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sellWeak10b5-1 plan

John Coll sold $177k of ALSN

SVP, Global MSS at Allison Transmission Holdings Inc. 1,791 shares at an average of $98.79, traded Dec 31, 2025, filed Jan 2, 2026.

Warning score
12
Value
$177k
1,791 shares
Holdings after
10,021
-15% from before
From 52-week low
+24%
low $78.44, close $97.20
From 52-week high
-18%
high $118.11, as of Dec 31, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $177k at market
    +12
  • Share of holdings sold
    Sold 15% of holdings
    +5
  • Cluster
    No other insider selling within 14 days
    0
  • 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.

This signal so far: 1m +9.9%, 3m +18.6%, 6m +18.2%.

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.

ALSNOct 9, 2026 · close 109.86
Since filing Jan 2, 2026: +11.8%SPY +14.8% · excess -2.9%

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 0001193125-26-000965, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 31, 2025SOpen-market sale
Common Stock10b5-1
-1,791$98.79$177k10,021Jan 2, 2026

Related signals

Other insiders at Allison Transmission Holdings Inc and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
50Moderate
ALSNsell 3
Allison Transmission Holdings Inc
David S. Graziosi
Chair, President and CEO
$3.6M
26,708 shares
-8%
41Moderate
ALSNsell 3
Allison Transmission Holdings Inc
Eric C. Scroggins
CLO & Asst. Secretary
$131k
1,050 shares
-6%
33Weak
ALSNsell 3
Allison Transmission Holdings Inc
G Frederick Bohley
See Remarks
$485k
3,961 shares
-3%
41Moderate
ALSNsell
Allison Transmission Holdings Inc
Scott A Mell
CFO & Treasurer
$284k
2,270 shares
-114%
26Weak
ALSNsell
Allison Transmission Holdings Inc
Eric C. Scroggins
CLO & Asst. Secretary
$150k
1,313 shares
-7%
10Weak
ALSNsell10b5-1
Allison Transmission Holdings Inc
G Frederick Bohley
Allison COO,Pres.&BU Leader AT
$1.2M
10,348 shares
-9%
11Weak
ALSNsell10b5-1
Allison Transmission Holdings Inc
John Coll
SVP, Global MSS
$151k
1,788 shares
-13%
47Moderate
ALSNbuy
Allison Transmission Holdings Inc
G Frederick Bohley
Chief Operating Officer
$265k
3,000 shares
+3%
47Moderate
ALSNbuy
Allison Transmission Holdings Inc
G Frederick Bohley
Chief Operating Officer
$268k
3,000 shares
+3%
11Weak
ALSNsell10b5-1
Allison Transmission Holdings Inc
John Coll
SVP, Global MSS
$169k
1,788 shares
-12%

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.

John Coll sold $177k of ALSN | InsiderTell