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144 ·Filed Oct 28, 2026

AMT

AMERICAN TOWER CORP /MA/
NEUTRAL
Impact 2/10
Horizondays Processed2d 4h ago SEC0001950047-26-010458
Form 144: notice of proposed sale of securities
Actionable Insight • Neutral

This is a routine insider sale of vested RSU shares by an officer. The amount is negligible relative to market cap. No material read-through for the stock. Monitor for any larger insider sales or changes in insider trading patterns.

DirectionNeutral
Confidencehigh
Horizondays
Latest settled: T+1d
AMT ▲ +1.02% at T+1d
NEUTRAL call +1.02% · α vs SPY +2.80% · entry $185.88 → $187.78
Next anchor: T+5d in 4d
Entry = T+0 close
Oct 28, 2026
via day close
T+1d
+1.02%
call +1.02% · α +2.80%
$187.78
settled yesterday
T+5d
Pending
in 4d
T+20d
Pending
in 25d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

Ruth T. Dowling, an officer of American Tower, filed a Form 144 notice of intent to sell 1,578 shares of common stock with an approximate market value of $290,084. The shares were acquired through vesting of restricted stock units between March 2023 and March 2025. The sale is small relative to the company's $87.7B market cap and appears to be a routine diversification sale by an officer.

Key Facts

  • Ruth T. Dowling, an officer of American Tower, filed Form 144 to sell 1,578 shares of common stock.
  • Estimated market value of the proposed sale is approximately $290,084 based on the filing date price.
  • Shares were acquired upon vesting of restricted stock units from March 10, 2023 through March 10, 2025.
  • The sale represents a very small fraction of the company's $87.7B market capitalization.
  • The filing indicates a 10b5-1 plan may be in place for the sales.

Financial Impact

Proposed sale of 1,578 shares valued at ~$290,084, immaterial relative to $87.7B market cap.

dilution

Risk Factors

  • Form 144 is only an intent to sell; the sale may not be executed.
  • No additional context on the officer's total holdings or recent trading history beyond this filing.

Market Snapshot

Exchange
NYSE
Sector
Real Estate Investment Trusts
Analyst Consensus
86% bullish (29 analysts)

Investment Themes

Real Estate

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
144 Filing (Primary)0001950047-26-010458
Document: 0001950047-26-010458-index.html0001950047-26-010458
Document: 0001950047-26-010458.txt0001950047-26-010458
24 reports for AMT
Performance horizon
33% Hit rate @ T+5 1 of 3 directional calls Went positive at some point 1 of 3 best @ T+5▲ +2.25%Aug 1, 2026
Filters
Rows
Reports for AMT, sortable and filterable
TypeNow
Oct 30, 2026
today
144
NEUTRAL ★ 2/10
$187.93awaiting T+5awaiting T+5$185.88 (−1.09%)
Oct 28, 2026
2d ago
144
NEUTRAL ★ 2/10
$185.88awaiting T+5awaiting T+5$185.88 (+0.00%)
Oct 27, 2026
3d ago
8-K
NEUTRAL ★ 5/10
$183.83awaiting T+5awaiting T+5$185.88 (+1.12%)
Oct 23, 2026
7d ago
Institutional Cluster
BULLISH ★ 4/10
$188.97 $187.78▼ −0.63%▼ −0.07%$185.88 (−1.64%)
Oct 22, 2026
9d ago
Insider Cluster
NEUTRAL ★ 2/10
$188.97 $187.78▼ −0.63%▼ −0.07%$185.88 (−1.64%)
Sep 18, 2026
6w ago
8-K
NEUTRAL ★ 3/10
$173.98 $169.03▼ −2.85%▼ −4.11%$185.88 (+6.84%)
Sep 14, 2026
6w ago
8-K
NEUTRAL ★ 4/10
$177.71 $175.25▼ −1.38%▼ −3.51%$185.88 (+4.60%)
Sep 9, 2026
7w ago
424B5
NEUTRAL ★ 4/10
$175.43 $176.39▲ +0.55%▲ +1.20%$185.88 (+5.96%)
Aug 25, 2026
9w ago
Insider Buy
NEUTRAL ★ 4/10
$175.73 $172.92▼ −1.60%▼ −1.48%$185.88 (+5.78%)
Aug 1, 2026
12w ago
Institutional Cluster
BEARISH ★ 6/10
$173.00 $169.11▲ +2.25%▲ +4.28%$185.88 (−7.45%)
Showing 10 of 24

US Market Status

Market Closed · Opens Mon (36h 25m)

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Report published Oct 28, 2026