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buyModerate cluster of 2

Jonathan Anderman bought $31k of CMPX

Gen Counsel & Corporate Sec at Compass Therapeutics, Inc.. 20,000 shares at an average of $1.54, traded Apr 7, 2025, filed Apr 8, 2025.

Conviction score
46
Value
$31k
20,000 shares
Holdings after
21,000
+2000% from before
From 52-week low
+16%
low $1.35, close $1.57
From 52-week high
-60%
high $3.90, as of Apr 7, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $31k at market
    +5
  • Relative to holdings
    Holdings up 2000%
    +10
  • Price context
    60% below the 52-week high
    +8
  • Cluster
    2 insiders buying within 14 days
    +8
  • 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.

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.

CMPXOct 9, 2026 · close 0.99
Since filing Apr 8, 2025: -37.5%SPY +59.4% · excess -97.0%

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 0001171843-25-002086, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Apr 7, 2025POpen-market purchase
Common Stock
+20,000$1.54$31k21,000Apr 8, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
41Moderate
CMPXbuy
Compass Therapeutics, Inc.
Neil Lerner
Chief Accounting Officer
$18k
20,000 shares
+5%
28Weak
CMPXbuy
Compass Therapeutics, Inc.
Neil Lerner
Chief Accounting Officer
$2,850
2,500 shares
+1%
28Weak
CMPXbuy
Compass Therapeutics, Inc.
Thomas J. Schuetz
CHIEF EXECUTIVE OFFICER
$21k
10,000 shares
+0%
68Notable
CMPXsell 2
Compass Therapeutics, Inc.
Orbimed Advisors LLC
director, owner
$5.7M
3,571,428 shares
-100%
68Notable
CMPXsell 2
Compass Therapeutics, Inc.
Carl L Gordon
director, owner
$5.7M
3,571,428 shares
-100%
39Weak
CMPXbuy 2
Compass Therapeutics, Inc.
Neil Lerner
CHIEF ACCOUNTING OFFICER
$28k
20,000 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.

Jonathan Anderman bought $31k of CMPX | InsiderTell