Stepan's top three insider shareholders as of September 17, 2026 are Richard Finn Stepan (V.P. And Gen'L. Mgr., Polymers, 242.65K shares), F Quinn Jr Stepan (Chairman Ceo, 143.01K shares), Richard Finn Stepan (V.P. And Gen'L. Mgr., Polymers, 95.42K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Richard Finn Stepan | V.P. And Gen'L. Mgr., Polymers | 242,649 | 0 | 242,649 | 41.0% | 05 Mar, 2026 |
| 2 | F Quinn Jr Stepan | Chairman Ceo | 143,007 | 0 | 143,007 | 24.1% | 12 May, 2026 |
| 3 | Arthur W Mergner | Exec Vp | 27,616 | 0 | 27,616 | 4.7% | 31 May, 2023 |
| 4 | Luis Rojo | President Ceo | 19,452 | 0 | 19,452 | 3.3% | 05 Mar, 2026 |
| 5 | Joaquin Delgado | Director | 18,637 | 0 | 18,637 | 3.1% | 12 May, 2026 |
| 6 | Gregory E Lawton | Director | 17,039 | 0 | 17,039 | 2.9% | 27 Apr, 2023 |
| 7 | Randall S. Dearth | Director | 16,672 | 0 | 16,672 | 2.8% | 12 May, 2026 |
| 8 | Jan Stern Reed | Director | 16,477 | 0 | 16,477 | 2.8% | 12 May, 2026 |
| 9 | Sean Thomas Moriarty | Vp Gm Surfactants | 15,875 | 0 | 15,875 | 2.7% | 05 Mar, 2026 |
| 10 | Scott R. Behrens | President Ceo | 14,418 | 0 | 14,418 | 2.4% | 11 Mar, 2024 |
| 11 | David Kabbes | Vp Gc Secretary | 0 | 12,242 | 12,242 | 2.1% | 17 Mar, 2025 |
| 12 | Debra Stefaniak | Vp, Business Enablement | 8,257 | 0 | 8,257 | 1.4% | 16 Aug, 2022 |
| 13 | Jason Scott Keiper | Vp Chief Tech Sust Officer | 7,822 | 0 | 7,822 | 1.3% | 17 Mar, 2025 |
| 14 | Edward J Wehmer | Director | 7,449 | 0 | 7,449 | 1.3% | 15 Apr, 2025 |
| 15 | Susan Lewis | Director | 6,962 | 0 | 6,962 | 1.2% | 12 May, 2026 |
| 16 | Lorinda Burgess | Director | 5,900 | 0 | 5,900 | 1.0% | 12 May, 2026 |
| 17 | Corning F. Painter | Director | 4,999 | 0 | 4,999 | 0.8% | 12 May, 2026 |
| 18 | Robert Joseph Haire | Evp, Supply Chain | 3,960 | 0 | 3,960 | 0.7% | 05 May, 2026 |
| 19 | Ruben Dario Velasquez | Svp Chief Financial Officer | 996 | 0 | 996 | 0.2% | 12 Aug, 2026 |
| 20 | Shawn G Lisle | Vp Gc Secretary | 841 | 0 | 841 | 0.1% | 28 Aug, 2026 |
| 21 | Samuel S Hinrichsen | Vp Interim Cfo | 417 | 0 | 417 | 0.1% | 17 Mar, 2025 |
| 22 | Janet Anne Catlett | Vp, Chro | 0 | 365 | 365 | 0.1% | 21 Feb, 2023 |
| 23 | Sharon Purnell | Vp Chro | 204 | 0 | 204 | 0.0% | 05 Mar, 2025 |
| 24 | Robin Joseph Weitkamp | Vp And Gm Surfactants Int | 40 | 0 | 40 | 0.0% | 12 May, 2026 |
| 25 | Andrea Jean Barry | Vp Chro | 16 | 0 | 16 | 0.0% | 12 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 |
|---|---|---|---|---|---|---|---|---|
| 26 Aug, 2026 | Shawn G Lisle | Vp Gc Secretary | Acquired M | 1,154 | $62.35 | $71.95K | 1,180 | Direct |
| 26 Aug, 2026 | Shawn G Lisle | Vp Gc Secretary | Disposed F | 339 | $62.35 | $21.13K | 841 | Direct |
| 26 Aug, 2026 | Shawn G Lisle | Vp Gc Secretary | Disposed M | 1,154 | $0.00 | $0 | 2,308 | Direct |
| 10 Aug, 2026 | Ruben Dario Velasquez | Svp Chief Financial Officer | Acquired M | 1,358 | $64.68 | $87.83K | 1,394 | Direct |
| 10 Aug, 2026 | Ruben Dario Velasquez | Svp Chief Financial Officer | Disposed F | 398 | $64.68 | $25.74K | 996 | Direct |
| 10 Aug, 2026 | Ruben Dario Velasquez | Svp Chief Financial Officer | Disposed M | 1,358 | $0.00 | $0 | 2,716 | Direct |
| 27 Feb, 2026 | Richard Finn Stepan | V.P. And Gen'L. Mgr., Polymers | Acquired A | 57 | $52.51 | $2.98K | 241,396 | Direct |
| 27 Feb, 2026 | Ruben Dario Velasquez | Vp And Chief Financial Officer | Acquired A | 36 | $52.51 | $1.87K | 36 | Direct |
| 08 May, 2026 | Randall S. Dearth | Director | Acquired A | 2,566 | $52.61 | $135.00K | 16,672 | Direct |
| 27 Feb, 2026 | Luis Rojo | President Ceo | Acquired A | 57 | $52.51 | $2.98K | 15,698 | Direct |
| 27 Feb, 2026 | Sean Thomas Moriarty | Vp Gm Surfactants | Acquired A | 57 | $52.51 | $2.98K | 14,205 | Direct |
| 08 May, 2026 | Jan Stern Reed | Director | Acquired A | 2,566 | $52.61 | $135.00K | 16,477 | Direct |
| 08 May, 2026 | Joaquin Delgado | Director | Acquired A | 2,566 | $52.61 | $135.00K | 18,637 | Direct |
| 27 Feb, 2026 | Robert Joseph Haire | Evp, Supply Chain | Acquired A | 57 | $52.51 | $2.98K | 2,539 | Direct |
| 27 Feb, 2026 | Shawn G Lisle | Vp Gc Secretary | Acquired A | 26 | $52.51 | $1.34K | 26 | Direct |
| 27 Feb, 2026 | Andrea Jean Barry | Vp Chro | Acquired A | 16 | $52.51 | $865 | 16 | Direct |
| 08 May, 2026 | Corning F. Painter | Director | Acquired A | 2,566 | $52.61 | $135.00K | 4,999 | Direct |
| 08 May, 2026 | Susan Lewis | Director | Acquired A | 2,566 | $52.61 | $135.00K | 6,962 | Direct |
| 08 May, 2026 | F Quinn Jr Stepan | Director | Acquired A | 2,566 | $52.61 | $135.00K | 143,007 | Direct |
| 08 May, 2026 | Lorinda Burgess | Director | Acquired A | 2,566 | $52.61 | $135.00K | 5,900 | Direct |