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AMYLYX PHARM (AMLX)
NASDAQ
$27.81-$0.27 (-0.98%)
Price as of Oct 02, 2026 4:49 PM EDT- $3.5BMarket Cap
- 111.29%1-Year Change
- Drug Manufacturers - Specialty & GenericIndustry
AMYLYX PHARM (AMLX)
$27.81-$0.27 (-0.98%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
FMR LLC | 15.04% | 16.7M | +97,368 (+0.58%) | Jun 30, 2026 |
BLACKROCK, INC. | 7.94% | 8.8M | -1,751 (-0.02%) | Jun 30, 2026 |
PERCEPTIVE ADVISORS LLC | 7.50% | 8.3M | +50,000 (+0.60%) | Jun 30, 2026 |
TCG CROSSOVER MANAGEMENT, LLC | 5.62% | 6.2M | 0 (0.00%) | Jun 30, 2026 |
VANGUARD GROUP INC | 5.22% | 5.8M | +531,162 (+9.15%) | Dec 31, 2025 |
COMMODORE CAPITAL LP | 5.08% | 5.7M | 0 (0.00%) | Jun 30, 2026 |
N/A | 4.71% | 5.2M | +5.2M (+100.00%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
FIDELITY SECURITIES FUND | 4.08% | 4.5M | +5,400 (+0.12%) | Jul 31, 2026 |
VANGUARD INDEX FUNDS | 3.70% | 4.1M | +82,390 (+2.00%) | Jun 30, 2026 |
FIDELITY ADVISOR SERIES VII | 2.83% | 3.1M | 0 (0.00%) | Jul 31, 2026 |
FIDELITY SELECT PORTFOLIOS | 2.50% | 2.8M | 0 (0.00%) | Jul 31, 2026 |
FRANKLIN STRATEGIC SERIES | 1.35% | 1.5M | +96,303 (+6.43%) | Jul 31, 2026 |
MUTUAL FUND SERIES TRUST | 1.19% | 1.3M | -187,450 (-14.15%) | Jun 30, 2026 |
FIDELITY CAPITAL TRUST | 1.13% | 1.3M | +9,017 (+0.72%) | Jul 31, 2026 |
Current Ownership Distribution
- Institutions1.2B (79.52%)
- Mutual Funds275.6M (19.01%)
- Insiders21.4M (1.48%)
- Other0 (0.00%)
Insider Transactions
- 1.48% (21.4M)Current InsiderOwnership (%, shares)
- 1Number of InsiderBuying (last 12 months)
- $684,750.00Amount of InsiderBuying (last 12 months)
- 5Number of InsiderSelling (last 12 months)
- $792.3MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
FRATES JAMES M Chief Financial Officer | Sell | Sep 10, 2026 | $315,194.80 | 9,768 | $32.27 | 234,667 |
Mazzariello Gina Chief Legal Officer | Sell | Sep 10, 2026 | $309,139.59 | 9,525 | $32.46 | 190,849 |
Bedrosian Camille L Chief Medical Officer | Sell | Sep 10, 2026 | $256,003.86 | 7,947 | $32.21 | 280,145 |
Mazzariello Gina Chief Legal Officer | Sell | Sep 10, 2026 | $366.74 | 11 | $33.34 | 190,838 |
Klee Justin B. Co-Chief Executive Officer | Sell | Sep 10, 2026 | $932,552.93 | 29,025 | $32.13 | 3.6M |
Cohen Joshua B Co-Chief Executive Officer | Sell | Sep 10, 2026 | $950,040.16 | 29,545 | $32.16 | 3.6M |
Bedrosian Camille L Chief Medical Officer | Sell | Sep 10, 2026 | $68,864.24 | 2,081 | $33.09 | 278,064 |
Cohen Joshua B Co-Chief Executive Officer | Sell | Sep 10, 2026 | $30,463.75 | 919 | $33.15 | 3.6M |
FRATES JAMES M Chief Financial Officer | Sell | Sep 10, 2026 | $34,625.87 | 1,042 | $33.23 | 233,625 |
Klee Justin B. Co-Chief Executive Officer | Sell | Sep 10, 2026 | $47,710.33 | 1,439 | $33.16 | 3.6M |
Firestone Karen | Exempt | Aug 31, 2026 | $0.00 | 25,000 | $0.00 | 0 |
Firestone Karen | Exempt | Aug 31, 2026 | $0.00 | 25,000 | $0.00 | 0 |
Firestone Karen | Exempt | Aug 31, 2026 | $44,000.00 | 25,000 | $1.76 | 91,900 |
Firestone Karen | Exempt | Aug 31, 2026 | $126,250.00 | 25,000 | $5.05 | 116,900 |
FRATES JAMES M Chief Financial Officer | Award | Aug 18, 2026 | $0.00 | 22,807 | $0.00 | 244,435 |
Klee Justin B. Co-Chief Executive Officer | Award | Aug 18, 2026 | $0.00 | 60,039 | $0.00 | 3.6M |
Mazzariello Gina Chief Legal Officer | Award | Aug 18, 2026 | $0.00 | 21,284 | $0.00 | 200,374 |
Cohen Joshua B Co-Chief Executive Officer | Award | Aug 18, 2026 | $0.00 | 60,039 | $0.00 | 3.6M |
Mazzariello Gina Chief Legal Officer | Sell | Jul 10, 2026 | $264,121.50 | 15,000 | $17.61 | 179,090 |
Mazzariello Gina Chief Legal Officer | Sell | Jul 09, 2026 | $274,746.00 | 15,000 | $18.32 | 194,090 |
FRATES JAMES M Chief Financial Officer | Award | Mar 05, 2026 | $0.00 | 143,985 | $0.00 | 143,985 |
Mazzariello Gina Chief Legal Officer | Award | Mar 05, 2026 | $0.00 | 111,990 | $0.00 | 111,990 |
Cohen Joshua B Co-Chief Executive Officer | Award | Mar 05, 2026 | $0.00 | 373,295 | $0.00 | 373,295 |
Klee Justin B. Co-Chief Executive Officer | Award | Mar 05, 2026 | $0.00 | 373,295 | $0.00 | 373,295 |
FRATES JAMES M Chief Financial Officer | Award | Mar 05, 2026 | $0.00 | 95,990 | $0.00 | 261,628 |
Mazzariello Gina Chief Legal Officer | Award | Mar 05, 2026 | $0.00 | 74,660 | $0.00 | 209,090 |
Cohen Joshua B Co-Chief Executive Officer | Award | Mar 05, 2026 | $0.00 | 248,865 | $0.00 | 3.6M |
Klee Justin B. Co-Chief Executive Officer | Award | Mar 05, 2026 | $0.00 | 248,865 | $0.00 | 3.6M |
Mazzariello Gina Chief Legal Officer | Sell | Mar 02, 2026 | $99,378.30 | 6,844 | $14.52 | 134,430 |
Klee Justin B. Co-Chief Executive Officer | Sell | Feb 02, 2026 | $227,617.50 | 15,500 | $14.69 | 3.4M |