EXPONENT INC (EXPO) Institutional Shareholders
EXPONENT INC (EXPO) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $2.69B in EXPO holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of EXPO tracked by InsiderSet, reporting ownership valued at approximately $363.43M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $421.75M, representing an estimated gain of +16.05% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 53% of the total disclosed EXPO value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Kayne Anderson Rudnick Investment Management Llc, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in EXPONENT INC (EXPO).
This page ranks the largest institutional EXPO shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
328
Total Reported Value
$2.69B
Largest Holder
Blackrock, Inc.
Largest Position
$363.43M
Insider Transactions (90d)
5
Latest Filing Quarter
Q2 2026
New Institutional Positions
33
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 6,184,950 | $363,427,646 | $421,751,741 | +$58,324,095 | +16.05% | |
| Kayne Anderson Rudnick Investment Management Llc | 0.73% | 3,995,684 | $234,786,416 | $272,465,692 | +$37,679,276 | +16.05% | |
| Vanguard Portfolio Management Llc | 0.01% | 3,143,624 | $184,719,346 | $214,363,721 | +$29,644,375 | +16.05% | |
| Vanguard Capital Management Llc | 0.00% | 2,180,212 | $128,109,257 | $148,668,656 | +$20,559,399 | +16.05% | |
| State Street Corp | 0.00% | 1,943,646 | $114,208,639 | $132,537,221 | +$18,328,582 | +16.05% | |
| Geode Capital Management, Llc | 0.01% | 1,748,031 | $102,726,594 | $119,198,234 | +$16,471,640 | +16.03% | |
| Geneva Capital Management Llc | 1.89% | 1,405,173 | $82,567,959 | $95,818,747 | +$13,250,788 | +16.05% | |
| Royce & Associates Lp | 0.63% | 1,323,097 | $77,745,180 | $90,221,984 | +$12,476,804 | +16.05% | |
| Conestoga Capital Advisors, Llc | 1.62% | 1,265,704 | $74,372,741 | $86,308,356 | +$11,935,615 | +16.05% | |
| Morgan Stanley | 0.00% | 1,214,003 | $71,334,926 | $82,782,865 | +$11,447,939 | +16.05% | |
| Aqr Capital Management Llc | 0.02% | 1,144,847 | $67,271,185 | $78,067,117 | +$10,795,932 | +16.05% | |
| First Trust Advisors Lp | 0.04% | 1,083,370 | $63,658,823 | $73,875,000 | +$10,216,177 | +16.05% | |
| Two Sigma Investments, Lp | 0.05% | 1,033,426 | $60,724,112 | $70,469,319 | +$9,745,207 | +16.05% | |
| Dimensional Fund Advisors Lp | 0.01% | 927,545 | $54,505,939 | $63,249,294 | +$8,743,355 | +16.04% | |
| Norges Bank | 0.01% | 883,843 | $51,934,615 | $60,269,254 | +$8,334,639 | +16.05% | |
| Resona Asset Management Co.,Ltd. | 0.21% | 754,256 | $44,525,119 | $51,432,717 | +$6,907,598 | +15.51% | |
| Northern Trust Corp | 0.00% | 648,042 | $38,078,949 | $44,189,984 | +$6,111,035 | +16.05% | |
| Wells Fargo & Company/Mn | 0.01% | 567,909 | $33,370,316 | $38,725,715 | +$5,355,399 | +16.05% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.04% | 559,546 | $32,879,643 | $38,155,442 | +$5,275,799 | +16.05% | |
| Invesco Ltd. | 0.00% | 533,719 | $31,361,328 | $36,394,299 | +$5,032,971 | +16.05% | |
| Charles Schwab Investment Management Inc | 0.00% | 527,020 | $30,967,695 | $35,937,494 | +$4,969,799 | +16.05% | |
| Bank Of America Corp | 0.00% | 498,130 | $29,270,119 | $33,967,485 | +$4,697,366 | +16.05% | |
| Jpmorgan Chase & Co | 0.00% | 481,260 | $28,861,951 | $32,817,119 | +$3,955,168 | +13.70% | |
| Goldman Sachs Group Inc | 0.00% | 446,274 | $26,223,072 | $30,431,424 | +$4,208,352 | +16.05% | |
| Bank Of New York Mellon Corp | 0.00% | 415,958 | $24,441,711 | $28,364,176 | +$3,922,465 | +16.05% | |
| Ubs Group Ag | 0.00% | 395,055 | $23,213,431 | $26,938,800 | +$3,725,369 | +16.05% | |
| Point72 Asset Management, L.P. | 0.04% | 394,502 | $23,180,938 | $26,901,091 | +$3,720,153 | +16.05% | |
| Millennium Management Llc | 0.02% | 391,047 | $22,977,922 | $26,665,495 | +$3,687,573 | +16.05% | |
| Bamco Inc | 0.03% | 364,297 | $21,406,092 | $24,841,412 | +$3,435,320 | +16.05% | |
| Vanguard Fiduciary Trust Co | 0.00% | 347,784 | $20,435,788 | $23,715,391 | +$3,279,603 | +16.05% | |
| Raymond James Financial Inc | 0.01% | 323,515 | $19,009,736 | $22,060,488 | +$3,050,752 | +16.05% | |
| Roffman Miller Associates Inc | 0.86% | 280,267 | $16,468,515 | $19,111,407 | +$2,642,892 | +16.05% | |
| Envestnet Asset Management Inc | 0.00% | 266,615 | $15,666,283 | $18,180,477 | +$2,514,194 | +16.05% | |
| Fenimore Asset Management Inc | 0.32% | 264,577 | $15,546,545 | $18,041,506 | +$2,494,961 | +16.05% | |
| Nuveen, Llc | 0.00% | 244,021 | $14,338,643 | $16,639,792 | +$2,301,149 | +16.05% | |
| Qube Research & Technologies Ltd | 0.02% | 234,967 | $13,806,661 | $16,022,400 | +$2,215,739 | +16.05% | |
| Trexquant Investment Lp | 0.08% | 212,179 | $12,467,638 | $14,468,486 | +$2,000,848 | +16.05% | |
| Voloridge Investment Management, Llc | 0.05% | 211,483 | $12,426,741 | $14,421,026 | +$1,994,285 | +16.05% | |
| Balyasny Asset Management L.P. | 0.02% | 206,154 | $12,113,609 | $14,057,641 | +$1,944,032 | +16.05% | |
| Fifth Third Bancorp | 0.02% | 197,498 | $11,604,994 | $13,467,389 | +$1,862,395 | +16.05% | |
| Mackenzie Financial Corp | 0.01% | 191,175 | $11,233,443 | $13,036,223 | +$1,802,780 | +16.05% | |
| Principal Financial Group Inc | 0.01% | 182,637 | $10,731,749 | $12,454,017 | +$1,722,268 | +16.05% | |
| Montanaro Asset Management Ltd | 3.32% | 179,089 | $10,523,270 | $12,212,079 | +$1,688,809 | +16.05% | |
| Capital Fund Management S.A. | 0.07% | 175,828 | $10,331,653 | $11,989,711 | +$1,658,058 | +16.05% | |
| Sei Investments Co | 0.01% | 174,775 | $10,270,804 | $11,917,907 | +$1,647,103 | +16.04% | |
| Bli - Banque De Luxembourg Investments | 0.34% | 162,300 | $9,716,719 | $11,067,237 | +$1,350,518 | +13.90% | |
| Rhumbline Advisers | 0.01% | 164,027 | $9,638,201 | $11,185,001 | +$1,546,800 | +16.05% | |
| D. E. Shaw & Co., Inc. | 0.01% | 163,892 | $9,630,294 | $11,175,795 | +$1,545,501 | +16.05% | |
| Man Group Plc | 0.02% | 160,212 | $9,414,057 | $10,924,856 | +$1,510,799 | +16.05% | |
| Royal Bank Of Canada | 0.00% | 142,677 | $8,384,000 | $9,729,145 | +$1,345,145 | +16.04% |
Frequently asked questions about EXPO
Who owns the most EXPO stock?
The largest holders of EXPO are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for EXPONENT INC (EXPO).
Is EXPO widely held by superinvestors?
Many widely followed stocks like EXPO appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly EXPO is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.