Company · Ownership research

Dorman Products, Inc. DORM

CIK 0000868780

Form 4 transactions dated Nov 1, 2023 to Nov 11, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 73 rows; the complete set is available through the API.

Insider filings on file run through Sep 16, 2026.

Insider purchases & sales

Purchased: $65.78K
Sold: $31.87M

Nov 1, 2023 – Sep 16, 2026
Available records · partial months are marked ·

202510 of 23 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 12, 2025	McKnight John President, Heavy Duty	Sale	$257.60K 2,000 shares sold	18.00% sold Direct holding	▾
Dec 1, 2025	McKnight John President, Heavy Duty	Sale	$640.20K 4,898 shares sold	30.59% sold Direct holding	▾
Oct 31, 2025	Hession David SVP and CFO	Sale	$1.69M 12,493 shares sold	68.90% sold Direct holding	▾
Sep 12, 2025	Bowen Gregory C. VP, Chief Accounting Officer	Sale	$236.56K 1,453 shares sold	23.77% sold Direct holding	▾
Aug 12, 2025	Long Donna M. SVP, CIO	Sale	$181.95K 1,213 shares sold	6.36% sold Direct holding	▾
Jul 28, 2025	Long Donna M. SVP, CIO	Sale	$100.21K 820 shares sold	4.12% sold Direct holding	▾
May 19, 2025	GAVIN JOHN J Director	Sale	$380.44K 2,900 shares sold	26.29% sold Direct holding	▾
Mar 6, 2025	Long Donna M. SVP, CIO	Sale	$96.74K 742 shares sold	3.60% sold Direct holding	▾
Mar 2, 2025	DARBY JEFFERY SVP, Sales and Marketing	Sale	$201.66K 1,534 shares sold	8.87% sold Direct holding	▾
Jan 30, 2025	BERMAN STEVEN L Director	Sale	$1.70M 12,668 shares sold	1.64% sold Direct holding	▾

Showing 23 / 23 record groups in 2025. The complete set is available through the API.

Dorman Products, Inc. · DORM

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 23 of 23 purchase / sale groups and 30 of 73 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"DORM","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.