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9 /100
COMPONENT-LIMITED
Score updated Oct 13, 2026

AMT — American Tower Corporation Dilution Risk Tracker

Track AMT dilution risk with DilutionWatch's stock tracker. DilutionScore™ measures dilution risk across 5 factors — lower scores indicate higher risk of share dilution.

⚠️ Not financial advice. Do your own research before making any investment decisions.

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As of October 13, 2026, American Tower Corporation (AMT) has a DilutionWatch DilutionScore of 9/100, rated LOW dilution risk. This is a component-limited score because one or more material inputs are unavailable or not applicable. American Tower Corporation has a market capitalization of $85.07B, 465.96M shares outstanding, 1760 institutional holders tracked.

This page includes automatically generated factual summaries from DilutionWatch data. It is not financial advice, not investment research, and not a recommendation. Do your own research. Read the full disclaimer and terms of service.

Score Breakdown

📋 Offering Ability
20
💰Cash Runway—
📊 Float Risk
0
⚠️ Warrant Exposure
15
🔄 Convertible Debt
15

Dilution Forecast

☀️
Clear
No significant dilution signals
model est. 0%
No significant dilution signals detected for AMT.
🔔 Track AMT — Get forecast alerts →

Market Data

Market Cap$85.07B
Shares Outstanding465.96M
Float464.39M
Cash$1.78B
Debt$19.27B
Short InterestN/A

Source-Backed Evidence Depth

This public preview uses stored DilutionWatch fields and linked SEC/market records only. Missing values are not estimated.

FieldCurrent ValueBasis
DilutionScore9/100DilutionWatch score record
Shares Outstanding465.96MVerified float table or market cache
Public Float464.39MVerified float table or market cache
Market Cap$85.07BMarket data cache
Cash RunwayNot applicable / unavailableDilutionWatch score inputs
Shelf CapacityNone in current score inputsSEC-derived dilution fields
ATM CapacityNone in current score inputsSEC-derived dilution fields
Outstanding WarrantsNone in current score inputsSEC-derived dilution fields

Recent source-backed SEC insight records available on this page: 6.

Recent SEC source mix: 4 5, XBRL 1.

The page does not infer future share issuance, financing probability, cash needs, management intent, or price impact when source fields are absent.

Institutional Holdings

QoQ: ↓ 2.5% shares (2026Q1 vs prior)
1760 institutional holders · 526.88M shares
#1 VANGUARD CAPITAL MANAGEMENT LLC 60.72M shares
#2 BlackRock, Inc. 44.95M shares
#3 MORGAN STANLEY 29.43M shares
+ 17 more holders Sign up free to view →

Institutional holder totals are aggregated from ownership filings and may use a different share basis or reporting date than public float. They are not a reconciliation against tradeable float.

Short Interest

Short Interest7.35M
Days to Cover2.4
% of Float1.6%
FINRA data as of Sep 30, 2026

Recent SEC Activity

xbrl XBRL CONVERTIBLE 2020-02-25
4 INSIDER TRANSACTION 2026-03-12
4 INSIDER TRANSACTION 2026-03-12
4 INSIDER TRANSACTION 2026-03-12
4 INSIDER TRANSACTION 2026-03-12
Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual AMT Dilution Snapshot

American Tower Corporation (AMT) has a DilutionScore of 9/100, rated Low dilution risk. Score date: October 13, 2026.

This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.

DilutionScore History — Last 90 Days

AMT's DilutionScore has held steady at 9/100 (Low risk) for 89 consecutive days across the tracked period.

Period Score Risk Level Duration
Jul 16 – Oct 13, 20269/100LOW89 days

Score recalculated daily from SEC filings and market data. Sign up free for real-time score change alerts.

Share Dilution History

AMT shares outstanding have decreased 0.0% from 466.08M (Mar 2026) to 465.89M (May 2026). Each increase represents potential dilution to existing shareholders.

Date Shares Outstanding Public Float Change
May 18, 2026465.89M464.39M▼ 0.02%
May 02, 2026465.89M464.49M▼ 0.07%
Apr 29, 2026466.37M464.80M▲ 0.03%
Mar 22, 2026466.08M464.69M▼ 0.02%

Share counts sourced from verified regulatory filings. Increases indicate dilution events.

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Score Coverage Note