Thomas R. Scalf is President at DONALDSON CO INC (DCI). They have made 13 open-market trades across 1 company since 2015, most recently 2025-03-17.
CIK 0001603888
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 13 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| DCI | 56,834 | $5.0M |
Shares reported on the most recent Form 4, priced at the 2025-03-18 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DCI | SELL | 2025-03-17 | 2025-03-18 | $69.22 | $2.0M | -1.6% | -8.0% | +1.3% |
| DCI | SELL | 2025-02-28 | 2025-03-03 | $68.89 | $2.0M | -1.3% | +0.6% | +1.9% |
| DCI | SELL | 2024-10-07 | 2024-10-09 | $73.29 | $813K | +3.1% | +6.4% | -7.5% |
| DCI | SELL | 2024-03-01 | 2024-03-05 | $71.66 | $1.5M | +1.4% | +1.9% | -1.1% |
| DCI | SELL | 2023-01-11 | 2023-01-11 | $61.00 | $275K | -0.2% | +3.2% | +2.4% |
| DCI | SELL | 2022-12-02 | 2022-12-05 | $60.95 | $640K | -0.8% | -0.5% | +11.0% |
| DCI | SELL | 2022-10-13 | 2022-10-14 | $51.67 | $362K | +7.5% | +14.7% | +19.3% |
| DCI | SELL | 2021-12-17 | 2021-12-20 | $58.12 | $872 | +5.5% | +3.0% | -5.8% |
| DCI | SELL | 2021-12-03 | 2021-12-06 | $55.24 | $221K | +0.2% | +1.9% | -16.1% |
| DCI | SELL | 2020-12-04 | 2020-12-07 | $54.41 | $54K | +4.7% | +7.6% | +10.7% |
| DCI | SELL | 2020-06-08 | 2020-06-09 | $50.97 | $127K | -9.7% | -9.3% | -7.1% |
| DCI | SELL | 2020-03-09 | 2020-03-10 | $44.93 | $112K | -20.3% | -5.2% | +13.5% |
| DCI | SELL | 2015-03-27 | 2015-03-27 | $37.09 | $26K | -5.5% | +1.0% | +1.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.