar 11, 2026 | Form 4 ↗ |
| Noel Eugene MEVP & Chief Operating Officer | Tax withholding | −719 | $182.85 | $131K | Mar 11, 2026 | Form 4 ↗ |
| Vondran Steven OPresident and CEO · Director | Tax withholding | −2,158 | $182.85 | $395K | Mar 11, 2026 | Form 4 ↗ |
| Rossi Richard CEVP & President, U.S. Tower | Tax withholding | −1,544 | $186.12 | $287K | Mar 10, 2026 | Form 4 ↗ |
| Rossi Richard CEVP & President, U.S. Tower | Grant / award | +6,448 | $0.00 | $0 | Mar 10, 2026 | Form 4 ↗ |
| Font JuanSVP, Pres. & CEO, CoreSite | Tax withholding | −1,834 | $186.12 | $341K | Mar 10, 2026 | Form 4 ↗ |
| Font JuanSVP, Pres. & CEO, CoreSite | Grant / award | +8,060 | $0.00 | $0 | Mar 10, 2026 | Form 4 ↗ |
| Smith Rodney MEVP, CFO & Treasurer | Tax withholding | −12.4K | $186.12 | $2.3M | Mar 10, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding AMT · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD REAL ESTATE INDEX FUND VANGUARD SPECIALIZED FUNDS | 17.7M | $3.07B | 4.20% | Jul 31, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 14.8M | $2.42B | 0.11% | Jun 30, 2026 |
| VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS | 12.1M | $1.97B | 0.12% | Jun 30, 2026 |
| Fidelity 500 Index Fund Fidelity Concord Street Trust | 6.0M | $1.12B | 0.13% | May 31, 2026 |
| iShares Core S&P 500 ETF iShares Trust | 6.4M | $1.05B | 0.12% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | 5.6M | $923.6M | 0.12% | Jun 30, 2026 |
| VANGUARD VALUE INDEX FUND VANGUARD INDEX FUNDS | 4.4M | $725.8M | 0.29% | Jun 30, 2026 |
| Lazard Global Listed Infrastructure Portfolio LAZARD FUNDS INC | 3.4M | $560.5M | 4.51% | Jun 30, 2026 |
| VANGUARD REAL ESTATE II INDEX FUND VANGUARD FIXED INCOME SECURITIES FUNDS | 3.1M | $539.5M | 4.92% | Jul 31, 2026 |
| Real Estate Securities Fund Principal Funds, Inc | 3.0M | $523.2M | 7.45% | Jul 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list AMT's shares (CUSIP 03027X100), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
No 13D/13G beneficial-ownership filings on record.
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming american tower as client
- KEARNEY, DONOVAN & MCGEEAMERICAN TOWER CORPORATION · 2026 Q2 · TAX, COM, TRD, FIN$15K
Filing ↗ - AMERICAN TOWER CORPORATIONAMERICAN TOWER CORPORATION · 2026 Q2 · TAX, TEC, COM, FIN$290K
Filing ↗ - CAPITOL TAX PARTNERS, LLPAMERICAN TOWER CORPORATION · 2026 Q2 · TAX$50K
Filing ↗ - BROWNSTEIN HYATT FARBER SCHRECK, LLPAMERICAN TOWER CORPORATION · 2026 Q2 · TAX, TEC$80K
Filing ↗ - AMERICAN TOWER CORPORATIONAMERICAN TOWER CORPORATION · 2026 Q1 · TAX, TEC, COM, FIN$2.1M
Filing ↗
Government Contracts
Federal awards to american tower · USAspending
$39KAwarded · 1 contract on record
- Department of AgricultureFIRM-FIXED PRICE. TOWER SITE RENTAL AT ATC SITE: EL INDIO (309786). USDA LEASE (#752129). TO SUPPORT USDA LAND MOBILE RADIO NETWORK$39K
Mar 1, 2025 · ↗
U.S. Patents
Recent USPTO applications naming AMERICAN TOWER CORP /MA/
No USPTO patent applications found for AMERICAN TOWER CORP /MA/.
Annual Financials
From AMT's 10-K filings · XBRL
No annual XBRL figures on record for AMT. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in AMT's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 5.02, 8.01, 9.01Officer / director change · Other eventsSep 18, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.03, 9.01Material agreement · Direct financial obligationSep 14, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsSep 9, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsJul 28, 2026
EDGAR ↗ - 8-K · Items 8.01Other eventsJun 4, 2026
EDGAR ↗ - 8-K · Items 8.01Other eventsJun 2, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.03, 9.01Material agreement · Direct financial obligationMay 27, 2026
EDGAR ↗ - 8-K · Items 5.02, 5.07, 8.01, 9.01Officer / director change · Shareholder vote · Other eventsMay 21, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsMay 19, 2026
EDGAR ↗ - 8-K · Items 1.01, 2.03Material agreement · Direct financial obligationMay 7, 2026
EDGAR ↗
About AMERICAN TOWER CORP /MA/
From SEC EDGAR company records
Industry (SIC 6798)Real Estate Investment Trusts
SectorFinancials
HeadquartersBOSTON, MA
IncorporatedDE
SEC CIK0001053507 ↗
Former namesAMERICAN TOWER SYSTEMS CORP