Insider trading

Period: 120 months Stock: AMT Plan: Scheduled (10b5-1) × + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

28 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

28 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

28 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

28 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
28 decisions over 120 months Remove this filter
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
28 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

28 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
29 Jul 2026
Dowling Ruth T EVP, Chief Admin Ofr, GC & Sec
Sold on a plan
$193.51K 1,106 at 174.96
3.8%
Planned (10b5-1)
28 Jul 2026
Dowling Ruth T EVP, Chief Admin Ofr, GC & Sec
Sold on a plan
$116.13K 685 at 169.54
2.3%
Planned (10b5-1)
29 Apr 2026
Dowling Ruth T EVP, Chief Admin Ofr, GC & Sec
Sold on a plan
$73.86K 416 at 177.54
1.4%
Planned (10b5-1)
28 Apr 2026
Dowling Ruth T EVP, Chief Admin Ofr, GC & Sec
Sold on a plan
$99.23K 556 at 178.48
1.8%
Planned (10b5-1)
4 Mar 2026
Vondran Steven O President and CEO
Sold on a plan 3×
$6.31M 33,482 at 188.46
24.1%
Planned (10b5-1)
4 Mar 2026
Dowling Ruth T EVP, Chief Admin Ofr, GC & Sec
Sold on a plan
$128.56K 682 at 188.51
2.1%
Planned (10b5-1)
2 Mar 2026
Noel Eugene M EVP & Chief Operating Officer
Sold on a plan 4×
$7.87M 41,209 at 191.05
58.2%
Sold half or more
27 Feb 2026
Dowling Ruth T EVP, Chief Admin Ofr, GC & Sec
Sold on a plan
$122.12K 656 at 186.16
2.0%
Planned (10b5-1)
17 Feb 2026
Smith Rodney M EVP, CFO & Treasurer
Sold on a plan 4×
$6.60M 34,341 at 192.09
31.6%
Planned (10b5-1)
13 Feb 2025
Smith Rodney M EVP, CFO & Treasurer
Sold on a plan 2×
$3.14M 16,568 at 189.70
20.9%
Planned (10b5-1)
16 Jan 2025
Smith Rodney M EVP, CFO & Treasurer
Sold on a plan 2×
$3.00M 16,567 at 181.10
20.9%
Planned (10b5-1)
10 Sep 2024
Noel Eugene M EVP & President, U.S. Tower
Sold on a plan
$7.95M 33,135 at 240.00
55.3%
Sold half or more
3 Sep 2024
Puech Olivier EVP & President, LatAm & EMEA
Sold on a plan
$4.37M 18,989 at 230.00
45.5%
Planned (10b5-1)
26 Aug 2024
Puech Olivier EVP & President, LatAm & EMEA
Sold on a plan 3×
$2.26M 9,988 at 226.35
19.3%
Planned (10b5-1)
2 Aug 2024
Vondran Steven O President and CEO
Sold on a plan
$4.95M 21,537 at 230.00
25.8%
Planned (10b5-1)
2 Aug 2024
Puech Olivier EVP & President, LatAm & EMEA
Sold on a plan 6×
$2.33M 10,005 at 233.27
16.2%
Planned (10b5-1)
6 Mar 2024
Smith Rodney M EVP, CFO & Treasurer
Sold on a plan 2×
$2.37M 11,510 at 205.71
15.5%
Planned (10b5-1)
4 Mar 2024
Vondran Steven O President and CEO
Sold on a plan 3×
$654.38K 3,265 at 200.42
5.3%
Planned (10b5-1)
1 Mar 2024
Smith Rodney M EVP, CFO & Treasurer
Sold on a plan 3×
$2.28M 11,509 at 197.67
15.5%
Planned (10b5-1)
1 Mar 2024
THOMPSON SAMME L Director
Sold on a plan
$502.62K 2,527 at 198.90
9.8%
Planned (10b5-1)
26 Feb 2024
THOMPSON SAMME L Director
Sold on a plan 2×
$480.70K 2,527 at 190.22
9.8%
Planned (10b5-1)
16 Oct 2023
HORMATS ROBERT D Director
Sold on a plan
$24.96K 150 at 166.39
2.1%
Planned (10b5-1)
2 Oct 2023
HORMATS ROBERT D Director
Sold on a plan
$24.54K 150 at 163.63
2.1%
Planned (10b5-1)
17 Aug 2023
Smith Rodney M EVP, CFO & Treasurer
Sold on a plan 2×
$1.78M 10,000 at 178.14
16.5%
Planned (10b5-1)
15 Aug 2023
HORMATS ROBERT D Director
Sold on a plan
$23.17K 125 at 185.34
1.7%
Planned (10b5-1)
10 Aug 2023
Smith Rodney M EVP, CFO & Treasurer
Sold on a plan
$510.41K 2,727 at 187.17
5.1%
Planned (10b5-1)
3 Aug 2023
Smith Rodney M EVP, CFO & Treasurer
Sold on a plan 3×
$665.72K 3,524 at 188.91
6.2%
Planned (10b5-1)
1 Aug 2023
HORMATS ROBERT D Director
Sold on a plan
$23.84K 125 at 190.75
1.7%
Planned (10b5-1)
Showing 1–28 of 28.