Richard L. MacK is CFO & EVP at MOSAIC CO (MOS). They have made 3 open-market trades across 1 company since 2011, most recently 2026-06-08.
CIK 0001301451
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.
1 open-market purchase totalling $175K since 2017, against 2 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MOS | BUY | 2017-05-04 | 2017-05-04 | $23.35 | $175K | +0.0% | -3.4% | -4.9% |
| MOS | SELL | 2016-05-12 | 2016-05-16 | $25.43 | $931K | +1.4% | +2.0% | +10.3% |
| MOS | SELL · 10b5-1 | 2015-06-01 | 2015-06-02 | $45.44 | $435K | -11.6% | +4.1% | +4.1% |
| MOS | SELL · 10b5-1 | 2015-05-21 | 2015-05-22 | $47.51 | $1.3M | -11.6% | +4.1% | +4.1% |
| MOS | SELL | 2011-01-27 | 2011-01-28 | $78.65 | $1.6M | -11.6% | +4.1% | +4.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.