| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director | Chairman and CEO | Chief Executive Officer +1 more
3 companies
Donald G Macpherson is Chairman and CEO at GWW, with reported holdings spanning 3 companies. Donald G Macpherson's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $152.5M at current prices.
Our model assigns Donald G Macpherson a below-average insider score of 44/100, based on 11 past trades. Over a 12-month horizon, 22.2% of those trades were profitable, with an average 12-month return of -30.0%.
Donald G Macpherson's largest disclosed position is in GWW as Chairman and CEO, worth about $152.0M. The GWW filings lean toward selling, a net 237,243 shares.
Donald G Macpherson has 37 Form 4 filings on record from February 2016 to August 2026, across 3 companies: Director at DuPont de Nemours (DD), 2026; Chairman and CEO at W.W. Grainger (GWW), 2016–2026; Director at International Paper Co /new/ (IP), 2021–2023.
The 214 reported transactions were 138 open-market sales, 28 tax withholdings, 27 stock awards and 12 option exercises, plus smaller numbers of other types.
Counted by filing, the open-market trades come to no purchases and 14 sales worth about $149.6M.
The largest open-market sale was 49,121 shares of GWW at an average $694.36 on March 3, 2023, about $34.1M. Twelve months later GWW was up 41%.
All 4 sales since April 2023 were made under a Rule 10b5-1 trading plan, set up in advance.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 5, 2025 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sale+OE10b5-1 | 26,686 | $972.70 | $25,957,458.02 | -20.4% | +17.4% | - | |
| Sep 30, 2024 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sell10b5-1 | 12,992 | $1,037.68 | $13,481,557.41 | -11.6% | +1.9% | -8.3% | |
| Sep 16, 2024 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sale+OE10b5-1 | 27,502 | $1,000.82 | $27,524,542.27 | -19.8% | +13.1% | -1.4% | |
| Nov 29, 2023 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sell10b5-1 | 5,355 | $782.02 | $4,187,707.92 | -5.7% | +25.0% | +55.4% | |
| Mar 3, 2023 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sale+OE | 49,121 | $694.36 | $34,107,746.31 | -38.0% | -6.1% | +40.6% | |
| Dec 2, 2022 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sale+OE | 14,380 | $599.53 | $8,621,272.71 | -17.2% | +13.7% | +33.5% | |
| May 2, 2022 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sale+OE | 12,266 | $488.83 | $5,995,968.94 | -14.4% | +12.4% | +41.7% | |
| Dec 3, 2021 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sale+OE | 15,741 | $487.86 | $7,679,358.61 | -19.7% | -1.7% | +24.1% | |
| Apr 5, 2021 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sell | 4,276 | $407.01 | $1,740,365.93 | -6.3% | +10.1% | +29.1% | |
| Sep 17, 2020 | GWW W.W. Grainger, Inc. | Chairman and CEO | Sale+OE | 14,909 | $356.05 | $5,308,421.40 | -21.5% | - | - |