Driehaus Capital Management LLC
Position in AMLX — Amylyx Pharmaceuticals, Inc.
CIK 938206
Chicago, IL
Position in AMLX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$41,521,343
+$3,958,547 QoQ
Shares Held
2,987,147
-3.9% QoQ
Ownership
2.69%
of shares outstanding
% of Portfolio
0.31%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2025
4 quarters on record
Voting authority
Sole 88.85213884686625.ToString("F0")%
Shared 0.ToString("F0")%
None 11.147861153133743.ToString("F0")%
Common Shares in AMLX Over Time
Shares Held
Position Value (USD)
Position in Drug Manufacturers - Specialty & Generic
Healthcare · as of Mar 31, 2026Driehaus Capital Management LLC holds $179,079,656 across 7 Drug Manufacturers - Specialty & Generic names. AMLX ranks #2 (23.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | INDV |
Indivior Pharmaceuticals, Inc.
|
1,880,039 | $57,303,588 | |
| 2 | AMLX |
Amylyx Pharmaceuticals, Inc.
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|
2,987,147 | $41,521,343 | |
| 3 | KNSA |
Kiniksa Pharmaceuticals International, plc
|
611,398 | $29,438,813 | |
| 4 | ALKS |
Alkermes plc.
|
791,963 | $28,003,811 | |
| 5 | ANIP |
Ani Pharmaceuticals Inc
|
121,459 | $9,340,197 | |
| 6 | ELAN |
Elanco Animal Health Inc
|
344,171 | $8,236,012 | |
| 7 | XERS |
Xeris Biopharma Holdings, Inc.
|
902,740 | $5,235,892 |
All Filings in AMLX
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4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $41,521,343 | 2,987,147 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $37,562,796 | 3,109,503 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $32,898,223 | 2,420,767 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $8,108,630 | 1,264,997 | Shares | Sole | 2025-08-14 | |
| No filing history on record for this holder in this stock. | ||||||