As of September 29, 2026, the three largest insider holders of WKC are Michael J Kasbar (Executive Chairman, 966.45K shares), Ira M Birns (Chief Executive Officer, 269.41K shares), John Peter Rau (President, 192.84K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Michael J Kasbar | Executive Chairman | 966,450 | 0 | 966,450 | 43.1% | 02 Sep, 2026 |
| 2 | Ira M Birns | Chief Executive Officer | 269,409 | 0 | 269,409 | 12.0% | 31 Mar, 2026 |
| 3 | John Peter Rau | President | 192,837 | 0 | 192,837 | 8.6% | 31 Mar, 2026 |
| 4 | Stephen K Roddenberry | Director | 133,644 | 0 | 133,644 | 6.0% | 09 Jun, 2025 |
| 5 | Jeffrey Paul Smith | Evp And Coo | 101,866 | 0 | 101,866 | 4.5% | 14 Nov, 2022 |
| 6 | Paul H Stebbins | Director | 0 | 94,253 | 94,253 | 4.2% | 31 Jul, 2026 |
| 7 | Michael Crosby | Evp, Global Land | 86,489 | 0 | 86,489 | 3.9% | 17 Mar, 2022 |
| 8 | Jorge L. Benitez | Director | 68,924 | 0 | 68,924 | 3.1% | 23 Jun, 2026 |
| 9 | Ken Bakshi | Director | 59,306 | 0 | 59,306 | 2.6% | 23 Jun, 2026 |
| 10 | John L Manley | Director | 54,116 | 0 | 54,116 | 2.4% | 31 Jul, 2026 |
| 11 | Richard A Kassar | Director | 53,812 | 0 | 53,812 | 2.4% | 12 May, 2026 |
| 12 | Sharda Cherwoo | Director | 48,874 | 0 | 48,874 | 2.2% | 23 Jun, 2026 |
| 13 | Jose-Miguel Tejada | Evp, Chief Financial Officer | 35,676 | 0 | 35,676 | 1.6% | 17 Aug, 2026 |
| 14 | Jill Smart | Director | 25,264 | 0 | 25,264 | 1.1% | 10 Jun, 2024 |
| 15 | Michael John Kroll | Svp Chief Accounting Officer | 14,479 | 0 | 14,479 | 0.6% | 12 May, 2026 |
| 16 | Jeffrey Michael Kottkamp | Director | 14,014 | 0 | 14,014 | 0.6% | 23 Jun, 2026 |
| 17 | Gregory F Piper | Director | 12,164 | 0 | 12,164 | 0.5% | 23 Jun, 2026 |
| 18 | Andrea B Smith | Director | 10,686 | 0 | 10,686 | 0.5% | 23 Jun, 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 |
|---|---|---|---|---|---|---|---|---|
| 02 Sep, 2026 | Michael J Kasbar | Executive Chairman | Disposed S | 10,000 | $35.40 | $353.96K | 966,450 | Direct |
| 13 Aug, 2026 | Jose-Miguel Tejada | Evp, Chief Financial Officer | Disposed S | 6,000 | $37.16 | $222.96K | 35,676 | Direct |
| 03 Aug, 2026 | Michael J Kasbar | Executive Chairman | Disposed S | 10,000 | $39.41 | $394.15K | 976,450 | Direct |
| 29 Jul, 2026 | John L Manley | Director | Disposed S | 10,000 | $39.88 | $398.80K | 54,116 | Direct |
| 29 Jul, 2026 | Paul H Stebbins | Director | Disposed S | 33,445 | $39.93 | $1.34Mn | 58,878 | Indirect |
| 10 Jul, 2026 | Michael J Kasbar | Executive Chairman | Disposed S | 25,000 | $35.04 | $875.94K | 986,450 | Direct |
| 02 Jul, 2026 | Michael J Kasbar | Executive Chairman | Disposed S | 10,000 | $33.38 | $333.78K | 1,011,450 | Direct |
| 18 Jun, 2026 | John L Manley | Director | Acquired A | 7,231 | $0.00 | $0 | 64,116 | Direct |
| 18 Jun, 2026 | Andrea B Smith | Director | Acquired A | 6,427 | $0.00 | $0 | 10,686 | Direct |
| 18 Jun, 2026 | Jeffrey Michael Kottkamp | Director | Acquired A | 6,427 | $0.00 | $0 | 14,014 | Direct |
| 18 Jun, 2026 | Sharda Cherwoo | Director | Acquired A | 6,427 | $0.00 | $0 | 48,874 | Direct |
| 18 Jun, 2026 | Jorge L. Benitez | Director | Acquired A | 6,427 | $0.00 | $0 | 68,924 | Direct |
| 18 Jun, 2026 | Ken Bakshi | Director | Acquired A | 7,070 | $0.00 | $0 | 59,306 | Direct |
| 18 Jun, 2026 | Gregory F Piper | Director | Acquired A | 6,427 | $0.00 | $0 | 12,164 | Direct |
| 18 Jun, 2026 | Paul H Stebbins | Director | Acquired A | 6,106 | $0.00 | $0 | 26,778 | Direct |
| 05 Jun, 2026 | Michael J Kasbar | Executive Chairman | Disposed S | 700 | $30.00 | $21.00K | 1,040,750 | Direct |
| 08 Jun, 2026 | Michael J Kasbar | Executive Chairman | Disposed S | 19,300 | $30.17 | $582.37K | 1,021,450 | Direct |
| 02 Jun, 2026 | Michael J Kasbar | Executive Chairman | Disposed S | 10,000 | $29.15 | $291.54K | 1,041,450 | Direct |
| 10 May, 2026 | Jose-Miguel Tejada | Evp, Chief Financial Officer | Disposed F | 435 | $27.07 | $11.78K | 43,168 | Direct |
| 10 May, 2026 | Michael John Kroll | Svp Chief Accounting Officer | Disposed F | 203 | $27.07 | $5.50K | 10,187 | Direct |