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Equibles

Ghisallo Capital Management LLC

Position in RARE — Ultragenyx Pharmaceutical Inc.

CIK 1825214 Boston, MA
Back to RARE Full portfolio

Position in RARE

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$5,008,500
+$4,530,300 QoQ
Shares Held
150,000
+1400.0% QoQ
Ownership
0.152%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#89
of 311 holders
Holding Since
Dec 2023
2 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in RARE Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Ghisallo Capital Management LLC holds $223,098,750 across 50 Biotechnology names. RARE ranks #13 (2.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MLYS
Mineralys Therapeutics, Inc.
 1,125,000 $30,352,500
2 LEGN
Legend Biotech Corp
 1,000,000 $28,880,000
3 NTLA
Intellia Therapeutics, Inc.
 1,200,000 $20,304,000
4 CYTK
Cytokinetics Inc
 170,000 $14,482,300
5 RVMD
Revolution Medicines, Inc.
 50,000 $9,364,000
6 ABVX
Abivax S.A.
 48,000 $6,396,480
7 ALLO
Allogene Therapeutics, Inc.
 3,000,000 $6,240,000
8 KOD
Kodiak Sciences Inc.
 150,000 $5,844,000

All Filings in RARE

Export CSV
2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $5,008,500 150,000
2023-12-31 $478,200 10,000