| 2026-05-11 | Robin Joseph WeitkampInsider | -50,00 | 0,00 | Derivative Exercise and Sale | 52,58 | 137,00 | - |
| 2026-05-11 | Robin Joseph WeitkampInsider | 40,00 | 2,10k | Derivative Exercise and Retained Stock | 52,58 | 137,00 | 41,24% |
| 2026-05-01 | Mr. Robert J. HaireExec. VP of Supply Chain | 388,00 | 19,53k | Derivative Exercise and Retained Stock | 50,33 | 4,05k | 10,60% |
| 2026-05-01 | Mr. Robert J. HaireExec. VP of Supply Chain | -162,00 | 0,00 | Derivative Exercise and Sale | 50,33 | 4,05k | - |
| 2026-03-03 | Richard Finn StepanVP & General Manager of Polymers | 1,25k | 61,38k | Derivative Exercise and Retained Stock | 48,99 | 474,64k | 0,26% |
| 2026-03-03 | Richard Finn StepanVP & General Manager of Polymers | -429,00 | 270,27 | Derivative Exercise and Sale | 48,99 - 49,62 | 474,64k | - |
| 2026-03-03 | Richard Finn StepanVP & General Manager of Polymers | -154,00 | 7,64k | Sale to Issuer | 48,99 - 49,62 | 474,64k | -0,03% |
| 2026-03-03 | Mr. Luis E. RojoPresident, CEO & Director | 3,75k | 184,27k | Derivative Exercise and Retained Stock | 48,99 - 49,62 | 19,96k | 23,16% |
| 2026-03-03 | Mr. Luis E. RojoPresident, CEO & Director | -1,56k | 0,00 | Derivative Exercise and Sale | 48,99 - 49,62 | 19,96k | - |
| 2026-03-03 | Mr. Robert J. HaireExec. VP of Supply Chain | 1,58k | 77,80k | Derivative Exercise and Retained Stock | 48,99 - 49,62 | 4,21k | 60,21% |
| 2026-03-03 | Mr. Robert J. HaireExec. VP of Supply Chain | -658,00 | 0,00 | Derivative Exercise and Sale | 48,99 - 49,62 | 4,21k | - |
| 2026-03-03 | Mr. Sean Thomas MoriartyInsider | 1,67k | 81,85k | Derivative Exercise and Retained Stock | 48,99 - 49,62 | 20,19k | 9,02% |
| 2026-03-03 | Mr. Sean Thomas MoriartyInsider | -570,00 | 359,10 | Derivative Exercise and Sale | 48,99 - 49,62 | 20,19k | - |
| 2026-03-04 | Mr. Sean Thomas MoriartyInsider | -166,00 | 8,24k | Sale to Issuer | 49,62 | 20,19k | -0,82% |
| 2026-02-17 | Mr. Luis E. RojoPresident, CEO & Director | 446,00 | 29,61k | Derivative Exercise and Retained Stock | 66,39 | 16,15k | 2,84% |
| 2026-02-17 | Mr. Luis E. RojoPresident, CEO & Director | -237,00 | 0,00 | Derivative Exercise and Sale | 66,39 | 16,15k | - |
| 2026-02-17 | Richard Finn StepanVP & General Manager of Polymers | 223,00 | 14,80k | Derivative Exercise and Retained Stock | 66,39 | 473,48k | 0,05% |
| 2026-02-17 | Richard Finn StepanVP & General Manager of Polymers | -118,00 | 0,00 | Derivative Exercise and Sale | 66,39 | 473,48k | - |
| 2026-02-17 | Mr. Sean Thomas MoriartyInsider | 297,00 | 19,72k | Derivative Exercise and Retained Stock | 66,39 | 18,62k | 1,62% |
| 2026-02-17 | Mr. Sean Thomas MoriartyInsider | -158,00 | 0,00 | Derivative Exercise and Sale | 66,39 | 18,62k | - |
| 2022-05-01 | Mr. F. Quinn StepanNon-Executive Chairman | -17,46k | 0,00 | Other Disposition | - | 593,64k | -2,86% |
| 2026-01-13 | Mr. F. Quinn StepanNon-Executive Chairman | 34,74k | 1,52M | Derivative Exercise and Retained Stock | 43,85 | 591,17k | 6,24% |
| 2025-12-31 | Mr. Luis E. RojoPresident, CEO & Director | 4,20k | 198,36k | Derivative Exercise and Retained Stock | 47,21 | 15,71k | 36,52% |
| 2025-12-31 | Mr. Robert J. HaireExec. VP of Supply Chain | 1,89k | 89,26k | Derivative Exercise and Retained Stock | 47,21 | 2,57k | 277,68% |
| 2025-08-12 | Mr. F. Quinn StepanNon-Executive Chairman | -161,87k | 0,00 | Other Disposition | - | 556,33k | -22,54% |
| 2025-08-04 | Mr. F. Quinn StepanNon-Executive Chairman | -10,00k | 501,57k | Verkauf | 49,96 - 50,49 | 695,08k | -1,42% |
| 2025-08-04 | Mr. F. Quinn StepanNon-Executive Chairman | -0,62 | 30,65 | Sale to Issuer | 49,83 | 695,08k | -0,00% |
| 2025-08-04 | Mr. F. Quinn StepanNon-Executive Chairman | -3,00k | 0,00 | Other Disposition | - | 695,08k | -0,43% |