ACM's three largest insider shareholders as of April 22, 2026 are Troy Rudd (Chief Executive Officer, 259.76K shares), Troy Rudd (Chief Executive Officer, 259.76K shares), Lara Poloni (President, 149.22K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Troy Rudd | Chief Executive Officer | 0 | 259,756 | 23 Dec, 2025 |
| Troy Rudd | Chief Executive Officer | 0 | 259,756 | 23 Dec, 2025 |
| Lara Poloni | President | 149,222 | 0 | 17 Dec, 2025 |
| Lara Poloni | President | 149,222 | 0 | 17 Dec, 2025 |
| Troy Rudd | Chief Executive Officer | 123,837 | 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 |
| Gaurav Kapoor | Chief Financial Officer (Pao) | 86,633 | 0 | 17 Dec, 2025 |
| David Y. Gan | Chief Legal Officer | 41,549 | 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 |
| Clarence T Schmitz | - | 40,219 | 0 | 28 Feb, 2022 |
| Janet Carol Wolfenbarger | - | 38,822 | 0 | 05 Mar, 2026 |
| Janet Carol Wolfenbarger | - | 38,822 | 0 | 05 Mar, 2026 |
| Douglas Stotlar | - | 38,804 | 0 | 05 Mar, 2026 |
| Douglas Stotlar | - | 38,804 | 0 | 05 Mar, 2026 |
| Daniel R. Tishman | Vice Chairman | 23,677 | 0 | 05 Mar, 2026 |
| Daniel R. Tishman | Vice Chairman | 23,677 | 0 | 05 Mar, 2026 |
| Todd Battley | Chief Strategy Officer | 16,295 | 0 | 09 Jan, 2023 |
| Todd Battley | Chief Strategy Officer | 16,295 | 0 | 09 Jan, 2023 |
| Shirley A Adams | Chief Human Resources Officer | 14,750 | 0 | 19 Dec, 2022 |
| Shirley A Adams | Chief Human Resources Officer | 14,750 | 0 | 19 Dec, 2022 |
| 'T Noordende Alexander M Van | - | 12,423 | 0 | 05 Mar, 2026 |
| 'T Noordende Alexander M Van | - | 12,423 | 0 | 05 Mar, 2026 |
| Robert G Card | - | 11,242 | 0 | 03 Mar, 2023 |
| 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 |
* 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 | 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 |
| 03 Mar, 2026 | Kristy Pipes | Common Stock | A | 2,002 | $0.00 | 8,623 | D | A |
| 03 Mar, 2026 | Daniel R. Tishman | Common Stock | A | 2,002 | $0.00 | 23,677 | D | A |
| 03 Mar, 2026 | 'T Noordende Alexander M Van | Common Stock | A | 2,002 | $0.00 | 12,423 | D | A |
| 03 Mar, 2026 | Douglas Stotlar | Common Stock | A | 2,236 | $0.00 | 38,804 | D | A |
| 03 Mar, 2026 | Janet Carol Wolfenbarger | Common Stock | A | 2,002 | $0.00 | 38,822 | D | A |
| 03 Mar, 2026 | Douglas Stotlar | Common Stock | A | 2,236 | $0.00 | 38,804 | 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 |
| 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 | 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 | 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 |
| 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 | 6,534 | $0.00 | 53,525 | D | A |