The Filings Report

Donaldson Company, Inc. insider trading

DCIfinancial statementsForm 4 filings on EDGAR131 transactions since Nov 9, 2024

From August 12, 2026 to November 9, 2026, 0 insiders at Donaldson Company, Inc. bought $0 of stock in the open market, and 1 sold $3M. Officers and directors accounted for $0 of purchases and $3M of sales. The last reported transaction was an award by Smiley Jacinth C on October 2, 2026.

The answer card and chart use the same period. Change the range above the chart to update both. Form 4 filings through October 5, 2026; awards, option exercises, tax withholding and gifts are excluded from these totals.

Stock price and insider activity

Daily price candles with insider purchases and sales directly beneath them on the same timeline. Bars show individual days; totals sum all days in the selected period.

DCI daily priceSplit-adjusted prices in US dollars

Bought $0Sold $3MAug 12, 2026 – Nov 9, 2026

Nov 6, 2026O $83.72 · H $84.51 · L $83.01 · C $84.33Bought $0 (0)Sold $0 (0)
$82$86$90$95$992026-08-12: open $97.27, high $97.38, low $95.80, close $96.272026-08-13: open $96.63, high $96.63, low $95.26, close $95.712026-08-14: open $95.25, high $96.22, low $94.81, close $95.952026-08-17: open $94.90, high $95.89, low $94.56, close $94.682026-08-18: open $94.31, high $94.99, low $91.69, close $93.972026-08-19: open $94.45, high $94.90, low $92.78, close $92.802026-08-20: open $92.05, high $93.55, low $91.81, close $92.442026-08-21: open $93.31, high $94.15, low $92.56, close $93.252026-08-24: open $93.60, high $94.08, low $91.92, close $92.432026-08-25: open $93.64, high $93.86, low $92.36, close $93.262026-08-26: open $95.13, high $97.96, low $94.08, close $95.242026-08-27: open $93.52, high $96.26, low $91.54, close $92.412026-08-28: open $92.25, high $93.18, low $90.84, close $91.892026-08-31: open $91.68, high $92.54, low $90.46, close $90.892026-09-01: open $90.21, high $90.99, low $89.28, close $89.762026-09-02: open $89.96, high $90.93, low $89.08, close $89.912026-09-03: open $90.59, high $90.67, low $89.16, close $90.602026-09-04: open $90.34, high $91.51, low $90.30, close $91.032026-09-08: open $90.75, high $91.79, low $90.11, close $90.992026-09-09: open $90.41, high $90.60, low $89.26, close $89.812026-09-10: open $89.07, high $89.07, low $87.99, close $88.182026-09-11: open $89.50, high $89.50, low $88.67, close $89.252026-09-14: open $87.88, high $89.03, low $87.46, close $87.932026-09-15: open $88.71, high $88.71, low $86.38, close $87.062026-09-16: open $87.69, high $88.06, low $85.24, close $86.332026-09-17: open $87.70, high $87.70, low $85.84, close $86.052026-09-18: open $86.02, high $86.52, low $85.48, close $86.442026-09-21: open $86.94, high $87.17, low $86.04, close $86.072026-09-22: open $86.75, high $86.89, low $85.70, close $86.052026-09-23: open $85.66, high $87.06, low $85.62, close $86.742026-09-24: open $86.35, high $87.03, low $85.89, close $86.602026-09-25: open $86.59, high $87.93, low $86.59, close $87.412026-09-28: open $87.10, high $87.96, low $86.05, close $87.482026-09-29: open $87.58, high $88.37, low $87.02, close $87.312026-09-30: open $87.60, high $87.82, low $86.83, close $87.042026-10-01: open $86.97, high $88.64, low $86.34, close $87.762026-10-02: open $88.68, high $89.84, low $88.23, close $88.652026-10-05: open $88.40, high $90.57, low $88.06, close $89.192026-10-06: open $89.63, high $90.54, low $89.50, close $90.112026-10-07: open $89.01, high $89.60, low $86.63, close $87.262026-10-08: open $86.68, high $87.56, low $86.59, close $87.162026-10-09: open $87.53, high $87.68, low $86.77, close $86.932026-10-12: open $86.76, high $87.86, low $86.39, close $86.472026-10-13: open $86.91, high $87.25, low $85.93, close $87.162026-10-14: open $86.40, high $87.51, low $86.40, close $87.212026-10-15: open $87.56, high $87.83, low $86.34, close $87.772026-10-16: open $88.04, high $88.87, low $87.17, close $87.972026-10-19: open $87.84, high $88.42, low $87.16, close $87.322026-10-20: open $86.89, high $88.25, low $86.84, close $87.602026-10-21: open $88.09, high $88.76, low $87.89, close $88.652026-10-22: open $87.80, high $87.80, low $85.06, close $86.122026-10-23: open $85.38, high $86.04, low $84.45, close $84.792026-10-26: open $85.56, high $86.56, low $85.51, close $85.512026-10-27: open $86.22, high $86.22, low $85.08, close $85.402026-10-28: open $86.06, high $86.06, low $84.48, close $85.062026-10-29: open $85.40, high $85.81, low $84.71, close $85.292026-10-30: open $84.84, high $85.82, low $82.50, close $82.962026-11-02: open $84.25, high $86.29, low $83.74, close $85.332026-11-03: open $85.65, high $87.29, low $84.81, close $85.902026-11-04: open $86.38, high $86.97, low $83.71, close $85.522026-11-05: open $85.84, high $86.71, low $82.95, close $83.272026-11-06: open $83.72, high $84.51, low $83.01, close $84.33Insider purchases / sales · USD$5M$0−$5M2026-08-31: 0 purchases ($0), 1 sales ($276K)2026-09-04: 0 purchases ($0), 1 sales ($3M)Aug 12Sep 2Sep 25Oct 16Nov 6

purchases above zero; sales below. Both use the transaction date and the same dollar scale. Hover, tap, or use arrow keys to inspect a date. Awards, exercises, tax withholding and gifts are excluded.

Dates with prices or insider activity are spaced evenly; empty weekends and holidays are omitted. Prices through Nov 6, 2026. Insider data through Nov 9, 2026. Prices are adjusted for splits; transaction values are reported dollars.

Every transaction

131 transactions from November 9, 2024 to November 9, 2026, newest first. Open-market purchases and sales are coloured; awards, exercises, tax withholding and gifts are grey and not counted.

TradedInsiderRoleTransactionSharesPriceValueHeld afterFiled
Oct 2, 2026Smiley Jacinth CDirectoraward268$88.65$24K8,540Oct 5, 2026
Oct 2, 2026Rautio Trudy A.Directoraward336$88.65$30K28,541Oct 5, 2026
Oct 2, 2026Owens JamesDirectoraward268$88.65$24K23,261Oct 5, 2026
Oct 2, 2026Hilger Christopher M.Directoraward402$88.65$36K16,692Oct 5, 2026
Sep 24, 2026Lewis Richard BrentPresidentaward6,340$0.00—50,966Sep 28, 2026
Sep 24, 2026Lewis Richard BrentPresidenttax withholding149$86.60$13K50,817Sep 28, 2026
Sep 24, 2026Driesen Bart C.Presidentaward4,465$0.00—14,577Sep 28, 2026
Sep 24, 2026Driesen Bart C.Presidenttax withholding2,661$86.60$230K11,916Sep 28, 2026
Sep 24, 2026Carpenter Tod E.Chairman, President and CEO, Directoraward38,131$0.00—336,830Sep 28, 2026
Sep 24, 2026Carpenter Tod E.Chairman, President and CEO, Directortax withholding18,761$86.60$2M318,069Sep 28, 2026
Sep 24, 2026Becker Amy CChief Legal Officeraward5,983$0.00—53,447Sep 28, 2026
Sep 24, 2026Becker Amy CChief Legal Officertax withholding2,944$86.60$255K50,503Sep 28, 2026
Sep 4, 2026Carpenter Tod E.Chairman, President and CEO, Directoroption exercise31,968$42.72$1M330,667Sep 10, 2026
Sep 4, 2026Carpenter Tod E.Chairman, President and CEO, Directoropen-market sale31,968$91.10$3M298,699Sep 10, 2026
Aug 31, 2026Carpenter Tod E.Chairman, President and CEO, Directoroption exercise3,032$42.72$130K301,731Sep 1, 2026
Aug 31, 2026Carpenter Tod E.Chairman, President and CEO, Directoropen-market sale3,032$91.00$276K298,699Sep 1, 2026
Aug 27, 2026Pogalz Bradley J.Chief Financial Officeroption exercise3,000$42.72$128K3,434Aug 28, 2026
Aug 27, 2026Pogalz Bradley J.Chief Financial Officertax withholding2,129$91.84$196K1,305Aug 28, 2026
Jul 3, 2026Smiley Jacinth CDirectoraward267$89.09$24K8,243Jul 7, 2026
Jul 3, 2026Rautio Trudy A.Directoraward334$89.09$30K28,106Jul 7, 2026
Jul 3, 2026Owens JamesDirectoraward267$89.09$24K22,913Jul 7, 2026
Jul 3, 2026Hilger Christopher M.Directoraward400$89.09$36K16,244Jul 7, 2026
Apr 14, 2026Owens JamesDirectoroption exercise7,153$42.26$302K29,718Apr 14, 2026
Apr 14, 2026Owens JamesDirectoropen-market sale7,153$89.21$638K22,565Apr 14, 2026
Apr 14, 2026Owens JamesDirectoroption exercise6,600$48.96$323K29,165Apr 14, 2026
Apr 14, 2026Owens JamesDirectoropen-market sale6,600$89.21$589K22,565Apr 14, 2026
Apr 13, 2026Owens JamesDirectoroption exercise5,921$42.26$250K28,486Apr 14, 2026
Apr 13, 2026Owens JamesDirectoropen-market sale5,921$89.02$527K22,565Apr 14, 2026
Apr 10, 2026Owens JamesDirectoroption exercise126$42.26$5K22,691Apr 14, 2026
Apr 10, 2026Owens JamesDirectoropen-market sale126$88.82$11K22,565Apr 14, 2026
Apr 3, 2026Smiley Jacinth CDirectoraward279$85.23$24K7,948Apr 6, 2026
Apr 3, 2026Rautio Trudy A.Directoraward349$85.23$30K27,673Apr 6, 2026
Apr 3, 2026Owens JamesDirectoraward279$85.23$24K22,565Apr 6, 2026
Apr 3, 2026Hilger Christopher M.Directoraward418$85.23$36K15,799Apr 6, 2026
Mar 26, 2026Briseno GuillermoPresidentopen-market sale8,600$84.97$731K29,267Mar 27, 2026
Mar 26, 2026Briseno GuillermoPresidentoption exercise8,600$45.43$391K37,867Mar 27, 2026
Mar 26, 2026Briseno GuillermoPresidentopen-market sale12,000$84.97$1M29,267Mar 27, 2026
Mar 26, 2026Briseno GuillermoPresidentoption exercise12,000$42.72$513K41,267Mar 27, 2026
Jan 2, 2026Smiley Jacinth CDirectoraward250$89.93$22K7,644Jan 6, 2026
Jan 2, 2026Smiley Jacinth CDirectoraward900$0.00—7,394Jan 6, 2026
Jan 2, 2026Shine Daniel PDirectoraward900$0.00—1,000Jan 6, 2026
Jan 2, 2026Rautio Trudy A.Directoraward900$0.00—26,924Jan 6, 2026
Jan 2, 2026Rautio Trudy A.Directoraward311$89.93$28K27,235Jan 6, 2026
Jan 2, 2026Rajendra Ajita GDirectoraward900$0.00—44,997Jan 6, 2026
Jan 2, 2026Owens JamesDirectoraward900$0.00—21,965Jan 6, 2026
Jan 2, 2026Owens JamesDirectoraward250$89.93$22K22,215Jan 6, 2026
Jan 2, 2026Olson Richard MDirectoraward900$0.00—6,090Jan 6, 2026
Jan 2, 2026Milroy Douglas A.Directoraward900$0.00—2,473Jan 6, 2026
Jan 2, 2026Hilger Christopher M.Directoraward900$0.00—15,342Jan 6, 2026
Jan 2, 2026Hilger Christopher M.Directoraward375$89.93$34K14,442Jan 6, 2026

Who the insiders are

Everyone who reported a transaction since November 9, 2024, by open-market value over twelve months. Shares held are after the insider’s latest directly held transaction.

InsiderRoleLast transactionKindShares heldBought, 12 monthsSold, 12 monthsSales under a plan
Carpenter Tod E.Chairman, President and CEO, DirectorSep 24, 2026award336,830—$3M (2)0 of 2
Rajendra Ajita GDirectorJan 2, 2026award44,997—$2M (2)0 of 2
Owens JamesDirectorOct 2, 2026award23,261—$2M (4)0 of 4
Briseno GuillermoPresidentMar 26, 2026open-market sale29,267—$2M (2)0 of 2
Pogalz Bradley J.Chief Financial OfficerAug 27, 2026option exercise3,434—$52K (1)0 of 1
Rautio Trudy A.DirectorOct 2, 2026award28,541———
Smiley Jacinth CDirectorOct 2, 2026award8,540———
Hilger Christopher M.DirectorOct 2, 2026award16,692———
Oberton Willard DDirectorJul 7, 2025award29,834———
Lewis Richard BrentPresidentSep 24, 2026award50,966———
Becker Amy CChief Legal OfficerSep 24, 2026award53,447———
Scalf Thomas RPresidentMar 17, 2025open-market sale28,334———
Driesen Bart C.PresidentSep 24, 2026award14,577———
Shine Daniel PDirectorJan 2, 2026award1,000———
Olson Richard MDirectorJan 2, 2026award6,090———
Milroy Douglas A.DirectorJan 2, 2026award2,473———
Cruz PilarDirectorJan 2, 2026award16,747———
Dahlgren Andrew CPresidentAug 28, 2025option exercise10,504———
Cebulla Andrew J.Corporate ControllerJun 9, 2025tax withholding1,638———

Questions

Are Donaldson Company, Inc. insiders buying or selling?

Over the twelve months to November 9, 2026, 5 insiders at Donaldson Company, Inc. sold $9M of stock in the open market, all by officers and directors, and no insider bought. Net, insiders sold $9M. Only open-market purchases and sales are counted.

Who sold the most Donaldson Company, Inc. stock in the last year?

Carpenter Tod E. (Chairman, President and CEO, Director) sold $3M in 2 open-market sales over the twelve months to November 9, 2026.

Do Donaldson Company, Inc. executives sell under 10b5-1 plans?

0 of the 11 open-market sales in the last twelve months (0%) were reported as made under a Rule 10b5-1 trading plan, set up in advance. A sale under a plan is still counted as a sale.

What counts as insider buying here?

Only open-market purchases (Form 4 code P) and sales (code S) by officers, directors and 10% owners. Stock awards, option exercises, shares withheld for tax and gifts are listed in the table but never counted as buying or selling.

More on Donaldson Company, Inc.

From Form 4, 4/A and 5 filings with the SEC. A record of insider transactions, not a recommendation.