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UPB
Upstream Bio, Inc.
Investor Moves
Investor
Portfolio Value
Portfolio Change
Position Change
Avg Buy Price
Current Price
Steven Cohen
Point72
$1.7M
189.7k shares
Add
Q1 2026
$1.4M
$9.00
$8.32
Ken Griffin
Citadel Advisors
$-635.9K
Exit
Q1 2026
$636k
--
$8.32
Jim Simons
Renaissance Technologies
$559k
62.1k shares
Add
Q1 2026
$114k
$9.00
$8.32
Ken Griffin
Citadel Advisors
$-3.0M
Exit
Q1 2025
$3.0M
--
$8.32
Ken Griffin
Citadel Advisors
$-3.0M
Exit
Q1 2025
$3.0M
--
$8.32
George Soros
Soros Fund Management
$-762.0K
Exit
Q1 2025
$762k
--
$8.32