DCI Director Buys 316 Shares at $71.26 – Form 4 Filing

Donaldson Company, Inc. (DCI) – Form 4 insider transaction Director Christopher M. Hilger disclosed the purchase of 316 shares of Donaldson common stock on 07/07/2025 at a price of $71.26 per share.

Rhea-AI Filing Summary

Donaldson Company, Inc. (DCI) – Form 4 insider transaction

Director Christopher M. Hilger disclosed the purchase of 316 shares of Donaldson common stock on 07/07/2025 at a price of $71.26 per share. Following the trade, Hilger’s direct beneficial ownership stands at 13,479 shares. The Form 4 was signed and filed on 07/08/2025.

No derivative securities transactions or additional remarks were reported.

Insights

Securities Analyst

TL;DR Small insider buy (316 shares) by director; signal is neutral due to immaterial size.

The filing shows a modest open-market purchase by a board member at market price. While insider buying can indicate confidence, the $22.5 k transaction value is de minimis relative to Donaldson’s market capitalization, so it should not materially influence valuation models or sentiment. No option exercises, no sales, and no changes to derivative positions were disclosed. Overall impact on the stock is expected to be neutral.

Insider Trade Summary

Grant/Award: 316 shares

Grant/Award 1 txn

Insider Hilger Christopher M.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	316	$71.26	$23K

Holdings After Transaction: Common Stock — 13,479 shares (Direct)

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction was reported for Donaldson Company (DCI)?

A Form 4 shows Director Christopher M. Hilger purchased 316 shares of common stock.

At what price did Christopher M. Hilger buy the DCI shares?

The shares were bought at $71.26 per share.

How many Donaldson (DCI) shares does Hilger own after the purchase?

His direct beneficial ownership increased to 13,479 shares.

When did the transaction occur and when was the Form 4 filed?

The purchase took place on 07/07/2025; the Form 4 was filed on 07/08/2025.

Is the insider purchase considered material for investors?

Given the small size (≈$22.5 k), the filing is not deemed materially significant to overall investor outlook.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/08/2025 - 01:49 PM Learn about SEC filing dates

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^*

Hilger Christopher M.

(Last) (First) (Middle)

PO BOX 1299

(Street)

MINNEAPOLIS MN 55440

(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)
07/07/2025

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	07/07/2025		A		316	A	$71.26	13,479	D

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

Explanation of Responses:

Remarks:

	Amy C. Becker, Attorney-in-Fact for Christopher M. Hilger	07/08/2025
	** 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.