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sellWeak cluster of 410b5-1 plan

Scott J Montross sold $273k of NWPX

President & CEO at NORTHWEST PIPE CO. 2,500 shares at an average of $109.37, traded Aug 24, 2026, filed Aug 25, 2026.

Warning score
33
Value
$273k
2,500 shares
Holdings after
71,129
-3% from before
From 52-week low
+124%
low $49.43, close $110.51
From 52-week high
-26%
high $149.94, as of Aug 24, 2026

Score components

  • Role
    CEO
    +25
  • Trade size
    $273k at market
    +13
  • Share of holdings sold
    Sold 3.4% of holdings
    0
  • Cluster
    4 insiders selling within 14 days
    +15
  • 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.

NWPXOct 12, 2026 · close 99.22
Since filing Aug 25, 2026: -10.3%SPY +1.8% · excess -12.1%

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 0001437749-26-028907, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 24, 2026SOpen-market sale
Common Stock10b5-1
-2,500$109.37$273k71,129Aug 25, 2026

Related signals

Other insiders at NORTHWEST PIPE CO and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
15Weak
NWPXsell 310b5-1
NORTHWEST PIPE CO
Keith R Larson
director
$27k
250 shares
-2%
45Moderate
NWPXsell 310b5-1
NORTHWEST PIPE CO
Eric Stokes
SVP and Group President of WTS
$1.3M
12,631 shares
-50%
45Moderate
NWPXsell 310b5-1
NORTHWEST PIPE CO
Eric Stokes
SVP and Group President of WTS
$1.3M
12,353 shares
-33%
20Weak
NWPXsell 310b5-1
NORTHWEST PIPE CO
Keith R Larson
director
$102k
1,000 shares
-6%
20Weak
NWPXsell 510b5-1
NORTHWEST PIPE CO
Keith R Larson
director
$102k
1,000 shares
-6%
17Weak
NWPXsell 510b5-1
NORTHWEST PIPE CO
Aaron Wilkins
CFO
$2,039
20 shares
-0%
20Weak
NWPXsell 510b5-1
NORTHWEST PIPE CO
Keith R Larson
director
$101k
1,000 shares
-6%
29Weak
NWPXsell 510b5-1
NORTHWEST PIPE CO
Aaron Wilkins
CFO
$196k
1,950 shares
-8%
50Moderate
NWPXsell 6
NORTHWEST PIPE CO
Michael C Franson
director
$369k
3,500 shares
-18%
20Weak
NWPXsell 610b5-1
NORTHWEST PIPE CO
Keith R Larson
director
$106k
1,000 shares
-5%

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.

Scott J Montross sold $273k of NWPX | InsiderTell