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Donaldson Co Inc (DCI) director discloses new stock and option grants

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Donaldson Co Inc director reports stock and option awards

A director of Donaldson Co Inc reported receiving 900 shares of common stock on 01/02/2026 at a stated price of $0. After this transaction, the director beneficially owns 2,473 common shares directly and 12,592 common shares indirectly through a trust where the director and spouse serve as trustees and beneficiaries.

The director was also granted a stock option to buy 3,000 shares of common stock at an exercise price of $89.93 per share on 01/02/2026. This option expires on 01/02/2036 and vests in three equal annual installments beginning January 2, 2027. All reported holdings are listed as beneficially owned following these awards.

Positive

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Insider Milroy Douglas A.
Role Director
Type Security Shares Price Value
Grant/Award Stock Option (right to buy) 3,000 $0.00 --
Grant/Award Common Stock 900 $0.00 --
holding Common Stock -- -- --
Holdings After Transaction: Stock Option (right to buy) — 3,000 shares (Direct); Common Stock — 2,473 shares (Direct); Common Stock — 12,592 shares (Indirect, By Trust)
Footnotes (1)
  1. The Reporting Person and his spouse are the trustees and beneficiaries of the trust. The option vests in three equal annual installments beginning on January 2, 2027.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Milroy Douglas A.
(Last) (First) (Middle)
1400 WEST 94TH STREET
(Street)
BLOOMINGTON MN 55431
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
DONALDSON Co INC [ DCI ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
01/02/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 01/02/2026 A 900 A $0 2,473 D
Common Stock 12,592 I By Trust(1)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (right to buy) $89.93 01/02/2026 A 3,000 (2) 01/02/2036 Common Stock 3,000 $0 3,000 D
Explanation of Responses:
1. The Reporting Person and his spouse are the trustees and beneficiaries of the trust.
2. The option vests in three equal annual installments beginning on January 2, 2027.
Remarks:
Amy C. Becker, Attorney-in-fact for Douglas A. Milroy 01/06/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Donaldson Co Inc (DCI) report on January 2, 2026?

A director of Donaldson Co Inc reported acquiring 900 shares of common stock on 01/02/2026 at a stated price of $0, increasing the director’s reported beneficial ownership.

How many Donaldson Co Inc (DCI) shares does the director own after this Form 4?

Following the reported transaction, the director beneficially owns 2,473 common shares directly and 12,592 common shares indirectly through a trust where the director and spouse are trustees and beneficiaries.

What stock option grant was reported for the Donaldson Co Inc (DCI) director?

The director received a stock option to buy 3,000 shares of Donaldson Co Inc common stock at an exercise price of $89.93 per share, granted on 01/02/2026 and expiring on 01/02/2036.

When do the newly granted Donaldson Co Inc (DCI) stock options vest?

The reported stock option vests in three equal annual installments, beginning on January 2, 2027, as disclosed in the explanation of responses.

How is the indirect ownership of Donaldson Co Inc (DCI) shares structured for this director?

The director reports indirect ownership of 12,592 common shares held by a trust, where the director and spouse are both trustees and beneficiaries.

What is the director’s relationship to Donaldson Co Inc (DCI) in this filing?

The filing identifies the reporting person as a director of Donaldson Co Inc, with the Form 4 filed for one reporting person.