Every Form 4 that Donaldson Company, Inc. (DCI) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow DCI and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full DCI filings page.
DONALDSON Co INC (DCI) reports that Chairman, President and CEO Tod E. Carpenter on September 4, 2026 exercised employee stock options for 31,968 shares of common stock at an exercise price of $42.72 per share, then sold 31,968 common shares at $91.10 per share. The options exercised were fully vested, and following the exercise Carpenter holds 131,500 options directly. He also holds common stock indirectly through benefit plan trusts, with reported positions of 11,303 and 11,978 shares. No transactions are reported as made under a Rule 10b5-1 trading plan.
Donaldson Co Inc (DCI) reported insider activity by Chairman, President and CEO Tod E. Carpenter on 2026-08-31. Carpenter exercised 3,032 employee stock options at an exercise price of $42.72 per share, receiving 3,032 shares of common stock, and then sold 3,032 shares of common stock at $91.00 per share. After the option exercise, he held 163,468 employee stock options directly, and also had indirect ownership of 11,303 and 11,978 common shares through benefit plan trusts.
DONALDSON Co INC (DCI) reported that Chief Financial Officer Bradley J. Pogalz exercised employee stock options for 3,000 shares at an exercise price of $42.72 per share, receiving 3,000 shares of common stock. On the same date, 2,129 shares of common stock were delivered or withheld at $91.84 per share for payment of exercise price or tax liability, resulting in a net acquisition of 871 shares. The exercised option position is now fully vested and exhausted, and he also reports indirect holdings of 47 and 888 shares of common stock held by a Benefit Plan Trust.
Smiley Jacinth C reported acquisition or exercise transactions in this Form 4 filing.
Donaldson Company director Jacinth C. Smiley received a grant of 267 shares of Donaldson common stock on July 3, 2026, at a reference price of $89.09 per share. This was recorded as a compensation-related award rather than an open-market purchase.
Following this grant, Smiley directly holds a total of 8,243 Donaldson common shares. The filing reflects a routine equity award that increases the director’s ownership stake and more closely aligns compensation with shareholder interests.
Rautio Trudy A. reported acquisition or exercise transactions in this Form 4 filing.
Donaldson Company director Trudy A. Rautio received a stock grant of 334 shares of Common Stock, valued at $89.09 per share. This was a compensation-related award, not an open-market purchase. After the grant, she directly owns 28,106 shares of Donaldson Common Stock.
Owens James reported acquisition or exercise transactions in this Form 4 filing.
Donaldson Co. director James Owens received a grant of 267 shares of Common Stock at $89.09 per share. This compensation-related award increased his direct holdings to 22,913 shares, reflecting a routine equity grant rather than an open‑market purchase or sale.
Donaldson Co. Inc. director Christopher M. Hilger reported a stock award of 400 shares of common stock, valued at $89.09 per share. This was a grant classified as a “grant, award, or other acquisition,” not an open-market purchase. After this award, Hilger directly holds 16,244 common shares of Donaldson.
Donaldson Company director James Owens exercised stock options and sold the resulting shares in a series of routine transactions. He exercised options for a total of 19,800 shares of common stock at exercise prices of $42.26 and $48.96 per share, then sold 19,800 shares in open-market trades at prices around $89 per share. After these transactions, he directly holds 22,565 shares of Donaldson common stock.
Smiley Jacinth C reported acquisition or exercise transactions in this Form 4 filing.
Donaldson Co. director Jacinth C. Smiley received a stock grant of 279 shares of Common Stock. The shares were awarded at a value of $85.23 per share and are reported as a non-derivative, direct ownership transaction. Following this award, Smiley directly holds 7,948 shares of Donaldson Common Stock, indicating a routine compensation-related increase rather than an open-market purchase or sale.
Donaldson Co Inc director Trudy A. Rautio received a grant of 349 shares of Common Stock at $85.23 per share. This compensation-related award increased her direct holdings to 27,673 shares. The transaction is an acquisition through a grant, not an open-market purchase.
Owens James reported acquisition or exercise transactions in this Form 4 filing.
Donaldson Company director James Owens received a grant of 279 shares of Common Stock, recorded at $85.23 per share, as equity compensation. This award increased his directly held stake to 22,565 shares, reflecting a routine, non-derivative grant rather than an open-market purchase or sale.
Hilger Christopher M. reported acquisition or exercise transactions in this Form 4 filing.
Donaldson Co. director Christopher M. Hilger received a grant of 418 shares of Common Stock. The award was recorded on April 3, 2026 at an indicated price of $85.23 per share, increasing his direct holdings to 15,799 shares. This is a compensation-related share award, not an open‑market purchase.
Donaldson Co. president Guillermo Briseño reported an exercise-and-sell transaction involving 20,600 shares of common stock. On March 26, 2026, he exercised fully vested employee stock options for 12,000 shares at $42.72 per share and 8,600 shares at $45.43 per share.
He then sold 12,000 and 8,600 common shares, respectively, at $84.97 per share in open-market transactions. Following these trades, Briseño directly holds 29,267 shares of Donaldson common stock, indicating he retained a meaningful equity stake after converting options and realizing gains on part of his position.
Donaldson Company President Richard Brent Lewis reported receiving an employee stock option grant to buy 15,500 shares of common stock at an exercise price of $0.00 per share. The option vests in three equal annual installments beginning on March 2, 2027, providing long-term equity-based compensation.
He also reported beneficial ownership of 44,454 shares of common stock directly, plus 838 and 2,039 shares held indirectly through a benefit plan trust, reflecting his existing equity stake but not indicating additional open-market buying or selling.
Donaldson Company director reports new stock and option awards. Director Jacinth C. Smiley acquired 900 shares of Donaldson common stock on 01/02/2026 at a reported price of $0, and an additional 250 shares on the same date at $89.93 per share. After these transactions, she directly holds 7,644 shares of common stock.
On 01/02/2026, she was also granted a stock option to buy 3,000 shares of Donaldson common stock at an exercise price of $89.93 per share, expiring on 01/02/2036. The option vests in three equal annual installments beginning on January 2, 2027, reflecting a long-term incentive structure tied to the company’s equity.
Donaldson Company director reports new stock and option awards. On 01/02/2026, the reporting person acquired 900 shares of Donaldson common stock at a stated price of $0, bringing directly held common shares to 1,000.
The same day, the director received a stock option to buy 3,000 shares of Donaldson common stock at an exercise price of $89.93 per share. The option expires on 01/02/2036 and will vest in three equal annual installments beginning on January 2, 2027.
Donaldson Company director Trudy Rautio reported acquiring additional company equity. On January 2, 2026, she acquired 900 shares of common stock at a stated price of $0 per share and 311 shares of common stock at $89.93 per share. After these transactions, she beneficially owned 27,235 shares of Donaldson common stock held directly. The same day, she was also granted a stock option for 3,000 shares of Donaldson common stock at an exercise price of $89.93 per share, expiring on January 2, 2036. The option vests in three equal annual installments beginning January 2, 2027.
Donaldson Company director equity update: A director of Donaldson Co Inc (DCI) reported new equity awards effective 01/02/2026. The filing shows an acquisition of 900 shares of common stock at a reported price of $0, bringing the director’s directly held common stock to 44,997 shares. The director also received a stock option covering 3,000 shares with an exercise price of $89.93 per share, expiring on 01/02/2036. The option vests in three equal annual installments beginning on January 2, 2027, which spreads the potential ownership increase over several years.
Donaldson Company director James J. Owens reported new equity awards and share acquisitions. On January 2, 2026, he acquired 900 shares of Donaldson common stock at a reported price of $0 per share and an additional 250 shares at $89.93 per share. Following these transactions, he directly beneficially owned 22,215 shares of common stock.
Owens also received a stock option giving him the right to buy 3,000 Donaldson shares at an exercise price of $89.93 per share, expiring on January 2, 2036. The option vests in three equal annual installments beginning on January 2, 2027, which means the right to exercise the option phases in over three years.
Donaldson Company director Richard M. Olson reported new equity awards in the company’s stock. On January 2, 2026, he acquired 900 shares of common stock at a price of $0, bringing his directly held stake to 6,090 shares after the transaction.
On the same date, Olson also received a stock option grant for 3,000 shares with an exercise price of $89.93 per share, expiring on January 2, 2036. The option vests in three equal annual installments beginning January 2, 2027, meaning the right to buy these shares becomes available gradually over three years.
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.
Donaldson Company director insider transactions disclosed
Director Christopher M. Hilger reported acquiring Donaldson Company common stock and stock options on January 2, 2026. He acquired 375 shares of common stock at $89.93 per share and 900 shares at $0, and held 15,342 shares directly after these transactions.
Hilger was also granted a stock option for 3,000 shares of common stock at an exercise price of $89.93 per share, expiring on January 2, 2036. The option vests in three equal annual installments beginning on January 2, 2027, and he held 3,000 derivative securities directly after the reported transaction.
Donaldson Company director reports stock and option awards
A director of Donaldson Co Inc reported receiving 900 shares of common stock on January 2, 2026 at a stated price of $0, bringing the director's directly held stake to 16,747 common shares. On the same date, the director was granted a stock option for 3,000 shares of common stock with an exercise price of $89.93 per share and no separate option purchase price.
The option covers 3,000 underlying common shares, becomes exercisable in three equal annual installments starting January 2, 2027, and carries an expiration date of January 2, 2036. All reported holdings and awards are listed as directly owned by the reporting person.
Donaldson Company director reports new stock and option awards. Director Daniel P. Shine acquired 100 shares of Donaldson Company common stock on December 8, 2025, reported at a price of $0, bringing his directly held common shares to 100 after the transaction. On the same date, he was also granted a stock option to buy 200 shares of common stock at an exercise price of $91.76 per share, expiring on December 8, 2035.
The option vests in three equal annual installments beginning on December 8, 2026, meaning the right to exercise is spread over three years. Following these awards, Shine directly holds 200 stock options in addition to the 100 common shares.
Donaldson Company’s chief financial officer reported routine equity transactions in company stock. On 12/09/2025, the officer exercised 1,000 employee stock options at an exercise price of $28 per share, receiving an equal number of common shares. That same day, the officer sold 566 shares of Donaldson common stock at a price of $91.57 per share.
Following these transactions, the officer directly owned 434 shares of Donaldson common stock and also held additional shares indirectly through a benefit plan trust, as noted in the filing. The filing is a standard Form 4, which discloses changes in ownership by company insiders so investors can see how key executives are managing their personal stakes.
Donaldson Company director reports stock option exercises and sales
On 12/05/2025, a director of Donaldson Company (DCI) exercised stock options and sold an equivalent number of common shares. The director exercised 13,200 options at an exercise price of $42.26 per share and 6,600 options at $48.96 per share, receiving common stock in each case. On the same date, the director sold 13,200 shares and 6,600 shares of common stock at a sale price of $92.04 per share.
After these transactions, the director directly owned 43,993 shares of Donaldson common stock. The stock options exercised, covering 19,800 underlying shares in total, were described as fully vested, and the remaining balance for those specific option grants is now reported as zero.
Director purchase of common stock recorded. A director reported acquiring $82.61 per share on 10/03/2025, buying 272 shares and increasing total beneficial ownership to 6,473 shares. The transaction was coded as an open-market acquisition and was reported on a Form 4 signed by an attorney-in-fact on 10/06/2025. No derivative transactions or additional remarks were disclosed.
Insider purchase recorded: A Form 4 shows director Trudy A. Rautio bought 339 shares of Donaldson Co. (DCI) on 10/03/2025 at $82.61 per share. After the purchase she directly owns 25,960 shares, indicating continued equity alignment with shareholders. The filing was signed by an attorney-in-fact on 10/06/2025.
James J. Owens, a director of Donaldson Co., Inc. (Ticker: DCI), reported the purchase of 272 shares of the company's common stock on 10/03/2025 at a price of $82.61 per share. Following the transaction, beneficial ownership is reported as 20,997 shares. The Form 4 was filed and signed by an attorney-in-fact on 10/06/2025.
Director purchase increases stake in Donaldson Co. (DCI). A Form 4 shows director Christopher M. Hilger purchased 409 shares of common stock on 10/03/2025 at a price of $82.61 per share, bringing his beneficial ownership to 14,032 shares. The filing was signed by an attorney-in-fact on 10/06/2025. This is a routine Section 16 disclosure reporting an open-market or other permitted acquisition by an insider and does not include derivatives or option activity.
Bradley J. Pogalz, Chief Financial Officer of Donaldson Company, reported changes in beneficial ownership on Form 4. On 10/01/2025 he exercised an employee stock option with an exercise price of $82.08 to acquire 23,900 shares of Common Stock; those shares are held directly following the transaction. The option has an expiration date of 10/01/2035 and vests in three equal annual installments beginning on October 1, 2026. The filing also discloses indirect beneficial ownership of 47 and 798 shares held by a benefit plan trust. The Form 4 was signed by Amy C. Becker as attorney-in-fact on 10/03/2025.
Richard B. Lewis, an officer (President) of DONALDSON Co. Inc. (DCI), reported several transactions on 10/01/2025–10/02/2025. He acquired 13,500 shares on 10/02/2025 at $28 per share under transaction code M, and exercised 42,100 employee stock options with an exercise price of $82.08 (transaction code A, dated 10/01/2025). Following the reported activity, he beneficially owned 53,279 shares in total, including holdings in a Benefit Plan Trust (832 and 3,866 shares listed as indirect). The filing notes the $28-strike options granted on 10/02/2025 were fully vested, while the exercised $82.08-strike option vests in three equal annual installments beginning 10/01/2026. The form is signed by an attorney-in-fact on 10/03/2025.
Bart C. Driesen, listed as President and an officer of Donaldson Co., Inc. (DCI), reported a transaction dated 10/01/2025 showing two changes in his holdings. He disposed of 5,161 shares of common stock, reducing his non‑derivative holdings, and acquired 15,300 employee stock options with an exercise price of $82.08. The options are exercisable immediately as reported, expire on 10/01/2035, and the filing states the options vest in three equal annual installments beginning on 10/01/2026. The reported ownership after the transactions shows 15,300 underlying shares from the option award held directly.
Reporting person Darcy J. DeVincke, Chief Human Resources Officer of Donaldson Co. Inc. (DCI), reported transactions dated 10/01/2025. The report shows an indirect holding of 3,863 shares of Common Stock held indirectly through a Benefit Plan Trust. It also discloses an employee stock option grant for 11,500 shares with an exercise price of $82.08, granted 10/01/2025, exercisable beginning 10/01/2026 and expiring 10/01/2035. The option vests in three equal annual installments starting on 10/01/2026. The Form 4 was signed by an attorney-in-fact and filed on 10/03/2025.
Guillermo Briseno, an officer (President) of DONALDSON Co Inc (DCI), reported transactions dated 10/01/2025. The filing shows a disposition of 29,244 shares of common stock and the acquisition/exercise of 15,300 employee stock options with an exercise price of $82.08. The options convert to 15,300 common shares and are recorded as directly owned; the option grant vests in three equal annual installments beginning 10/01/2026. The Form 4 was signed on 10/03/2025 by an attorney-in-fact.
Andrew J. Cebulla, Corporate Controller of DONALDSON Co INC (DCI), reported changes in ownership on a Form 4. The filing shows a grant of an employee stock option for 5,186 shares with an exercise price of $82.08 and an exercise/expiration window listed through 10/01/2035. The option was granted on 10/01/2025 and the filing notes it vests in three equal annual installments beginning 10/01/2026. After the reported transactions the reporter beneficially owns 5,186 underlying shares via the option reported as direct ownership. The form also records a disposition of 1,644 shares and an indirect holding of 287 shares held by benefit plan trust. The filing is signed on behalf of Mr. Cebulla by an attorney-in-fact on 10/03/2025.
Tod E. Carpenter, who serves as Chairman, President and CEO of Donaldson Co., Inc. (DCI), reported Section 16 transactions with an effective date of 10/01/2025 and a filing date of 10/03/2025. The Form 4 shows an acquisition of 122,600 employee stock options with an exercise price of $82.08 that are exercisable beginning 10/01/2026 and expire 10/01/2035; the option vests in three equal annual installments starting on 10/01/2026. The filing also discloses a disposition of 298,699 shares of common stock and indirect beneficial ownership of 11,079 and 11,815 shares held through a Benefit Plan Trust. The report was submitted by Amy C. Becker as attorney-in-fact for Mr. Carpenter.
Amy C. Becker, Chief Legal Officer of DONALDSON Co INC (DCI), reported multiple equity transactions dated 10/01/2025. The filing shows 17,000 employee stock options with an exercise price of $82.08 were acquired (reported as Code A) and are recorded as 17,000 shares underlying the option. The option grant note states it vests in three equal annual installments beginning October 1, 2026. Separately, the report shows transfer activity through a benefit plan trust: 1,564 and 8,552 shares are listed as acquired indirectly (Code V) and 47,459 shares are shown as disposed. The form is signed and dated 10/03/2025.
Donaldson Co President Lewis Richard Brent received a grant of 5,942 shares of common stock on September 25, 2025. On the same date, 140 shares were delivered at $80.04 per share to satisfy tax liability. After these events he held 39,779 shares directly, plus additional indirect holdings through benefit plan trusts.
Tod E. Carpenter, Chairman, President and CEO of DONALDSON Co Inc (DCI), reported insider transactions dated 09/25/2025. The filing shows vested/benefit-plan holdings of 11,079 and 11,815 shares held indirectly in benefit plan trusts. On 09/25/2025 he acquired 36,296 shares (reported at $0) and disposed of 17,858 shares at $80.04. The filing lists beneficial ownership figures of 316,557 and 298,699 shares following the reported transactions.
Guillermo Briseno, listed as President of Donaldson Co Inc (DCI), reported a transaction on 09/25/2025. The Form 4 shows he acquired 3,935 shares of common stock, bringing his total beneficial ownership to 29,244 shares. The reported price is listed as $0. The filing was submitted by Amy C. Becker as Attorney-in-Fact and is a single-person Form 4 submission.
Amy C. Becker, Chief Legal Officer of Donaldson Company, reported multiple transactions in DCI stock on 09/25/2025. The Form 4 shows an acquisition of 5,541 shares (reported at $0) and a separate disposition of 2,727 shares at $80.04. After the transactions the filing reports 47,459 shares beneficially owned. The filing also lists indirect holdings of 8,552 and 1,564 shares held by a benefit plan trust. The document is a routine insider transaction report from a company officer.