DORM · Dorman Products, Inc. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 329 13F filersWho Holds DORM
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 329 filers, like-for-like change +8.6%; actively managed books +12.3%; index-like books +2.8%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 45.9% | 169 | +7.1% |
| Adviser | 6.9% | 9 | +15.8% |
| Bank | 9.5% | 22 | +2.3% |
| Insurer | 0.6% | 2 | -1.8% |
| Broker-dealer | 0.1% | 1 | -36.1% |
| Registered fund | 0.0% | 1 | -8.5% |
| Benefit plan | 0.5% | 6 | -34.3% |
| Non-US | 2.7% | 9 | -28.8% |
| Holding company | 22.7% | 8 | +6.6% |
| Exempt adviser | 0.0% | 0 | -100.0% |
| Unknown | 11.2% | 102 | +43.2% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 37.5% | 39 | +2.8% |
| Systematic-like | 1.0% | 13 | -60.7% |
| Concentrated | 3.3% | 54 | +530.2% |
| Diversified active | 58.3% | 223 | +10.7% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 60.8% | 217 | +3.6% |
| Medium turnover | 23.2% | 65 | +27.6% |
| High turnover | 1.5% | 21 | -51.8% |
| Unknown | 14.5% | 26 | +20.1% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 13.7% | 26 | +18.3% |
| Medium horizon | 17.0% | 48 | +1.5% |
| Long horizon | 64.4% | 238 | +6.6% |
| Unknown | 4.9% | 17 | +44.1% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 5.2% | 69 | +103.7% |
| $1B to $10B | 12.0% | 94 | +72.1% |
| $10B to $100B | 16.7% | 98 | -2.7% |
| $100B or more | 66.0% | 68 | +0.9% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 4.7% | 95 | -0.9% |
| Pooled investment vehicles | 1.3% | 12 | -50.6% |
| Registered funds and BDCs | 27.9% | 22 | +1.8% |
| Pension and profit sharing plans | 0.1% | 3 | +2.4% |
| Insurance companies | 0.1% | 3 | -13.5% |
| Charitable organizations | 0.0% | 1 | new |
| Governments and sovereign funds | 3.0% | 7 | +269.8% |
| Banks and thrifts | 0.0% | 1 | -8.8% |
| Other investment advisers | 0.1% | 5 | -11.2% |
| Other | 0.1% | 1 | -3.8% |
| Diversified | 8.8% | 19 | +24.2% |
| Unknown | 54.1% | 160 | +9.8% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 5.3% | 23 | -27.8% |
| Private equity funds | 1.9% | 9 | +19.6% |
| Venture capital funds | 0.0% | 1 | +2.9% |
| Real estate funds | 0.0% | 4 | +8.4% |
| Securitized asset funds | 0.2% | 1 | -1.2% |
| Other private funds | 13.2% | 17 | +1.3% |
| Mixed private funds | 0.2% | 2 | -55.1% |
| Private funds, type not stated | 0.3% | 2 | +309.3% |
| No private funds | 24.8% | 110 | +21.5% |
| Unknown | 54.1% | 160 | +10.4% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 93.9% | 292 | +10.5% |
| Outside the US | 6.1% | 37 | -17.6% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 3 holders with no observed 2026-03-31 13F and 1 holder with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
329 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 22.7% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies DORM's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | ADUS Addus HomeCare Corp | 7 |
| 2 | KWR Quaker Chemical Corp | 6 |
| 3 | JBTM JBT MAREL Corp | 6 |
| 4 | PLUS Eplus Inc | 5 |
| 5 | CSW Csw Industrials, Inc. | 7 |
| 6 | SITE SiteOne Landscape Supply, Inc. | 6 |
| 7 | OLLI Ollie's Bargain Outlet Holdings, Inc. | 6 |
| 8 | MGRC Mcgrath Rentcorp | 5 |
| 9 | VCEL Vericel Corp | 5 |
| 10 | LFUS Littelfuse Inc | 9 |
Shareholder Targets
13F filers that own its peers but not DORM, quarter ended Jun 30, 2026Found through its holder-overlap peers: ADUS, KWR, JBTM, PLUS, CSW, SITE, OLLI, MGRC, VCEL, LFUS, JJSF, BWMN, KFY, AAON, CRAI, OBK, CVCO, EXPO, AWI, WDFC. 1,133 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC Registered adviser, Diversified active | $1,192,135,428 9 held | EXPO, SITE, WDFC |
| 2 | WASATCH ADVISORS LP Registered adviser, Diversified active | $1,038,568,274 5 held | OLLI, AAON, CSW |
| 3 | Capital World Investors Adviser, Diversified active | $880,507,293 6 held | CVCO, CSW, AAON |
| 4 | Conestoga Capital Advisors, LLC Adviser, Diversified active | $592,946,240 8 held | CSW, AAON, SITE |
| 5 | River Road Asset Management, LLC Registered adviser, Diversified active | $490,716,481 3 held | MGRC, PLUS, AWI |
| 6 | Capital Research Global Investors Adviser, Diversified active | $445,501,945 6 held | OLLI, ADUS, MGRC |
| 7 | VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. Non-US, Diversified active | $425,055,563 1 held | LFUS |
| 8 | BAMCO INC /NY/ Registered adviser, Concentrated | $418,364,586 4 held | SITE, JBTM, AAON |
| 9 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Registered adviser, Diversified active | $409,959,493 6 held | LFUS, VCEL, JBTM |
| 10 | TWO SIGMA INVESTMENTS, LP Registered adviser, Systematic-like | $364,001,840 16 held | AWI, EXPO, WDFC |
Fund Ownership of DORM by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 25.80% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 4.60% | 1,365,516 |
| Index ETFs | 21.20% | 6,290,469 |
| Active ETFs | 1.32% | 392,694 |
| Active funds | 20.93% | 6,211,919 |
| Unclassified | 0.12% | 35,949 |
| All registered funds | 48.18% | 14,296,547 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $556,542,292 | 14.33% | 4,078,727 | Shares | 2026-08-07 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $209,125,862 | 5.39% | 1,532,619 | Shares | 2026-08-13 | |
| Mega MORGAN STANLEY Holding company | $197,233,828 | 5.08% | 1,445,466 | Shares | 2026-08-13 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $165,539,093 | 4.26% | 1,213,185 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $156,062,777 | 4.02% | 1,143,736 | Shares | 2026-09-22 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $154,947,979 | 3.99% | 1,135,566 | Shares | 2026-08-11 | |
| Small KTF INVESTMENTS, LLC | $118,911,126 | 3.06% | 871,463 | Shares | 2026-08-10 | |
| Large ROYCE & ASSOCIATES LP Registered adviser | $112,464,273 | 2.90% | 824,216 | Shares | 2026-08-14 | |
| Mega JENNISON ASSOCIATES LLC Registered adviser | $111,187,237 | 2.86% | 814,857 | Shares | 2026-08-03 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $101,671,759 | 2.62% | 745,121 | Shares | 2026-08-12 | |
| Mega Invesco Ltd. Adviser | $97,333,330 | 2.51% | 713,326 | Shares | 2026-08-14 | |
| Mid Channing Capital Management, LLC Registered adviser | $90,782,777 | 2.34% | 665,319 | Shares | 2026-07-29 | |
| Mid REINHART PARTNERS, LLC. Registered adviser | $85,398,501 | 2.20% | 696,562 | Shares | 2026-10-09 | |
| Mega T. Rowe Price Investment Management, Inc. Adviser | $66,945,781 | 1.72% | 490,625 | Shares | 2026-08-14 | |
| Large GW&K Investment Management, LLC Registered adviser | $65,718,413 | 1.69% | 481,630 | Shares | 2026-08-12 | |
| Mega VICTORY CAPITAL MANAGEMENT INC Registered adviser | $64,458,024 | 1.66% | 472,393 | Shares | 2026-08-07 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $63,576,966 | 1.64% | 465,936 | Shares | 2026-08-14 | |
| Mid GENEVA CAPITAL MANAGEMENT LLC Registered adviser | $61,014,844 | 1.57% | 447,159 | Shares | 2026-08-06 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $57,221,534 | 1.47% | 419,359 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $56,648,987 | 1.46% | 415,163 | Shares | 2026-08-13 | |
| Mega FMR LLC Holding company | $51,043,759 | 1.31% | 374,084 | Shares | 2026-08-13 | |
| Mega WELLINGTON MANAGEMENT GROUP LLP Holding company | $47,492,103 | 1.22% | 348,055 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $46,997,200 | 1.21% | 344,428 | Shares | 2026-08-14 | |
| Large WESTFIELD CAPITAL MANAGEMENT CO LP Registered adviser | $45,138,888 | 1.16% | 330,809 | Shares | 2026-08-12 | |
| Large LOOMIS SAYLES & CO L P Registered adviser | $44,193,835 | 1.14% | 323,883 | Shares | 2026-08-14 | |
| Large FULLER & THALER ASSET MANAGEMENT, INC. Registered adviser | $39,962,793 | 1.03% | 292,875 | Shares | 2026-08-12 | |
| Mid AMERICAN CAPITAL MANAGEMENT INC Adviser | $38,785,093 | 1.00% | 284,244 | Shares | 2026-08-14 | |
| Mega NORGES BANK Non-US | $37,960,390 | 0.98% | 278,200 | Shares | 2026-08-12 | |
| Large SILVERCREST ASSET MANAGEMENT GROUP LLC Registered adviser | $36,932,102 | 0.95% | 270,664 | Shares | 2026-08-14 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $36,903,994 | 0.95% | 270,458 | Shares | 2026-07-29 | |
| Large BROWN ADVISORY INC | $36,377,432 | 0.94% | 266,599 | Shares | 2026-08-14 | |
| Mid Bragg Financial Advisors, Inc | $36,301,567 | 0.93% | 266,043 | Shares | 2026-08-12 | |
| Small SOUTHERNSUN ASSET MANAGEMENT, LLC | $35,938,610 | 0.93% | 263,383 | Shares | 2026-08-14 | |
| Large Mawer Investment Management Ltd. Registered adviser | $35,190,045 | 0.91% | 257,897 | Shares | 2026-08-07 | |
| Large Fiera Capital Corp Non-US | $34,597,033 | 0.89% | 253,551 | Shares | 2026-08-07 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $29,541,015 | 0.76% | 216,497 | Shares | 2026-08-14 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $25,219,644 | 0.65% | 184,827 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $23,763,449 | 0.61% | 174,155 | Shares | 2026-08-13 | |
| Mega ROYAL BANK OF CANADA Bank | $22,832,311 | 0.59% | 167,331 | Shares | 2026-08-14 | |
| Mega Bank of New York Mellon Corp Bank | $22,597,615 | 0.58% | 165,611 | Shares | 2026-08-06 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $22,242,441 | 0.57% | 163,008 | Shares | 2026-09-23 | |
| Large First Eagle Investment Management, LLC Registered adviser | $21,646,700 | 0.56% | 158,642 | Shares | 2026-08-24 | |
| Mid Tributary Capital Management, LLC Registered adviser | $20,329,549 | 0.52% | 148,989 | Shares | 2026-07-23 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $20,044,368 | 0.52% | 146,899 | Shares | 2026-08-04 | |
| Mid Leeward Investments, LLC - MA Registered adviser | $20,004,798 | 0.52% | 146,609 | Shares | 2026-07-30 | |
| Large BESSEMER GROUP INC | $13,208,358 | 0.34% | 96,800 | Shares | 2026-08-12 | |
| Mid KENNEDY CAPITAL MANAGEMENT LLC Registered adviser | $12,900,528 | 0.33% | 94,544 | Shares | 2026-08-14 | |
| Large Public Sector Pension Investment Board Non-US | $12,749,615 | 0.33% | 93,438 | Shares | 2026-08-13 | |
| Small Pembroke Management, LTD Registered adviser | $11,398,896 | 0.29% | 83,539 | Shares | 2026-08-13 | |
| Mega NORDEA INVESTMENT MANAGEMENT AB Non-US | $11,225,195 | 0.29% | 82,266 | Shares | 2026-08-05 | |
| Large VOLORIDGE INVESTMENT MANAGEMENT, LLC Registered adviser | $11,134,729 | 0.29% | 81,603 | Shares | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $10,611,032 | 0.27% | 77,765 | Shares | 2026-08-14 | |
| Mid NICHOLAS COMPANY, INC. Registered adviser | $10,168,117 | 0.26% | 74,519 | Shares | 2026-08-05 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $9,036,810 | 0.23% | 66,228 | Shares | 2026-08-12 | |
| Mega JPMORGAN CHASE & CO Bank | $8,901,586 | 0.23% | 65,237 | Shares | 2026-08-12 | |
| Mega Legal & General Group Plc | $8,620,091 | 0.22% | 63,174 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $8,579,839 | 0.22% | 62,879 | Shares | 2026-08-11 | |
| Small Bridge City Capital, LLC Registered adviser | $7,994,332 | 0.21% | 58,588 | Shares | 2026-08-11 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $7,928,017 | 0.20% | 58,102 | Shares | 2026-08-11 | |
| Large TEACHER RETIREMENT SYSTEM OF TEXAS Benefit plan | $7,634,241 | 0.20% | 55,949 | Shares | 2026-08-14 | |
| Small Roubaix Capital, LLC Registered adviser | $7,597,808 | 0.20% | 55,682 | Shares | 2026-08-10 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $7,292,294 | 0.19% | 53,443 | Shares | 2026-08-13 | |
| Mega SEI INVESTMENTS CO | $7,044,912 | 0.18% | 51,630 | Shares | 2026-08-14 | |
| Mega Swiss National Bank | $7,027,175 | 0.18% | 51,500 | Shares | 2026-08-11 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $6,820,453 | 0.18% | 49,985 | Shares | 2026-08-14 | |
| Mega D. E. Shaw & Co., Inc. | $6,503,479 | 0.17% | 47,662 | Shares | 2026-08-14 | |
| Mega AMERICAN CENTURY COMPANIES INC | $5,690,237 | 0.15% | 41,702 | Shares | 2026-08-12 | |
| Mid HARBOR CAPITAL ADVISORS, INC. Registered adviser | $5,531,546 | 0.14% | 40,539 | Shares | 2026-08-07 | |
| Mid KORNITZER CAPITAL MANAGEMENT INC /KS Registered adviser | $5,466,869 | 0.14% | 40,065 | Shares | 2026-07-31 | |
| Large Quantinno Capital Management LP Registered adviser | $5,398,371 | 0.14% | 39,563 | Shares | 2026-08-13 | |
| Large STATE OF WISCONSIN INVESTMENT BOARD Benefit plan | $5,306,267 | 0.14% | 38,888 | Shares | 2026-08-14 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $5,244,865 | 0.14% | 38,438 | Shares | 2026-08-14 | |
| Mid Ruffer LLP Registered adviser | $5,044,283 | 0.13% | 36,968 | Shares | 2026-07-30 | |
| Large NATIXIS ADVISORS, LLC Registered adviser | $4,980,152 | 0.13% | 36,498 | Shares | 2026-08-14 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $4,953,271 | 0.13% | 36,301 | Shares | 2026-08-14 | |
| Mid Granite Investment Partners, LLC Registered adviser | $4,937,033 | 0.13% | 36,182 | Shares | 2026-08-07 | |
| Mid ALGERT GLOBAL LLC Registered adviser | $4,879,452 | 0.13% | 35,760 | Shares | 2026-08-13 | |
| Mid FIRST NATIONAL BANK OF OMAHA | $4,847,932 | 0.12% | 35,529 | Shares | 2026-08-07 | |
| Mid RICE HALL JAMES & ASSOCIATES, LLC Registered adviser | $4,777,114 | 0.12% | 35,010 | Shares | 2026-08-07 | |
| Mega Russell Investments Group, Ltd. | $4,702,201 | 0.12% | 34,461 | Shares | 2026-08-06 | |
| Large Squarepoint Ops LLC Registered adviser | $4,686,102 | 0.12% | 34,343 | Shares | 2026-08-14 | |
| Large Corient Private Wealth LLC Registered adviser | $4,649,533 | 0.12% | 34,075 | Shares | 2026-08-27 | |
| Small Summit Creek Advisors LLC Registered adviser | $4,575,850 | 0.12% | 33,535 | Shares | 2026-08-07 | |
| Mega RAYMOND JAMES FINANCIAL INC | $4,458,912 | 0.11% | 32,678 | Shares | 2026-08-14 | |
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $4,236,772 | 0.11% | 31,050 | Shares | 2026-08-06 | |
| Mid Sterling Capital Management LLC Registered adviser | $4,154,356 | 0.11% | 30,446 | Shares | 2026-07-28 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $3,993,618 | 0.10% | 29,268 | Shares | 2026-08-24 | |
| Mega DEUTSCHE BANK AG\ Non-US | $3,990,069 | 0.10% | 29,242 | Shares | 2026-08-07 | |
| Large TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY | $3,902,878 | 0.10% | 28,603 | Shares | 2026-08-12 | |
| Small Long Road Investment Counsel, LLC Registered adviser | $3,854,712 | 0.10% | 28,250 | Shares | 2026-08-14 | |
| Large PRUDENTIAL FINANCIAL INC Insurer | $3,840,385 | 0.10% | 28,145 | Shares | 2026-08-12 | |
| Mid Linden Thomas Advisory Services, LLC Registered adviser | $3,691,976 | 0.10% | 30,114 | Shares | 2026-10-19 | |
| Mega JONES FINANCIAL COMPANIES LLLP | $3,524,093 | 0.09% | 25,827 | Shares | 2026-08-14 | |
| Mega VANGUARD ASSET MANAGEMENT, Ltd | $3,476,882 | 0.09% | 25,481 | Shares | 2026-08-13 | |
| Small Aurora Investment Counsel Registered adviser | $3,160,864 | 0.08% | 23,165 | Shares | 2026-08-10 | |
| Large Cerity Partners LLC Registered adviser | $3,115,562 | 0.08% | 22,833 | Shares | 2026-08-14 | |
| Mid XTX Topco Ltd | $3,098,779 | 0.08% | 22,710 | Shares | 2026-08-14 | |
| Large CANADA LIFE ASSURANCE Co | $3,090,319 | 0.08% | 22,648 | Shares | 2026-08-13 | |
| Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM | $2,997,260 | 0.08% | 21,966 | Shares | 2026-07-23 | |
| Small CLARK ESTATES INC/NY | $2,865,450 | 0.07% | 21,000 | Shares | 2026-08-05 |
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