SEC Form 4 · Updated Daily
EXPO
— EXPONENT, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| SCHLENKER RICHARD L JR | Officer | 234,045 | 2026-03-11 | M |
| Corrigan Catherine | Director · Officer | 130,815 | 2026-08-17 | M |
| CALIGIURI ROBERT D | Officer | 129,512 | 2016-08-12 | S |
| ARMACOST SAMUEL H | Director | 95,867 | 2014-05-28 | M |
| SHOVEN JOHN B | Director | 72,791 | 2023-06-07 | M |
| GAULKE MICHAEL R | Director | 70,671 | 2018-05-30 | M |
| JOHNSTON PAUL R | Director | 62,940 | 2026-06-03 | M |
| MALLADI SUBBAIAH V | Officer | 55,896 | 2016-03-09 | M |
| BARRETT BARBARA M | Director | 45,628 | 2008-05-01 | M |
| Reitman Maureen T. F. | Officer | 40,982 | 2026-03-11 | M |
| Souri Shukri Jeries | Officer | 40,873 | 2026-09-18 | P |
| Zumwalt Debra | Director | 31,830 | 2026-06-03 | M |
| Pye John | Officer | 31,515 | 2026-03-11 | M |
| Murray Steven J | Officer | 27,412 | 2023-08-21 | S |
| Osteraas John | Officer | 25,860 | 2019-03-13 | M |
| Shepard Sally | Officer | 25,523 | 2024-03-13 | M |
| Boehm Paul | Officer | 24,045 | 2016-08-16 | S |
| Anderson Elizabeth L | Officer | 17,347 | 2016-03-09 | M |
| Kytomaa Harri | Officer | 16,626 | 2023-03-15 | M |
| KATZENBACH JON R | Director | 13,419 | 2010-06-03 | M |
| Brown George H. | Director | 10,730 | 2026-06-03 | M |
| Lindstrom Carol | Director | 9,405 | 2026-06-03 | M |
| Haddad Robert | Officer | 5,971 | 2021-03-10 | M |
| MCCARTHY ROGER L | Director · Officer | 4,800 | 2007-02-23 | M |
| CRANSTON MARY B | Director | 4,156 | 2014-05-28 | M |
| RIGGINS STEPHEN C | Director | 3,324 | 2017-05-31 | M |
| ANDERSON ERIC R | Officer | 2,955 | 2026-05-01 | — |
| Reiss Richard | Officer | 2,288 | 2026-05-19 | S |
| RICHARDSON KAREN A | Director | 2,009 | 2026-06-03 | M |
| James Bradley A | Officer | 1,105 | 2026-05-26 | S |
| MOALLI JOHN E | Officer | 945 | 2013-04-22 | S |
| Rakow Joseph | Officer | 0 | 2026-05-13 | S |
| Sala Joseph | Officer | 0 | 2026-05-13 | S |
| Guyer Eric | Officer | 0 | 2024-05-20 | S |
| DENEND LESLIE G | Director | 0 | 2013-07-26 | S |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-18 | Souri Shukri Jeries | Open-market buy | 184 | $68.45 | 40,873 |
| 2026-09-04 | Souri Shukri Jeries | — | — | — | 40,689 |
| 2026-08-17 | Corrigan Catherine | Option exercise (derivative) | 2,379 | — | 0 |
| 2026-08-17 | Corrigan Catherine | Open-market sale | 1,707 | $66.28 | 129,108 |
| 2026-08-17 | Corrigan Catherine | Option exercise | 2,379 | $29.05 | 130,815 |
| 2026-07-28 | Corrigan Catherine | Option exercise (derivative) | 12,665 | — | 12,665 |
| 2026-07-28 | Corrigan Catherine | Option exercise | 12,665 | $37.45 | 128,436 |
| 2026-07-15 | Corrigan Catherine | Option exercise (derivative) | 2,379 | — | 2,379 |
| 2026-07-15 | Corrigan Catherine | Open-market sale | 1,737 | $62.78 | 115,771 |
| 2026-07-15 | Corrigan Catherine | Option exercise | 2,379 | $29.05 | 117,508 |
| 2026-06-25 | Corrigan Catherine | Option exercise (derivative) | 7,872 | — | 0 |
| 2026-06-25 | Corrigan Catherine | Option exercise | 7,872 | $25.41 | 115,129 |
| 2026-06-15 | Corrigan Catherine | Option exercise (derivative) | 2,380 | — | 4,758 |
| 2026-06-15 | Corrigan Catherine | Option exercise (derivative) | 3,225 | — | 0 |
| 2026-06-15 | Corrigan Catherine | Open-market sale | 1,793 | $57.13 | 107,257 |
| 2026-06-15 | Corrigan Catherine | Option exercise | 2,380 | $29.05 | 109,050 |
| 2026-06-15 | Corrigan Catherine | Open-market sale | 2,326 | $57.13 | 106,670 |
| 2026-06-15 | Corrigan Catherine | Option exercise | 3,225 | $25.41 | 108,996 |
| 2026-06-04 | Zumwalt Debra | Grant / award (derivative) | 2,859 | — | 2,859 |
| 2026-06-04 | RICHARDSON KAREN A | Grant / award (derivative) | 2,859 | — | 2,859 |
| 2026-06-04 | Brown George H. | Grant / award (derivative) | 2,859 | — | 2,859 |
| 2026-06-04 | Lindstrom Carol | Grant / award (derivative) | 2,859 | — | 2,859 |
| 2026-06-03 | JOHNSTON PAUL R | Option exercise (derivative) | 2,009 | — | 0 |
| 2026-06-03 | JOHNSTON PAUL R | Option exercise | 2,009 | — | 62,940 |
| 2026-06-03 | Zumwalt Debra | Option exercise (derivative) | 2,009 | — | 0 |
| 2026-06-03 | Zumwalt Debra | Option exercise | 2,009 | — | 31,830 |
| 2026-06-03 | RICHARDSON KAREN A | Option exercise (derivative) | 2,009 | — | 0 |
| 2026-06-03 | RICHARDSON KAREN A | Option exercise | 2,009 | — | 2,009 |
| 2026-06-03 | Brown George H. | Option exercise (derivative) | 2,009 | — | 0 |
| 2026-06-03 | Brown George H. | Option exercise | 2,009 | — | 10,730 |
| 2026-06-03 | Lindstrom Carol | Option exercise (derivative) | 2,009 | — | 0 |
| 2026-06-03 | Lindstrom Carol | Option exercise | 2,009 | — | 9,405 |
| 2026-05-26 | James Bradley A | Open-market sale | 2,000 | $57.47 | 1,105 |
| 2026-05-19 | Reiss Richard | Open-market sale | 1,672 | $58.65 | 2,288 |
| 2026-05-15 | Corrigan Catherine | Option exercise (derivative) | 2,380 | — | 7,138 |
| 2026-05-15 | Corrigan Catherine | Option exercise (derivative) | 3,226 | — | 3,225 |
| 2026-05-15 | Corrigan Catherine | Open-market sale | 1,827 | $54.06 | 105,771 |
| 2026-05-15 | Corrigan Catherine | Option exercise | 2,380 | $29.05 | 107,598 |
| 2026-05-15 | Corrigan Catherine | Open-market sale | 2,367 | $54.06 | 105,218 |
| 2026-05-15 | Corrigan Catherine | Option exercise | 3,226 | $25.41 | 107,585 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.