IESC's three largest insider shareholders as of March 23, 2026 are Jeffrey L Et Al Gendell (Executive Chairman, 10.59Mn shares), Matthew J Simmes (President And Ceo, 93.58K shares), Holdings, Inc. Ies (Director, 87.18K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Jeffrey L Et Al Gendell | Executive Chairman | 0 | 10,587,161 | 17 Feb, 2026 |
| Matthew J Simmes | President And Ceo | 93,575 | 0 | 20 Feb, 2026 |
| Holdings, Inc. Ies | 87,180 | 0 | 14 Aug, 2025 | |
| Todd M Cleveland | 78,089 | 0 | 04 Mar, 2026 | |
| David B. Gendell | 70,734 | 0 | 05 Jan, 2026 | |
| Tracy Mclauchlin | Svp, Cfo Treasurer | 65,525 | 0 | 03 Dec, 2025 |
| Joseph L Iii Dowling | 58,408 | 0 | 04 Oct, 2021 | |
| Joe D Koshkin | 44,796 | 0 | 05 Jan, 2026 | |
| Mary K Newman | Svp, Cao And General Counsel | 21,843 | 0 | 12 Dec, 2025 |
| John Louis Fouts | 8,312 | 0 | 05 Jan, 2026 | |
| David B. Gendell | 0 | 6,000 | 19 Dec, 2022 | |
| Jennifer A Baldock | 5,523 | 0 | 05 Jan, 2026 | |
| Elizabeth Leykum | 4,896 | 0 | 02 Jul, 2024 | |
| Alison M Petersen | Vp Chief Accounting Officer | 3,406 | 0 | 09 Jun, 2023 |
| Matthew Michael Allen | Chief Technical Officer | 1,098 | 0 | 18 Dec, 2025 |
| Jennifer A Baldock | 0 | 375 | 09 May, 2022 | |
| Kelly Janzen | 176 | 0 | 05 Jan, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Mar, 2026 | Todd M Cleveland | Common Stock | D | 200 | $513.54 | 80,617 | D | S |
| 03 Mar, 2026 | Todd M Cleveland | Common Stock | D | 575 | $500.52 | 80,042 | D | S |
| 03 Mar, 2026 | Todd M Cleveland | Common Stock | D | 100 | $501.50 | 79,714 | D | S |
| 03 Mar, 2026 | Todd M Cleveland | Common Stock | D | 200 | $502.70 | 79,514 | D | S |
| 04 Mar, 2026 | Todd M Cleveland | Common Stock | D | 825 | $500.28 | 78,689 | D | S |
| 04 Mar, 2026 | Todd M Cleveland | Common Stock | D | 400 | $501.36 | 78,289 | D | S |
| 04 Mar, 2026 | Todd M Cleveland | Common Stock | D | 200 | $502.10 | 78,089 | D | S |
| 24 Feb, 2026 | Todd M Cleveland | Common Stock | D | 181 | $520.25 | 85,636 | D | S |
| 25 Feb, 2026 | Todd M Cleveland | Common Stock | D | 2,144 | $510.32 | 83,492 | D | S |
| 25 Feb, 2026 | Todd M Cleveland | Common Stock | D | 600 | $511.39 | 82,892 | D | S |
| 25 Feb, 2026 | Todd M Cleveland | Common Stock | D | 375 | $521.00 | 82,517 | D | S |
| 26 Feb, 2026 | Todd M Cleveland | Common Stock | D | 714 | $510.26 | 81,803 | D | S |
| 26 Feb, 2026 | Todd M Cleveland | Common Stock | D | 586 | $511.15 | 81,217 | D | S |
| 26 Feb, 2026 | Todd M Cleveland | Common Stock | D | 100 | $512.00 | 81,117 | D | S |
| 26 Feb, 2026 | Todd M Cleveland | Common Stock | D | 300 | $513.76 | 80,817 | D | S |
| 18 Feb, 2026 | Matthew J Simmes | Common Stock | D | 20 | $493.51 | 98,555 | D | S |
| 18 Feb, 2026 | Matthew J Simmes | Common Stock | D | 208 | $496.70 | 98,347 | D | S |
| 18 Feb, 2026 | Matthew J Simmes | Common Stock | D | 292 | $497.88 | 98,055 | D | S |
| 18 Feb, 2026 | Matthew J Simmes | Common Stock | D | 56 | $498.84 | 97,999 | D | S |
| 18 Feb, 2026 | Matthew J Simmes | Common Stock | D | 64 | $499.78 | 97,935 | D | S |