As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Dorman Products Inc. The largest reported stake is Steven L. Berman's, at 6.9%. 4 filings are on record since November 12, 2025 (Schedule 13D/A, November 12, 2025).
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Key facts
- · Holder: Vanguard Portfolio Management · Percent: 5.06% · SCHEDULE 13G
- · Holder: The Vanguard Group · Percent: 0% · SCHEDULE 13G/A
- · Holder: Marc H. Berman · Percent: 5.1% · SCHEDULE 13G/A
- · Holder: Steven L. Berman · Percent: 6.9% · SCHEDULE 13D/A
Dorman Products Inc has 4 Schedule 13D or 13G filings on record since 2025-11-12. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 6.9% | 2,096,274 | SCHEDULE 13D/A, 2025-11-12 | 2025-10-24 | |
| 5.1% | 1,544,894 | SCHEDULE 13G/A, 2026-02-09 | 2025-12-31 | |
| Vanguard Portfolio Management | 5.06% | 1,528,639 | SCHEDULE 13G, 2026-04-29 | 2026-03-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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More on Dorman Products Inc and the records around it.
Dorman Products Inc elsewhere on the record
Companies that share a holder
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
- The Vanguard Group also filed stake reports on 2384 other companies: BellRing Brands, Inc. (Sep 2026), CAL-MAINE FOODS INC (Sep 2026), FTAI Aviation Ltd. (Sep 2026)
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Purpose of Transaction (Item 4)
Steven L. Berman
Item 4 is hereby amended and supplemented by adding the following: The shares of Common Stock reported herein as beneficially owned by the Reporting Person were acquired by the Reporting Person for investment purposes. As Non-Executive Chairman and a member of the board of directors (the "Board") of the Issuer, the Reporting Person will regularly consider potential actions and transactions that may be advantageous to the Issuer, including possible mergers, acquisitions, reorganizations or other material changes in the business, corporate structure, management, policies, governing instruments, securities or regulatory or reporting obligations of the Issuer. As previously disclosed, on December 13, 2024, the Reporting Person (in his capacity as co-trustee for various family trusts), together with Sharyn Berman and Marc Berman (each in their capacity as trustee or co-trustee for various family trusts), entered into a Rule 10b5-1 trading plan (the "December 2024 10b5-1 Plan") with a broker to manage the sale of up to an aggregate of 540,000 shares of the Issuer's Common Stock, which were owned by family trusts. On September 11, 2025, the Reporting Person (both in his individual capacity and in his capacity as co-trustee for various family trusts) together with Sharyn Berman and Marc Berman (each in their capacity as trustee or co-trustee for various family trusts), entered into a Rule 10b5-1 trading Plan (the "September 2025 10b5-1 Plan" and, together with the December 2024 …The first part of Item 4 of the SCHEDULE 13D/A filed 2025-11-12; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-12 | Steven L. Berman | 6.9% | SCHEDULE 13D/A |
| 2026-02-09 | Marc H. Berman | 5.1% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-29 | Vanguard Portfolio Management | 5.06% | SCHEDULE 13G |
Questions about who owns Dorman Products Inc
Who owns Dorman Products Inc?
On this page, 3 holders' latest ownership filings report 5% or more of Dorman Products Inc: Steven L. Berman (6.9%, Schedule 13D/A, filed 2025-11-12), Marc H. Berman (5.1%, Schedule 13G/A, filed 2026-02-09) and Vanguard Portfolio Management (5.06%, Schedule 13G, filed 2026-04-29).
Who are the largest shareholders of Dorman Products Inc?
By the share each holder's latest filing reports, the largest holders of Dorman Products Inc on this page are Steven L. Berman (6.9%), Marc H. Berman (5.1%) and Vanguard Portfolio Management (5.06%).
When did Steven L. Berman buy into Dorman Products Inc?
The filings give report dates, not purchase dates. The earliest filing from Steven L. Berman on this page is the Schedule 13D/A, filed 2025-11-12, reporting 6.9%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 4 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.