🕵️ W.W. Grainger, Inc. ($GWW)
SEC insider & ownership activity, last 12 months · CIK 277135 · every row links its SEC filing
Over the last 12 months insiders sold $34.0M with no open-market buying against it. Donald G. MacPherson sold $26.0M through a 10b5-1 trading plan in 22 lots (Dec). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 6 sellers, $34.0M (75 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Donald G. MacPherson | 0 | – | 22 | $26.0M | Dec 5, 2025 |
| Deidra C Merriwether | 0 | – | 24 | $4.1M | Apr 2, 2026 |
| Paige Robbins | 0 | – | 5 | $1.8M | May 12, 2026 |
| Jonathan Michael Leroy | 0 | – | 18 | $1.5M | May 12, 2026 |
| Laurie Thomson | 0 | – | 5 | $386K | May 12, 2026 |
| Nancy L Berardinelli-Krantz | 0 | – | 1 | $200K | Dec 16, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Vanguard Capital Management | 7.0% | 13G | Apr 30, 2026 | filing ↗ | |
| Susan Slavik Williams | 5.7% | 13G | Jan 29, 2025 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Laurie Thomson | $386K | May 12, 2026 | filing ↗ |
| Jonathan Michael Leroy | $1.1M | May 12, 2026 | filing ↗ |
| Paige Robbins | $1.8M | May 12, 2026 | filing ↗ |
| Deidra C Merriwether | $1.6M | Apr 2, 2026 | filing ↗ |
| Deidra C Merriwether | $2.5M | Mar 24, 2026 | filing ↗ |
| Nancy L Berardinelli-Krantz | $200K | Dec 16, 2025 | filing ↗ |
| Donald MacPherson | $25.9M | Dec 4, 2025 | filing ↗ |
| Jonathan Michael Leroy | $496K | Sep 9, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Shareholder vote (5.07) | Apr 29, 2026 | filing ↗ |
| Earnings (2.02) | Feb 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 3, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Dec 11, 2025 | filing ↗ |
| Earnings (2.02) | Oct 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 31, 2025 | filing ↗ |
| Earnings (2.02) | Aug 1, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 1, 2025 | filing ↗ |