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buyModerate cluster of 2

Otello Stampacchia bought $8.0M of IMA

director at ImageneBio, Inc.. 267,556 shares at an average of $29.90, traded Jul 25, 2025, filed Jul 30, 2025.

Conviction score
58
Value
$8.0M
267,556 shares
Holdings after
454,982
+143% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Director
    +15
  • Trade size
    $8.0M at market
    +25
  • Relative to holdings
    Holdings up 143%
    +10
  • Price context
    No price history yet
    0
  • 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.

This signal so far: 1m -12.4%, 3m -42.5%, 6m -51.7%.

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.

IMAOct 9, 2026 · close 4.24
Since filing Jul 30, 2025: -72.3%SPY +24.4% · excess -96.7%

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 0001415889-25-020598, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jul 25, 2025MOption exercise
Common Stock
+379--379Jul 30, 2025
Jul 25, 2025POpen-market purchase
Common Stockindirect: Omega Fund VI, L.P.
+267,556$29.90$8.0M454,982Jul 30, 2025
Jul 25, 2025MOption exercise
Stock Option (right to buy)derivative
-17,520$0.00$00Jul 30, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
33Weak
IMAbuy
ImageneBio, Inc.
Joseph P Slattery
director
$96k
16,000 shares
-
54Moderate
IMAbuy 2
ImageneBio, Inc.
David P Bonita
director
$2.5M
83,611 shares
+41%

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.

Otello Stampacchia bought $8.0M of IMA | InsiderTell