Dorman Products (DORM)

Dorman Products on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials and insider trades. Listed on Nasdaq, classified by the SEC as motor vehicle parts & accessories.

Download CSV

1.6M

Short interest

settlement 2026-09-30

7.0

Days to cover

-1.8 days vs prior

73.1%

Short share of volume

2026-10-09

390

Fails to deliver

settlement 2026-09-11

-$611K

Insider flow, 90 days

0 buys, 3 sells

As of 2026-10-09.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in DORM is 1,593,563 shares, up 51,913 shares over the last month. Over the last 48 readings it ranged from 330,416 shares (31 October 2024) to 1,810,149 shares (15 July 2026). At the reported average volume of 227K shares a day that is 7.0 days to cover.

Embed this chart.The embed keeps its attribution line.

<iframe src="https://xoomar.com/embed/stocks/dorm" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>

Preview Dark previewAdd ?theme=dark to the src for a dark chart.

Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-09-30	1,593,563	+1.6%	226,900	7.02
2026-09-15	1,567,771	+1.7%	178,061	8.80
2026-08-31	1,541,650	-1.7%	150,440	10.25
2026-08-14	1,568,789	-8.4%	455,673	3.44
2026-07-31	1,711,987	-5.4%	247,148	6.93
2026-07-15	1,810,149	+11.3%	238,625	7.59
2026-06-30	1,626,346	+1.2%	413,479	3.93
2026-06-15	1,607,169	+3.0%	255,964	6.28
2026-05-29	1,560,789	+8.1%	226,145	6.90
2026-05-15	1,444,222	+11.5%	294,940	4.90
2026-04-30	1,294,878	+4.8%	206,281	6.28
2026-04-15	1,235,435	+1.6%	233,424	5.29
2026-03-31	1,216,165	+5.8%	301,172	4.04
2026-03-13	1,149,623	+2.8%	315,486	3.64
2026-02-27	1,118,438	+1.1%	258,497	4.33
2026-02-13	1,105,914	+2.4%	165,341	6.69
2026-01-30	1,080,458	-6.5%	184,069	5.87
2026-01-15	1,155,425	-2.8%	179,813	6.43
2025-12-31	1,188,541	+4.2%	167,893	7.08
2025-12-15	1,141,072	-6.0%	191,366	5.96
2025-11-28	1,213,397	+4.0%	170,206	7.13
2025-11-14	1,167,276	-1.4%	215,884	5.41
2025-10-31	1,183,499	+30.1%	342,742	3.45
2025-10-15	909,726	+0.8%	185,233	4.91

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of DORM volume is 73.1%, down 11.4 points over the last five sessions. Over the last 30 readings it ranged from 42.5% (8 October 2026) to 85.8% (23 September 2026). The latest reading is in line with the 30-session average of 72.0%, on 68K shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-09	50K	68K	73.1%	246
2026-10-08	31K	73K	42.5%	14
2026-10-07	62K	107K	57.9%	40
2026-10-06	80K	96K	83.6%	0
2026-10-05	53K	67K	79.1%	0
2026-10-02	111K	132K	84.5%	0
2026-10-01	71K	101K	70.8%	0
2026-09-30	57K	84K	67.5%	0
2026-09-29	57K	80K	71.4%	0
2026-09-28	31K	60K	52.5%	0
2026-09-25	33K	56K	59.7%	0
2026-09-24	64K	77K	83.6%	90
2026-09-23	85K	99K	85.8%	0
2026-09-22	44K	71K	62.0%	0
2026-09-21	40K	84K	47.4%	10
2026-09-18	38K	50K	76.0%	0
2026-09-17	41K	59K	69.4%	15
2026-09-16	42K	56K	76.4%	85
2026-09-15	55K	69K	79.6%	0
2026-09-14	32K	43K	74.2%	0
2026-09-11	30K	41K	74.1%	0
2026-09-10	29K	41K	70.3%	0
2026-09-09	55K	68K	81.4%	0
2026-09-08	48K	66K	73.7%	0
2026-09-04	40K	52K	76.2%	0
2026-09-03	50K	64K	77.8%	0
2026-09-02	64K	79K	81.1%	63
2026-09-01	50K	61K	82.0%	0
2026-08-31	36K	48K	74.8%	0
2026-08-28	39K	54K	72.6%	0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 11 September 2026, the fails-to-deliver balance in DORM is 390 shares, down 102 shares over the last settlement date. Over the last 30 readings it ranged from 6 shares (20 August 2026) to 36,369 shares (29 June 2026). The latest reading sits at the bottom of that range.

Settlement	Shares failed	Price	Value
2026-09-11	390	$126.63	$49K
2026-09-02	492	$127.18	$63K
2026-08-31	191	$129.35	$25K
2026-08-20	6	$134.12	$805
2026-08-17	74	$136.39	$10K
2026-08-06	58	$141.54	$8K
2026-08-04	12,333	$127.68	$1.6M
2026-07-29	66	$143.17	$9K
2026-07-22	39	$137.47	$5K
2026-07-21	19	$137.67	$3K
2026-07-20	255	$141.97	$36K
2026-07-16	971	$137.55	$134K
2026-07-09	11	$135.25	$1K
2026-06-30	889	$132.56	$118K
2026-06-29	36,369	$134.69	$4.9M
2026-06-25	51	$131.87	$7K
2026-06-23	3,156	$124.72	$394K
2026-06-22	2,625	$125.66	$330K
2026-06-18	38	$122.77	$5K
2026-06-17	1,432	$125.75	$180K
2026-06-15	7	$127.86	$895
2026-06-12	1,951	$128.21	$250K
2026-06-09	121	$128.31	$16K
2026-06-08	100	$127.03	$13K
2026-06-04	32	$124.75	$4K
2026-06-02	414	$122.71	$51K
2026-06-01	462	$123.92	$57K
2026-05-29	182	$125.05	$23K
2026-05-28	301	$123.64	$37K
2026-05-27	140	$120.28	$17K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Insiders at DORM reported 3 open-market sells worth $611K in the last 90 days and no open-market buys. Latest filing: Braun Joseph P. (SVP and General Counsel) on 2026-09-14.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-09-14	Braun Joseph P.	SVP and General Counsel	Tax withholding	3K	$126.60	$400K	22K
2026-09-14	Braun Joseph P.	SVP and General Counsel	Option exercise	5K	$84.93	$400K	25K
2026-09-09	Olsen Kevin M.	President and CEO	Tax withholding	12K	$126.60	$1.5M	104K
2026-09-09	Olsen Kevin M.	President and CEO	Option exercise	12K	$61.68	$721K	116K
2026-09-09	Olsen Kevin M.	President and CEO	Option exercise	5K	$82.03	$390K	104K
2026-09-03	Pacheco Kathleen	President, Specialty Vehicle	Tax withholding	201	$129.66	$26K	4K
2026-08-17	Long Donna M.	SVP, CIO	Sell	734	$135.21	$99K	19K
2026-08-05	Bowen Gregory C.	VP, Chief Accounting Officer	Sell	2K	$144.72	$225K	5K
2026-08-05	Bowen Gregory C.	VP, Chief Accounting Officer	Sell	2K	$145.23	$287K	7K
2026-08-05	Bowen Gregory C.	VP, Chief Accounting Officer	Option exercise	2K	$91.28	$142K	9K
2026-08-05	Bowen Gregory C.	VP, Chief Accounting Officer	Option exercise	2K	$96.36	$190K	7K
2026-06-02	Pacheco Kathleen	President, Specialty Vehicle	Tax withholding	116	$125.83	$15K	5K
2026-06-02	Bowen Gregory C.	VP, Chief Accounting Officer	Tax withholding	76	$125.83	$10K	5K
2026-06-01	RILEY RICHARD T	Director	Grant	1K	$122.71	$165K	30K
2026-06-01	Thomas James Darrell	Director	Grant	1K	$122.71	$165K	8K
2026-06-01	GAVIN JOHN J	Director	Grant	1K	$122.71	$165K	11K
2026-06-01	Romano Kelly A	Director	Grant	1K	$122.71	$165K	12K
2026-06-01	Stakias G. Michael	Director	Grant	1K	$122.71	$165K	16K
2026-06-01	Bowen Gregory C.	VP, Chief Accounting Officer	Grant	215	$115.93	$25K	5K
2026-06-01	Bachmann Lisa M	Director	Grant	1K	$122.71	$165K	8K
2026-06-01	BERMAN STEVEN L	Director	Grant	1K	$122.71	$165K	762K
2026-05-15	RILEY RICHARD T	Director	Tax withholding	33	$116.16	$4K	29K
2026-05-15	Romano Kelly A	Director	Tax withholding	33	$116.16	$4K	11K
2026-05-15	Thomas James Darrell	Director	Tax withholding	33	$116.16	$4K	7K
2026-05-15	Bachmann Lisa M	Director	Tax withholding	33	$116.16	$4K	7K
2026-03-12	Long Donna M.	SVP, CIO	Sell	235	$104.03	$24K	20K
2026-03-12	Long Donna M.	SVP, CIO	Sell	394	$103.21	$41K	20K
2026-03-12	Long Donna M.	SVP, CIO	Sell	318	$102.19	$32K	21K
2026-03-04	Leff Scott	SVP, CHRO	Tax withholding	539	$116.16	$63K	18K
2026-03-04	Luftig Eric	President, Light Duty	Tax withholding	306	$116.16	$36K	13K
2026-03-04	Olsen Kevin M.	President and CEO	Tax withholding	3K	$116.16	$316K	99K
2026-03-04	Long Donna M.	SVP, CIO	Tax withholding	531	$116.16	$62K	21K
2026-03-04	Braun Joseph P.	SVP and General Counsel	Tax withholding	538	$116.16	$62K	20K
2026-03-04	Bowen Gregory C.	VP, Chief Accounting Officer	Tax withholding	107	$116.16	$12K	5K
2026-03-03	Leff Scott	SVP, CHRO	Tax withholding	235	$116.22	$27K	18K
2026-03-03	Luftig Eric	President, Light Duty	Tax withholding	277	$116.22	$32K	13K
2026-03-03	Pacheco Kathleen	President, Specialty Vehicle	Tax withholding	142	$116.22	$17K	5K
2026-03-03	Olsen Kevin M.	President and CEO	Tax withholding	2K	$116.22	$241K	102K
2026-03-03	Long Donna M.	SVP, CIO	Tax withholding	221	$116.22	$26K	22K
2026-03-03	Braun Joseph P.	SVP and General Counsel	Tax withholding	304	$116.22	$35K	21K
2026-03-03	Bowen Gregory C.	VP, Chief Accounting Officer	Tax withholding	76	$116.22	$9K	5K
2026-03-02	Porter Nathan J	SVP, Chief Operations Officer	Grant	4K	$115.93	$425K	4K
2026-03-02	Rayfield Charles W	SVP, CFO , Treasurer	Grant	3K	$115.93	$300K	3K
2026-03-02	Luftig Eric	President, Light Duty	Grant	4K	$115.93	$500K	13K
2026-03-02	Luftig Eric	President, Light Duty	Tax withholding	67	$115.93	$8K	9K
2026-03-02	Luftig Eric	President, Light Duty	Tax withholding	159	$115.93	$18K	9K
2026-03-02	Luftig Eric	President, Light Duty	Tax withholding	61	$115.93	$7K	9K
2026-03-02	Olsen Kevin M.	President and CEO	Grant	17K	$115.93	$2.0M	104K
2026-03-02	Olsen Kevin M.	President and CEO	Tax withholding	715	$115.93	$83K	87K
2026-03-02	Olsen Kevin M.	President and CEO	Tax withholding	508	$115.93	$59K	87K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Planned sales (Form 144)

Newest first. JSON

12 Form 144 notices on file for DORM worth $45.1M at the prices reported; 2 in the last 90 days worth $611K. Latest: Long Donna M. filed on 2026-08-17 to sell 734 shares ($99K) from 2026-08-17.

Filed	Seller	Shares	Market value	Of outstanding	Sale from	Broker
2026-08-17	Long Donna M.Officer	734	$99K	0.002%	2026-08-17	Fidelity Brokerage Services LLC
2026-08-05	Bowen Gregory C.Officer	4K	$512K	0.012%	2026-08-05	Fidelity Brokerage Services LLC
2026-05-06	McKnight JohnFormer Officer	1K	$166K	0.004%	2026-05-06	Fidelity Brokerage Services LLC
2026-03-12	Long Donna M.Officer	947	$99K	0.003%	2026-03-12	Fidelity Brokerage Services LLC
2026-01-02	Long Donna M.Officer	812	$100K	0.003%	2026-01-02	Fidelity Brokerage Services LLC
2025-12-16	STEVEN BERMANBOARD MEMBER	36K	$4.5M	0.118%	2025-12-16	MERRILL LYNCH
2025-12-16	MARC BERMANFAMILY MEMBER	18K	$2.3M	0.059%	2025-12-16	MERRILL LYNCH
2025-12-12	McKnight JohnOfficer	2K	$258K	0.007%	2025-12-12	Fidelity Brokerage Services LLC
2025-12-01	McKnight JohnOfficer	8K	$1.1M	0.027%	2025-12-01	Fidelity Brokerage Services LLC
2025-10-31	Hession DavidOfficer	12K	$1.7M	0.041%	2025-10-31	Stifel Nicolaus & Company Inc
2025-09-16	STEVEN L BERMANBOARD MEMBER	144K	$22.9M	0.472%	2025-09-16	MERRILL LYNCH
2025-09-16	MARC H BERMANFAMILY MEMBER	72K	$11.3M	0.236%	2025-09-16	MERRILL LYNCH

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

3 holders report 5% or more of DORM in their latest filing, 1 on Schedule 13D (active intent). The largest reported stake is Steven L. Berman at 6.9% of the class (2,096,274 shares), filed 2025-11-12 for an event on 2025-10-24.

Filed	Form	Holder	Shares	Of class	Event
2026-04-29	13G	Vanguard Portfolio Managementinvestment adviser	1.5M	5.1%	2026-03-31
2026-03-26	13G/Ano. 12	The Vanguard Groupinvestment adviser	0	0.0%	2026-03-13
2026-02-09	13G/Ano. 10	Marc H. Bermanindividual	1.5M	5.1%	2025-12-31
2025-11-12	13D/Ano. 12	Steven L. Bermanindividual	2.1M	6.9%	2025-10-24

13F holders

Tracked managers holding DORM at their latest 13F. JSON

4 of the 30 tracked managers held DORM at their latest 13F, $15.0M in total at quarter-end prices. Millennium Management is the largest at $6.8M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 3 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
Millennium Management	2026-06-30	50K	$6.8M	0.00%	-38K
D. E. Shaw & Co.	2026-06-30	48K	$6.5M	0.00%	-96K
AQR Capital Management	2026-06-30	7K	$926K	0.00%	+1K
Citadel Advisors	2026-06-30	5K	$704K	0.00%	-84K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 FY 2026 (quarter ended 2026-06-27) Dorman Products reported revenue of $544.6M, up 0.7% from the same quarter a year earlier, and net income of $87.8M (2.93 diluted EPS). In FY 2025 it generated $113.6M of operating cash flow. As of 2026-06-27, cash was $132.0M against $440.5M of debt.

Cash: $132.0M
Debt: $440.5M
Equity: $1.52B
Total assets: $2.50B
Shares outstanding: 29,675,618

Quarterly, last 8 quarters

Quarter	Period end	Revenue	Net income	Margin	Diluted EPS
Q2 FY 2026	2026-06-27	$544.6M	$87.8M	16.1%	2.93
Q1 FY 2026	2026-03-28	$528.8M	$43.6M	8.2%	1.43
Q4 FY 2025derived	2025-12-31	$537.9M	$11.6M	2.1%	n/a
Q3 FY 2025	2025-09-27	$543.7M	$76.4M	14.1%	2.48
Q2 FY 2025	2025-06-28	$541.0M	$58.7M	10.9%	1.91
Q1 FY 2025	2025-03-29	$507.7M	$57.5M	11.3%	1.87
Q4 FY 2024derived	2024-12-31	$533.8M	$54.5M	10.2%	n/a
Q3 FY 2024	2024-09-28	$503.8M	$55.3M	11.0%	1.80

Fiscal years, with buybacks and dividends

Fiscal year	Ends	Revenue	Net income	Operating cash flow	Capex	Buybacks	Dividends
FY 2025	2025-12-31	$2.13B	$204.2M	$113.6M	$38.0M	n/a	n/a
FY 2024	2024-12-31	$2.01B	$190.0M	$231.0M	$39.4M	n/a	n/a
FY 2023	2023-12-31	$1.93B	$129.3M	$208.8M	$44.0M	n/a	n/a
FY 2022	2022-12-31	$1.73B	$121.5M	$41.7M	$37.9M	n/a	n/a
FY 2021	2021-12-25	$1.35B	$131.5M	$100.3M	$19.8M	n/a	n/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-27; shares outstanding as of 2026-07-30 from the cover page.

What this page is

Dorman Products in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Dorman Products (DORM), SEC CIK 868780, listed on Nasdaq, classified by the SEC as motor vehicle parts & accessories. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest: FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume: FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-09.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-11.JSON and CSV
Planned sales: SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-08-17.JSON and CSV
Large holders: SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-04-29.JSON and CSV
13F holders: SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials: SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-27.JSON and CSV
Insider trades: SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-14.JSON and CSV
Company record: EDGAR filing index for CIK 868780Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits: 10 requests a minute without a key, 30 with a free key from a free account.

How to read it

Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as motor vehicle parts & accessories

Datasets

Frequently Asked Questions

How much of DORM is sold short?

1,593,563 shares were held short at the 2026-09-30 settlement, 7.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.

What is DORM's daily short volume?

On 2026-10-09, 49,747 of the 68,048 DORM shares reported to FINRA were sold short, 73.1% of the day's reported volume. Short volume is a flow for one day, not a position.

Does DORM have fails to deliver?

The SEC's latest file shows 390 DORM shares failed to deliver at settlement 2026-09-11. Fails are reported per settlement date and published twice a month with a lag.

Are DORM insiders buying or selling?

Insiders at DORM reported 3 open-market sells worth $611K in the last 90 days and no open-market buys. Latest filing: Braun Joseph P. (SVP and General Counsel) on 2026-09-14.

Have DORM insiders filed to sell?

12 Form 144 notices on file for DORM worth $45.1M at the prices reported; 2 in the last 90 days worth $611K. Latest: Long Donna M. filed on 2026-08-17 to sell 734 shares ($99K) from 2026-08-17.

Who owns 5% or more of DORM?

What did DORM report last quarter?

Which tracked 13F managers own DORM?

4 of the 30 tracked 13F managers held DORM shares at their latest filing, $15.0M in all. The largest: Izzy Englander's Millennium Management (50K shares, $6.8M), D. E. Shaw & Co. (48K shares, $6.5M), Cliff Asness's AQR Capital Management (7K shares, $926K), Ken Griffin's Citadel Advisors (5K shares, $704K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.