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BNP PARIBAS ARBITRAGE, SA

Position in UPB — Upstream Bio, Inc.

CIK 1166588 NEW YORK, NY

Position in UPB

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$3,539,898
+$2,405,898 QoQ
Shares Held
511,546
+306.0% QoQ
Ownership
0.934%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#22
of 148 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in UPB Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

BNP PARIBAS ARBITRAGE, SA holds $3,331,911,027 across 414 Biotechnology names. UPB ranks #84 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in UPB

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,539,898 511,546
2026-03-31 $1,134,000 126,000
2025-12-31 $135,098 4,976
2025-09-30 $122,772 6,527
2025-06-30 $34,005 3,097
2025-03-31 $5,746 939
2024-12-31 $24,840 1,511