Richard Brent Lewis Donaldson CO Inc (DCI) insider trading activity

Richard Brent Lewis is President of DONALDSON CO INC. Currently has a direct ownership of 44,297 shares of DCI, which is worth approximately $3.79 Million. The most recent transaction as insider was on Oct 02, 2025, when has been sold 8,982 shares (Common Stock) at a price of $82.08 per share, resulting in proceeds of $737,242. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 44.3K

0% 3M change

42.63% 12M change

Total Value Held $3.79 Million

Richard Brent Lewis Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Oct 02 2025	SELL Payment of exercise price or tax liability	$737,242 $82.08 p/Share	8,982 Reduced 16.86%	44,297 Common Stock
Oct 02 2025	BUY Exercise of conversion of derivative security	$378,000 $28.0 p/Share	13,500 Added 20.22%	53,279 Common Stock
Sep 25 2025	SELL Payment of exercise price or tax liability	$11,205 $80.04 p/Share	140 Reduced 0.35%	39,779 Common Stock
Sep 25 2025	BUY Grant, award, or other acquisition	-	5,942 Added 12.96%	39,919 Common Stock
Jun 04 2025	SELL Payment of exercise price or tax liability	$510,598 $69.29 p/Share	7,369 Reduced 17.89%	33,832 Common Stock
Jun 04 2025	BUY Exercise of conversion of derivative security	$358,000 $35.8 p/Share	10,000 Added 19.53%	41,201 Common Stock
Sep 27 2024	SELL Payment of exercise price or tax liability	$12,770 $73.82 p/Share	173 Reduced 0.55%	31,058 Common Stock

Sep 27 2024	BUY Grant, award, or other acquisition	-	7,381 Added 19.12%	31,231 Common Stock
Jun 14 2024	SELL Payment of exercise price or tax liability	$167,741 $73.83 p/Share	2,272 Reduced 8.72%	23,769 Common Stock
Jun 14 2024	BUY Exercise of conversion of derivative security	$116,340 $38.78 p/Share	3,000 Added 10.33%	26,041 Common Stock
Sep 21 2023	SELL Payment of exercise price or tax liability	$15,332 $59.66 p/Share	257 Reduced 1.11%	22,962 Common Stock
Sep 21 2023	BUY Grant, award, or other acquisition	-	10,927 Added 32.0%	23,219 Common Stock
Sep 05 2023	SELL Payment of exercise price or tax liability	$159,595 $64.85 p/Share	2,461 Reduced 16.68%	12,292 Common Stock
Sep 05 2023	BUY Exercise of conversion of derivative security	$126,149 $42.05 p/Share	3,000 Added 16.9%	14,753 Common Stock
Sep 22 2022	SELL Payment of exercise price or tax liability	$88,854 $50.89 p/Share	1,746 Reduced 12.93%	11,753 Common Stock
Sep 22 2022	BUY Grant, award, or other acquisition	-	3,580 Added 20.96%	13,499 Common Stock
Sep 09 2022	SELL Payment of exercise price or tax liability	$149,040 $52.35 p/Share	2,847 Reduced 22.3%	9,919 Common Stock
Sep 09 2022	BUY Exercise of conversion of derivative security	$117,530 $33.58 p/Share	3,500 Added 21.52%	12,766 Common Stock
Jun 15 2021	SELL Payment of exercise price or tax liability	$191,636 $61.54 p/Share	3,114 Reduced 25.15%	9,266 Common Stock
Jun 15 2021	BUY Exercise of conversion of derivative security	$139,520 $34.88 p/Share	4,000 Added 24.42%	12,380 Common Stock

RBL

Richard Brent Lewis

President

Bloomington, MN

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