Exponent, Inc.
Exponent, Inc. (EXPO) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · EXPO · as of Sep 30, 2025
Ownership Breakdown
364
Institutional Holders
▼ 9 vs Q2
$3.28B
Total Inst. Value
▼ $382.86M vs Q2
48.51M
Shares Outstanding
freeFloat 98.88%
47.14M
13F Shares Held
▼ 1.83M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
EXPO largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. services-management consulting services | 6.07M | 11.84% | 11.84% | $421.65B | Nov 12, 2025 | ▼ 8.1K |
VANGUARD GROUP INC services-management consulting services | 5.25M | 10.25% | 10.25% | $364.82B | Nov 7, 2025 | ▼ 68.9K |
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC services-management consulting services | 4.49M | 8.76% | 8.76% | $311.95B | Nov 13, 2025 | ▼ 301.1K |
CONESTOGA CAPITAL ADVISORS, LLC services-management consulting services | 2.36M | 4.61% | 4.61% | $164.06B | Oct 24, 2025 | ▼ 344.6K |
GENEVA CAPITAL MANAGEMENT LLC services-management consulting services | 1.86M | 3.63% | 3.63% | $129.14B | Nov 13, 2025 | ▼ 19.1K |
STATE STREET CORP services-management consulting services | 1.86M | 3.63% | 3.63% | $129.06B | Nov 14, 2025 | ▼ 11.6K |
GEODE CAPITAL MANAGEMENT, LLC services-management consulting services | 1.59M | 3.11% | 3.11% | $110.71B | Nov 12, 2025 | ▼ 4.3K |
NEUBERGER BERMAN GROUP LLC services-management consulting services | 1.56M | 3.05% | 3.05% | $108.61B | Nov 12, 2025 | ▼ 43.2K |
MORGAN STANLEY services-management consulting services | 1.11M | 2.17% | 2.17% | $77.42B | May 27, 2026 | ▲ 85.9K |
DIMENSIONAL FUND ADVISORS LP services-management consulting services | 896.0K | 1.75% | 1.75% | $62.25B | Nov 12, 2025 | ▼ 10.6K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
20
Increased
+2.34M shares1
New Positions
first time holders28
Decreased
−1.96M shares0
Sold Out
fully exitedNet shares change (top 50)
+385.8K
+2.34M / −1.96M
Net new holders
-7
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
EXPO insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Lindstrom Carol director | Jun 4, 2026 | Award | 2,859 | — | — | 2.9K | Form 4 ↗ |
Brown George H. director | Jun 4, 2026 | Award | 2,859 | — | — | 2.9K | Form 4 ↗ |
RICHARDSON KAREN A director | Jun 4, 2026 | Award | 2,859 | — | — | 2.9K | Form 4 ↗ |
Zumwalt Debra director | Jun 4, 2026 | Award | 2,859 | — | — | 2.9K | Form 4 ↗ |
James Bradley A Group Vice President | May 26, 2026 | Sale | 2,000 | $57.47 | $114.9K | 1.1K | Form 4 ↗ |
Reiss Richard Group Vice President | May 19, 2026 | Sale | 1,672 | $58.65 | $98.1K | 2.3K | Form 4 ↗ |
Corrigan Catherine President & CEO | May 15, 2026 | Sale | 1,827 | $54.06 | $98.8K | 105.8K | Form 4 ↗ |
Corrigan Catherine President & CEO | May 15, 2026 | Sale | 2,367 | $54.06 | $128.0K | 105.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Exponent, Inc. (EXPO) is primarily owned by institutional investors, who hold approximately 97.2% of total shares outstanding. Company insiders own approximately 1.12%, while retail and public investors account for the remaining 1.72%.
The largest institutional shareholder of Exponent, Inc. is BLACKROCK, INC., holding approximately 6.07 million shares — equal to 11.84% of outstanding shares — as of September 30, 2025.
A total of 364 institutional investors currently hold EXPO stock, with a combined institutional value of approximately $3.28 billion as of the most recent 13F filing period.
Frequently asked questions
EXPO ownershipExponent, Inc. (EXPO) is primarily owned by institutional investors, who hold approximately 97.2% of shares. The largest shareholder is BLACKROCK, INC. with a 11.84% stake. Company insiders hold 1.12%. Data sourced from SEC Form 13F as of September 30, 2025.