Donald G. Macpherson is CEO & Chairman at W.W. GRAINGER, INC. (GWW). They have made 14 open-market trades across 1 company since 2012, most recently 2026-08-28.
CIK 0001451437
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 14 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| GWW | SELL · 10b5-1 | 2025-12-04 | 2025-12-08 | $972.74 | $48.5M | +6.2% | +4.7% | +16.2% |
| GWW | SELL · 10b5-1 | 2024-09-30 | 2024-10-01 | $1037.63 | $26.7M | +4.5% | +6.9% | +1.9% |
| GWW | SELL · 10b5-1 | 2024-09-16 | 2024-09-18 | $1000.83 | $52.5M | +0.5% | +9.0% | +8.3% |
| GWW | SELL · 10b5-1 | 2023-11-28 | 2023-11-30 | $782.39 | $5.4M | +4.5% | +3.5% | +24.0% |
| GWW | SELL | 2023-03-03 | 2023-03-06 | $694.85 | $55.5M | -2.5% | -7.5% | -3.3% |
| GWW | SELL | 2022-12-02 | 2022-12-05 | $599.88 | $13.4M | -4.5% | -5.8% | +19.0% |
| GWW | SELL | 2022-05-02 | 2022-05-04 | $488.20 | $9.6M | -5.1% | -0.6% | +8.2% |
| GWW | SELL | 2021-12-03 | 2021-12-06 | $488.10 | $14.3M | +1.3% | +1.3% | -2.1% |
| GWW | SELL | 2021-04-05 | 2021-04-05 | $407.01 | $3.5M | -0.4% | +13.4% | +10.1% |
| GWW | SELL | 2020-09-17 | 2020-09-21 | $356.22 | $9.6M | +4.8% | +9.3% | +20.5% |
| GWW | SELL | 2020-02-19 | 2020-02-20 | $306.96 | $4.8M | -7.1% | -31.9% | -3.8% |
| GWW | SELL | 2019-02-21 | 2019-02-22 | $310.03 | $718K | -3.6% | -7.7% | -16.9% |
| GWW | SELL | 2019-02-21 | 2019-02-22 | $310.03 | $1.4M | -3.6% | -7.7% | -16.9% |
| GWW | SELL | 2018-08-01 | 2018-08-02 | $342.24 | $8.1M | +5.4% | +3.8% | -17.2% |
| GWW | SELL | 2018-08-01 | 2018-08-02 | $342.36 | $7.3M | +5.4% | +3.8% | -17.2% |
| GWW | SELL | 2017-11-29 | 2017-12-01 | $212.48 | $4.9M | +1.3% | +6.5% | +15.5% |
| GWW | SELL | 2017-11-29 | 2017-12-01 | $212.48 | $9.7M | +1.3% | +6.5% | +15.5% |
| GWW | SELL · 10b5-1 | 2015-06-15 | 2015-06-16 | $235.65 | $683K | -7.0% | +1.3% | +1.3% |
| GWW | SELL · 10b5-1 | 2015-03-12 | 2015-03-13 | $231.89 | $696K | -7.0% | +1.3% | +1.3% |
| GWW | SELL · 10b5-1 | 2015-02-27 | 2015-02-27 | $238.53 | $651K | -7.0% | +1.3% | +1.3% |
| GWW | SELL · 10b5-1 | 2015-02-27 | 2015-02-27 | $239.61 | $180K | -7.0% | +1.3% | +1.3% |
| GWW | SELL · 10b5-1 | 2014-12-15 | 2014-12-16 | $245.72 | $713K | -7.0% | +1.3% | +1.3% |
| GWW | SELL · 10b5-1 | 2014-09-15 | 2014-09-16 | $247.81 | $446K | -7.0% | +1.3% | +1.3% |
| GWW | SELL · 10b5-1 | 2014-09-15 | 2014-09-16 | $247.25 | $272K | -7.0% | +1.3% | +1.3% |
| GWW | SELL · 10b5-1 | 2014-06-12 | 2014-06-13 | $261.66 | $785K | -7.0% | +1.3% | +1.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.