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UPBUPB
4 quarters

Position history for Walleye Capital LLCWalleye Capital LLC's holdings in UPSTREAM BIO INC

Walleye Capital LLC holds 498,490 shares of UPB (UPSTREAM BIO INC), worth $3.4M as of 2026-Q2. This is a new position. UPB represents 0.0% of Walleye Capital LLC's portfolio.

Current Value

$3.4M

Current Shares

498,490

Total Value Change

+$3.3M

Total Shares Change

+488,490

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
New
498,490
-
$3.4M0.0%$6.92
37
2025-Q2
Exited
0
-100.0%
$00.0%$10.93
0
2025-Q1
Unchanged
10,000
0.0%
$61,2000.0%$6.87
0
2024-Q4
New
10,000
-
$164,4000.0%$17.12
31

Other major holders of UPB: FMR LLC, BlackRock, Inc.

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