Cabot's three largest insider shareholders as of September 09, 2026 are Sean D Keohane (President And Ceo, 404.13K shares), Jeff Ji Zhu (Executive Vice President, 85.34K shares), Jeff Ji Zhu (Executive Vice President, 85.34K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Sean D Keohane | President And Ceo | 404,134 | 0 | 404,134 | 42.9% | 31 Aug, 2026 |
| 2 | Erica Mclaughlin | Executive Vice President, Cfo | 122,518 | 0 | 122,518 | 13.0% | 21 Nov, 2025 |
| 3 | Jeff Ji Zhu | Executive Vice President | 85,337 | 0 | 85,337 | 9.1% | 21 Nov, 2025 |
| 4 | Hobart Kalkstein | Executive Vice President | 53,169 | 0 | 53,169 | 5.6% | 20 Nov, 2024 |
| 5 | Karen A Kalita | Svp And General Counsel | 45,242 | 0 | 45,242 | 4.8% | 21 Nov, 2025 |
| 6 | Cabot Juan Enriquez | Director | 41,526 | 0 | 41,526 | 4.4% | 12 Jan, 2026 |
| 7 | William C. Kirby | Director | 27,688 | 0 | 27,688 | 2.9% | 12 Jan, 2026 |
| 8 | Sue H. Rataj | Director | 27,460 | 0 | 27,460 | 2.9% | 12 Jan, 2024 |
| 9 | Michael M Morrow | Director | 22,302 | 0 | 22,302 | 2.4% | 12 Jan, 2026 |
| 10 | Matthais L. Wolfgruber | Director | 22,099 | 0 | 22,099 | 2.3% | 14 Jan, 2025 |
| 11 | Cynthia A Arnold | Director | 19,620 | 0 | 19,620 | 2.1% | 12 Jan, 2026 |
| 12 | Christine Y Yan | Director | 17,171 | 0 | 17,171 | 1.8% | 12 Jan, 2026 |
| 13 | Matthew Forster Wood | Senior Vice President | 13,496 | 0 | 13,496 | 1.4% | 21 Nov, 2025 |
| 14 | Lisa M Dumont | Vp, Controller Cao | 11,715 | 0 | 11,715 | 1.2% | 21 Nov, 2025 |
| 15 | Raffiq Nathoo | Director | 9,266 | 0 | 9,266 | 1.0% | 12 Jan, 2026 |
| 16 | William F Iii Masterson | Senior Vice President | 7,210 | 0 | 7,210 | 0.8% | 05 Dec, 2025 |
| 17 | Michelle Elizabeth Williams | Director | 6,776 | 0 | 6,776 | 0.7% | 12 Jan, 2026 |
| 18 | Thierry Fj Vanlancker | Director | 4,902 | 0 | 4,902 | 0.5% | 12 Jan, 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 |
|---|---|---|---|---|---|---|---|---|
| 28 Aug, 2026 | Sean D Keohane | President And Ceo | Acquired M | 134,895 | $50.00 | $6.74Mn | 539,029 | Direct |
| 28 Aug, 2026 | Sean D Keohane | President And Ceo | Disposed S | 134,895 | $85.00 | $11.47Mn | 404,134 | Direct |
| 28 Aug, 2026 | Sean D Keohane | President And Ceo | Disposed M | 134,895 | $0.00 | $0 | 0 | Direct |
| 24 Aug, 2026 | Sean D Keohane | President And Ceo | Acquired M | 2,779 | $50.00 | $138.95K | 291,652 | Direct |
| 24 Aug, 2026 | Sean D Keohane | President And Ceo | Disposed S | 2,779 | $85.50 | $237.60K | 288,873 | Direct |
| 24 Aug, 2026 | Sean D Keohane | President And Ceo | Acquired M | 2,779 | $0.00 | $0 | 134,895 | Direct |
| 07 Aug, 2026 | Sean D Keohane | President And Ceo | Acquired M | 91,923 | $62.24 | $5.72Mn | 496,057 | Direct |
| 07 Aug, 2026 | Sean D Keohane | President And Ceo | Disposed S | 91,923 | $86.41 | $7.94Mn | 404,134 | Direct |
| 07 Aug, 2026 | Sean D Keohane | President And Ceo | Acquired M | 91,923 | $0.00 | $0 | 0 | Direct |
| 30 Jun, 2026 | Sean D Keohane | President And Ceo | Acquired A | 84 | $90.82 | $7.60K | 47,831 | Direct |
| 30 Jun, 2026 | Raffiq Nathoo | Director | Acquired A | 262 | $90.82 | $23.75K | 1,878 | Direct |
| 12 Jun, 2026 | Sean D Keohane | President And Ceo | Acquired A | 256 | $87.65 | $22.44K | 47,747 | Direct |
| 12 Jun, 2026 | William F Iii Masterson | Senior Vice President | Acquired A | 3 | $87.65 | $247 | 527 | Direct |
| 12 Jun, 2026 | Erica Mclaughlin | Executive Vice President, Cfo | Acquired A | 55 | $87.65 | $4.84K | 10,301 | Direct |
| 12 Jun, 2026 | Raffiq Nathoo | Director | Acquired A | 9 | $87.65 | $760 | 1,616 | Direct |
| 12 Jun, 2026 | Lisa M Dumont | Vp, Controller Cao | Acquired A | 4 | $87.65 | $349 | 743 | Direct |
| 12 Jun, 2026 | William F Iii Masterson | Senior Vice President | Acquired A | 3 | $87.65 | $247 | 527 | Direct |
| 12 Jun, 2026 | Karen A Kalita | Svp And General Counsel | Acquired A | 28 | $87.65 | $2.50K | 5,310 | Direct |
| 12 Jun, 2026 | Douglas G Delgrosso | Director | Acquired A | 28 | $87.65 | $2.43K | 5,165 | Direct |
| 31 Mar, 2026 | Raffiq Nathoo | Director | Acquired A | 315 | $75.31 | $23.75K | 1,608 | Direct |