RUSH ENTERPRISES INC - CL B (RUSHB) Top Institutional Shareholders
RUSH ENTERPRISES INC - CL B (RUSHB) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $437.69M in RUSHB holdings during the latest filing period.
Dimensional Fund Advisors Lp is currently the largest disclosed institutional shareholder of RUSHB tracked by InsiderSet, reporting ownership valued at approximately $83.19M in its March 31, 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 $90.73M, representing an estimated gain of +9.06% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 81% of the total disclosed RUSHB value among the investors covered in this analysis. Major shareholders include Dimensional Fund Advisors Lp, Gamco Investors, Inc. Et Al, Blackrock, Inc., and several other long-term asset managers with concentrated positions in RUSH ENTERPRISES INC - CL B (RUSHB).
This page ranks the largest institutional RUSHB 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
141
Total Reported Value
$437.69M
Largest Holder
Dimensional Fund Advisors Lp
Largest Position
$83.19M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
157
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Dimensional Fund Advisors Lp | 0.02% | 1,292,777 | $83,189,163 | $90,727,090 | +$7,537,927 | +9.06% | |
| Gamco Investors, Inc. Et Al | 0.68% | 1,065,975 | $68,595,491 | $74,810,126 | +$6,214,635 | +9.06% | |
| Blackrock, Inc. | 0.00% | 585,120 | $37,652,470 | $41,063,722 | +$3,411,252 | +9.06% | |
| Vanguard Capital Management Llc | 0.00% | 574,524 | $36,970,619 | $40,320,094 | +$3,349,475 | +9.06% | |
| Gabelli Funds Llc | 0.23% | 530,500 | $34,137,675 | $37,230,490 | +$3,092,815 | +9.06% | |
| Renaissance Technologies LLC | Jim Simons | 0.04% | 349,547 | $22,493,349 | $24,531,208 | +$2,037,859 | +9.06% |
| Private Management Group Inc | 0.60% | 325,126 | $20,921,858 | $22,817,343 | +$1,895,485 | +9.06% | |
| Vanguard Portfolio Management Llc | 0.00% | 318,934 | $20,523,403 | $22,382,788 | +$1,859,385 | +9.06% | |
| American Century Companies Inc | 0.01% | 240,666 | $15,486,857 | $16,889,940 | +$1,403,083 | +9.06% | |
| State Street Corp | 0.00% | 213,497 | $13,738,532 | $14,983,219 | +$1,244,687 | +9.06% | |
| Geode Capital Management, Llc | 0.00% | 136,104 | $8,755,061 | $9,551,779 | +$796,718 | +9.10% | |
| Vanguard Fiduciary Trust Co | 0.00% | 88,972 | $5,725,348 | $6,244,055 | +$518,707 | +9.06% | |
| Sei Investments Co | 0.00% | 80,479 | $5,178,440 | $5,648,016 | +$469,576 | +9.07% | |
| Bank Of New York Mellon Corp | 0.00% | 72,386 | $4,658,010 | $5,080,049 | +$422,039 | +9.06% | |
| Northern Trust Corp | 0.00% | 69,058 | $4,443,882 | $4,846,490 | +$402,608 | +9.06% | |
| Vista Investment Management | 1.34% | 62,272 | $4,007,234 | $4,370,249 | +$363,015 | +9.06% | |
| Globeflex Capital L P | 0.58% | 59,342 | $3,818,658 | $4,164,622 | +$345,964 | +9.06% | |
| Brooklyn Investment Group | 0.11% | 53,390 | $3,435,647 | $3,746,910 | +$311,263 | +9.06% | |
| Millennium Management Llc | 0.00% | 42,469 | $2,732,880 | $2,980,474 | +$247,594 | +9.06% | |
| Teton Advisors, Llc | 1.85% | 40,800 | $2,625,480 | $2,863,344 | +$237,864 | +9.06% | |
| Goldman Sachs Group Inc | 0.00% | 32,288 | $2,077,733 | $2,265,972 | +$188,239 | +9.06% | |
| Lazard Asset Management Llc | 0.00% | 28,752 | $1,850,191 | $2,017,815 | +$167,624 | +9.06% | |
| Los Angeles Capital Management Llc | 0.01% | 28,511 | $1,834,684 | $2,000,902 | +$166,218 | +9.06% | |
| Nuveen, Llc | 0.00% | 26,313 | $1,693,241 | $1,846,646 | +$153,405 | +9.06% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 24,113 | $1,551,672 | $1,692,250 | +$140,578 | +9.06% | |
| Trexquant Investment Lp | 0.01% | 23,609 | $1,519,239 | $1,656,880 | +$137,641 | +9.06% | |
| Morgan Stanley | 0.00% | 22,768 | $1,465,208 | $1,597,858 | +$132,650 | +9.05% | |
| Qube Research & Technologies Ltd | 0.00% | 22,349 | $1,438,158 | $1,568,453 | +$130,295 | +9.06% | |
| Quantinno Capital Management Lp | 0.00% | 20,834 | $1,340,682 | $1,462,130 | +$121,448 | +9.06% | |
| Jb Capital Partners Lp | 0.23% | 20,418 | $1,310,223 | $1,432,935 | +$122,712 | +9.37% | |
| State Board Of Administration Of Florida Retirement System | 0.00% | 18,901 | $1,216,279 | $1,326,472 | +$110,193 | +9.06% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 18,856 | $1,213,383 | $1,323,314 | +$109,931 | +9.06% | |
| Everhart Financial Group, Inc. | 0.10% | 17,344 | $1,116,086 | $1,217,202 | +$101,116 | +9.06% | |
| Corbyn Investment Management Inc/Md | 0.37% | 17,328 | $1,115,057 | $1,216,079 | +$101,022 | +9.06% | |
| Swiss National Bank | 0.00% | 14,500 | $933,075 | $1,017,610 | +$84,535 | +9.06% | |
| Xtx Topco Ltd | 0.02% | 13,789 | $887,322 | $967,712 | +$80,390 | +9.06% | |
| Captrust Financial Advisors | 0.00% | 12,772 | $821,876 | $896,339 | +$74,463 | +9.06% | |
| Barclays Plc | 0.00% | 12,597 | $810,617 | $884,057 | +$73,440 | +9.06% | |
| Franklin Resources Inc | 0.00% | 11,693 | $752,445 | $820,615 | +$68,170 | +9.06% | |
| Inceptionr Llc | 0.18% | 11,565 | $744,208 | $811,632 | +$67,424 | +9.06% | |
| Bank Of America Corp | 0.00% | 10,584 | $681,080 | $742,785 | +$61,705 | +9.06% | |
| Rhumbline Advisers | 0.00% | 10,562 | $679,784 | $741,241 | +$61,457 | +9.04% | |
| Aqr Capital Management Llc | 0.00% | 10,492 | $675,178 | $736,329 | +$61,151 | +9.06% | |
| Deutsche Bank Ag\ | 0.00% | 10,429 | $671,106 | $731,907 | +$60,801 | +9.06% | |
| Muhlenkamp & Co | Ronald Muhlenkamp | 0.16% | 9,454 | $608,365 | $663,482 | +$55,117 | +9.06% |
| California State Teachers Retirement System | 0.00% | 8,082 | $520,077 | $567,195 | +$47,118 | +9.06% | |
| Alliancebernstein L.P. | 0.00% | 9,114 | $512,754 | $639,621 | +$126,867 | +24.74% | |
| Legal & General Group Plc | 0.00% | 7,849 | $505,084 | $550,843 | +$45,759 | +9.06% | |
| Vanguard Asset Management, Ltd | 0.00% | 6,042 | $388,803 | $424,028 | +$35,225 | +9.06% | |
| Invesco Ltd. | 0.00% | 5,725 | $368,405 | $401,781 | +$33,376 | +9.06% |
Frequently asked questions about RUSHB
Who owns the most RUSHB stock?
The largest holders of RUSHB 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 RUSH ENTERPRISES INC - CL B (RUSHB).
Is RUSHB widely held by superinvestors?
Many widely followed stocks like RUSHB appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly RUSHB 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.