Insider trading

Period: 120 months Stock: HEI Type of trade: Bought × + 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.

96 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.

96 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.

96 decisions over 120 months Remove this filter
The trade

Minimum amount

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

96 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.
96 decisions over 120 months
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
96 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.

96 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
4 Mar 2026
Bought
$999.90K 4,082 at 244.95
×64
First buy on file
21 Oct 2025
Hildebrandt Mark H Director · indirect
Bought
$99.50K 400 at 248.76
51.2%
+51% of stake
10 Oct 2025
MENDELSON ERIC A Co-COB and Co-CEO · indirect
Bought
$164.90K 676 at 243.93
7.2%
10 Oct 2025
HENRIQUES ADOLFO Director · indirect
Bought
$164.90K 676 at 243.93
2.9%
10 Oct 2025
Neitzel Julie Director
Bought
$164.90K 676 at 243.93
opened
10 Oct 2025
CULLIGAN THOMAS M Director · indirect
Bought
$164.90K 676 at 243.93
6.5%
10 Oct 2025
MENDELSON VICTOR H Co-COB and Co-CEO
Bought
$164.90K 676 at 243.93
0.3%
10 Oct 2025
Hildebrandt Mark H Director · indirect
Bought
$164.90K 676 at 243.93
1.4%
10 Oct 2025
SCHRIESHEIM ALAN Director
Bought
$163.92K 672 at 243.93
opened
10 Oct 2025
Fine Carol F. Director · indirect
Bought
$163.92K 672 at 243.93
opened
18 Oct 2024
Neitzel Julie Director
Bought
$190.89K 726 at 262.94
162%
+162% of stake
18 Oct 2024
MENDELSON VICTOR H Co-President
Bought
$190.89K 726 at 262.94
0.1%
18 Oct 2024
Hildebrandt Mark H Director · indirect
Bought
$190.89K 726 at 262.94
15.3%
18 Oct 2024
HENRIQUES ADOLFO Director · indirect
Bought
$190.89K 726 at 262.94
15.3%
18 Oct 2024
Bought
$190.89K 726 at 262.94
42.0%
+42% of stake
18 Oct 2024
MENDELSON ERIC A Co-President · indirect
Bought
$190.89K 726 at 262.94
13.0%
18 Oct 2024
CULLIGAN THOMAS M Director · indirect
Bought
$190.89K 726 at 262.94
15.3%
18 Oct 2024
MENDELSON LAURANS A COB and CEO
Bought
$190.63K 725 at 262.94
0.1%
Largest buy in 3 yrs
18 Oct 2024
Fine Carol F. Director · indirect
Bought
$190.63K 725 at 262.94
151%
Largest buy in 3 yrs
18 Oct 2024
SCHRIESHEIM ALAN Director
Bought
$190.37K 724 at 262.94
0.4%
Largest buy in 3 yrs
3 Sep 2024
Bought
$119.83K 475 at 252.26
37.8%
+38% of stake
7 Jun 2023
Hildebrandt Mark H Director · indirect
Bought
$99.95K 781 at 127.98
opened
2 Jun 2023
SCHRIESHEIM ALAN Director
Bought
$71.72K 570 at 125.83
218%
+218% of stake
2 Jun 2023
Fine Carol F. Director · indirect
Bought
$71.19K 450 at 158.20
×16
Largest buy in 3 yrs
2 Jun 2023
MENDELSON LAURANS A COB and CEO
Bought
$39.01K 310 at 125.83
1.9%
2 Jun 2023
Bought
$18.98K 120 at 158.20
5.8%
2 Jun 2023
MENDELSON VICTOR H Co-President
Bought
$18.98K 120 at 158.20
0.0%
2 Jun 2023
CULLIGAN THOMAS M Director · indirect
Bought
$18.98K 120 at 158.20
2.6%
2 Jun 2023
Hildebrandt Mark H Director · indirect
Bought
$18.98K 120 at 158.20
2.6%
2 Jun 2023
Neitzel Julie Director
Bought on a plan
$18.98K 120 at 158.20
6.8%
Bought on a plan
2 Jun 2023
MENDELSON ERIC A Co-President · indirect
Bought
$18.98K 120 at 158.20
2.2%
2 Jun 2023
HENRIQUES ADOLFO Director · indirect
Bought
$18.98K 120 at 158.20
2.6%
10 Jan 2023
Neitzel Julie Director
Bought
$217.54K 1,385 at 157.07
353%
Largest buy in 3 yrs
10 Jan 2023
CULLIGAN THOMAS M Director · indirect
Bought
$217.54K 1,385 at 157.07
42.8%
Largest buy in 3 yrs
10 Jan 2023
HENRIQUES ADOLFO Director · indirect
Bought
$217.54K 1,385 at 157.07
42.8%
Largest buy in 3 yrs
10 Jan 2023
Hildebrandt Mark H Director · indirect
Bought
$217.54K 1,385 at 157.07
42.8%
Largest buy in 3 yrs
10 Jan 2023
Bought
$217.54K 1,385 at 157.07
198%
Largest buy in 3 yrs
10 Jan 2023
MENDELSON VICTOR H Co-President
Bought
$217.22K 1,383 at 157.07
0.1%
Largest buy in 3 yrs
10 Jan 2023
MENDELSON ERIC A Co-President · indirect
Bought
$217.22K 1,383 at 157.07
34.0%
Largest buy in 3 yrs
10 Jan 2023
SCHRIESHEIM ALAN Director
Bought
$166.23K 1,362 at 122.05
opened
Largest buy in 3 yrs
10 Jan 2023
MENDELSON LAURANS A COB and CEO
Bought
$135.86K 865 at 157.07
0.1%
10 Jan 2023
Fine Carol F. Director
Bought
$4.55K 29 at 157.07
opened
First buy on file
23 Mar 2022
MENDELSON LAURANS A COB and CEO
Bought
$149.98K 1,200 at 124.98
8.0%
Largest buy in 3 yrs
8 Sep 2021
MENDELSON ERIC A Co-President · indirect
Bought
$104.15K 834 at 124.89
25.7%
+26% of stake
8 Sep 2021
MENDELSON VICTOR H Co-President · indirect
Bought
$104.15K 834 at 124.89
25.8%
+26% of stake
8 Sep 2021
Hildebrandt Mark H Director · indirect
Bought
$103.83K 926 at 112.13
1.9%
8 Sep 2021
SCHRIESHEIM ALAN Director
Bought
$103.83K 926 at 112.13
1.5%
8 Sep 2021
CULLIGAN THOMAS M Director · indirect
Bought
$103.83K 926 at 112.13
9.8%
8 Sep 2021
Neitzel Julie Director
Bought
$103.83K 926 at 112.13
113%
+113% of stake
8 Sep 2021
Bought
$103.72K 925 at 112.13
102%
+102% of stake
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