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SPHERA FUNDS MANAGEMENT LTD.

Position in UPB — Upstream Bio, Inc.

CIK 1496201 TEL AVIV, L3

Position in UPB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$1,520,324
-$1,701,676 QoQ
Shares Held
219,700
-38.6% QoQ
Ownership
0.401%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
#45
of 148 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in UPB Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

SPHERA FUNDS MANAGEMENT LTD. holds $446,002,188 across 71 Biotechnology names. UPB ranks #61 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in UPB

Export CSV
2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,520,324 219,700
2026-03-31 $3,222,000 358,000