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JANE STREET GROUP, LLC

Position in AMLX — Amylyx Pharmaceuticals, Inc.

CIK 1595888 NEW YORK, NY

Position in AMLX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$5,380,187
+$5,380,187 QoQ
Shares Held
299,565
Ownership
0.269%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#52
of 207 holders
Holding Since
Mar 2022
17 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
$314,300
CallShares
17,500
PutValue
$1,079,396
PutShares
60,100

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

JANE STREET GROUP, LLC holds $557,642,679 across 56 Drug Manufacturers - Specialty & Generic names. AMLX ranks #11 (1.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in AMLX

Export CSV
22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $314,300 17,500
2026-06-30 $5,380,187 299,565
2026-06-30 $1,079,396 60,100
2026-03-31 $190,430 13,700
2026-03-31 $165,410 11,900
2025-12-31 $375,688 31,100
2025-12-31 $3,179,877 263,235
2025-12-31 $122,008 10,100
2025-09-30 $713,475 52,500
2025-06-30 $1,198,579 186,986
2025-03-31 $1,172,394 331,185
2024-12-31 $2,893,494 765,475
2024-09-30 $1,115,119 344,173
2024-06-30 $933,102 491,107
2024-03-31 $2,918,439 1,027,620
2023-12-31 $17,033,468 1,157,165
2023-09-30 $11,009,582 601,288
2023-06-30 $10,211,086 473,393
2023-03-31 $7,770,932 264,858
2022-12-31 $5,045,780 136,557
2022-06-30 $3,459,134 179,602
2022-03-31 $375,811 29,246