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Y-Intercept (Hong Kong) Ltd

Position in UPB — Upstream Bio, Inc.

CIK 1772875 HONG KONG, K3

Position in UPB

as of Jun 30, 2026 · filed Jul 14, 2026
Position Value
$4,799,400
-$4,206,279 QoQ
Shares Held
693,555
-30.7% QoQ
Ownership
1.27%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#1
of 12 holders
Holding Since
Dec 2025
3 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

Y-Intercept (Hong Kong) Ltd holds $205,108,253 across 117 Biotechnology names. UPB ranks #7 (2.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 UPB
Upstream Bio, Inc.
This page
693,555 $4,799,400

All Filings in UPB

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3 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $4,799,400 693,555
2026-03-31 $9,005,679 1,000,631
2025-12-31 $1,264,076 46,559