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Otello Stampacchia

Director

Otello Stampacchia (Director) filed 1 Form 4 report in the past 24 months (1 purchase, 0 sales, 1 filed past the two-business-day deadline), most often in IMA. Across 1 priced purchase filing, the average 21-session return was -14.1% from execution and -10.6% from disclosure (delay-adjusted; derived). The largest single filing was $8.0M of IMA (267,556 sh × $29.90, as filed), executed Jul 25 2025.

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Return, ttmiAverage return per filing, trailing twelve months
-14.1%
avg across 1 priced filings
Delay-adjustediThe same average, entered at disclosure dates
-10.6%
same 1 filings, from disclosure
Filings, ttm
1
1 buys · 0 sells · 1 late
Median delay
5d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$8.0M
shares × price, as filed
Last traded
Jul 25 2025
Filed Jul 30 2025
Open performance→
Volume by month
$8.0M$4.0M$0Oct 2024Apr 2025Oct 2025Apr 2026Jul 2025 · buys $8.0M
Buys $8.0M Sells $0

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Not on file 1 filing

Sector per market data · by filing · past 24 months

Most traded names
IMA IMA IMA · 1 buy · 0 sells 1 filing
Recent filings
IMAPURCHASE ImageneBio, Inc. View filing → $8.0M
267,556 sh × $29.90
Exec Jul 25 2025
Filed Jul 30 2025 · 4:47 PM ET †