DCI insider trading — Donaldson Co Inc
Over the last 90 days, insiders at Donaldson Co Inc (DCI) made 0 open-market purchases worth $0 and 2 open-market sales worth $3.19M, making them net sellers by $3.19M. The largest sale was by Carpenter Tod E. (Chairman, President and CEO), who sold 31,968 shares for $2.91M on Sep 4, 2026.
Updated Oct 16, 2026.
Recent DCI insider transactions
Every Form 4 filed by Donaldson Co Inc officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | Smiley Jacinth C | Director | A · Grant/award | Direct | 268 | $88.65 | $24K | Form 4 |
| Oct 2, 2026 | Rautio Trudy A. | Director | A · Grant/award | Direct | 336 | $88.65 | $30K | Form 4 |
| Oct 2, 2026 | Owens James | Director | A · Grant/award | Direct | 268 | $88.65 | $24K | Form 4 |
| Oct 2, 2026 | Hilger Christopher M. | Director | A · Grant/award | Direct | 402 | $88.65 | $36K | Form 4 |
| Sep 24, 2026 | Lewis Richard Brent | President | A · Grant/award | Direct | 6,340 | — | — | Form 4 |
| Sep 24, 2026 | Lewis Richard Brent | President | F · Tax withholding | Direct | 149 | $86.60 | $13K | Form 4 |
| Sep 24, 2026 | Driesen Bart C. | President | A · Grant/award | Direct | 4,465 | — | — | Form 4 |
| Sep 24, 2026 | Driesen Bart C. | President | F · Tax withholding | Direct | 2,661 | $86.60 | $230K | Form 4 |
| Sep 24, 2026 | Carpenter Tod E. | Chairman, President and CEO | A · Grant/award | Direct | 38,131 | — | — | Form 4 |
| Sep 24, 2026 | Carpenter Tod E. | Chairman, President and CEO | F · Tax withholding | Direct | 18,761 | $86.60 | $1.62M | Form 4 |
| Sep 24, 2026 | Becker Amy C | Chief Legal Officer | A · Grant/award | Direct | 5,983 | — | — | Form 4 |
| Sep 24, 2026 | Becker Amy C | Chief Legal Officer | F · Tax withholding | Direct | 2,944 | $86.60 | $255K | Form 4 |
| Sep 4, 2026 | Carpenter Tod E. | Chairman, President and CEO | M · Option exercise | Direct | 31,968 | $42.72 | $1.37M | Form 4 |
| Sep 4, 2026 | Carpenter Tod E. | Chairman, President and CEO | S · Sale | Direct | 31,968 | $91.10 | $2.91M | Form 4 |
| Aug 31, 2026 | Carpenter Tod E. | Chairman, President and CEO | M · Option exercise | Direct | 3,032 | $42.72 | $130K | Form 4 |
| Aug 31, 2026 | Carpenter Tod E. | Chairman, President and CEO | S · Sale | Direct | 3,032 | $91.00 | $276K | Form 4 |
| Aug 27, 2026 | Pogalz Bradley J. | Chief Financial Officer | M · Option exercise | Direct | 3,000 | $42.72 | $128K | Form 4 |
| Aug 27, 2026 | Pogalz Bradley J. | Chief Financial Officer | F · Tax withholding | Direct | 2,129 | $91.84 | $196K | Form 4 |
DCI insider trading FAQ
Are insiders buying DCI stock?
Not on the open market. In the last 90 days, Donaldson Co Inc insiders made no open-market purchases, and 2 open-market sales totaling $3.19M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading DCI?
Recent sellers: Carpenter Tod E..
Where does DCI insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.