Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in EXPO held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 6.1M | $396.0M | -1.6% | 12.321% | 0.01% |
| 2 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 3.9M | $253.6M | -6.2% | 7.890% | 0.74% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.9M | $192.3M | β | 5.983% | 0.01% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2.2M | $144.2M | β | 4.488% | 0.00% |
| 5 | Conestoga Capital Advisors, LLC | 1.9M | $124.4M | -20.3% | 3.871% | 2.48% |
| 6 | STATE STREET CORP | 1.9M | $123.3M | +1.8% | 3.836% | 0.00% |
| 7 | GENEVA CAPITAL MANAGEMENT LLC | 1.8M | $117.2M | +3.9% | 3.645% | 2.49% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.6M | $107.5M | +3.6% | 3.345% | 0.01% |
| 9 | ROYCE & ASSOCIATES LP | 1.1M | $74.7M | +75.6% | 2.324% | 0.74% |
| 10 | TWO SIGMA INVESTMENTS, LP | 1.1M | $71.9M | +110.3% | 2.236% | 0.06% |
| 11 | MORGAN STANLEY | 1.1M | $69.9M | -7.1% | 2.176% | 0.00% |
| 12 | AQR CAPITAL MANAGEMENT LLC | 981K | $64.0M | +79.1% | 1.992% | 0.03% |
| 13 | FIRST TRUST ADVISORS LP | 965K | $63.0M | +7.4% | 1.959% | 0.04% |
| 14 | DIMENSIONAL FUND ADVISORS LP | 919K | $60.0M | +2.3% | 1.866% | 0.01% |
| 15 | GOLDMAN SACHS GROUP INC | 779K | $50.8M | +63.2% | 1.581% | 0.01% |
| 16 | Neuberger Berman Group LLC | 724K | $47.2M | -51.0% | 1.470% | 0.04% |
| 17 | Resona Asset Management Co.,Ltd. | 691K | $45.1M | +3.5% | 1.403% | 0.22% |
| 18 | NORTHERN TRUST CORP | 664K | $43.3M | -10.3% | 1.348% | 0.01% |
| 19 | WELLS FARGO & COMPANY/MN | 613K | $40.0M | +2.0% | 1.244% | 0.01% |
| 20 | Invesco Ltd. | 572K | $37.3M | -1.7% | 1.162% | 0.01% |
| 21 | BANK OF AMERICA CORP /DE/ | 540K | $35.2M | +0.5% | 1.096% | 0.00% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 524K | $34.2M | +1.5% | 1.064% | 0.01% |
| 23 | MILLENNIUM MANAGEMENT LLC | 520K | $33.9M | +106.3% | 1.056% | 0.02% |
| 24 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 518K | $33.8M | +40.3% | 1.051% | 0.05% |
| 25 | BAMCO INC /NY/ | 497K | $32.4M | +5.5% | 1.008% | 0.10% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in EXPO β a direct measure of their conviction.
Filings activity in EXPO during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new EXPO position in Q1 2026
Institutions that fully closed their EXPO position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 349 | +0.3% | 105.36% | 8.27 pp | $2.96B | 7.3% |
| Q4 2025 | 348 | +1.2% | 113.63% | +0.98 pp | $3.19B | +0.9% |
| Q3 2025 | 344 | 4.7% | 112.65% | 38.70 pp | $3.17B | 26% |
| Q2 2025 | 361 | 4.0% | 151.35% | +22.17 pp | $4.26B | +17% |
| Q1 2025 | 376 | +5.3% | 129.18% | 19.74 pp | $3.63B | 13% |
| Q4 2024 | 357 | +0.0% | 148.92% | 30.56 pp | $4.19B | 17% |
| Q3 2024 | 357 | +2.9% | 179.48% | +16.45 pp | $5.05B | +10% |
| Q2 2024 | 347 | β | 163.03% | β | $4.58B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying EXPO stock.
Based on Q1 2026 13F filings, institutional ownership of Exponent, Inc. stands at 105.4%, held across 349 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of EXPO, with approximately 6,068,812 shares worth $0.40B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of EXPO, including TWO SIGMA INVESTMENTS, LP, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for EXPO is 45 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
60 institutions opened new positions in EXPO during Q1 2026, while 59 fully exited. 101 added to existing positions and 185 trimmed.
EXPO institutional ownership fell by 8.27 percentage points quarter-over-quarter, with a net change of +1 holders.
The top 10 institutions account for 54.2% of all reported 13F value in EXPO, and the top 25 account for 77.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Exponent, Inc. (EXPO) Institutional Ownership