Nasdaq · CIK 0000868780
DORM Dorman Products, Inc.
Insider trading from SEC Form 4. Last filing 27 d ago. Close $120.40 on Oct 9, 2026, +20% from the 52-week low and -24% from the high.
Dorman Products, Inc. (DORM) has 123 SEC Form 4 filings on file from 18 insiders, the latest filed on Sep 16, 2026. In the last 90 days insiders made 0 open-market buys worth $0 and 2 open-market sells worth $611k, net -$611k.
32 open-market trades have been scored at DORM. The newest: Donna M. Long (SVP, CIO) sold $99k of stock on Aug 17, 2026, filed Aug 18, 2026, scored 13 (weak), under a 10b5-1 plan. The largest of the 32 shown: Steven L Berman (director) sold $3.4M on Jan 24, 2025, scored 30 (weak), under a 10b5-1 plan. 2 insiders sold within 14 days of each other around Aug 17, 2026.
DORM closed at $120.40 on Oct 9, 2026, 20% above its 52-week low and 24% below its 52-week high.
25 Form 144 notices of planned sales are on file, the latest filed Aug 17, 2026.
Last 90 days
Net insider value
-$611k
more sold than bought
Buys
0
$0 by 0 insiders
Sells
2
$611k by 2 insiders
Insiders on file
18
with a Form 4 at this company
Price and insider trades, last year
DORMOct 9, 2026 · close 120.40
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Dorman Products, Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 13Weak | Donna M. Long SVP, CIO sell | $99k 734 shares | -4% | +33% from low-20% from high | |
| 36Weak | Gregory C. Bowen VP, Chief Accounting Officer sell | $512k 3,531 shares | -40% | +41% from low-15% from high | |
| 5Weak | Donna M. Long SVP, CIO sell | $98k 947 shares | -5% | 0% from low-39% from high | |
| 5Weak | Donna M. Long SVP, CIO sell | $100k 812 shares | -4% | +15% from low-25% from high | |
| 38Weak | John McKnight President, Heavy Duty sell | $258k 2,000 shares | -18% | +18% from low-23% from high | |
| 35Weak | John McKnight President, Heavy Duty sell | $640k 4,898 shares | -31% | +21% from low-21% from high | |
| 67Notable | David Hession SVP and CFO sell | $1.7M 12,493 shares | -69% | +24% from low-19% from high | |
| 18Weak | Gregory C. Bowen VP, Chief Accounting Officer sell | $237k 1,453 shares | -24% | +49% from low-3% from high | |
| 7Weak | Donna M. Long SVP, CIO sell | $182k 1,213 shares | -6% | +38% from low0% from high | |
| 5Weak | Donna M. Long SVP, CIO sell | $100k 820 shares | -4% | +13% from low-14% from high | |
| 41Moderate | John J Gavin director sell | $380k 2,900 shares | -26% | +20% from low-9% from high | |
| 13Weak | Donna M. Long SVP, CIO sell | $97k 742 shares | -4% | - | |
| 35Weak | Jeffery Darby SVP, Sales and Marketing sell | $202k 1,534 shares | -9% | - | |
| 30Weak | Steven L Berman director sell | $1.7M 12,668 shares | -2% | - | |
| 30Weak | Steven L Berman director sell | $2.1M 15,594 shares | -2% | - | |
| 30Weak | Steven L Berman director sell | $3.4M 25,651 shares | -3% | - | |
| 26Weak | Steven L Berman director sell | $686k 5,266 shares | -1% | - | |
| 28Weak | Steven L Berman director sell | $827k 6,317 shares | -1% | - | |
| 25Weak | Steven L Berman director sell | $661k 5,119 shares | -1% | - | |
| 19Weak | Steven L Berman director sell | $310k 2,486 shares | -0% | - | |
| 11Weak | Steven L Berman director sell | $35k 285 shares | -0% | - | |
| 20Weak | Steven L Berman director sell | $349k 2,633 shares | -0% | - | |
| 5Weak | Steven L Berman director sell | $18k 130 shares | -0% | - | |
| 38Weak | Steven L Berman director sell | $1.5M 11,351 shares | -1% | - | |
| 65Notable | John McKnight President, Heavy Duty sell | $1.1M 8,185 shares | -54% | - | |
| 42Moderate | Eric Luftig Senior Vice President, Product sell | $463k 3,278 shares | -36% | - | |
| 48Moderate | Joseph P. Braun SVP and General Counsel sell | $855k 6,286 shares | -31% | - | |
| 47Moderate | Jeffery Darby SVP, Sales and Marketing sell | $785k 5,608 shares | -26% | - | |
| 37Weak | Donna M. Long SVP, CIO sell | $442k 3,277 shares | -14% | - | |
| 46Moderate | Scott Leff SVP, CHRO sell | $734k 5,536 shares | -29% | - | |
| 29Weak | Jeffery Darby SVP, Sales and Marketing sell | $300k 2,400 shares | -12% | - | |
| 19Weak | Steven L Berman director sell | $300k 2,669 shares | -0% | - |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 17, 2026 | Long Donna M. Officer | 734 0.00% of outstanding | $99k | Aug 17, 2026 | none |
| Aug 5, 2026 | Bowen Gregory C. Officer | 3,531 0.01% of outstanding | $512k | Aug 5, 2026 | none |
| May 6, 2026 | McKnight John Former Officer | 1,326 0.00% of outstanding | $166k | May 6, 2026 | none |
| Mar 12, 2026 | Long Donna M. Officer | 947 0.00% of outstanding | $99k | Mar 12, 2026 | $100k |
| Jan 2, 2026 | Long Donna M. Officer | 812 0.00% of outstanding | $100k | Jan 2, 2026 | none |
| Dec 16, 2025 | MARC BERMAN FAMILY MEMBER | 18,000 0.06% of outstanding | $2.3M | Dec 16, 2025 | $11M |
| Dec 16, 2025 | STEVEN BERMAN BOARD MEMBER | 36,000 0.12% of outstanding | $4.5M | Dec 16, 2025 | $22M |
| Dec 12, 2025 | McKnight John Officer | 2,000 0.01% of outstanding | $258k | Dec 12, 2025 | $1.0M |
| Dec 1, 2025 | McKnight John Officer | 8,174 0.03% of outstanding | $1.1M | Dec 1, 2025 | none |
| Oct 31, 2025 | Hession David Officer | 12,493 0.04% of outstanding | $1.7M | Oct 31, 2025 | none |
| Sep 16, 2025 | MARC H BERMAN FAMILY MEMBER | 72,000 0.24% of outstanding | $11M | Sep 16, 2025 | $9.9M |
| Sep 16, 2025 | STEVEN L BERMAN BOARD MEMBER | 144,000 0.47% of outstanding | $23M | Sep 16, 2025 | $20M |
| Sep 12, 2025 | Bowen Gregory C. Officer | 1,453 0.00% of outstanding | $237k | Sep 12, 2025 | none |
| Aug 13, 2025 | DARBY JEFFERY Officer | 113 0.00% of outstanding | $17k | Aug 13, 2025 | $1.7M |
| Aug 12, 2025 | DARBY JEFFERY Officer | 9,191 0.03% of outstanding | $1.4M | Aug 12, 2025 | $318k |
| Aug 12, 2025 | Long Donna M. Officer | 1,213 0.00% of outstanding | $182k | Aug 12, 2025 | $100k |
| Aug 11, 2025 | DARBY JEFFERY Officer | 2,231 0.01% of outstanding | $318k | Aug 11, 2025 | none |
| Jul 28, 2025 | Long Donna M. Officer | 820 0.00% of outstanding | $100k | Jul 28, 2025 | none |
| Jun 17, 2025 | BERMAN MARC H FAMILY MEMBER | 72,000 0.24% of outstanding | $8.8M | Jun 17, 2025 | $2.3M |
| Jun 17, 2025 | BERMAN STEVEN L BOARD MEMBER | 144,000 0.47% of outstanding | $18M | Jun 17, 2025 | $4.7M |
| May 19, 2025 | GAVIN JOHN J Director | 2,900 0.01% of outstanding | $380k | May 19, 2025 | none |
| Mar 17, 2025 | BERMAN MARC H FAMILY MEMBER | 36,000 0.12% of outstanding | $4.6M | Mar 17, 2025 | $5.0M |
| Mar 17, 2025 | BERMAN STEVEN L BOARD MEMBER | 72,000 0.24% of outstanding | $9.1M | Mar 17, 2025 | $22M |
| Mar 6, 2025 | Long Donna M. Officer | 742 0.00% of outstanding | $99k | Mar 6, 2025 | none |
| Dec 16, 2024 | BERMAN MARC H FAMILY MEMBER | 37,500 0.12% of outstanding | $5.1M | Dec 16, 2024 | $3.4M |
Transactions
The newest 50 of 253 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 14, 2026 | Joseph P. Braun SVP and General Counsel | MOption exercise Common Stock | +4,708 | $84.93 | $400k | 25,132 | 27 d ago |
| Sep 14, 2026 | Joseph P. Braun SVP and General Counsel | FTax withholding Common Stock | -3,159 | $126.60 | $400k | 21,973 | 27 d ago |
| Sep 14, 2026 | Joseph P. Braun SVP and General Counsel | MOption exercise Employee Stock Option (right to buy)derivative | -4,708 | $0.00 | $0 | 2,989 | 27 d ago |
| Sep 9, 2026 | Kevin M. Olsen President and CEO | MOption exercise Common Stock | +4,749 | $82.03 | $390k | 103,996 | 32 d ago |
| Sep 9, 2026 | Kevin M. Olsen President and CEO | MOption exercise Common Stock | +11,697 | $61.68 | $721k | 115,693 | 32 d ago |
| Sep 9, 2026 | Kevin M. Olsen President and CEO | FTax withholding Common Stock | -11,923 | $126.60 | $1.5M | 103,770 | 32 d ago |
| Sep 9, 2026 | Kevin M. Olsen President and CEO | MOption exercise Employee Stock Option (right to buy)derivative | -4,749 | $0.00 | $0 | 0 | 32 d ago |
| Sep 9, 2026 | Kevin M. Olsen President and CEO | MOption exercise Employee Stock Option (right to buy)derivative | -11,697 | $0.00 | $0 | 0 | 32 d ago |
| Sep 3, 2026 | Kathleen Pacheco President, Specialty Vehicle | FTax withholding Common Stock | -201 | $129.66 | $26k | 4,375 | 35 d ago |
| Aug 17, 2026 | Donna M. Long SVP, CIO | SOpen-market sale Common Stock10b5-1 | -734 | $135.21 | $99k | 19,339 | Aug 18, 2026 |
| Aug 5, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | MOption exercise Common Stock | +1,974 | $96.36 | $190k | 7,314 | Aug 7, 2026 |
| Aug 5, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | MOption exercise Common Stock | +1,557 | $91.28 | $142k | 8,871 | Aug 7, 2026 |
| Aug 5, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | SOpen-market sale Common Stock | -1,974 | $145.23 | $287k | 6,897 | Aug 7, 2026 |
| Aug 5, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | SOpen-market sale Common Stock | -1,557 | $144.72 | $225k | 5,340 | Aug 7, 2026 |
| Aug 5, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | MOption exercise Employee Stock Option (right to buy)derivative | -1,974 | $0.00 | $0 | 0 | Aug 7, 2026 |
| Aug 5, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | MOption exercise Employee Stock Option (right to buy)derivative | -1,557 | $0.00 | $0 | 520 | Aug 7, 2026 |
| Jun 1, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | AGrant or award Common Stock | +215 | $115.93 | $25k | 5,354 | Jun 3, 2026 |
| Jun 1, 2026 | G. Michael Stakias director | AGrant or award Common Stock | +1,344 | $122.71 | $165k | 16,150 | Jun 3, 2026 |
| Jun 2, 2026 | Kathleen Pacheco President, Specialty Vehicle | FTax withholding Common Stock | -116 | $125.83 | $15k | 4,527 | Jun 3, 2026 |
| Jun 1, 2026 | Steven L Berman director | AGrant or award Common Stock | +1,344 | $122.71 | $165k | 761,787 | Jun 3, 2026 |
| Jun 1, 2026 | Lisa M Bachmann director | AGrant or award Common Stock | +1,344 | $122.71 | $165k | 8,208 | Jun 3, 2026 |
| Jun 1, 2026 | Kelly A Romano director | AGrant or award Common Stock | +1,344 | $122.71 | $165k | 12,172 | Jun 3, 2026 |
| Jun 1, 2026 | John J Gavin director | AGrant or award Common Stock | +1,344 | $122.71 | $165k | 10,546 | Jun 3, 2026 |
| Jun 1, 2026 | James Darrell Thomas director | AGrant or award Common Stock | +1,344 | $122.71 | $165k | 7,918 | Jun 3, 2026 |
| Jun 1, 2026 | Richard T Riley director | AGrant or award Common Stock | +1,344 | $122.71 | $165k | 30,312 | Jun 3, 2026 |
| Jun 2, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | FTax withholding Common Stock | -76 | $125.83 | $9,563 | 5,278 | Jun 3, 2026 |
| May 15, 2026 | Lisa M Bachmann director | FTax withholding Common Stock | -33 | $116.16 | $3,833 | 6,864 | May 19, 2026 |
| May 15, 2026 | James Darrell Thomas director | FTax withholding Common Stock | -33 | $116.16 | $3,833 | 6,574 | May 19, 2026 |
| May 15, 2026 | Kelly A Romano director | FTax withholding Common Stock | -33 | $116.16 | $3,833 | 10,828 | May 19, 2026 |
| May 15, 2026 | Richard T Riley director | FTax withholding Common Stock | -33 | $116.16 | $3,833 | 28,968 | May 19, 2026 |
| Mar 12, 2026 | Donna M. Long SVP, CIO | SOpen-market sale Common Stock10b5-1 | -318 | $102.19 | $32k | 20,702 | Mar 16, 2026 |
| Mar 12, 2026 | Donna M. Long SVP, CIO | SOpen-market sale Common Stock10b5-1 | -394 | $103.21 | $41k | 20,308 | Mar 16, 2026 |
| Mar 12, 2026 | Donna M. Long SVP, CIO | SOpen-market sale Common Stock10b5-1 | -235 | $104.03 | $24k | 20,073 | Mar 16, 2026 |
| Mar 3, 2026 | Joseph P. Braun SVP and General Counsel | FTax withholding Common Stock | -304 | $116.22 | $35k | 20,962 | Mar 5, 2026 |
| Mar 3, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | FTax withholding Common Stock | -76 | $116.22 | $8,833 | 5,246 | Mar 5, 2026 |
| Mar 3, 2026 | Donna M. Long SVP, CIO | FTax withholding Common Stock | -221 | $116.22 | $26k | 21,551 | Mar 5, 2026 |
| Mar 3, 2026 | Kevin M. Olsen President and CEO | FTax withholding Common Stock | -2,072 | $116.22 | $241k | 101,861 | Mar 5, 2026 |
| Mar 3, 2026 | Kathleen Pacheco President, Specialty Vehicle | FTax withholding Common Stock | -142 | $116.22 | $17k | 4,643 | Mar 5, 2026 |
| Mar 3, 2026 | Eric Luftig President, Light Duty | FTax withholding Common Stock | -277 | $116.22 | $32k | 12,851 | Mar 5, 2026 |
| Mar 3, 2026 | Scott Leff SVP, CHRO | FTax withholding Common Stock | -235 | $116.22 | $27k | 18,309 | Mar 5, 2026 |
| Mar 4, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | FTax withholding Common Stock | -107 | $116.16 | $12k | 5,139 | Mar 5, 2026 |
| Mar 4, 2026 | Joseph P. Braun SVP and General Counsel | FTax withholding Common Stock | -538 | $116.16 | $62k | 20,424 | Mar 5, 2026 |
| Mar 4, 2026 | Donna M. Long SVP, CIO | FTax withholding Common Stock | -531 | $116.16 | $62k | 21,020 | Mar 5, 2026 |
| Mar 4, 2026 | Kevin M. Olsen President and CEO | FTax withholding Common Stock | -2,724 | $116.16 | $316k | 99,137 | Mar 5, 2026 |
| Mar 4, 2026 | Eric Luftig President, Light Duty | FTax withholding Common Stock | -306 | $116.16 | $36k | 12,545 | Mar 5, 2026 |
| Mar 4, 2026 | Scott Leff SVP, CHRO | FTax withholding Common Stock | -539 | $116.16 | $63k | 17,770 | Mar 5, 2026 |
| Mar 2, 2026 | Steven L Berman director | FTax withholding Common Stock | -55 | $115.93 | $6,376 | 760,443 | Mar 4, 2026 |
| Mar 2, 2026 | Joseph P. Braun SVP and General Counsel | FTax withholding Common Stock | -91 | $115.93 | $11k | 17,075 | Mar 4, 2026 |
| Mar 2, 2026 | Steven Bashir President, Heavy Duty | AGrant or award Common Stock | +1,293 | $115.93 | $150k | 1,293 | Mar 4, 2026 |
| Mar 2, 2026 | Gregory C. Bowen VP, Chief Accounting Officer | FTax withholding Common Stock | -48 | $115.93 | $5,565 | 4,735 | Mar 4, 2026 |
50 of 253 rows shown.
Insiders
Everyone who has filed a Form 4 here.
- Steven L Bermandirector
- Lisa M Bachmanndirector
- Steven BashirPresident, Heavy Duty
- Gregory C. BowenVP, Chief Accounting Officer
- Joseph P. BraunSVP and General Counsel
- Jeffery DarbySVP, Sales and Marketing
- John J Gavindirector
- David HessionSVP and CFO
- Scott LeffSVP, CHRO
- Donna M. LongSVP, CIO
- Eric LuftigPresident, Light Duty
- John McKnightPresident, Heavy Duty
- Kevin M. OlsenPresident and CEO
- Kathleen PachecoPresident, Specialty Vehicle
- Richard T Rileydirector
- Kelly A Romanodirector
- G. Michael Stakiasdirector
- James Darrell Thomasdirector
Questions about DORM
Answered from the filings on this page, as of the latest one.
Are insiders buying DORM?
As of Sep 16, 2026, SEC Form 4 filings show 0 open-market buys worth $0 by 0 insiders and 2 open-market sells worth $611k by 2 insiders at Dorman Products, Inc. in the last 90 days, net -$611k. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.
Who was the last insider to trade DORM on the open market?
Donna M. Long (SVP, CIO) sold $99k of DORM on Aug 17, 2026 and filed the Form 4 on Aug 18, 2026. InsiderTell scored 13 (weak), under a 10b5-1 plan, with 2 insiders on the same side within 14 days.
How many insiders file Form 4 at Dorman Products, Inc.?
18 people have filed a Form 4 at Dorman Products, Inc., among them Steven L Berman (director), Lisa M Bachmann (director), Steven Bashir (President, Heavy Duty). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.