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sellWeak cluster of 210b5-1 plan

Donna M. Long sold $99k of DORM

SVP, CIO at Dorman Products, Inc.. 734 shares at an average of $135.21, traded Aug 17, 2026, filed Aug 18, 2026.

Warning score
13
Value
$99k
734 shares
Holdings after
19,339
-4% from before
From 52-week low
+33%
low $100.50, close $133.70
From 52-week high
-20%
high $166.34, as of Aug 17, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $99k at market
    +10
  • Share of holdings sold
    Sold 3.7% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

DORMOct 9, 2026 · close 120.40
Since filing Aug 18, 2026: -9.4%SPY +1.6% · excess -11.0%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001628280-26-057643, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 17, 2026SOpen-market sale
Common Stock10b5-1
-734$135.21$99k19,339Aug 18, 2026

Related signals

Other insiders at Dorman Products, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
36Weak
DORMsell 2
Dorman Products, Inc.
Gregory C. Bowen
VP, Chief Accounting Officer
$512k
3,531 shares
-40%
5Weak
DORMsell10b5-1
Dorman Products, Inc.
Donna M. Long
SVP, CIO
$98k
947 shares
-5%
5Weak
DORMsell10b5-1
Dorman Products, Inc.
Donna M. Long
SVP, CIO
$100k
812 shares
-4%
38Weak
DORMsell
Dorman Products, Inc.
John McKnight
President, Heavy Duty
$258k
2,000 shares
-18%
35Weak
DORMsell
Dorman Products, Inc.
John McKnight
President, Heavy Duty
$640k
4,898 shares
-31%
67Notable
DORMsell
Dorman Products, Inc.
David Hession
SVP and CFO
$1.7M
12,493 shares
-69%
18Weak
DORMsell
Dorman Products, Inc.
Gregory C. Bowen
VP, Chief Accounting Officer
$237k
1,453 shares
-24%
7Weak
DORMsell10b5-1
Dorman Products, Inc.
Donna M. Long
SVP, CIO
$182k
1,213 shares
-6%
5Weak
DORMsell10b5-1
Dorman Products, Inc.
Donna M. Long
SVP, CIO
$100k
820 shares
-4%
41Moderate
DORMsell
Dorman Products, Inc.
John J Gavin
director
$380k
2,900 shares
-26%

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.

Donna M. Long sold $99k of DORM | InsiderTell