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Allison Ambrose Insider Profile

4 Followers
Allison Ambrose, GC at Upstream Bio, Inc., holds 16.05K shares in Upstream Bio, Inc. (Ticker: UPB). Most recently, Allison Ambrose Sold 477 shares of Upstream Bio, Inc. on Jun 17, 2026 for an estimated value of $2.91K.
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Allison Ambrose

Allison Ambrose
Upstream Bio, Inc. (UPB)
GC

Ranked #54,009 out of 108,198 Corporate Insiders

Profitable Transactions

50%
1 out of 2 Profitable Transactions

Average Return

0.00%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$121K
100.00%
A breakdown of Allison Ambrose's holdings
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Insider Roles

Upstream Bio, Inc.
(UPB)
GC
Roles that Allison Ambrose holds in companies
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Most Profitable Insider Trade

Stock:
Upstream Bio, Inc.
(UPB)
Rating:Informative Sell
Date:Mar 17, 2026 - Today
Return:+22.40%
The most profitable trade made by Allison Ambrose
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Allison Ambrose's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
UPB
Upstream Bio, Inc.
Jun 17, 2026
GC
Informative Sell
2.91K
$120.84K
Date
Transaction
Amount
No. of Shares
Price per Share
Profit
Link to Report
Jan 06, 2026
Uninformative Buy
$0.00
17,000
$0.00
―
Mar 17, 2026
Informative Sell
$4.41K
475
$9.29
+22.40%
Jun 17, 2026
Informative Sell
$2.91K
477
$6.10
-22.40%
List of latest transactions for each holding click on a transaction to see Allison Ambrose's performance on stock
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Allison Ambrose insider profile FAQ

What is the percentage of profitable transactions made by Allison Ambrose?
The percentage of profitable transactions made by Allison Ambrose is 50%.
    What is the average return per transaction made by Allison Ambrose?
    The average return per transaction made by Allison Ambrose is 0.00%.
      What stocks does Allison Ambrose hold?
      Allison Ambrose holds: UPB stocks.
        What was Allison Ambrose’s latest transaction?
        Allison Ambrose latest transaction was an Informative Sell of $2.91K.
          What was Allison Ambrose's most profitable transaction?
          Allison Ambrose’s most profitable transaction was an Informative Sell of UPB stock on March 17, 2026. The return on the trade was 22.40%.
            What is Allison Ambrose's role in Upstream Bio, Inc.?
            Allison Ambrose's role in Upstream Bio, Inc. is GC.
              How can I follow the stock ratings of top corporate insiders?
              Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.