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Investment Visual

AMT

American Tower Corporation

$191.64+1.85 (+0.97%)Close Nov 13, 2026

Backtest AMT

Insider trading

12 months to Nov 3, 2026
Net sold
$22.6M
Sales less buys
Bought
$1.02M
2 insiders
Sold
$23.6M
6 insiders · $21.8M in plan sales
Latest buy
Oct 20, 2026
Teresa Hillary Clarke

Buys and sales on the price

Since 2003

By period

Open-market trades
Trades3 months12 monthsSince 2003
Buys2636
Sales314496
Plan sales211335
Shares bought2,8722.87K5,6645.66K134,679135K
Shares sold2,1702.17K124,757125K21,745,56921.7M
Net shares+702+702−119,093−119K−21,610,890−21.6M
Net value+$106K−$22.6M−$1.05B

Insiders

InsiderShares held
Pamela D. A. Reeve
Director
—
21,089 Common Stock
Robert Joseph Meyer
SVP & Advisor to the CFO
—
21,428 Common Stock
Craig Macnab
Director
—
15,315 Common Stock
as of Mar 12, 2026
Grace Lieblein
Director
—
9,141 Common Stock
as of Mar 12, 2026
Steven O. Vondran
President and CEO, Director
—
108,902 Common Stock
as of Mar 12, 2026

Trades

532 trades since 2003
TypeInsiderRoleSharesPriceHeld after
Oct 30, 2026Sale
Common Stock
Juan FontSVP, Pres. & CEO, CoreSite
SVP, Pres. & CEO, CoreSite
SVP, Pres. & CEO, CoreSite
592
at $189.63
$189.63$112K
−2.1%
27.8K after
27,810
Oct 29, 2026Plan sale
Common Stock
Ruth T. DowlingEVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
952
at $185.81
$185.81$177K
−3.5%
26.1K after
26,133
Oct 28, 2026Plan sale
Common Stock
Ruth T. DowlingEVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
626
at $182.00
$182.00$114K
−2.3%
27.1K after
27,085
Oct 20, 2026Buy
Common Stock
Teresa Hillary ClarkeDirector
Director
Director
43
at $183.20
$183.20$7.86K
+0.8%
5.65K after
5,645
Aug 21, 2026Buy
Common Stock
Rajesh KalathurDirector
Director
Director
2,829
at $177.00
$177.00$501K
+55.4%
7.94K after
7,936
Jul 29, 2026Sale
Common Stock
Robert Joseph MeyerSVP & Advisor to the CFO
SVP & Advisor to the CFO
SVP & Advisor to the CFO
5,000
at $178.89
$178.89$894K
−18.9%
21.4K after
21,428
Jul 29, 2026Plan sale
Common Stock
Ruth T. DowlingEVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
1,106
at $174.96
$174.96$194K
−3.8%
27.7K after
27,711
Jul 28, 2026Plan sale
Common Stock
Ruth T. DowlingEVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
685
at $169.54
$169.54$116K
−2.3%
28.8K after
28,817
Jul 13, 2026Buy
Common Stock
Teresa Hillary ClarkeDirector
Director
Director
46
at $167.52
$167.52$7.78K
+0.8%
5.60K after
5,602
Apr 29, 2026Plan sale
Common Stock
Ruth T. DowlingEVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
EVP, Chief Admin Ofr, GC & Sec
416
at $177.54
$177.54$73.9K
−1.4%
29.5K after
29,461
  • Juan Font$112K
    Oct 30, 2026 · Sale592 Common Stock at $189.63
    SVP, Pres. & CEO, CoreSite−2.1% of holdings, 27.8K after
  • Ruth T. Dowling$177K
    Oct 29, 2026 · Plan sale952 Common Stock at $185.81
    EVP, Chief Admin Ofr, GC & Sec−3.5% of holdings, 26.1K after
  • Ruth T. Dowling$114K
    Oct 28, 2026 · Plan sale626 Common Stock at $182.00
    EVP, Chief Admin Ofr, GC & Sec−2.3% of holdings, 27.1K after
  • Teresa Hillary Clarke$7.86K
    Oct 20, 2026 · Buy43 Common Stock at $183.20
    Director+0.8% of holdings, 5.65K after
  • Rajesh Kalathur$501K
    Aug 21, 2026 · Buy2,829 Common Stock at $177.00
    Director+55.4% of holdings, 7.94K after
  • Robert Joseph Meyer$894K
    Jul 29, 2026 · Sale5,000 Common Stock at $178.89
    SVP & Advisor to the CFO−18.9% of holdings, 21.4K after
  • Ruth T. Dowling$194K
    Jul 29, 2026 · Plan sale1,106 Common Stock at $174.96
    EVP, Chief Admin Ofr, GC & Sec−3.8% of holdings, 27.7K after
  • Ruth T. Dowling$116K
    Jul 28, 2026 · Plan sale685 Common Stock at $169.54
    EVP, Chief Admin Ofr, GC & Sec−2.3% of holdings, 28.8K after
  • Teresa Hillary Clarke$7.78K
    Jul 13, 2026 · Buy46 Common Stock at $167.52
    Director+0.8% of holdings, 5.60K after
  • Ruth T. Dowling$73.9K
    Apr 29, 2026 · Plan sale416 Common Stock at $177.54
    EVP, Chief Admin Ofr, GC & Sec−1.4% of holdings, 29.5K after