Guillermo Briseno - 26 Mar 2026 Form 4 Insider Report for DONALDSON Co INC (DCI)

Reporting relationship: President
Issuer ticker: DCI
Reported as of: 26 Mar 2026
Net transaction value: -$1,750,382
SEC form: 4
Accepted by SEC: 27 Mar 2026, 14:51:45 UTC
Prior SEC filing: 03 Oct 2025
Source filing: View source filing
Reporting owner signature: Amy C. Becker, Attorney-in-Fact for Guillermo Briseno

Key filing fact

Guillermo Briseno filed Form 4 for DONALDSON Co INC (DCI) on 27 Mar 2026.

Key facts

This page summarizes Guillermo Briseno's Form 4 filing for DONALDSON Co INC (DCI).
6 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 27 Mar 2026, 14:51.

Change

Previous filing in this sequence was filed on 03 Oct 2025.
Current net transaction value: -$1,750,382.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001953256 Primary reporting owner

Briseno Guillermo

Relationship: President
Address: PO BOX 1299, MINNEAPOLIS
Signature: Amy C. Becker, Attorney-in-Fact for Guillermo Briseno
Signature date: 27 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

DCI transaction

Common Stock

Options Exercise

Transaction value
Shares: +12,000
Change %: +41%
Price: $42.72^*
Shares after: 41,267
Date: 26 Mar 2026
Ownership: Direct

DCI transaction

Common Stock

Sale

Transaction value: $1,019,640
Shares: -12,000
Change %: -29%
Price: $84.97
Shares after: 29,267
Date: 26 Mar 2026
Ownership: Direct

DCI transaction

Common Stock

Options Exercise

Transaction value
Shares: +8,600
Change %: +29%
Price: $45.43^*
Shares after: 37,867
Date: 26 Mar 2026
Ownership: Direct

DCI transaction

Common Stock

Sale

Transaction value: $730,742
Shares: -8,600
Change %: -23%
Price: $84.97
Shares after: 29,267
Date: 26 Mar 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

DCI transaction Derivative

Employee Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -12,000
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 26 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 12,000
Exercise price: $42.72
Footnotes: F1

DCI transaction Derivative

Employee Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -8,600
Change %: -50%
Price: $0.000000^*
Shares after: 8,600
Date: 26 Mar 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 8,600
Exercise price: $45.43
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Fully vested