Exponent, Inc. (EXPO) ownership: Top institutional holder: BlackRock, Inc. ($395.99M). Insider activity: Net Seller (0 buys, 20 sells). 5 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 6068812.00 | $395.99M | 2026-03-31 |
| VANGUARD GROUP INC | 5143010.00 | $357.23M | 2025-12-31 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 3886308.00 | $253.58M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2946756.00 | $192.28M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2210650.00 | $144.24M | 2026-03-31 |
| Conestoga Capital Advisors, LLC | 1906505.00 | $124.40M | 2026-03-31 |
| STATE STREET CORP | 1889536.00 | $123.29M | 2026-03-31 |
| BlackRock Fund Advisors | 2004916.00 | $120.90M | 2016-12-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-15 | |
| Sell | null | 2026-06-15 | |
| Sell | null | 2026-06-15 | |
| Sell | null | 2026-06-15 | |
| Sell | null | 2026-06-15 | |
| Sell | null | 2026-06-15 | |
| Sell | null | 2026-06-03 | |
| Sell | null | 2026-06-03 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.