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Siren, L.L.C.

Position in AMLX — Amylyx Pharmaceuticals, Inc.

CIK 2005245 New York, NY

Position in AMLX

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$17,097,000
New position
Shares Held
1,230,000
first reported quarter
Ownership
1.11%
of shares outstanding
% of Portfolio
0.47%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2026
1 quarter on record
Voting authority Sole 100% Shared 0% None 0%

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Mar 31, 2026

Siren, L.L.C. holds $17,097,000 across 1 Drug Manufacturers - Specialty & Generic name. AMLX ranks #1 (100.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AMLX
Amylyx Pharmaceuticals, Inc.
This page
1,230,000 $17,097,000

All Filings in AMLX

Export CSV
1 filing row on record
Report Date Value (USD) Shares
2026-03-31 $17,097,000 1,230,000