W.W. Grainger's three largest insider shareholders as of September 29, 2026 are Donald G Macpherson (Chairman And Ceo, 108.74K shares), John L Howard (Sr. Vp And General Counsel, 20.57K shares), Paige K Robbins (Sr. Vp, 16.00K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Donald G Macpherson | Chairman And Ceo | 108,740 | 0 | 108,740 | 69.2% | 02 Apr, 2026 |
| 2 | John L Howard | Sr. Vp And General Counsel | 20,567 | 0 | 20,567 | 13.1% | 04 Apr, 2022 |
| 3 | Deidra C Merriwether | Sr. Vp Cfo | 10,541 | 0 | 10,541 | 6.7% | 02 Apr, 2026 |
| 4 | Kathleen S Carroll | Svp Chief Hr Officer | 4,268 | 0 | 4,268 | 2.7% | 04 Apr, 2023 |
| 5 | Krantz Nancy L Berardinelli | Sr. Vp Clo | 3,791 | 0 | 3,791 | 2.4% | 02 Apr, 2026 |
| 6 | Melanie J Tinto | Svp Chief Hr Officer | 3,123 | 0 | 3,123 | 2.0% | 05 May, 2026 |
| 7 | Paige K Robbins | Sr. Vp | 2,232 | 0 | 2,232 | 1.4% | 14 May, 2026 |
| 8 | Matt Fortin | Svp Chief Hr Officer | 1,848 | 0 | 1,848 | 1.2% | 24 Jun, 2024 |
| 9 | Jonny M Leroy | Svp, Chief Technology Officer | 1,554 | 0 | 1,554 | 1.0% | 14 May, 2026 |
| 10 | Laurie R Thomson | Vp, Controller | 399 | 0 | 399 | 0.3% | 14 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 01 Sep, 2026 | Steven Andrew White | Director | Acquired A | 5 | $1,309.49 | $6.55K | 5 | Direct |
| 01 Sep, 2026 | George S Davis | Director | Acquired A | 2 | $1,309.49 | $2.62K | 1,262 | Direct |
| 01 Sep, 2026 | Beatriz R Perez | Director | Acquired A | 10 | $1,309.49 | $13.09K | 5,365 | Direct |
| 01 Sep, 2026 | Cindy J Miller | Director | Acquired A | 1 | $1,309.49 | $1.31K | 537 | Direct |
| 01 Sep, 2026 | Katherine D. Jaspon | Director | Acquired A | 4 | $1,309.49 | $5.24K | 4 | Direct |
| 01 Sep, 2026 | Katherine D. Jaspon | Director | Disposed G | 4 | $0.00 | $0 | 0 | Direct |
| 01 Sep, 2026 | Ernest Scott Santi | Director | Acquired A | 20 | $1,309.49 | $26.19K | 10,653 | Direct |
| 01 Sep, 2026 | Steven Andrew White | Director | Disposed G | 5 | $0.00 | $0 | 0 | Direct |
| 01 Sep, 2026 | Neil S Novich | Director | Acquired A | 64 | $1,309.49 | $83.81K | 64 | Direct |
| 01 Sep, 2026 | Rodney C Adkins | Director | Acquired A | 12 | $1,309.49 | $15.71K | 6,175 | Direct |
| 01 Sep, 2026 | Christopher J Klein | Director | Acquired A | 2 | $1,309.49 | $2.62K | 618 | Direct |
| 01 Sep, 2026 | Lucas E Watson | Director | Acquired A | 12 | $1,309.49 | $15.71K | 6,023 | Direct |
| 01 Sep, 2026 | Katherine D. Jaspon | Director | Acquired G | 4 | $0.00 | $0 | 1,854 | Indirect |
| 01 Sep, 2026 | Steven Andrew White | Director | Acquired G | 5 | $0.00 | $0 | 2,924 | Indirect |
| 01 Sep, 2026 | Neil S Novich | Director | Disposed G | 64 | $0.00 | $0 | 0 | Direct |
| 01 Sep, 2026 | Neil S Novich | Director | Acquired G | 64 | $0.00 | $0 | 33,708 | Indirect |
| 01 Sep, 2026 | Susan Slavik Williams | Director | Acquired A | 4 | $1,309.49 | $5.24K | 2,473 | Direct |
| 05 Jun, 2026 | Neil S Novich | Director | Disposed G | 33,644 | $0.00 | $0 | 0 | Direct |
| 05 Jun, 2026 | Neil S Novich | Director | Acquired G | 33,644 | $0.00 | $0 | 33,644 | Indirect |
| 01 Jun, 2026 | Beatriz R Perez | Director | Acquired A | 11 | $1,234.24 | $13.58K | 5,355 | Direct |