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MORGAN STANLEY

Position in UPB — Upstream Bio, Inc.

CIK 895421 NEW YORK, NY

Position in UPB

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$3,630,451
-$1,343,030 QoQ
Shares Held
524,632
-5.1% QoQ
Ownership
0.958%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#21
of 148 holders
Holding Since
Dec 2024
7 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

MORGAN STANLEY holds $16,838,649,954 across 523 Biotechnology names. UPB ranks #179 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in UPB

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,630,451 524,632
2026-03-31 $4,973,481 552,609
2025-12-31 $3,314,144 122,068
2025-09-30 $1,646,531 87,535
2025-06-30 $1,090,400 99,308
2025-03-31 $314,511 51,391
2024-12-31 $709,598 43,163