American Tower Corporation· AMT

🇺🇸 US · LargeSP500NYSE

Real EstateREIT - SpecialtyWebsite

Price: $175.25
Day: +1.30%
Mkt Cap: $81.66B
52W Range: $160.06 – $214.79
Volume: 1.97M
Beta: 0.91

D55D FrameworkQuarterly Data

Holdings Analysis

Insider activity, institutional flows, and fund ownership.

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American Tower Corporation

AMT|Real Estate|REIT - Specialty

Current price: $175

Smart Money

Dimension 5 of 5

Insider Activity, Q3 2026

Latest scored quarter, net flow, and top transactions by value

Net dollar flow-$1.2M

Net share flow-6.8K

Purchases0 ($0)

Sales3 ($1.2M)

Top Notable Transactions

Insider

Type

Value

Date

Noel Eugene M

Sale

$8.0M

Sep 10

Smith Rodney M

Sale

$6.9M

Apr 21

Sharma Amit

Sale

$5.9M

May 10

Institutional Ownership, Q1 2026

Ownership share, position changes, share flow, and top holders

Ownership92.5%

13F share flow-3.5%

Investors holding1.8K

+1023 adding-843 reducing

154

869

659

184

New 154Inc 869Red 659Closed 184

Top Institutional Holders

Institution

Value

Change

BLACKROCK, INC.

$7.8B

+1.8%

STATE STREET CORP

$3.7B

+1.9%

JPMORGAN CHASE & CO

$2.6B

+4.7%

GEODE CAPITAL MANAGEMENT, LLC

$2.4B

+3.0%

ETF & Mutual Fund Activity, Q2 2026

Latest meaningful quarter: fund-by-fund buying / unchanged / selling

Funds reporting329

Total shares held96.4M

Share flow-10.3%

82 buying69 selling

182

Buying 82Unchanged 182Selling 69

Top Fund Holders

Fund

Weight

Change

PARNASSUS INCOME FUNDS

1.7M

193.76%

ADAMS DIVERSIFIED EQUITY FUND, INC.

91.2K

21.87%

See the complete picture

The full 5D Framework: Business Quality · Peer Comparison · Valuation · Analyst Sentiment · Smart Money

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Generated August 5, 2026

For educational purposes only. Not financial advice. Data may be delayed or incomplete.

Smart Money Sentiment

AMT Smart Money Sentiment Score

A weighted 1-5 sentiment score across three smart money signals.

Smart Money

2.8/5

Neutral

Weighted across 3 components

Component Breakdown (3 of 3 available)

Insider Activity

40% weight

Institutional Flow

50% weight

-16

Fund Flow

10% weight

Overall Smart Money sentiment of 2.8/5 (Neutral) based on a weighted combination of 3 components. Insider activity uses a relative-baseline comparison against the stock's own history; institutional flow tracks position momentum and 13F share changes; fund flow measures ETF / mutual-fund buying vs selling. Higher scores indicate stronger bullish sentiment from professional investors.Last updated August 4, 2026.

Insider Trading Activity

Insider trading analysis comparing the latest quarter against the stock's own historical baseline.

Insider Activity for AMT

Net insider share flow by quarter (C-suite & director purchases minus sales)

Neutral

Routine insider selling in Q3 2026

3 sales totaling $1.2M (6.8K shares)

Share volume is well below the historical pace (0.2x average), insiders are holding more

Buying seen in 2 of 7 quarters

Notable Recent Transactions, AMT

Top 8 highest-value recent insider trades

Noel Eugene M

President

Sell

33,135 shares at $240.00

Sep 10, 2024$7.95M

Smith Rodney M

CFO

Sell

25,389 shares at $270.00

Apr 21, 2022$6.86M

Sharma Amit

CEO

Sell

23,623 shares at $248.81

May 10, 2021$5.88M

Vondran Steven O

CEO

Sell

21,537 shares at $230.00

Aug 2, 2024$4.95M

Puech Olivier

President

Sell

18,989 shares at $230.00

Sep 3, 2024$4.37M

Smith Rodney M

CFO

Sell

22,658 shares at $192.49

Feb 17, 2026$4.36M

Noel Eugene M

Officer

Sell

21,604 shares at $191.40

Mar 2, 2026$4.14M

Sharma Amit

CEO

Sell

16,454 shares at $247.99

May 10, 2021$4.08M

Institutional Ownership Analysis

Institutional ownership analysis with position momentum, 13F share flow, and ownership percentage trends.

Institutional Ownership Over Time for AMT

Total dollar value invested by institutions each quarter

Neutral

Mixed institutional activity in Q1 2026

92.5% institutional ownership

Slight accumulation: 1023 adding vs 843 reducing

13F shares decreased by 10.3%, a significant shift

Momentum improving from prior quarter

Position Changes

Q2 2026: how are institutions adjusting their positions?

+423 growing-1337 shrinkingNet: -914

366

300

1037

New (57)

Increased (366)

Reduced (300)

Closed (1037)

Top Institutional Holders, AMT

Largest 8 institutional positions by ownership percentage as of Q2 2026

PRINCIPAL FINANCIAL GROUP INC

5.7M

$939.3M

Ownership

1.23%

-2.9%

SUMITOMO MITSUI TRUST GROUP, INC.

1.2M

$190.2M

Ownership

0.25%

-4.7%

LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA

1.1M

$185.1M

Ownership

0.24%

-7.0%

ENVESTNET ASSET MANAGEMENT INC

1.1M

$180.5M

Ownership

0.24%

+6.7%

DAVENPORT & CO LLC

1.0M

$171.7M

Ownership

0.23%

+2.2%

DUFF & PHELPS INVESTMENT MANAGEMENT CO

1.0M

$170.0M

Ownership

0.22%

+13.6%

ABRDN PLC

888.2K

$145.3M

Ownership

0.19%

+4.2%

SARASIN & PARTNERS LLP

849.7K

$139.0M

Ownership

0.18%

-1.6%

ETF and Mutual Fund Holdings

ETF and mutual fund activity breakdown showing buying vs selling funds, top fund holders, and detailed holdings.

Fund Activity

Q2 2026: 333 ETFs and mutual funds reporting

82 buying69 sellingNet: +13

182

Buying (82)

Unchanged (182)

Selling (69)

Neutral

Mixed fund activity in Q2 2026

333 ETFs and mutual funds reporting

82 buying vs 69 selling (balanced)

Top Fund Holders, AMT

Largest 2 ETF and mutual fund positions by shares held as of latest filing

PARNASSUS INCOME FUNDS

1.7M

Weight

193.76%

No change

ADAMS DIVERSIFIED EQUITY FUND, INC.

91.2K

Weight

21.87%

No change

American Tower Corporation· AMT

Holdings Analysis

Insider Trading Activity

1.3Transaction History140Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings134Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights

Search stocks

Holdings Analysis

Insider Trading Activity

1.3Transaction History140Real market purchases and sales onlyShow All Types

Institutional Ownership Analysis

2.4Detailed Holdings134Most recent institutional positions with changes and valuations

ETF and Mutual Fund Holdings

3.3Fund Holdings Details25Most recent ETF and mutual fund holdings with share counts and weights