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buyWeak cluster of 310b5-1 plan

William H. Carson bought $18k of ANNX

director at Annexon, Inc.. 4,115 shares at an average of $4.47, traded Dec 1, 2025, filed Dec 3, 2025.

Conviction score
27
Value
$18k
4,115 shares
Holdings after
50,290
+9% from before
From 52-week low
+199%
low $1.38, close $4.13
From 52-week high
-25%
high $5.50, as of Dec 1, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $18k at market
    0
  • Relative to holdings
    Holdings up 9%
    +3
  • Price context
    25% below the 52-week high
    +4
  • Cluster
    3 insiders buying within 14 days
    +15
  • Repeat buying
    4 buys in 90 days
    +5
  • Track record
    Too few past buys to judge (0 with prices)
    0
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -15

What happened after comparable buys

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.

ANNXOct 9, 2026 · close 4.02
Since filing Dec 3, 2025: -6.1%SPY +15.1% · excess -21.1%

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 0001824280-25-000007, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 1, 2025POpen-market purchase
Common Stock10b5-1
+4,115$4.47$18k50,290Dec 3, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
46Moderate
ANNXbuy
Annexon, Inc.
Douglas Love
PRESIDENT AND CEO
$100k
26,065 shares
+7%
14Weak
ANNXbuy10b5-1
Annexon, Inc.
William H. Carson
director
$45k
8,000 shares
+15%
35Weak
ANNXsell 5
Annexon, Inc.
Dean Richard Artis
EVP & CHIEF SCIENTIFIC OFFICER
$32k
5,894 shares
-3%
42Moderate
ANNXsell 5
Annexon, Inc.
Jennifer Lew
EVP & CHIEF FINANCIAL OFFICER
$30k
5,565 shares
-3%
35Weak
ANNXsell 5
Annexon, Inc.
Jamie Dananberg
CHIEF MEDICAL OFFICER
$32k
5,820 shares
-4%
30Weak
ANNXsell 5
Annexon, Inc.
Michael Overdorf
EVP & CHIEF BUSINESS OFFICER
$24k
4,339 shares
-2%
35Weak
ANNXsell 5
Annexon, Inc.
Ted Yednock
EVP & CHIEF INNOVATION OFFICER
$30k
5,566 shares
-3%
35Weak
ANNXsell 5
Annexon, Inc.
Dean Richard Artis
EVP & CHIEF SCIENTIFIC OFFICER
$27k
5,290 shares
-4%
43Moderate
ANNXsell 5
Annexon, Inc.
Jennifer Lew
EVP & CHIEF FINANCIAL OFFICER
$40k
7,851 shares
-6%
35Weak
ANNXsell 5
Annexon, Inc.
Jamie Dananberg
CHIEF MEDICAL OFFICER
$27k
5,290 shares
-7%

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.

William H. Carson bought $18k of ANNX | InsiderTell