Who owns Rush Enterprises (RUSHB)
Which tracked institutional funds hold RUSHB, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See RUSHB company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
113 tracked funds added or opened RUSHB while 69 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
RUSHB’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes RUSHB more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in RUSHB divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 358 tracked filers holding RUSHB, 190 increased or opened the position and 189 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in RUSHB between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 15
- WESTWOOD HOLDINGS GROUP INC$61M
- Jupiter Topco LLC$53M
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/$23M
- TimesSquare Capital Management, LLC$13M
- Point72 Asset Management, L.P.$9M
- CASTLEARK MANAGEMENT LLC$8M
Full exits 32
- T. Rowe Price Investment Management, Inc.$107M
- JANUS HENDERSON GROUP PLC$48M
- Pacer Advisors, Inc.$24M
- GW&K Investment Management, LLC$21M
- Harspring Capital Management, LLC$12M
- LORD, ABBETT & CO. LLC$9M
Largest adds
- BlackRock, Inc.$201M
- AMERICAN CENTURY COMPANIES INC$86M
- VICTORY CAPITAL MANAGEMENT INC$57M
- JENNISON ASSOCIATES LLC$50M
- VANGUARD PORTFOLIO MANAGEMENT LLC$35M
- STATE STREET CORP$27M
Largest trims
- FMR LLC$34M
- WELLINGTON MANAGEMENT GROUP LLP$13M
- BALYASNY ASSET MANAGEMENT L.P.$13M
- COOKE & BIELER LP$12M
- PRICE T ROWE ASSOCIATES INC /MD/$12M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$12M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 10,283,041 | $751M | 16.6% | 2026-Q2 |
| FMR LLC trimmed | 7,667,295 | $560M | 12.4% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 3,587,355 | $262M | 5.8% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 3,278,453 | $239M | 5.3% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 3,010,503 | $220M | 4.9% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 2,512,680 | $183M | 4.1% | 2026-Q2 |
| STATE STREET CORP added | 2,430,986 | $177M | 3.9% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 2,012,245 | $147M | 3.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,734,898 | $127M | 2.8% | 2026-Q2 |
| JENNISON ASSOCIATES LLC added | 1,699,609 | $124M | 2.7% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 1,180,198 | $86M | 1.9% | 2026-Q2 |
| GAMCO INVESTORS, INC. ET AL trimmed | 1,052,375 | $81M | 1.8% | 2026-Q2 |
| BECK MACK & OLIVER LLC trimmed | 930,268 | $68M | 1.5% | 2026-Q2 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC added | 898,331 | $66M | 1.5% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 883,808 | $65M | 1.4% | 2026-Q2 |
| WESTWOOD HOLDINGS GROUP INC new | 831,726 | $61M | 1.3% | 2026-Q2 |
| NORTHERN TRUST CORP added | 808,922 | $59M | 1.3% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 789,062 | $58M | 1.3% | 2026-Q2 |
| Jupiter Topco LLC new | 720,395 | $53M | 1.2% | 2026-Q2 |
| Global Alpha Capital Management Ltd. trimmed | 682,458 | $50M | 1.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 598,327 | $44M | 1.0% | 2026-Q2 |
| MORGAN STANLEY added | 555,613 | $41M | 0.9% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 544,197 | $40M | 0.9% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 540,603 | $39M | 0.9% | 2026-Q2 |
| GABELLI FUNDS LLC trimmed | 506,000 | $39M | 0.9% | 2026-Q2 |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. trimmed | 485,729 | $35M | 0.8% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 408,125 | $30M | 0.7% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 383,173 | $28M | 0.6% | 2026-Q2 |
| EULAV Asset Management added | 380,719 | $28M | 0.6% | 2026-Q2 |
| Invesco Ltd. added | 376,728 | $27M | 0.6% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 366,549 | $27M | 0.6% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 359,035 | $26M | 0.6% | 2026-Q2 |
| MUHLENKAMP & CO INC added | 332,332 | $24M | 0.5% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 330,247 | $25M | 0.6% | 2026-Q2 |
| NEW SOUTH CAPITAL MANAGEMENT INC trimmed | 326,808 | $24M | 0.5% | 2026-Q2 |
| MOTCO added | 318,916 | $23M | 0.5% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ new | 313,169 | $23M | 0.5% | 2026-Q2 |
| PRIVATE MANAGEMENT GROUP INC trimmed | 310,191 | $24M | 0.5% | 2026-Q2 |
| COOKE & BIELER LP trimmed | 292,313 | $21M | 0.5% | 2026-Q2 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 283,070 | $21M | 0.5% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 281,496 | $21M | 0.5% | 2026-Q2 |
| ALGERT GLOBAL LLC added | 264,749 | $19M | 0.4% | 2026-Q2 |
| SEI INVESTMENTS CO added | 246,295 | $18M | 0.4% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 220,327 | $16M | 0.4% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 209,516 | $15M | 0.3% | 2026-Q2 |
| Nuveen, LLC added | 205,486 | $15M | 0.3% | 2026-Q2 |
| Allianz Asset Management GmbH added | 198,725 | $13M | 0.3% | 2026-Q2 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed | 189,039 | $14M | 0.3% | 2026-Q2 |
| TimesSquare Capital Management, LLC new | 175,673 | $13M | 0.3% | 2026-Q2 |
| LOOMIS SAYLES & CO L P trimmed | 162,143 | $12M | 0.3% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 157,713 | $12M | 0.3% | 2026-Q2 |
| Clearbridge Investments, LLC trimmed | 155,451 | $11M | 0.3% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC added | 154,647 | $11M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 153,236 | $11M | 0.2% | 2026-Q2 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 145,777 | $11M | 0.2% | 2026-Q2 |
| Legal & General Group Plc added | 144,466 | $11M | 0.2% | 2026-Q2 |
| 12th Street Asset Management Company, LLC trimmed | 144,300 | $11M | 0.2% | 2026-Q2 |
| Granite Investment Partners, LLC added | 143,955 | $11M | 0.2% | 2026-Q2 |
| Creative Planning added | 133,930 | $10M | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 131,320 | $10M | 0.2% | 2026-Q2 |
| First Pacific Advisors, LP | 129,094 | $9M | 0.2% | 2026-Q2 |
| SEB Asset Management AB trimmed | 123,271 | $9M | 0.2% | 2026-Q2 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 122,891 | $9M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 122,150 | $9M | 0.2% | 2026-Q2 |
| UBS Group AG trimmed | 115,970 | $8M | 0.2% | 2026-Q2 |
| CASTLEARK MANAGEMENT LLC added | 113,950 | $8M | 0.2% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 113,431 | $8M | 0.2% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 110,922 | $8M | 0.2% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 106,692 | $8M | 0.2% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 103,327 | $8M | 0.2% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 102,062 | $7M | 0.2% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 91,250 | $7M | 0.1% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 89,167 | $7M | 0.1% | 2026-Q2 |
| MARTINGALE ASSET MANAGEMENT L P trimmed | 82,040 | $6M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 81,316 | $6M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC trimmed | 80,751 | $6M | 0.1% | 2026-Q2 |
| Leith Wheeler Investment Counsel Ltd. added | 78,522 | $6M | 0.1% | 2026-Q2 |
| INTECH INVESTMENT MANAGEMENT LLC added | 77,544 | $6M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 77,411 | $5M | 0.1% | 2026-Q2 |
| PEREGRINE CAPITAL MANAGEMENT LLC trimmed | 75,774 | $6M | 0.1% | 2026-Q2 |
| FIRST SABREPOINT CAPITAL MANAGEMENT LP new | 75,000 | $5M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 70,812 | $5M | 0.1% | 2026-Q2 |
| DENALI ADVISORS LLC trimmed | 70,785 | $5M | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 68,826 | $5M | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND trimmed | 68,736 | $5M | 0.1% | 2026-Q2 |
| Trexquant Investment LP trimmed | 68,224 | $5M | 0.1% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 66,607 | $5M | 0.1% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC trimmed | 66,259 | $5M | 0.1% | 2026-Q2 |
| VISTA INVESTMENT MANAGEMENT trimmed | 62,108 | $5M | 0.1% | 2026-Q2 |
| ROYCE & ASSOCIATES LP added | 61,109 | $4M | 0.1% | 2026-Q2 |
| HITE Hedge Asset Management LLC new | 61,022 | $4M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP added | 60,288 | $4M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 59,166 | $4M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 57,676 | $4M | 0.1% | 2026-Q2 |
| GLOBEFLEX CAPITAL L P trimmed | 54,421 | $4M | 0.1% | 2026-Q2 |
| BRIDGES INVESTMENT MANAGEMENT INC added | 53,726 | $4M | 0.1% | 2026-Q2 |
| JOHNSON INVESTMENT COUNSEL INC trimmed | 52,205 | $4M | 0.1% | 2026-Q2 |
| Kingsview Wealth Management, LLC trimmed | 50,546 | $4M | 0.1% | 2026-Q2 |
| GREAT LAKES ADVISORS, LLC trimmed | 49,573 | $4M | 0.1% | 2026-Q2 |
| Prescott Group Capital Management, L.L.C. | 49,304 | $4M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.