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Equibles

Graham Capital Management, L.P.

Position in UPB — Upstream Bio, Inc.

CIK 1315421 ROWAYTON, CT
Back to UPB Full portfolio

Position in UPB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$155,755
-$216,525 QoQ
Shares Held
22,508
+64.1% QoQ
Ownership
0.041%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#83
of 148 holders
Holding Since
Dec 2025
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

Graham Capital Management, L.P. holds $44,243,780 across 71 Biotechnology names. UPB ranks #40 (0.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 TVTX
Travere Therapeutics, Inc.
 446,696 $25,376,799
2 INCY
Incyte Corp
 15,632 $1,772,043
3 IONS
Ionis Pharmaceuticals Inc
 16,717 $1,325,490
4 VKTX
Viking Therapeutics, Inc.
 22,114 $862,667
5 ALNY
Alnylam Pharmaceuticals, Inc.
 2,256 $679,123
6 ARVN
Arvinas, Inc.
 81,364 $676,134
7 PCVX
Vaxcyte, Inc.
 11,107 $645,649
8 MRVI
Maravai Lifesciences Holdings, Inc.
 92,277 $575,808

All Filings in UPB

Export CSV
2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $155,755 22,508
2025-12-31 $372,280 13,712