Latest Period
Q1 2026
Security Snapshot
EXPONENT INC - Common Stock (EXPO) Institutional Ownership
CUSIP: 30214U102
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
357
Shares (Excl. Options)
47,120,934
Price
$65.25
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- Security type / class
- Equity / Common Stock
- Symbol
- EXPO on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 47,120,934
- Total 13F value
- $3,075,683,586
- Portfolio coverage rank
- 0%
- Share change
- -368,633
- Value change
- -$33,048,611
- Number of holders
- 357
- Shares outstanding
- 49,196,785
- SEC-reported price per share
- $54.54
- Insider filing price
- $54.54
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- EXPO - EXPONENT INC - Common Stock is tracked under CUSIP 30214U102.
- 357 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 357 to 357 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $3,292,773,929 to $3,075,683,586.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 357 institutions filings for Q1 2026.
Security key
30214U102
Latest holder period
Q1 2026
13F holders
357
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
EXPO full holder history
EXPONENT INC SEC filings
EXPONENT INC company facts
EXPONENT INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 30214U102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
EXPO
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 7.9% | $258,882,829 | 3,886,546 | Kayne Anderson Rudnick Investment Management, LLC | 31 Mar 2026 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.1% | $195,110,224 | 2,990,195 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 5.2% | $168,755,488 | 2,586,291 | Vanguard Capital Management | 31 Mar 2026 | |||
| Conestoga Capital Advisors, LLC | 5.1% | -14% | $175,473,413 | -$31,414,140 | 2,526,244 | -15% | Conestoga Capital Advisors | 31 Dec 2025 |
As of 31 Mar 2026, 357 institutional investors reported holding 47,120,934 shares of EXPONENT INC - Common Stock (EXPO). This represents 96% of the company’s total 49,196,785 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
72%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 12% | 6,068,812 | -1.6% | 0.01% | $395,989,982 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 7.9% | 3,886,308 | -6.2% | 0.74% | $253,581,628 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6% | 2,946,756 | 0% | 0.01% | $192,275,829 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.5% | 2,210,650 | 0% | 0% | $144,244,913 |
| Conestoga Capital Advisors, LLC | 3.9% | 1,906,505 | -20% | 2.5% | $124,399,422 |
| STATE STREET CORP | 3.8% | 1,889,536 | +1.8% | 0% | $123,292,224 |
| GENEVA CAPITAL MANAGEMENT LLC | 3.6% | 1,795,507 | +3.9% | 2.5% | $117,156,829 |
| GEODE CAPITAL MANAGEMENT, LLC | 3.3% | 1,647,614 | +3.6% | 0.01% | $107,521,185 |
| ROYCE & ASSOCIATES LP | 2.3% | 1,144,873 | +76% | 0.74% | $74,702,963 |
| TWO SIGMA INVESTMENTS, LP | 2.2% | 1,101,306 | +110% | 0.06% | $71,860,217 |
| MORGAN STANLEY | 2.2% | 1,072,008 | -7.1% | 0% | $69,948,627 |
| AQR CAPITAL MANAGEMENT LLC | 2% | 981,274 | +79% | 0.03% | $64,028,152 |
| FIRST TRUST ADVISORS LP | 2% | 964,814 | +7.4% | 0.04% | $62,954,113 |
| DIMENSIONAL FUND ADVISORS LP | 1.9% | 918,885 | +2.3% | 0.01% | $59,957,870 |
| GOLDMAN SACHS GROUP INC | 1.6% | 778,596 | +63% | 0.01% | $50,803,409 |
| NEUBERGER BERMAN GROUP LLC | 1.5% | 724,076 | -51% | 0.04% | $47,245,959 |
| Resona Asset Management Co.,Ltd. | 1.4% | 691,256 | +3.5% | 0.22% | $45,102,373 |
| NORTHERN TRUST CORP | 1.3% | 663,765 | -10% | 0.01% | $43,310,668 |
| WELLS FARGO & COMPANY/MN | 1.2% | 612,893 | +2% | 0.01% | $39,991,279 |
| Invesco Ltd. | 1.2% | 572,262 | -1.7% | 0.01% | $37,340,096 |
| BANK OF AMERICA CORP /DE/ | 1.1% | 539,793 | +0.5% | 0% | $35,221,493 |
| RIVERBRIDGE PARTNERS LLC | 1.1% | 533,119 | -3.8% | 0.85% | $34,786,004 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.1% | 524,052 | +1.5% | 0.01% | $34,194,393 |
| MILLENNIUM MANAGEMENT LLC | 1.1% | 520,151 | +106% | 0.03% | $33,939,853 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1.1% | 517,610 | +40% | 0.05% | $33,774,045 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 47,120,934 | $3,075,683,586 | -$33,048,611 | $65.25 | 357 |
| 2025 Q4 | 47,395,460 | $3,292,773,929 | +$21,396,704 | $69.46 | 357 |
| 2025 Q3 | 47,134,807 | $3,275,018,561 | -$141,725,227 | $69.48 | 358 |
| 2025 Q2 | 48,947,044 | $3,656,495,154 | +$140,843,826 | $74.71 | 364 |
| 2025 Q1 | 46,938,157 | $3,805,201,688 | -$48,409,970 | $81.06 | 389 |
| 2024 Q4 | 47,424,091 | $4,226,068,020 | -$12,300,774 | $89.10 | 366 |
| 2024 Q3 | 47,312,533 | $5,452,484,237 | +$26,966,417 | $115.28 | 368 |
| 2024 Q2 | 46,957,567 | $4,466,661,319 | -$16,612,024 | $95.12 | 352 |
| 2024 Q1 | 46,829,755 | $3,875,872,836 | -$7,785,032 | $82.69 | 324 |
| 2023 Q4 | 46,464,028 | $4,090,805,490 | +$15,650,972 | $88.04 | 351 |
| 2023 Q3 | 46,248,445 | $3,958,973,594 | +$9,763,021 | $85.60 | 353 |
| 2023 Q2 | 45,821,114 | $4,276,553,328 | +$7,871,544 | $93.32 | 352 |
| 2023 Q1 | 45,677,482 | $4,553,555,716 | -$46,834,685 | $99.69 | 357 |
| 2022 Q4 | 46,398,422 | $4,598,139,488 | +$7,832,451 | $99.09 | 344 |
| 2022 Q3 | 46,719,062 | $4,097,037,351 | -$22,426,495 | $87.67 | 338 |
| 2022 Q2 | 46,892,120 | $4,289,213,766 | +$28,920,300 | $91.47 | 341 |
| 2022 Q1 | 46,881,129 | $5,064,181,149 | +$19,057,154 | $108.05 | 350 |
| 2021 Q4 | 46,627,453 | $5,440,337,252 | -$47,175,308 | $116.73 | 356 |
| 2021 Q3 | 46,948,826 | $5,311,332,346 | +$54,880,814 | $113.15 | 334 |
| 2021 Q2 | 46,032,665 | $4,105,734,715 | -$48,016,712 | $89.21 | 307 |
| 2021 Q1 | 46,626,652 | $4,543,098,942 | +$5,401,456 | $97.45 | 307 |
| 2020 Q4 | 46,602,638 | $4,195,632,940 | -$17,643,664 | $90.03 | 301 |
| 2020 Q3 | 47,234,948 | $3,402,448,367 | +$24,245,917 | $72.03 | 298 |
| 2020 Q2 | 46,846,159 | $3,789,778,317 | +$66,140,478 | $80.93 | 285 |
| 2020 Q1 | 46,141,337 | $3,317,890,686 | -$81,306,899 | $71.91 | 270 |