AMLXAmylyx Pharmaceuticals, Inc.

$37.06

Who owns AMLX

170 institutions reported holding AMLX for 2026Q1, together 103% of the company, fewer than the 177 a quarter earlier.

170

Institutions reporting a position · as of 2026Q1 · down from 177 the quarter before

Shares held by institutions
114.1M

Shares held by institutions · 103% of the company · long US equity positions only, as reported on Form 13F

Reported value
$1.59B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
41%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
17
New positions
22
Positions exited
35
Added to
57
Reduced
48
Top 10 holdersof the company
61%
Institutional ownership by quarter, 2022Q1 to 2026Q1
QuarterFilersSharesReported value
2026Q1170114.1M$1.59B
2025Q4177112.3M$1.36B
2025Q3167109.7M$1.49B
2025Q213081.7M$524M
2025Q113673.9M$262M
2024Q412149.8M$188M
2024Q311043.5M$141M
2024Q211843.6M$83M
2024Q114349.5M$141M
2023Q417860.3M$887M
2023Q317058.9M$1.08B
2023Q215354.5M$1.18B
2023Q114651.4M$1.51B
2022Q413348.6M$1.79B
2022Q39537.4M$1.05B
2022Q27726.6M$513M
Largest reported holders, 2026Q1
HolderShares% of companyValue
FMR LLC16.6M15%$231M
BlackRock Inc.8.8M8.0%$123M
PERCEPTIVE ADVISORS LLC8.3M7.5%$115M
TCG Crossover Management, LLC6.2M5.6%$87M
VANGUARD GROUP INC5.8M5.3%$81M
Commodore Capital LP5.7M5.1%$79M
HENDERSON GROUP PLC5.0M4.5%$69M
Saturn V Capital Management LP4.3M3.9%$60M
ADAGE CAPITAL PARTNERS GP, L.L.C.3.6M3.2%$49M
First Light Asset Management, LLC3.2M2.9%$44M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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