Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Donaldson Co Inc (DCI) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Donaldson Co Inc. Table 2 shows the detailed insider transactions. This company's CIK number is 29644.
Total stock buying since 2015: $271,362.
Total stock sales since 2015: $74,564,762.
Total stock option exercises since 2015: $52,206,707.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 334,100 | $24,982,026 | 284,100 | $8,825,306 |
| 2024 | 0 | $0 | 317,102 | $23,086,220 | 391,100 | $16,591,283 |
| 2023 | 3,186 | $199,953 | 101,037 | $6,386,011 | 96,400 | $3,538,688 |
| 2022 | 0 | $0 | 45,324 | $2,571,590 | 120,388 | $4,507,831 |
| 2021 | 0 | $0 | 81,640 | $5,024,835 | 111,600 | $3,863,725 |
| 2020 | 0 | $0 | 62,638 | $3,088,929 | 88,600 | $2,552,790 |
| 2019 | 560 | $27,468 | 32,800 | $1,596,592 | 43,200 | $926,208 |
| 2018 | 550 | $24,915 | 46,409 | $2,340,802 | 109,300 | $2,234,669 |
| 2017 | 0 | $0 | 45,295 | $2,084,806 | 81,100 | $1,798,153 |
| 2016 | 600 | $19,026 | 38,597 | $1,387,373 | 195,291 | $3,681,920 |
| 2015 | 0 | $0 | 61,793 | $2,015,578 | 219,822 | $3,686,134 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-09 | 0 | $0 | 13,500 | $1,066,905 | 13,500 | $378,000 |
| 2025-08 | 0 | $0 | 153,900 | $12,410,548 | 153,900 | $4,543,505 |
| 2025-07 | 0 | $0 | 60,000 | $4,293,365 | 0 | $0 |
| 2025-06 | 0 | $0 | 7,000 | $486,570 | 17,000 | $557,010 |
| 2025-04 | 0 | $0 | 18,700 | $1,159,774 | 18,700 | $531,641 |
| 2025-03 | 0 | $0 | 35,500 | $2,450,310 | 35,500 | $1,416,530 |
| 2025-02 | 0 | $0 | 29,500 | $2,032,255 | 29,500 | $826,000 |
| 2025-01 | 0 | $0 | 16,000 | $1,082,299 | 16,000 | $572,620 |
| 2024-10 | 0 | $0 | 9,495 | $695,951 | 2,700 | $76,761 |
| 2024-09 | 0 | $0 | 167,100 | $12,250,841 | 179,100 | $8,208,620 |
| 2024-07 | 0 | $0 | 37,600 | $2,668,472 | 37,600 | $1,708,168 |
| 2024-06 | 0 | $0 | 0 | $0 | 3,000 | $116,340 |
| 2024-03 | 0 | $0 | 93,407 | $6,829,161 | 85,200 | $3,101,909 |
| 2024-02 | 0 | $0 | 4,500 | $316,845 | 4,500 | $173,115 |
| 2024-01 | 0 | $0 | 5,000 | $324,950 | 79,000 | $3,206,370 |
| 2023-12 | 0 | $0 | 14,159 | $879,200 | 4,000 | $168,200 |
| 2023-11 | 0 | $0 | 11,378 | $692,806 | 11,400 | $490,998 |
| 2023-10 | 0 | $0 | 0 | $0 | 2,500 | $105,125 |
| 2023-09 | 0 | $0 | 0 | $0 | 3,000 | $126,149 |
| 2023-08 | 0 | $0 | 29,300 | $1,873,405 | 29,300 | $1,102,142 |
| 2023-07 | 0 | $0 | 24,000 | $1,498,560 | 24,000 | $672,000 |
| 2023-04 | 3,186 | $199,953 | 0 | $0 | 0 | $0 |
| 2023-03 | 0 | $0 | 19,200 | $1,265,040 | 19,200 | $744,864 |
| 2023-01 | 0 | $0 | 3,000 | $177,000 | 3,000 | $129,210 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-09-03 | Briseno Guillermo (President) | Sale | 13,500 | 79.03 | 1,066,905 |
| 2025-09-03 | Briseno Guillermo (President) | Option Ex | 13,500 | 28.00 | 378,000 |
| 2025-08-28 | Dahlgren Andrew C (President) | Sale | 3,000 | 81.96 | 245,879 |
| 2025-08-28 | Dahlgren Andrew C (President) | Option Ex | 3,000 | 28.00 | 84,000 |
| 2025-08-28 | Becker Amy C (Chief Legal Officer) | Sale | 18,500 | 81.71 | 1,511,635 |
| 2025-08-28 | Becker Amy C (Chief Legal Officer) | Option Ex | 18,500 | 28.00 | 518,000 |
| 2025-08-28 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 100,500 | 80.62 | 8,102,310 |
| 2025-08-28 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 100,500 | 28.00 | 2,814,000 |
| 2025-08-28 | Rautio Trudy A. | Sale | 31,900 | 79.96 | 2,550,724 |
| 2025-08-28 | Rautio Trudy A. | Option Ex | 31,900 | 35.34 | 1,127,505 |
| 2025-07-10 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 45,808 | 71.71 | 3,284,891 |
| 2025-07-09 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 2,159 | 71.00 | 153,289 |
| 2025-07-08 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 12,033 | 71.07 | 855,185 |
| 2025-06-04 | Lewis Richard Brent (President) | Option Ex | 10,000 | 35.80 | 358,000 |
| 2025-06-04 | Oberton Willard D | Sale | 7,000 | 69.51 | 486,570 |
| 2025-06-04 | Oberton Willard D | Option Ex | 7,000 | 28.43 | 199,010 |
| 2025-04-10 | Owens James | Sale | 18,700 | 62.02 | 1,159,774 |
| 2025-04-10 | Owens James | Option Ex | 18,700 | 28.43 | 531,641 |
| 2025-03-17 | Scalf Thomas R (President) | Sale | 28,500 | 69.22 | 1,972,770 |
| 2025-03-17 | Scalf Thomas R (President) | Option Ex | 28,500 | 42.72 | 1,217,520 |
| 2025-03-05 | Oberton Willard D | Sale | 7,000 | 68.22 | 477,540 |
| 2025-03-05 | Oberton Willard D | Option Ex | 7,000 | 28.43 | 199,010 |
| 2025-02-28 | Scalf Thomas R (President) | Sale | 29,500 | 68.89 | 2,032,255 |
| 2025-02-28 | Scalf Thomas R (President) | Option Ex | 29,500 | 28.00 | 826,000 |
| 2025-01-02 | Rautio Trudy A. | Sale | 14,000 | 67.60 | 946,399 |
| 2025-01-02 | Rautio Trudy A. | Option Ex | 14,000 | 36.84 | 515,760 |
| 2025-01-02 | Oberton Willard D | Sale | 2,000 | 67.95 | 135,900 |
| 2025-01-02 | Oberton Willard D | Option Ex | 2,000 | 28.43 | 56,860 |
| 2024-10-09 | Scalf Thomas R (President) | Sale | 2,500 | 73.16 | 182,900 |
| 2024-10-07 | Scalf Thomas R (President) | Sale | 4,295 | 73.33 | 314,952 |
| 2024-10-04 | Oberton Willard D | Sale | 2,700 | 73.37 | 198,099 |
| 2024-10-04 | Oberton Willard D | Option Ex | 2,700 | 28.43 | 76,761 |
| 2024-09-27 | Robinson Scott J. (Chief Financial Officer) | Sale | 83,600 | 74.04 | 6,189,744 |
| 2024-09-27 | Robinson Scott J. (Chief Financial Officer) | Option Ex | 83,600 | 55.40 | 4,631,022 |
| 2024-09-23 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 30,919 | 72.69 | 2,247,502 |
| 2024-09-23 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 30,919 | 36.57 | 1,130,707 |
| 2024-09-20 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 24,081 | 72.52 | 1,746,354 |
| 2024-09-20 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 24,081 | 36.57 | 880,642 |
| 2024-09-19 | Becker Amy C (Chief Legal Officer) | Sale | 14,500 | 72.89 | 1,056,905 |
| 2024-09-19 | Becker Amy C (Chief Legal Officer) | Option Ex | 14,500 | 38.78 | 562,310 |
| 2024-09-18 | Owens James | Sale | 5,210 | 71.74 | 373,765 |
| 2024-09-18 | Owens James | Option Ex | 5,210 | 38.47 | 200,428 |
| 2024-09-17 | Owens James | Sale | 8,790 | 72.42 | 636,571 |
| 2024-09-17 | Owens James | Option Ex | 8,790 | 38.47 | 338,151 |
| 2024-09-03 | Briseno Guillermo (President) | Option Ex | 12,000 | 38.78 | 465,360 |
| 2024-07-02 | Robinson Scott J. (Chief Financial Officer) | Sale | 37,600 | 70.97 | 2,668,472 |
| 2024-07-02 | Robinson Scott J. (Chief Financial Officer) | Option Ex | 37,600 | 45.43 | 1,708,168 |
| 2024-06-14 | Lewis Richard Brent (President) | Option Ex | 3,000 | 38.78 | 116,340 |
| 2024-03-20 | Oberton Willard D | Sale | 4,500 | 73.54 | 330,930 |
| 2024-03-20 | Oberton Willard D | Option Ex | 4,500 | 38.47 | 173,115 |
| 2024-03-15 | Kramer Sheila G. (Chief Human Resources Officer) | Sale | 45,500 | 73.52 | 3,345,160 |
| 2024-03-15 | Kramer Sheila G. (Chief Human Resources Officer) | Option Ex | 45,500 | 38.72 | 1,761,623 |
| 2024-03-07 | Rajendra Ajita G | Sale | 18,700 | 73.51 | 1,374,637 |
| 2024-03-07 | Rajendra Ajita G | Option Ex | 18,700 | 28.43 | 531,641 |
| 2024-03-04 | Dahlgren Andrew C (President) | Option Ex | 2,500 | 38.78 | 96,950 |
| 2024-03-04 | Scalf Thomas R (President) | Sale | 3,027 | 73.09 | 221,243 |
| 2024-03-01 | Scalf Thomas R (President) | Sale | 7,680 | 71.09 | 545,971 |
| 2024-03-01 | Rajendra Ajita G | Sale | 14,000 | 72.23 | 1,011,220 |
| 2024-03-01 | Rajendra Ajita G | Option Ex | 14,000 | 38.47 | 538,580 |
| 2024-02-29 | Oberton Willard D | Sale | 4,500 | 70.41 | 316,845 |
| 2024-02-29 | Oberton Willard D | Option Ex | 4,500 | 38.47 | 173,115 |
| 2024-01-03 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 74,000 | 40.73 | 3,014,020 |
| 2024-01-02 | Oberton Willard D | Sale | 5,000 | 64.99 | 324,950 |
| 2024-01-02 | Oberton Willard D | Option Ex | 5,000 | 38.47 | 192,350 |
| 2023-12-11 | Rajendra Ajita G | Sale | 11,400 | 62.24 | 709,536 |
| 2023-12-06 | Briseno Guillermo (President) | Sale | 2,737 | 61.50 | 168,325 |
| 2023-12-06 | Briseno Guillermo (President) | Option Ex | 4,000 | 42.05 | 168,200 |
| 2023-12-01 | Owens James | Sale | 22 | 60.89 | 1,339 |
| 2023-11-30 | Owens James | Sale | 11,378 | 60.89 | 692,806 |
| 2023-11-30 | Owens James | Option Ex | 11,400 | 43.07 | 490,998 |
| 2023-10-10 | Dahlgren Andrew C (President) | Option Ex | 2,500 | 42.05 | 105,125 |
| 2023-09-05 | Lewis Richard Brent (President) | Option Ex | 3,000 | 42.05 | 126,149 |
| 2023-08-30 | Becker Amy C (Chief Legal Officer) | Sale | 3,000 | 63.84 | 191,520 |
| 2023-08-30 | Becker Amy C (Chief Legal Officer) | Option Ex | 3,000 | 42.05 | 126,149 |
| 2023-08-30 | Milroy Douglas A. | Sale | 26,300 | 63.95 | 1,681,885 |
| 2023-08-30 | Milroy Douglas A. | Option Ex | 26,300 | 37.11 | 975,993 |
| 2023-07-03 | Robinson Scott J. (Chief Financial Officer) | Sale | 24,000 | 62.44 | 1,498,560 |
| 2023-07-03 | Robinson Scott J. (Chief Financial Officer) | Option Ex | 24,000 | 28.00 | 672,000 |
| 2023-04-11 | Hilger Christopher M. | Buy | 3,186 | 62.76 | 199,953 |
| 2023-03-02 | Owens James | Sale | 10,800 | 66.08 | 713,664 |
| 2023-03-02 | Owens James | Option Ex | 10,800 | 35.47 | 383,076 |
| 2023-03-02 | Oberton Willard D | Sale | 8,400 | 65.64 | 551,376 |
| 2023-03-02 | Oberton Willard D | Option Ex | 8,400 | 43.07 | 361,788 |
| 2023-01-04 | Oberton Willard D | Sale | 3,000 | 59.00 | 177,000 |
| 2023-01-04 | Oberton Willard D | Option Ex | 3,000 | 43.07 | 129,210 |
| 2022-12-02 | Scalf Thomas R (President) | Sale | 10,500 | 60.95 | 639,975 |
| 2022-12-02 | Scalf Thomas R (President) | Option Ex | 36,500 | 40.42 | 1,475,512 |
| 2022-12-02 | Rajendra Ajita G | Sale | 6,282 | 61.07 | 383,641 |
| 2022-12-02 | Rajendra Ajita G | Option Ex | 6,282 | 34.11 | 214,279 |
| 2022-12-01 | Dahlgren Andrew C (President) | Sale | 2,436 | 60.85 | 148,230 |
| 2022-12-01 | Dahlgren Andrew C (President) | Option Ex | 3,500 | 33.58 | 117,530 |
| 2022-12-01 | Becker Amy C (Chief Legal Officer) | Sale | 3,500 | 60.72 | 212,520 |
| 2022-12-01 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 48,000 | 37.83 | 1,815,600 |
| 2022-12-01 | Rajendra Ajita G | Sale | 1,206 | 61.00 | 73,566 |
| 2022-12-01 | Rajendra Ajita G | Option Ex | 1,206 | 34.11 | 41,136 |
| 2022-10-13 | Scalf Thomas R (Senior Vice President) | Sale | 7,000 | 51.67 | 361,690 |
| 2022-10-13 | Scalf Thomas R (Senior Vice President) | Option Ex | 7,000 | 33.58 | 235,060 |
| 2022-09-09 | Lewis Richard Brent (Senior Vice President) | Option Ex | 3,500 | 33.58 | 117,530 |
| 2022-09-01 | Oberton Willard D | Sale | 7,200 | 51.35 | 369,720 |
| 2022-09-01 | Oberton Willard D | Option Ex | 7,200 | 34.11 | 245,592 |
| 2022-06-02 | Oberton Willard D | Sale | 7,200 | 53.09 | 382,248 |
| 2022-06-02 | Oberton Willard D | Option Ex | 7,200 | 34.11 | 245,592 |
| 2021-12-29 | Keller Peter Joseph (Corporate Controller) | Sale | 2,000 | 59.01 | 118,020 |
| 2021-12-29 | Keller Peter Joseph (Corporate Controller) | Option Ex | 2,000 | 48.84 | 97,670 |
| 2021-12-28 | Rajendra Ajita G | Sale | 8,425 | 58.59 | 493,620 |
| 2021-12-28 | Rajendra Ajita G | Option Ex | 14,400 | 34.21 | 492,624 |
| 2021-12-17 | Scalf Thomas R (Senior Vice President) | Sale | 15 | 58.12 | 871 |
| 2021-12-03 | Becker Amy C (Vice President) | Option Ex | 6,000 | 34.88 | 209,280 |
| 2021-12-03 | Scalf Thomas R (Senior Vice President) | Sale | 4,000 | 55.24 | 220,960 |
| 2021-12-03 | Scalf Thomas R (Senior Vice President) | Option Ex | 4,000 | 34.88 | 139,520 |
| 2021-07-14 | Vermeersch Wim (Vice President) | Option Ex | 14,000 | 33.58 | 470,120 |
| 2021-06-22 | Wiehoff John | Sale | 14,400 | 61.94 | 891,936 |
| 2021-06-22 | Wiehoff John | Option Ex | 14,400 | 34.21 | 492,624 |
| 2021-06-15 | Lewis Richard Brent (Senior Vice President) | Option Ex | 4,000 | 34.88 | 139,520 |
| 2021-06-04 | Oberton Willard D | Sale | 10,000 | 64.20 | 642,000 |
| 2021-06-04 | Oberton Willard D | Option Ex | 10,000 | 34.21 | 342,100 |
| 2021-06-03 | Hoffman Michael J | Sale | 14,400 | 63.71 | 917,424 |
| 2021-06-03 | Hoffman Michael J | Option Ex | 14,400 | 34.21 | 492,624 |
| 2021-03-15 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 21,398 | 61.45 | 1,314,907 |
| 2021-03-15 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 21,398 | 34.88 | 746,362 |
| 2021-03-12 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 500 | 61.51 | 30,755 |
| 2021-03-12 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 500 | 34.88 | 17,440 |
| 2021-03-11 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 2,102 | 61.59 | 129,462 |
| 2021-03-11 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 2,102 | 34.88 | 73,317 |
| 2021-03-01 | Oberton Willard D | Sale | 4,400 | 60.20 | 264,880 |
| 2021-03-01 | Oberton Willard D | Option Ex | 4,400 | 34.21 | 150,524 |
| 2020-12-04 | Becker Amy C (Vice President) | Option Ex | 6,000 | 29.07 | 174,420 |
| 2020-12-04 | Scalf Thomas R (Senior Vice President) | Sale | 1,000 | 54.41 | 54,410 |
| 2020-12-04 | Scalf Thomas R (Senior Vice President) | Option Ex | 1,000 | 29.07 | 29,070 |
| 2020-10-09 | Hoffman Michael J | Option Ex | 14,400 | 29.50 | 424,800 |
| 2020-10-06 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 15,000 | 29.07 | 436,050 |
| 2020-10-02 | Rajendra Ajita G | Sale | 8,861 | 46.44 | 411,504 |
| 2020-10-02 | Rajendra Ajita G | Option Ex | 14,400 | 29.50 | 424,800 |
| 2020-06-08 | Becker Amy C (Vice President) | Sale | 2,627 | 51.64 | 135,658 |
| 2020-06-08 | Scalf Thomas R (Senior Vice President) | Sale | 1,250 | 50.97 | 63,712 |
| 2020-06-08 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 10,000 | 51.36 | 513,600 |
| 2020-06-08 | Wiehoff John (Director) | Sale | 14,400 | 51.03 | 734,832 |
| 2020-06-08 | Wiehoff John (Director) | Option Ex | 14,400 | 29.50 | 424,800 |
| 2020-06-08 | Oberton Willard D (Director) | Sale | 14,400 | 51.04 | 734,976 |
| 2020-06-08 | Oberton Willard D (Director) | Option Ex | 14,400 | 29.50 | 424,800 |
| 2020-06-04 | Lewis Richard Brent (Senior Vice President) | Option Ex | 3,000 | 29.07 | 87,210 |
| 2020-03-09 | Spethmann Jeffrey E (Senior Vice President) | Sale | 3,600 | 46.02 | 165,672 |
| 2020-03-09 | Robinson Scott J. (Senior Vice President) | Sale | 4,000 | 40.56 | 162,240 |
| 2020-03-09 | Scalf Thomas R (Senior Vice President) | Sale | 2,500 | 44.93 | 112,325 |
| 2020-01-02 | Becker Amy C (Vice President) | Option Ex | 6,000 | 21.14 | 126,840 |
| 2019-12-06 | Hoffman Michael J (Director) | Option Ex | 14,400 | 21.44 | 308,736 |
| 2019-06-06 | Wiehoff John (Director) | Sale | 14,400 | 47.88 | 689,472 |
| 2019-06-06 | Wiehoff John (Director) | Option Ex | 14,400 | 21.44 | 308,736 |
| 2019-03-29 | Carpenter Tod E. (Chairman, President and CEO) | Sale | 4,000 | 50.02 | 200,080 |
| 2019-03-28 | Oberton Willard D (Director) | Sale | 14,400 | 49.10 | 707,040 |
| 2019-03-28 | Oberton Willard D (Director) | Option Ex | 14,400 | 21.44 | 308,736 |
| 2019-03-13 | Milroy Douglas A. (Director) | Buy | 560 | 49.05 | 27,468 |
| 2018-09-17 | Vermeersch Wim (Vice President) | Option Ex | 18,500 | 31.98 | 591,537 |
| 2018-09-17 | Carpenter Tod E. (Chairman, President and CEO) | Option Ex | 35,600 | 19.24 | 684,944 |
| 2018-09-14 | Lewis Richard Brent (Vice President) | Sale | 3,209 | 58.99 | 189,298 |
| 2018-09-14 | Lewis Richard Brent (Vice President) | Option Ex | 6,000 | 18.50 | 111,030 |
| 2018-09-13 | Becker Amy C (Vice President) | Option Ex | 3,000 | 15.87 | 47,610 |
| 2018-09-12 | Vermeersch Wim (Vice President) | Option Ex | 3,000 | 21.14 | 63,420 |
| 2018-09-12 | Oberton Willard D (Director) | Sale | 14,400 | 56.85 | 818,640 |
| 2018-09-12 | Oberton Willard D (Director) | Option Ex | 14,400 | 17.04 | 245,376 |
| 2018-07-05 | Hoffman Michael J (Director) | Sale | 14,400 | 44.70 | 643,680 |
| 2018-07-05 | Hoffman Michael J (Director) | Option Ex | 14,400 | 17.04 | 245,376 |
| 2018-06-14 | Wiehoff John (Director) | Sale | 14,400 | 47.86 | 689,184 |
| 2018-06-14 | Wiehoff John (Director) | Option Ex | 14,400 | 17.04 | 245,376 |
| 2018-03-13 | Milroy Douglas A. (Director) | Buy | 550 | 45.30 | 24,915 |
| 2017-12-14 | Osland Melissa A. (Controller) | Sale | 1,453 | 48.26 | 70,121 |
| 2017-12-14 | Osland Melissa A. (Controller) | Option Ex | 2,500 | 17.54 | 43,842 |
| 2017-09-20 | Carpenter Tod E. (President/CEO) | Option Ex | 11,000 | 23.00 | 253,000 |
| 2017-09-11 | Noddle Jeffrey (Director) | Option Ex | 14,400 | 22.77 | 327,888 |
| 2017-06-20 | Wiehoff John (Director) | Sale | 14,400 | 46.33 | 667,152 |
| 2017-06-20 | Wiehoff John (Director) | Option Ex | 14,400 | 22.77 | 327,888 |
| 2017-06-19 | Hoffman Michael J (Director) | Sale | 14,400 | 46.84 | 674,496 |
| 2017-06-19 | Hoffman Michael J (Director) | Option Ex | 14,400 | 22.77 | 327,888 |
| 2017-06-16 | Becker Amy C (Vice President) | Option Ex | 6,000 | 19.83 | 118,979 |
| 2017-06-15 | Vermeersch Wim (Vice President) | Option Ex | 3,000 | 17.85 | 53,550 |
| 2017-03-07 | Oberton Willard D (Director) | Sale | 14,400 | 44.86 | 645,984 |
| 2017-03-07 | Oberton Willard D (Director) | Option Ex | 14,400 | 22.77 | 327,888 |
| 2017-01-03 | Osland Melissa A. (Controller) | Sale | 642 | 42.14 | 27,053 |
| 2017-01-03 | Osland Melissa A. (Controller) | Option Ex | 1,000 | 17.23 | 17,230 |
| 2016-09-23 | Noddle Jeffrey (Director) | Option Ex | 14,400 | 17.50 | 252,000 |
| 2016-09-14 | Wiehoff John (Director) | Sale | 14,400 | 36.32 | 523,008 |
| 2016-09-14 | Wiehoff John (Director) | Option Ex | 14,400 | 17.50 | 252,000 |
| 2016-09-12 | Becker Amy C (Vice President) | Option Ex | 3,000 | 17.23 | 51,690 |
| 2016-06-14 | Carpenter Tod E. (President/CEO) | Option Ex | 11,000 | 16.82 | 184,965 |
| 2016-06-07 | Hoffman Michael J (Director) | Sale | 14,400 | 36.52 | 525,888 |
| 2016-06-07 | Hoffman Michael J (Director) | Option Ex | 14,400 | 17.50 | 252,000 |
| 2016-06-06 | Perushek Mary Lynne (Vice President) | Option Ex | 16,691 | 33.49 | 559,065 |
| 2016-06-06 | Oberton Willard D (Director) | Sale | 7,400 | 36.55 | 270,470 |
| 2016-06-06 | Oberton Willard D (Director) | Option Ex | 7,400 | 17.50 | 129,500 |
| 2016-03-24 | Milroy Douglas A. (Director) | Buy | 600 | 31.71 | 19,026 |
| 2016-03-22 | Cook William M (Chairman) | Option Ex | 50,000 | 17.55 | 877,500 |
| 2016-03-07 | Cook William M (Chairman) | Option Ex | 59,000 | 17.55 | 1,035,450 |
| 2016-03-03 | Perushek Mary Lynne (Vice President) | Sale | 1,006 | 30.56 | 30,743 |
| 2016-01-06 | Perushek Mary Lynne (Vice President) | Sale | 1,391 | 26.79 | 37,264 |
| 2016-01-05 | Shaw James F (Vice President) | Option Ex | 5,000 | 17.55 | 87,750 |
| 2015-12-18 | Vermeersch Wim (Vice President) | Option Ex | 1,500 | 16.50 | 24,750 |
| 2015-12-11 | Osland Melissa A. (Controller) | Sale | 743 | 27.21 | 20,217 |
| 2015-12-11 | Osland Melissa A. (Controller) | Option Ex | 1,000 | 16.50 | 16,500 |
| 2015-12-10 | Becker Amy C (Vice President) | Option Ex | 2,500 | 16.50 | 41,250 |
| 2015-12-08 | Carpenter Tod E. (President/CEO) | Option Ex | 5,000 | 16.50 | 82,500 |
| 2015-12-03 | Ward Jay L (Senior Vice President) | Sale | 974 | 30.00 | 29,220 |
| 2015-12-02 | Ward Jay L (Senior Vice President) | Sale | 200 | 30.41 | 6,082 |
| 2015-12-02 | Ward Jay L (Senior Vice President) | Option Ex | 14,422 | 19.41 | 279,931 |
| 2015-12-01 | Shaw James F (Vice President) | Option Ex | 5,000 | 16.40 | 82,000 |
| 2015-11-30 | Miller Paul David (Director) | Sale | 14,400 | 31.25 | 450,000 |
| 2015-11-30 | Miller Paul David (Director) | Option Ex | 14,400 | 16.60 | 239,040 |
| 2015-11-30 | Hoffman Michael J (Director) | Sale | 14,400 | 31.64 | 455,616 |
| 2015-11-30 | Hoffman Michael J (Director) | Option Ex | 14,400 | 16.60 | 239,040 |
| 2015-09-18 | Wiehoff John (Director) | Sale | 14,400 | 30.04 | 432,576 |
| 2015-09-18 | Wiehoff John (Director) | Option Ex | 14,400 | 16.60 | 239,040 |
| 2015-09-18 | Noddle Jeffrey (Director) | Option Ex | 14,400 | 16.60 | 239,040 |
| 2015-03-27 | Scalf Thomas R (Senior Vice President) | Sale | 700 | 37.09 | 25,963 |
| 2015-03-20 | Perushek Mary Lynne (Vice President) | Sale | 2,000 | 38.31 | 76,620 |
| 2015-03-18 | Cook William M (Chairman, President and CEO) | Option Ex | 106,000 | 16.40 | 1,738,399 |
| 2015-01-06 | Joppa Sandra N (Vice President) | Sale | 6,976 | 36.91 | 257,484 |
| 2015-01-06 | Joppa Sandra N (Vice President) | Option Ex | 19,800 | 17.28 | 342,144 |
| 2015-01-05 | Oberton Willard D (Director) | Sale | 7,000 | 37.40 | 261,800 |
| 2015-01-05 | Oberton Willard D (Director) | Option Ex | 7,000 | 17.50 | 122,500 |
Insider trading activities including stock purchases, stock sales, and option exercises of DCI listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Donaldson Co Inc (symbol DCI, CIK number 29644) see the Securities and Exchange Commission (SEC) website.