As of June 09, 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 |
|---|---|---|---|---|
| Robert G Card | - | 11,242 | 0 | 03 Mar, 2023 |
| Douglas Stotlar | - | 38,804 | 0 | 05 Mar, 2026 |
| Brad W Buss | - | 28,513 | 0 | 05 Mar, 2026 |
| Clarence T Schmitz | - | 40,219 | 0 | 28 Feb, 2022 |
| 'T Noordende Alexander M Van | - | 12,423 | 0 | 05 Mar, 2026 |
| Daniel R. Tishman | Vice Chairman | 23,677 | 0 | 05 Mar, 2026 |
| Janet Carol Wolfenbarger | - | 38,822 | 0 | 05 Mar, 2026 |
| Troy Rudd | Chief Executive Officer | 0 | 259,756 | 23 Dec, 2025 |
| Gaurav Kapoor | Chief Financial Officer (Pao) | 86,633 | 0 | 17 Dec, 2025 |
| Lara Poloni | President | 149,222 | 0 | 17 Dec, 2025 |
| David Y. Gan | Chief Legal Officer | 41,549 | 0 | 17 Dec, 2025 |
| Shirley A Adams | Chief Human Resources Officer | 14,750 | 0 | 19 Dec, 2022 |
| Todd Battley | Chief Strategy Officer | 16,295 | 0 | 09 Jan, 2023 |
* 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 | Daniel R. Tishman | Common Stock | A | 2,002 | $0.00 | 23,677 | D | A |
| 03 Mar, 2026 | Daniel R. Tishman | Common Stock | A | 2,002 | $0.00 | 23,677 | D | A |
| 03 Mar, 2026 | Janet Carol Wolfenbarger | Common Stock | A | 2,002 | $0.00 | 38,822 | 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 | 'T Noordende Alexander M Van | Common Stock | A | 2,002 | $0.00 | 12,423 | D | A |
| 03 Mar, 2026 | Janet Carol Wolfenbarger | Common Stock | A | 2,002 | $0.00 | 38,822 | D | A |
| 03 Mar, 2026 | Brad W Buss | Common Stock | A | 2,002 | $0.00 | 28,513 | D | A |
| 03 Mar, 2026 | 'T Noordende Alexander M Van | Common Stock | A | 2,002 | $0.00 | 12,423 | D | A |
| 03 Mar, 2026 | Janet Carol Wolfenbarger | Common Stock | A | 2,002 | $0.00 | 38,822 | D | A |
| 03 Mar, 2026 | 'T Noordende Alexander M Van | Common Stock | A | 2,002 | $0.00 | 12,423 | D | A |
| 23 Dec, 2025 | Troy Rudd | Common Stock | D | 600 | $0.00 | 259,756 | I | G |
| 23 Dec, 2025 | Troy Rudd | Common Stock | D | 600 | $0.00 | 259,756 | I | G |
| 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 | Lara Poloni | Common Stock | A | 10,040 | $0.00 | 140,231 | 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 | 36,812 | $0.00 | 36,812 | D | M |
| 15 Dec, 2025 | Gaurav Kapoor | Common Stock | A | 9,562 | $0.00 | 65,974 | D | M |
| 15 Dec, 2025 | David Y. Gan | Common Stock | A | 5,976 | $0.00 | 46,991 | D | M |