Exponent's top three insider shareholders as of September 12, 2026 are Richard L Jr Schlenker (Evp Chief Financial Officer, 230.35K shares), Richard L Jr Schlenker (Evp Chief Financial Officer, 230.35K shares), Catherine Corrigan (Chief Executive Officer, 128.44K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Richard L Jr Schlenker | Evp Chief Financial Officer | 230,351 | 0 | 230,351 | 33.4% | 13 Mar, 2026 |
| 2 | Catherine Corrigan | Chief Executive Officer | 128,436 | 0 | 128,436 | 18.6% | 30 Jul, 2026 |
| 3 | John B Shoven | Director | 72,791 | 0 | 72,791 | 10.6% | 09 Jun, 2023 |
| 4 | Paul R Johnston | Executive Chairman | 62,940 | 0 | 62,940 | 9.1% | 04 Jun, 2026 |
| 5 | Maureen T. F. Reitman | Group Vice President | 39,226 | 0 | 39,226 | 5.7% | 13 Mar, 2026 |
| 6 | Debra Zumwalt | Director | 31,830 | 0 | 31,830 | 4.6% | 04 Jun, 2026 |
| 7 | John Pye | Vp Global Offices Innovation | 29,131 | 0 | 29,131 | 4.2% | 13 Mar, 2026 |
| 8 | Steven J Murray | Group Vice President | 27,412 | 0 | 27,412 | 4.0% | 22 Aug, 2023 |
| 9 | Sally Shepard | Chief Human Resources Officer | 23,745 | 0 | 23,745 | 3.4% | 15 Mar, 2024 |
| 10 | Harri Kytomaa | Group Vice President | 14,656 | 0 | 14,656 | 2.1% | 17 Mar, 2023 |
| 11 | George H. Brown | Director | 10,730 | 0 | 10,730 | 1.6% | 04 Jun, 2026 |
| 12 | Carol Lindstrom | Director | 9,405 | 0 | 9,405 | 1.4% | 04 Jun, 2026 |
| 13 | Joseph Rakow | Group Vice President | 2,945 | 0 | 2,945 | 0.4% | 13 Mar, 2026 |
| 14 | Richard Reiss | Group Vice President | 2,288 | 0 | 2,288 | 0.3% | 19 May, 2026 |
| 15 | Karen A Richardson | Director | 2,009 | 0 | 2,009 | 0.3% | 04 Jun, 2026 |
| 16 | Bradley A James | Group Vice President | 1,105 | 0 | 1,105 | 0.2% | 27 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 |
|---|---|---|---|---|---|---|---|---|
| 28 Jul, 2026 | Catherine Corrigan | Chief Executive Officer | Acquired M | 12,665 | $37.45 | $474.30K | 128,436 | Direct |
| 28 Jul, 2026 | Catherine Corrigan | Chief Executive Officer | Disposed M | 12,665 | — | — | 12,665 | Direct |
| 03 Jun, 2026 | Carol Lindstrom | Director | Acquired M | 2,009 | — | — | 9,405 | Direct |
| 03 Jun, 2026 | Debra Zumwalt | Director | Acquired M | 2,009 | — | — | 31,830 | Direct |
| 03 Jun, 2026 | Karen A Richardson | Director | Acquired M | 2,009 | — | — | 2,009 | Direct |
| 03 Jun, 2026 | George H. Brown | Director | Acquired M | 2,009 | — | — | 10,730 | Direct |
| 03 Jun, 2026 | Paul R Johnston | Director | Acquired M | 2,009 | — | — | 62,940 | Direct |
| 03 Jun, 2026 | Paul R Johnston | Director | Disposed M | 2,009 | — | — | 0 | Direct |
| 03 Jun, 2026 | Debra Zumwalt | Director | Disposed M | 2,009 | — | — | 0 | Direct |
| 03 Jun, 2026 | Carol Lindstrom | Director | Disposed M | 2,009 | — | — | 0 | Direct |
| 03 Jun, 2026 | George H. Brown | Director | Disposed M | 2,009 | — | — | 0 | Direct |
| 04 Jun, 2026 | Debra Zumwalt | Director | Acquired A | 2,859 | — | — | 2,859 | Direct |
| 03 Jun, 2026 | Karen A Richardson | Director | Disposed M | 2,009 | — | — | 0 | Direct |
| 04 Jun, 2026 | Carol Lindstrom | Director | Acquired A | 2,859 | — | — | 2,859 | Direct |
| 04 Jun, 2026 | George H. Brown | Director | Acquired A | 2,859 | — | — | 2,859 | Direct |
| 04 Jun, 2026 | Karen A Richardson | Director | Acquired A | 2,859 | — | — | 2,859 | Direct |
| 26 May, 2026 | Bradley A James | Group Vice President | Disposed S | 2,000 | $57.47 | $114.93K | 1,105 | Direct |
| 19 May, 2026 | Richard Reiss | Group Vice President | Disposed S | 1,672 | $58.65 | $98.06K | 2,288 | Direct |
| 13 May, 2026 | Joseph Rakow | Group Vice President | Disposed S | 2,945 | $54.66 | $160.97K | 0 | Direct |
| 13 May, 2026 | Joseph Sala | Group Vice President | Disposed S | 2,066 | $56.66 | $117.06K | 0 | Direct |