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Equibles

Propel Bio Management, LLC

Position in UPB — Upstream Bio, Inc.

CIK 1969764 LOS ANGELES, CA
Back to UPB Full portfolio

Position in UPB

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$2,424,691
-$651,320 QoQ
Shares Held
350,389
+2.5% QoQ
Ownership
0.640%
of shares outstanding
% of Portfolio
1.27%
of 13F equity value
Holder Rank
#31
of 148 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 82% Shared 18% None 0%

Common Shares in UPB Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Propel Bio Management, LLC holds $132,912,353 across 24 Biotechnology names. UPB ranks #19 (1.8% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ACHV
Achieve Life Sciences, Inc.
 4,034,018 $26,342,137
2 CORT
Corcept Therapeutics Inc
 136,499 $11,868,588
3 PHAT
Phathom Pharmaceuticals, Inc.
 1,050,358 $11,396,384
4 MIST
Milestone Pharmaceuticals Inc.
 7,429,590 $9,955,650
5 KYTX
Kyverna Therapeutics, Inc.
 883,198 $7,869,294
6 ARTV
Artiva Biotherapeutics, Inc.
 696,436 $6,755,429
7 ABEO
Abeona Therapeutics Inc.
 983,070 $6,075,372
8 PALI
Palisade Bio, Inc.
 2,582,388 $5,397,190

All Filings in UPB

Export CSV
2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,424,691 350,389
2026-03-31 $3,076,011 341,779