Exponent Inc
Ownership
Ownership Structure
Who owns Exponent Inc (EXPO)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.6% of the shares are freely tradable; institutional investors hold 101.8%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 13.01 | 6,184,950 | +1.9 | 06/30/2026 |
| Kayne Anderson Rudnick Investment Management LLC | 8.40 | 3,995,684 | +2.8 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 6.61 | 3,143,624 | +6.7 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.59 | 2,180,212 | -1.4 | 06/30/2026 |
| State Street Corp | 4.09 | 1,943,646 | +2.9 | 06/30/2026 |
| Geode Capital Management, LLC | 3.68 | 1,748,031 | +6.1 | 06/30/2026 |
| Geneva Capital Management | 2.96 | 1,405,173 | -21.7 | 06/30/2026 |
| Royce & Associates, LP | 2.78 | 1,323,097 | +15.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.56 | 1,691,812 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.11 | 1,476,311 | -4.3 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Corrigan Catherine | Chief Executive Officer | 129,108 | 11,284,039 $ | Aug 17, 2026 | direct |
| Souri Shukri Jeries | Group Vice President | 40,873 | 3,572,300 $ | Sep 18, 2026 | direct |
| Reiss Richard | Group Vice President | 1,008 | 88,099 $ | Nov 3, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Nov 3, 2026 | Reiss Richard | Group Vice President | Sell | 1,280 | 86.44 | 110,643 |
| Sep 18, 2026 | Souri Shukri Jeries | Group Vice President | Buy | 184 | 68.45 | 12,594 |
| Aug 17, 2026 | Corrigan Catherine | Chief Executive Officer | Sell | 1,707 | 66.28 | 113,136 |
| Aug 17, 2026 | Corrigan Catherine | Chief Executive Officer | Other | 2,379 | 29.05 | 69,110 |
| Jul 28, 2026 | Corrigan Catherine | Chief Executive Officer | Other | 12,665 | 37.45 | 474,304 |
| Jul 15, 2026 | Corrigan Catherine | Chief Executive Officer | Sell | 1,737 | 62.78 | 109,045 |
| Jul 15, 2026 | Corrigan Catherine | Chief Executive Officer | Other | 2,379 | 29.05 | 69,110 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 4, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.