As of March 23, 2026, the three largest insider holders of ACM are Troy Rudd (Chief Executive Officer, 259.76K shares), Lara Poloni (President, 149.22K shares), Troy Rudd (Chief Executive Officer, 123.84K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Troy Rudd | Chief Executive Officer | 0 | 259,756 | 23 Dec, 2025 |
| Lara Poloni | President | 149,222 | 0 | 17 Dec, 2025 |
| Troy Rudd | Chief Executive Officer | 123,837 | 0 | 17 Dec, 2025 |
| Gaurav Kapoor | Chief Financial Officer (Pao) | 86,633 | 0 | 17 Dec, 2025 |
| David Y. Gan | Chief Legal Officer | 41,549 | 0 | 17 Dec, 2025 |
| Clarence T Schmitz | 40,219 | 0 | 28 Feb, 2022 | |
| Janet Carol Wolfenbarger | 38,822 | 0 | 05 Mar, 2026 | |
| Douglas Stotlar | 38,804 | 0 | 05 Mar, 2026 | |
| Brad W Buss | 28,513 | 0 | 05 Mar, 2026 | |
| Daniel R. Tishman | 23,677 | 0 | 05 Mar, 2026 | |
| Todd Battley | Chief Strategy Officer | 16,295 | 0 | 09 Jan, 2023 |
| Shirley A Adams | Chief Human Resources Officer | 14,750 | 0 | 19 Dec, 2022 |
| 'T Noordende Alexander M Van | 12,423 | 0 | 05 Mar, 2026 | |
| Robert G Card | 11,242 | 0 | 03 Mar, 2023 | |
| Lydia H Kennard | 10,456 | 0 | 21 Mar, 2024 | |
| Jacqueline C. Hinman | 8,927 | 0 | 28 Feb, 2022 | |
| Kristy Pipes | 8,623 | 0 | 05 Mar, 2026 | |
| Diane C Creel | 4,970 | 0 | 03 Mar, 2023 | |
| Derek J Kerr | 3,677 | 0 | 05 Mar, 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 |
|---|---|---|---|---|---|---|---|---|
| 03 Mar, 2026 | Brad W Buss | Common Stock | A | 2,002 | $0.00 | 28,513 | D | A |
| 03 Mar, 2026 | Kristy Pipes | Common Stock | A | 2,002 | $0.00 | 8,623 | D | A |
| 03 Mar, 2026 | 'T Noordende Alexander M Van | Common Stock | A | 2,002 | $0.00 | 12,423 | D | A |
| 03 Mar, 2026 | Daniel R. Tishman | Common Stock | A | 2,002 | $0.00 | 23,677 | D | A |
| 03 Mar, 2026 | Douglas Stotlar | Common Stock | A | 2,236 | $0.00 | 38,804 | D | A |
| 03 Mar, 2026 | Derek J Kerr | Common Stock | A | 2,002 | $0.00 | 3,677 | D | A |
| 03 Mar, 2026 | Janet Carol Wolfenbarger | Common Stock | A | 2,002 | $0.00 | 38,822 | D | A |
| 23 Dec, 2025 | Troy Rudd | Common Stock | D | 600 | $0.00 | 259,756 | I | G |
| 15 Dec, 2025 | Troy Rudd | Common Stock | A | 36,812 | $0.00 | 36,812 | D | M |
| 15 Dec, 2025 | David Y. Gan | Common Stock | A | 5,976 | $0.00 | 46,991 | D | M |
| 15 Dec, 2025 | Gaurav Kapoor | Common Stock | A | 9,562 | $0.00 | 65,974 | D | M |
| 15 Dec, 2025 | Lara Poloni | Common Stock | A | 10,040 | $0.00 | 140,231 | D | M |
| 15 Dec, 2025 | Troy Rudd | Common Stock | A | 49,000 | $0.00 | 85,812 | D | A |
| 15 Dec, 2025 | Lara Poloni | Common Stock | A | 16,334 | $0.00 | 156,565 | D | A |
| 15 Dec, 2025 | Gaurav Kapoor | Common Stock | A | 15,109 | $0.00 | 81,083 | D | A |
| 15 Dec, 2025 | David Y. Gan | Common Stock | A | 6,534 | $0.00 | 53,525 | D | A |
| 15 Dec, 2025 | David Y. Gan | Common Stock | A | 14,056 | $0.00 | 67,581 | D | A |
| 15 Dec, 2025 | Troy Rudd | Common Stock | A | 86,581 | $0.00 | 172,393 | D | A |
| 15 Dec, 2025 | Lara Poloni | Common Stock | A | 23,615 | $0.00 | 180,180 | D | A |
| 15 Dec, 2025 | Gaurav Kapoor | Common Stock | A | 22,490 | $0.00 | 103,573 | D | A |