NYSE:DCI

Donaldson Company Stock Insider Trading

Industrials > Industrial - Machinery

Buy DCI

*Your capital is at risk

$94.24

+1.58 (+1.71%)

At Close: Jul 31, 2026

Donaldson Company Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 38.78. In total, the insiders bought 812.64K and sold 46.38K DCI shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	38.78
● Buy	812.64K shares
● Sell	46.38K shares
92% Buy Activity Weak Negative Correlation
Sell Signal Low Confidence Apr 13, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 38.78. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Dec 08, 2025 Buy	Common Stock A-Award	Shine Daniel P Director	Director	100 Value: $9K
Dec 08, 2025 Buy	Stock Option (right to buy) A-Award	Shine Daniel P Director	Director	200 Value: $18.4K
Dec 05, 2025 Buy	Stock Option (right to buy) M-Exempt	Rajendra Ajita G Director	Director	6 600 Value: $323.1K
Dec 05, 2025 Buy	Stock Option (right to buy) M-Exempt	Rajendra Ajita G Director	Director	13 200 Value: $557.8K
Dec 05, 2025 Sell	Common Stock S-Sale	Rajendra Ajita G Director	Director	6 600 Value: $607.5K
Dec 05, 2025 Buy	Common Stock M-Exempt	Rajendra Ajita G Director	Director	6 600 Value: $323.1K
Dec 05, 2025 Buy	Common Stock M-Exempt	Rajendra Ajita G Director	Director	13 200 Value: $557.8K
Nov 21, 2025 Buy	Common Stock	Shine Daniel P Director	Director	0 Value: $0
Oct 03, 2025 Buy	Common Stock A-Award	Smiley Jacinth C Director	Director	272 Value: $22.5K
Oct 03, 2025 Buy	Common Stock A-Award	Rautio Trudy A. Director	Director	339 Value: $28.0K
Oct 03, 2025 Buy	Common Stock A-Award	Owens James Director	Director	272 Value: $22.5K
Oct 03, 2025 Buy	Common Stock A-Award	Hilger Christopher M. Director	Director	409 Value: $33.8K
Oct 03, 2025 Buy	Common Stock A-Award	Hilger Christopher M. Director	Director	409 Value: $33.8K
Oct 03, 2025 Buy	Common Stock A-Award	Owens James Director	Director	272 Value: $22.5K
Oct 03, 2025 Buy	Common Stock A-Award	Rautio Trudy A. Director	Director	339 Value: $28.0K
Oct 03, 2025 Buy	Common Stock A-Award	Smiley Jacinth C Director	Director	272 Value: $22.5K
Oct 02, 2025 Buy	Common Stock M-Exempt	Lewis Richard Brent President	CEO / President	13 500 Value: $378.0K
Oct 02, 2025 Sell	Common Stock F-InKind	Lewis Richard Brent President	CEO / President	8 982 Value: $737.2K
Oct 02, 2025 Buy	Employee Stock Option (right to buy) M-Exempt	Lewis Richard Brent President	CEO / President	13 500 Value: $378.0K
Oct 02, 2025 Buy	Employee Stock Option (right to buy) M-Exempt	Lewis Richard Brent President	CEO / President	13 500 Value: $378.0K
Oct 02, 2025 Sell	Common Stock F-InKind	Lewis Richard Brent President	CEO / President	8 982 Value: $737.2K
Oct 02, 2025 Buy	Common Stock M-Exempt	Lewis Richard Brent President	CEO / President	13 500 Value: $378.0K
Oct 01, 2025 Buy	Employee Stock Option (right to buy) A-Award	Pogalz Bradley J. Chief Financial Officer	C-Suite Officer	23 900 Value: $1.96M
Oct 01, 2025 Buy	Employee Stock Option (right to buy) A-Award	Lewis Richard Brent President	CEO / President	42 100 Value: $3.46M
Oct 01, 2025 Buy	Employee Stock Option (right to buy) A-Award	Driesen Bart C. President	CEO / President	15 300 Value: $1.26M

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT DONALDSON COMPANY, INC

Donaldson Company, Inc. manufactures and sells filtration systems and replacement parts worldwide. The company operates through two segments, Engine Products and Industrial Products. Its Engine Products segment provides replacement filters for air and liquid filtration applications; air filtration systems; liquid filtration systems for fuel, lube, and hydraulic applications; exhaust and emissions systems and sensors; indicators; and monitoring sy...

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