As of June 18, 2026, Simpson Manufacturing's top three insider holders are Michael Olosky (President And Ceo, 54.90K shares), Karen Winifred Colonias (President Ceo, 33.92K shares), Brian J Magstadt (Chief Financial Officer, 31.03K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Gary M Cusumano | - | 18,714 | 0 | 02 May, 2024 |
| James S Andrasick | - | 0 | 5,645 | 07 Mar, 2024 |
| Greenway Robin Macgillivray | - | 14,097 | 0 | 27 Apr, 2023 |
| Jennifer Chatman | - | 14,638 | 0 | 13 Feb, 2024 |
| Celeste Volz Ford | - | 13,434 | 0 | 08 May, 2025 |
| Karen Winifred Colonias | President Ceo | 0 | 33,920 | 10 Nov, 2021 |
| Brian J Magstadt | Chief Financial Officer | 31,034 | 0 | 20 Feb, 2024 |
| Roger Dankel | Evp, Na Sales | 22,192 | 0 | 12 Dec, 2024 |
| Kevin Lee Swartzendruber | Senior Vp Of Finance | 7,192 | 0 | 20 Feb, 2024 |
| Philip E Donaldson | - | 6,086 | 0 | 15 Dec, 2025 |
| Angela C Drake | - | 1,013 | 0 | 08 May, 2025 |
| Chau Banks | - | 2,341 | 0 | 08 May, 2025 |
| Kenneth D. Knight | - | 4,097 | 0 | 08 May, 2025 |
| Michael Olosky | President And Ceo | 54,896 | 0 | 18 Feb, 2026 |
| Jennifer Lutz | Evp, Human Resources | 4,047 | 0 | 05 May, 2025 |
| Michael Andersen | Evp, Europe | 12,417 | 0 | 18 Feb, 2026 |
| Jeremy Gilstrap | Evp, Innovation | 10,900 | 0 | 18 Feb, 2026 |
| Phillip Burton | Evp, North America | 9,907 | 0 | 18 Feb, 2026 |
| Felica Coney | - | 2,341 | 0 | 08 May, 2025 |
| Cassandra Payton | Evp, General Counsel | 4,688 | 0 | 18 Feb, 2026 |
| Udit Mehta | Chief Technology Officer | 4,990 | 0 | 18 Feb, 2026 |
| Matt Dunn | Chief Financial Officer | 4,687 | 0 | 18 Feb, 2026 |
| Nozomi Bullock | Evp, Human Resources | 773 | 0 | 29 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 |
|---|---|---|---|---|---|---|---|---|
| 17 Feb, 2026 | Udit Mehta | Common Stock | D | 386 | $209.01 | 4,990 | D | F |
| 17 Feb, 2026 | Matt Dunn | Common Stock | D | 185 | $209.01 | 4,687 | D | F |
| 17 Feb, 2026 | Cassandra Payton | Common Stock | A | 963 | $0.00 | 5,437 | D | A |
| 17 Feb, 2026 | Jeremy Gilstrap | Common Stock | A | 2,449 | $0.00 | 11,318 | D | A |
| 17 Feb, 2026 | Michael Olosky | Common Stock | A | 17,140 | $0.00 | 56,478 | D | A |
| 17 Feb, 2026 | Michael Andersen | Common Stock | A | 3,624 | $0.00 | 12,417 | D | A |
| 17 Feb, 2026 | Phillip Burton | Common Stock | A | 3,248 | $0.00 | 10,251 | D | A |
| 17 Feb, 2026 | Jeremy Gilstrap | Common Stock | D | 418 | $209.01 | 10,900 | D | F |
| 17 Feb, 2026 | Phillip Burton | Common Stock | D | 344 | $209.01 | 9,907 | D | F |
| 17 Feb, 2026 | Cassandra Payton | Common Stock | D | 749 | $209.01 | 4,688 | D | F |
| 17 Feb, 2026 | Michael Olosky | Common Stock | D | 1,582 | $209.01 | 54,896 | D | F |
| 27 Jan, 2026 | Michael Olosky | Common Stock | A | 9,480 | $0.00 | 39,338 | D | A |
| 27 Jan, 2026 | Phillip Burton | Common Stock | A | 1,515 | $0.00 | 7,003 | D | A |
| 27 Jan, 2026 | Matt Dunn | Common Stock | A | 2,667 | $0.00 | 4,872 | D | A |
| 27 Jan, 2026 | Jeremy Gilstrap | Common Stock | A | 1,075 | $0.00 | 8,869 | D | A |
| 27 Jan, 2026 | Udit Mehta | Common Stock | A | 970 | $0.00 | 5,376 | D | A |
| 27 Jan, 2026 | Nozomi Bullock | Common Stock | A | 773 | $0.00 | 773 | D | A |
| 27 Jan, 2026 | Cassandra Payton | Common Stock | A | 1,379 | $0.00 | 4,474 | D | A |
| 27 Jan, 2026 | Michael Andersen | Common Stock | A | 983 | $0.00 | 8,793 | D | A |
| 12 Dec, 2025 | Philip E Donaldson | Common Stock | D | 2,375 | $168.16 | 6,086 | D | S |