Donaldson's three largest insider shareholders as of March 23, 2026 are Tod E. Carpenter (Chairman, President And Ceo, 298.70K shares), Michael J Hoffman (Director, 65.54K shares), John Wiehoff (Director, 63.92K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Tod E. Carpenter | Chairman, President And Ceo | 298,699 | 0 | 29 Sep, 2025 |
| Michael J Hoffman | 65,543 | 0 | 05 Jan, 2022 | |
| John Wiehoff | 63,917 | 0 | 11 Oct, 2022 | |
| Amy C Becker | Chief Legal Officer | 47,459 | 0 | 29 Sep, 2025 |
| Ajita G Rajendra | 44,997 | 0 | 06 Jan, 2026 | |
| Richard Brent Lewis | President | 44,297 | 0 | 03 Oct, 2025 |
| Scott J. Robinson | Chief Financial Officer | 44,042 | 0 | 01 Oct, 2024 |
| Willard D Oberton | 29,834 | 0 | 08 Jul, 2025 | |
| Guillermo Briseno | President | 29,244 | 0 | 25 Sep, 2025 |
| Thomas R Scalf | President | 28,334 | 0 | 18 Mar, 2025 |
| Sheila G. Kramer | Chief Human Resources Officer | 27,363 | 0 | 01 Oct, 2024 |
| Trudy A. Rautio | 27,235 | 0 | 06 Jan, 2026 | |
| Jeffrey E Spethmann | Senior Vice President | 25,828 | 0 | 26 Sep, 2022 |
| James Owens | 22,215 | 0 | 06 Jan, 2026 | |
| Pilar Cruz | 16,747 | 0 | 06 Jan, 2026 | |
| Christopher M. Hilger | 15,342 | 0 | 06 Jan, 2026 | |
| Jacinth C Smiley | 7,644 | 0 | 06 Jan, 2026 | |
| Andrew C Dahlgren | President | 7,504 | 0 | 02 Sep, 2025 |
| Richard M Olson | 6,090 | 0 | 06 Jan, 2026 | |
| Wim Vermeersch | Vice President | 4,669 | 0 | 03 Oct, 2022 |
| Douglas A. Milroy | 2,473 | 0 | 06 Jan, 2026 | |
| Peter Joseph Keller | Corporate Controller | 2,000 | 0 | 30 Dec, 2021 |
| Andrew J. Cebulla | Corporate Controller | 1,638 | 0 | 08 Jul, 2025 |
| Daniel P Shine | 1,000 | 0 | 06 Jan, 2026 | |
| Bradley J. Pogalz | Chief Financial Officer | 434 | 0 | 10 Dec, 2025 |
* 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 | Richard Brent Lewis | Employee Stock Option (right to buy) | A | 15,500 | $0.00 | 15,500 | D | A |
| 02 Jan, 2026 | Jacinth C Smiley | Common Stock | A | 900 | $0.00 | 7,394 | D | A |
| 02 Jan, 2026 | Ajita G Rajendra | Common Stock | A | 900 | $0.00 | 44,997 | D | A |
| 02 Jan, 2026 | Douglas A. Milroy | Common Stock | A | 900 | $0.00 | 2,473 | D | A |
| 02 Jan, 2026 | Daniel P Shine | Common Stock | A | 900 | $0.00 | 1,000 | D | A |
| 02 Jan, 2026 | Richard M Olson | Common Stock | A | 900 | $0.00 | 6,090 | D | A |
| 02 Jan, 2026 | James Owens | Common Stock | A | 900 | $0.00 | 21,965 | D | A |
| 02 Jan, 2026 | Pilar Cruz | Common Stock | A | 900 | $0.00 | 16,747 | D | A |
| 02 Jan, 2026 | Christopher M. Hilger | Common Stock | A | 375 | $89.93 | 14,442 | D | A |
| 02 Jan, 2026 | Trudy A. Rautio | Common Stock | A | 900 | $0.00 | 26,924 | D | A |
| 02 Jan, 2026 | Christopher M. Hilger | Common Stock | A | 900 | $0.00 | 15,342 | D | A |
| 02 Jan, 2026 | Richard M Olson | Stock Option (right to buy) | A | 3,000 | $0.00 | 3,000 | D | A |
| 02 Jan, 2026 | Daniel P Shine | Stock Option (right to buy) | A | 3,000 | $0.00 | 3,000 | D | A |
| 02 Jan, 2026 | Ajita G Rajendra | Stock Option (right to buy) | A | 3,000 | $0.00 | 3,000 | D | A |
| 02 Jan, 2026 | Pilar Cruz | Stock Option (right to buy) | A | 3,000 | $0.00 | 3,000 | D | A |
| 02 Jan, 2026 | Jacinth C Smiley | Common Stock | A | 250 | $89.93 | 7,644 | D | A |
| 02 Jan, 2026 | Trudy A. Rautio | Common Stock | A | 311 | $89.93 | 27,235 | D | A |
| 02 Jan, 2026 | James Owens | Common Stock | A | 250 | $89.93 | 22,215 | D | A |
| 02 Jan, 2026 | Trudy A. Rautio | Stock Option (right to buy) | A | 3,000 | $0.00 | 3,000 | D | A |
| 02 Jan, 2026 | Douglas A. Milroy | Stock Option (right to buy) | A | 3,000 | $0.00 | 3,000 | D | A |