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PRICE T ROWE ASSOCIATES INC /MD/

Position in UPB — Upstream Bio, Inc.

CIK 80255 BALTIMORE, MD

Position in UPB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$194,161
-$43,745 QoQ
Shares Held
28,058
+6.1% QoQ
Ownership
0.051%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#78
of 148 holders
Holding Since
Jun 2025
5 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

PRICE T ROWE ASSOCIATES INC /MD/ holds $17,929,584,838 across 304 Biotechnology names. UPB ranks #255 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in UPB

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5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $194,161 28,058
2026-03-31 $237,906 26,434
2025-12-31 $533,117 19,636
2025-09-30 $348,003 18,501
2025-06-30 $191,579 17,448