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Siren, L.L.C.

Position in AMLX — Amylyx Pharmaceuticals, Inc.

CIK 2005245 New York, NY

Position in AMLX

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$26,591,324
+$9,494,324 QoQ
Shares Held
1,480,586
+20.4% QoQ
Ownership
1.33%
of shares outstanding
% of Portfolio
0.54%
of 13F equity value
Holder Rank
#18
of 207 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AMLX Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Jun 30, 2026

Siren, L.L.C. holds $29,106,424 across 2 Drug Manufacturers - Specialty & Generic names. AMLX ranks #1 (91.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 AMLX
Amylyx Pharmaceuticals, Inc.
This page
1,480,586 $26,591,324

All Filings in AMLX

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2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $26,591,324 1,480,586
2026-03-31 $17,097,000 1,230,000