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buyNotable cluster of 3

Muneer A Satter bought $5.1M of ANNX

director at Annexon, Inc.. 1,500,000 shares at an average of $3.37, traded Nov 17, 2025, filed Nov 19, 2025.

Conviction score
69
Value
$5.1M
1,500,000 shares
Holdings after
8,906,024
+20% from before
From 52-week low
+119%
low $1.38, close $3.02
From 52-week high
-45%
high $5.50, as of Nov 17, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $5.1M at market
    +25
  • Relative to holdings
    Holdings up 20%
    +6
  • Price context
    45% below the 52-week high
    +8
  • Cluster
    3 insiders buying within 14 days
    +15
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

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.

This signal so far: 1m +27.3%, 3m +24.6%, 6m +24.1%.

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 13, 2026 · close 3.83
Since filing Nov 19, 2025: -5.7%SPY +18.7% · excess -24.3%

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 0001315797-25-000006, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 17, 2025POpen-market purchase
Common Stockindirect: See footnote
+500,000$2.99$1.5M7,906,024Nov 19, 2025
Nov 18, 2025POpen-market purchase
Common Stockindirect: See footnote
+500,000$3.18$1.6M8,406,024Nov 19, 2025
Nov 19, 2025POpen-market purchase
Common Stockindirect: See footnote
+500,000$3.94$2.0M8,906,024Nov 19, 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%
47Moderate
ANNXbuy
Annexon, Inc.
Muneer A Satter
director
$3.3M
613,497 shares
+6%
18Weak
ANNXbuy10b5-1
Annexon, Inc.
William H. Carson
director
$46k
8,000 shares
+11%
19Weak
ANNXbuy10b5-1
Annexon, Inc.
William H. Carson
director
$50k
8,000 shares
+13%
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%

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.