DCI Insider Trading
DONALDSON Co INC | Industrial & Commercial Fans & Blowers & Air Purifing Equip
Comprehensive Trading Performance Summary
The investment history of corporate insiders at DONALDSON Co INC provides a unique lens into the internal conviction of the company's leadership. By analyzing SEC Form 4 filings, investors can track how directors and officers are allocating their own capital. High-conviction buying often signals that management believes the current market price significantly undervalues future growth prospects, while strategic selling might occur for personal liquidity or portfolio diversification. Monitoring these shifts in ownership is essential for understanding the alignment between management and shareholders in the Industrial & Commercial Fans & Blowers & Air Purifing Equip sector.
Transactions on Chart
Open Full Chart| Filing Date | Trade Date | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|
| 2010-04-07 19:28 | 2010-04-05 | Perushek Mary Lynne | Officer - Vice President | OPT+S | $46.46 | 7,428 | $345,092 | 5,472 | 0.0% |
| 2010-04-06 23:48 | 2010-04-05 | COOK WILLIAM M | Director, Officer - Chairman, President and CEO | SELL | $46.42 | 13,500 | $626,670 | 419,461 | -3.1% |
| 2010-03-31 22:58 | 2010-03-30 | LINNELL NORMAN C | Officer - Vice President | OPT+S | $46.03 | 21,534 | $991,210 | 70,981 | 0.0% |
| 2010-03-26 22:52 | 2010-03-25 | VERHAGE THOMAS R | Officer - Vice President | SELL | $45.85 | 16,500 | $756,454 | 39,448 | -29.5% |
| 2010-03-13 00:43 | 2010-03-12 | VERHAGE THOMAS R | Officer - Vice President | SELL | $44.46 | 5,000 | $222,300 | 55,898 | -8.2% |
| 2009-12-29 22:01 | 2009-12-24 | COOK WILLIAM M | Director, Officer - Chairman, President and CEO | SELL | $43.42 | 8,150 | $353,873 | 420,243 | -1.9% |
| 2009-11-25 17:32 | 2009-11-23 | Carpenter Tod E. | Officer - Vice President | OPT+S | $43.94 | 3,537 | $155,416 | 18,574 | 0.0% |
| 2009-11-25 17:34 | 2009-11-23 | Timm David W | Officer - Vice President | OPT+S | $43.97 | 3,025 | $133,009 | 27,317 | 0.0% |
| 2009-11-25 17:34 | 2009-11-23 | Ward Jay L | Officer - Vice President | OPT+S | $44.78 | 3,978 | $178,135 | 16,773 | 0.0% |
| 2009-10-08 20:17 | 2009-10-07 | DOLAN JANET M | Director | SELL | $33.26 | 7,200 | $239,472 | 43,904 | -14.1% |
| 2009-03-10 23:05 | 2009-03-09 | Wilfong Debra L | Officer - Vice President | BUY | $22.05 | 650 | $14,333 | 4,300 | +17.8% |
| 2009-03-04 18:17 | 2009-03-02 | Wilfong Debra L | Officer - Vice President | BUY | $23.18 | 650 | $15,067 | 3,650 | +21.7% |
| 2008-09-16 00:41 | 2008-09-12 | Ward Jay L | Officer - Vice President | BUY | $41.14 | 100 | $4,114 | 11,806 | +0.9% |
| 2008-06-23 19:34 | 2008-06-20 | Timm David W | Officer - Vice President | OPT+S | $49.68 | 6,000 | $298,107 | 24,143 | 0.0% |
| 2008-06-11 23:28 | 2008-06-10 | SCHWAB LOWELL F | Officer - Senior Vice President | SELL | $49.68 | 26,697 | $1,326,195 | 182,099 | -12.8% |
| 2008-06-05 20:47 | 2008-06-04 | EUGSTER JACK W | Director | SELL | $51.54 | 1,126 | $58,034 | 51,670 | -2.1% |
| 2008-06-04 18:37 | 2008-06-03 | EUGSTER JACK W | Director | SELL | $51.43 | 1,902 | $97,819 | 52,796 | -3.5% |
| 2008-06-03 16:09 | 2008-06-02 | Vann William I | Officer - Vice President | SELL | $51.13 | 10,386 | $531,026 | 22,111 | -32.0% |
| 2007-12-01 00:29 | 2007-11-29 | EUGSTER JACK W | Director | OPT+S | $45.78 | 5,452 | $249,593 | 50,407 | 0.0% |
| 2007-11-30 22:51 | 2007-11-29 | Ward Jay L | Officer - Vice President | OPT+S | $45.54 | 476 | $21,675 | 542 | 0.0% |
| 2007-10-16 18:48 | 2007-10-12 | LINNELL NORMAN C | Officer - Vice President | SELL | $41.22 | 17,000 | $700,699 | 56,783 | -23.0% |
| 2007-09-28 20:02 | 2007-09-27 | Timm David W | Officer - Vice President | OPT+S | $41.77 | 2,555 | $106,729 | 24,062 | 0.0% |
| 2007-09-28 00:04 | 2007-09-26 | DOLAN JANET M | Director | OPT+S | $41.73 | 8,000 | $333,840 | 35,012 | 0.0% |
| 2006-10-27 19:38 | 2006-10-17 | Touw Geert Henk | Officer - Senior Vice President | SELL | $37.79 | 30,619 | $1,157,092 | 27,431 | -52.7% |
| 2006-10-02 18:53 | 2006-09-29 | EUGSTER JACK W | Director | OPT+S | $37.18 | 4,000 | $148,732 | 42,724 | 0.0% |
| 2006-09-28 18:17 | 2006-09-26 | EUGSTER JACK W | Director | OPT+S | $36.94 | 4,000 | $147,760 | 42,724 | 0.0% |
| 2006-09-18 23:52 | 2006-09-14 | OBERTON WILLARD D | Director | BUY | $37.82 | 1,000 | $37,820 | 1,000 | +100.0% |
| 2006-09-14 20:33 | 2006-09-13 | EUGSTER JACK W | Director | OPT+S | $37.58 | 4,000 | $150,320 | 42,724 | 0.0% |
| 2006-09-14 16:52 | 2006-09-12 | Touw Geert Henk | Officer - Senior Vice President | SELL | $37.30 | 23,187 | $864,875 | 33,693 | -40.8% |
| 2006-06-30 23:05 | 2006-06-29 | EUGSTER JACK W | Director | OPT+S | $33.60 | 4,000 | $134,399 | 42,673 | 0.0% |
| 2006-06-19 22:14 | 2006-06-16 | Joppa Sandra N | Officer - Vice President | BUY | $31.93 | 1,520 | $48,534 | 1,520 | +100.0% |
| 2006-01-25 21:42 | 2006-01-23 | GIERTZ JAMES R | Officer - Senior Vice President | SELL | $32.54 | 16,479 | $536,227 | 225,136 | -6.8% |
| 2005-06-14 22:39 | 2005-06-10 | GIERTZ JAMES R | Officer - Senior VP | SELL | $31.58 | 19,048 | $601,623 | 223,020 | -7.9% |
| 2005-04-08 23:15 | 2005-04-08 | SCHWAB LOWELL F | Officer - Senior VP | SELL | $31.51 | 20,897 | $658,464 | 148,110 | -12.4% |
| 2004-09-21 17:33 | 2004-09-20 | SCHWAB LOWELL F | Officer - Senior VP | SELL | $29.01 | 17,432 | $505,748 | 141,967 | -10.9% |
| 2004-09-20 22:54 | 2004-09-20 | PRIADKA NICKOLAS | Officer - Senior VP | SELL | $28.90 | 10,104 | $292,006 | 347,316 | -2.8% |
| 2004-09-20 22:53 | 2004-09-17 | PRIADKA NICKOLAS | Officer - Senior VP | SELL | $29.07 | 10,000 | $290,700 | 357,420 | -2.7% |
| 2004-09-09 22:47 | 2004-09-09 | VAN DYKE WILLIAM G | Director, Officer - Chairman | SELL | $29.25 | 20,064 | $586,872 | 826,898 | -2.4% |
| 2004-06-04 01:12 | 2004-06-02 | VAN DYKE WILLIAM G | Director, Officer - Chairman, President and CEO | SELL | $26.90 | 20,000 | $538,000 | 844,463 | -2.3% |
| 2004-06-02 19:52 | 2004-06-01 | VAN DYKE WILLIAM G | Director, Officer - Chairman, President and CEO | SELL | $26.71 | 10,000 | $267,054 | 864,463 | -1.1% |
| 2004-01-29 23:55 | 2004-01-27 | SCHWAB LOWELL F | Officer - Senior VP | OPT+S | $55.92 | 10,728 | $599,888 | 70,572 | 0.0% |
| 2003-12-19 00:26 | 2003-12-18 | BASTIAENS F GUILLAUME | Director | SELL | $59.19 | 8,000 | $473,520 | 7,381 | -52.0% |
How to Interpret $DCI Trades
Not every insider transaction in DONALDSON Co INC is a signal for immediate action. Professional investors look for "cluster buying"—when multiple executives simultaneously purchase $DCI shares on the open market. It is crucial to distinguish between scheduled sales (under Rule 10b5-1) and voluntary increases in ownership, which demonstrate management’s true conviction that the stock is undervalued.
Data Source & Accuracy for DCI
Insider activity data for DONALDSON Co INC is streamed in real-time directly from the SEC EDGAR system. We analyze raw Form 4 filings, filtering out technical adjustments and complex derivative transactions. This provides a transparent view of how ownership structure is evolving in $DCI, allowing you to follow the capital of those with the most intimate knowledge of the company.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.