HEI-A
HEI-A—+0.00 (—)Prev Close—·MCap—·P/E—·Vol—·Yield—
▲
Buys (12M)
9
$2.25M
▼
Sells (12M)
3
$28.53M
◆
Net Activity
Net Seller
$26.28M
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Active Insiders
11
last 12 mo
Over the past 12 months, insider activity at HEI-A (HEI-A) has been dominated by selling, with 9 insider purchases totaling $2.25M and 3 insider sales totaling $28.53M. The most recent insider transaction was by CHERUVATATH NANDAKUMAR (Director), who purchased $999.9K worth of shares on Mar 5, 2026.
HEI-A Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 5, 2026 | CHERUVATATH NANDAKUMAR | Director | Buy | 4,082 | $244.95 | $999.9K | 4,146New Position |
| Oct 23, 2025 | Hildebrandt Mark H | Director | Buy | 400 | $248.76 | $99.5K | 1,181+51% |
| Oct 14, 2025 | CULLIGAN THOMAS M | Director | Buy | 676 | $243.93 | $164.9K | 11,030 |
| Oct 14, 2025 | HENRIQUES ADOLFO | Director | Buy | 676 | $243.93 | $164.9K | 24,069 |
| Oct 14, 2025 | Hildebrandt Mark H | Director | Buy | 676 | $243.93 | $164.9K | 49,423 |
| Oct 14, 2025 | MENDELSON ERIC A | Co-COB and Co-CEO | Buy | 676 | $243.93 | $164.9K | 10,042 |
| Oct 14, 2025 | MENDELSON VICTOR H | Co-COB and Co-CEO | Buy | 676 | $243.93 | $164.9K | 218,571 |
| Oct 14, 2025 | Neitzel Julie | Director | Buy | 676 | $243.93 | $164.9K | 676 |
| Oct 14, 2025 | SCHRIESHEIM ALAN | Director | Buy | 672 | $243.93 | $163.9K | 672 |
| Jul 17, 2025 | MENDELSON LAURANS A | Executive Chairman | Sell | 56,300 | $319.45 | $17.98M | 1,253,127 |
| Jun 5, 2025 | SCHRIESHEIM ALAN | Director | Sell | 35,000 | $298.36 | $10.44M | 122,197 |
| Jun 5, 2025 | Schwitter Frank J | Director | Sell | 356 | $299.10 | $106.5K | 1,500 |
| Apr 25, 2025 | Neitzel Julie | Director | Sell | 700 | $246.23 | $172.4K | 418-63% |
| Apr 23, 2025 | SCHRIESHEIM ALAN | Director | Sell | 50,000 | $239.57 | $11.98M | 157,197 |
| Apr 23, 2025 | Schwitter Frank J | Director | Sell | 600 | $238.03 | $142.8K | 1,856 |
| Oct 21, 2024 | Schwitter Frank J | Director | Buy | 726 | $262.94 | $190.9K | 2,456+42% |
| Oct 21, 2024 | MENDELSON VICTOR H | Co-President | Buy | 726 | $262.94 | $190.9K | 1,234,950 |
| Oct 21, 2024 | Neitzel Julie | Director | Buy | 726 | $262.94 | $190.9K | 1,173+162% |
| Oct 21, 2024 | SCHRIESHEIM ALAN | Director | Buy | 724 | $262.94 | $190.4K | 174,878 |
| Oct 21, 2024 | Fine Carol F. | Director | Buy | 725 | $262.94 | $190.6K | 1,204+151% |
| Oct 21, 2024 | HENRIQUES ADOLFO | Director | Buy | 726 | $262.94 | $190.9K | 5,470 |
| Oct 21, 2024 | MENDELSON ERIC A | Co-President | Buy | 726 | $262.94 | $190.9K | 6,302 |
| Oct 21, 2024 | MENDELSON LAURANS A | COB and CEO | Buy | 725 | $262.94 | $190.6K | 929,984 |
| Oct 8, 2024 | SCHRIESHEIM ALAN | Director | Sell | 332 | $201.63 | $66.9K | 0Exit |
| Sep 5, 2024 | Schwitter Frank J | Director | Buy | 475 | $252.26 | $119.8K | 1,730+38% |
| Jul 26, 2024 | MENDELSON ERIC A | Co-President | Sell | 20,000 | $186.09 | $3.72M | 148,891 |
| Jul 17, 2024 | MENDELSON ERIC A | Co-President | Sell | 53,510 | $182.02 | $9.74M | 168,891 |
| Jul 9, 2024 | MENDELSON ERIC A | Co-President | Sell | 8,864 | $180.54 | $1.60M | 222,401 |
| Jun 26, 2024 | MENDELSON ERIC A | Co-President | Sell | 17,627 | $180.48 | $3.18M | 246,060 |
| Apr 1, 2024 | Schwitter Frank J | Director | Sell | 400 | $193.70 | $77.5K | 1,255 |
| Mar 25, 2024 | SCHRIESHEIM ALAN | Director | Sell | 26,000 | $192.18 | $5.00M | 155,862 |
| Jan 4, 2024 | Schwitter Frank J | Director | Sell | 550 | $178.06 | $97.9K | 1,655 |
| Dec 28, 2023 | Neitzel Julie | Director | Sell | 1,450 | $179.54 | $260.3K | 447-76% |
| Oct 19, 2023 | MENDELSON LAURANS A | COB and CEO | Sell | 25,000 | $166.18 | $4.15M | 1,694,451 |
| Sep 14, 2023 | SCHRIESHEIM ALAN | Director | Sell | 2,000 | $164.23 | $328.5K | 105,111 |
| Jun 8, 2023 | Hildebrandt Mark H | Director | Buy | 781 | $127.98 | $100.0K | 781 |
| Jun 6, 2023 | Neitzel Julie | Director | Buy | 120 | $158.20 | $19.0K | 1,897 |
| Jun 6, 2023 | MENDELSON VICTOR H | Co-President | Buy | 120 | $158.20 | $19.0K | 1,180,004 |
| Jun 6, 2023 | Fine Carol F. | Director | Buy | 450 | $158.20 | $71.2K | 479New Position |
| Jun 6, 2023 | Hildebrandt Mark H | Director | Buy | 120 | $158.20 | $19.0K | 4,744 |
| Jun 6, 2023 | MENDELSON ERIC A | Co-President | Buy | 120 | $158.20 | $19.0K | 5,576 |
| Jun 6, 2023 | MENDELSON LAURANS A | COB and CEO | Buy | 310 | $125.83 | $39.0K | 16,587 |
| Jun 6, 2023 | SCHRIESHEIM ALAN | Director | Buy | 570 | $125.83 | $71.7K | 832+218% |
| Jun 6, 2023 | Schwitter Frank J | Director | Buy | 120 | $158.20 | $19.0K | 2,205 |
| Apr 13, 2023 | Neitzel Julie | Director | Sell | 250 | $133.61 | $33.4K | 155-62% |
| Apr 6, 2023 | SCHRIESHEIM ALAN | Director | Sell | 20,000 | $166.79 | $3.34M | 114,261 |
| Mar 6, 2023 | Schwitter Frank J | Director | Sell | 600 | $138.65 | $83.2K | 0Exit |
| Jan 26, 2023 | SCHRIESHEIM ALAN | Director | Sell | 15,000 | $167.33 | $2.51M | 115,331 |
| Jan 11, 2023 | IRWIN THOMAS S | Sr Exec VP | Sell | 3,608 | $121.56 | $438.6K | 0Exit |
| Jan 11, 2023 | MENDELSON ERIC A | Co-President | Buy | 1,383 | $157.07 | $217.2K | 5,456+34% |
Showing 1–50 of 79
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HEI-A Insider Buying Activity
The following table shows recent insider purchases of HEI-A (HEI-A) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 5, 2026 | CHERUVATATH NANDAKUMAR | Director | Buy | 4,082 | $244.95 | $999.9K | 4,146New Position |
| Oct 23, 2025 | Hildebrandt Mark H | Director | Buy | 400 | $248.76 | $99.5K | 1,181+51% |
| Oct 14, 2025 | CULLIGAN THOMAS M | Director | Buy | 676 | $243.93 | $164.9K | 11,030 |
| Oct 14, 2025 | HENRIQUES ADOLFO | Director | Buy | 676 | $243.93 | $164.9K | 24,069 |
| Oct 14, 2025 | Hildebrandt Mark H | Director | Buy | 676 | $243.93 | $164.9K | 49,423 |
| Oct 14, 2025 | MENDELSON ERIC A | Co-COB and Co-CEO | Buy | 676 | $243.93 | $164.9K | 10,042 |
| Oct 14, 2025 | MENDELSON VICTOR H | Co-COB and Co-CEO | Buy | 676 | $243.93 | $164.9K | 218,571 |
| Oct 14, 2025 | Neitzel Julie | Director | Buy | 676 | $243.93 | $164.9K | 676 |
| Oct 14, 2025 | SCHRIESHEIM ALAN | Director | Buy | 672 | $243.93 | $163.9K | 672 |
| Oct 21, 2024 | Schwitter Frank J | Director | Buy | 726 | $262.94 | $190.9K | 2,456+42% |
| Oct 21, 2024 | MENDELSON VICTOR H | Co-President | Buy | 726 | $262.94 | $190.9K | 1,234,950 |
| Oct 21, 2024 | Neitzel Julie | Director | Buy | 726 | $262.94 | $190.9K | 1,173+162% |
| Oct 21, 2024 | SCHRIESHEIM ALAN | Director | Buy | 724 | $262.94 | $190.4K | 174,878 |
| Oct 21, 2024 | Fine Carol F. | Director | Buy | 725 | $262.94 | $190.6K | 1,204+151% |
| Oct 21, 2024 | HENRIQUES ADOLFO | Director | Buy | 726 | $262.94 | $190.9K | 5,470 |
| Oct 21, 2024 | MENDELSON ERIC A | Co-President | Buy | 726 | $262.94 | $190.9K | 6,302 |
| Oct 21, 2024 | MENDELSON LAURANS A | COB and CEO | Buy | 725 | $262.94 | $190.6K | 929,984 |
| Sep 5, 2024 | Schwitter Frank J | Director | Buy | 475 | $252.26 | $119.8K | 1,730+38% |
| Jun 8, 2023 | Hildebrandt Mark H | Director | Buy | 781 | $127.98 | $100.0K | 781 |
| Jun 6, 2023 | Neitzel Julie | Director | Buy | 120 | $158.20 | $19.0K | 1,897 |
| Jun 6, 2023 | MENDELSON VICTOR H | Co-President | Buy | 120 | $158.20 | $19.0K | 1,180,004 |
| Jun 6, 2023 | Fine Carol F. | Director | Buy | 450 | $158.20 | $71.2K | 479New Position |
| Jun 6, 2023 | Hildebrandt Mark H | Director | Buy | 120 | $158.20 | $19.0K | 4,744 |
| Jun 6, 2023 | MENDELSON ERIC A | Co-President | Buy | 120 | $158.20 | $19.0K | 5,576 |
| Jun 6, 2023 | MENDELSON LAURANS A | COB and CEO | Buy | 310 | $125.83 | $39.0K | 16,587 |
| Jun 6, 2023 | SCHRIESHEIM ALAN | Director | Buy | 570 | $125.83 | $71.7K | 832+218% |
| Jun 6, 2023 | Schwitter Frank J | Director | Buy | 120 | $158.20 | $19.0K | 2,205 |
| Jan 11, 2023 | MENDELSON ERIC A | Co-President | Buy | 1,383 | $157.07 | $217.2K | 5,456+34% |
HEI-A Insider Selling Activity
The following table shows recent insider sales of HEI-A (HEI-A) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jul 17, 2025 | MENDELSON LAURANS A | Executive Chairman | Sell | 56,300 | $319.45 | $17.98M | 1,253,127 |
| Jun 5, 2025 | SCHRIESHEIM ALAN | Director | Sell | 35,000 | $298.36 | $10.44M | 122,197 |
| Jun 5, 2025 | Schwitter Frank J | Director | Sell | 356 | $299.10 | $106.5K | 1,500 |
| Apr 25, 2025 | Neitzel Julie | Director | Sell | 700 | $246.23 | $172.4K | 418-63% |
| Apr 23, 2025 | SCHRIESHEIM ALAN | Director | Sell | 50,000 | $239.57 | $11.98M | 157,197 |
| Apr 23, 2025 | Schwitter Frank J | Director | Sell | 600 | $238.03 | $142.8K | 1,856 |
| Oct 8, 2024 | SCHRIESHEIM ALAN | Director | Sell | 332 | $201.63 | $66.9K | 0Exit |
| Jul 26, 2024 | MENDELSON ERIC A | Co-President | Sell | 20,000 | $186.09 | $3.72M | 148,891 |
| Jul 17, 2024 | MENDELSON ERIC A | Co-President | Sell | 53,510 | $182.02 | $9.74M | 168,891 |
| Jul 9, 2024 | MENDELSON ERIC A | Co-President | Sell | 8,864 | $180.54 | $1.60M | 222,401 |
| Jun 26, 2024 | MENDELSON ERIC A | Co-President | Sell | 17,627 | $180.48 | $3.18M | 246,060 |
| Apr 1, 2024 | Schwitter Frank J | Director | Sell | 400 | $193.70 | $77.5K | 1,255 |
| Mar 25, 2024 | SCHRIESHEIM ALAN | Director | Sell | 26,000 | $192.18 | $5.00M | 155,862 |
| Jan 4, 2024 | Schwitter Frank J | Director | Sell | 550 | $178.06 | $97.9K | 1,655 |
| Dec 28, 2023 | Neitzel Julie | Director | Sell | 1,450 | $179.54 | $260.3K | 447-76% |
| Oct 19, 2023 | MENDELSON LAURANS A | COB and CEO | Sell | 25,000 | $166.18 | $4.15M | 1,694,451 |
| Sep 14, 2023 | SCHRIESHEIM ALAN | Director | Sell | 2,000 | $164.23 | $328.5K | 105,111 |
| Apr 13, 2023 | Neitzel Julie | Director | Sell | 250 | $133.61 | $33.4K | 155-62% |
| Apr 6, 2023 | SCHRIESHEIM ALAN | Director | Sell | 20,000 | $166.79 | $3.34M | 114,261 |
| Mar 6, 2023 | Schwitter Frank J | Director | Sell | 600 | $138.65 | $83.2K | 0Exit |
| Jan 26, 2023 | SCHRIESHEIM ALAN | Director | Sell | 15,000 | $167.33 | $2.51M | 115,331 |
| Jan 11, 2023 | IRWIN THOMAS S | Sr Exec VP | Sell | 3,608 | $121.56 | $438.6K | 0Exit |