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Equibles

683 Capital Management, LLC

Position in AMLX — Amylyx Pharmaceuticals, Inc.

CIK 1404574 NEW YORK, NY
Back to AMLX Full portfolio

Position in AMLX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$22,980,035
+$1,713,035 QoQ
Shares Held
1,279,512
-16.4% QoQ
Ownership
1.15%
of shares outstanding
% of Portfolio
2.21%
of 13F equity value
Holder Rank
#20
of 207 holders
Holding Since
Mar 2022
11 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AMLX Over Time

Shares Held

Position Value (USD)

Derivatives in AMLX

reported options exposure · as of Jun 30, 2026
CallValue
$1,734,936
CallShares
96,600
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Jun 30, 2026

683 Capital Management, LLC holds $22,980,035 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 		1,279,512 $22,980,035

All Filings in AMLX

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13 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $22,980,035 1,279,512
2026-06-30 $1,734,936 96,600
2026-03-31 $1,342,740 96,600
2026-03-31 $21,267,000 1,530,000
2025-12-31 $19,932,000 1,650,000
2025-09-30 $23,918,400 1,760,000
2025-06-30 $13,845,600 2,160,000
2025-03-31 $8,536,356 2,411,400
2024-12-31 $7,295,400 1,930,000
2024-09-30 $6,480,000 2,000,000
2024-06-30 $2,853,554 1,501,871
2022-06-30 $13,052,771 677,714
2022-03-31 $8,708,624 677,714