Total buying$00 buys
DCI
DONALDSON Co INC
NYSEIndustrialsIndustrial & Commercial Fans & Blowers & Air Purifing Equip
Insider activity for last month from 09/19 to 10/19.
How these metrics are calculated
Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total selling$00 sells
Net open-market+$0Buying minus selling
Active insiders11Distinct reporting owners
Insider activity report
Calendar-month buckets within the selected date range
Latest filing: Oct 05, 2026
Open-market transaction mix · 0 transactions in the selected period
Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.
View exact monthly counts and disclosed values
| Month | Buys | Sells | Awards (A) | Buy value | Sell value | Net P/S value |
|---|---|---|---|---|---|---|
| Sep 2026 | 0 | 0 | 4 | $0 | $0 | $0 |
| Oct 2026 | 0 | 0 | 10 | $0 | $0 | $0 |
Distinct insiders active
Reporting-owner CIKs by month · peak Oct 2026 (10)Sep 2026Oct 2026
Largest insider activity
By absolute net disclosed value · current transaction page- CE-$1.6M
- BC-$255.0k
- DC-$230.4k
- HM+$35.6k
- RA+$29.8k
DCI transaction history
Newest filings · 20 transactions per pageLatest insider transactions
Form 4 filings from last month.Filing-only signals
Deterministic matches in the selected period
Filing detail checks
Secondary metrics for the selected periodTransaction codes
By Form 4 transaction code in selected period18transactionstxns
- A · Grants / awards · dominant14 · 78%
- F · Tax withholding4 · 22%
Activity by reported role
A joint filing can contribute to multiple rolesPRES8
Director4
CLO3
CHAIR2
Chief financial officer1
CHRO1
CTRL1
Reported Holdings After
Separated by insider, security, and ownership type
Becker Amy CCommon Stock · Direct
50,503Sep 24, 2026
Carpenter Tod E.Common Stock · Direct
318,069Sep 24, 2026
Driesen Bart C.Common Stock · Direct
11,916Sep 24, 2026
Lewis Richard BrentCommon Stock · Direct
50,817Sep 24, 2026
Becker Amy CEmployee Stock Option (right to buy) · Direct
14,800Oct 01, 2026
Cebulla Andrew J.Employee Stock Option (right to buy) · Direct
4,624Oct 01, 2026
DeVincke Darcy JEmployee Stock Option (right to buy) · Direct
10,400Oct 01, 2026
Driesen Bart C.Employee Stock Option (right to buy) · Direct
12,800Oct 01, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells redSep 19 → Oct 19
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DONALDSON Co INC Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at DONALDSON Co INC?
Smiley Jacinth C, Rautio Trudy A., Owens James, Hilger Christopher M., Pogalz Bradley J., Lewis Richard Brent, Driesen Bart C., DeVincke Darcy J, CEBULLA ANDREW J., Becker Amy C, Carpenter Tod E..
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
No code-S sale is available for this period.
What is the recent purchase and sale balance?
No code-P purchases or code-S sales were reported in the selected period.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.