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Amylyx Pharmaceuticals Inc
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32.410USD
-1.530-4.51%
Close 09-18 16:00（ET）
3.61BMarket Cap
LossP/E TTM
After-hours 17:43 (ET)32.540USD+0.150+0.46%
After-hours 17:43 (ET)Shareholding Stats
Updated: Sun, May 10
Updated: Sun, May 10
Shareholders
Shareholder Types
Shareholders
Shareholders
Proportion
Fidelity Management & Research Company LLC
13.43%
Perceptive Advisors LLC
7.45%
BlackRock Institutional Trust Company, N.A.
6.72%
TCG Crossover Management, LLC
5.62%
Commodore Capital LP
5.08%
Other
61.70%
Shareholders
Shareholders
Proportion
Fidelity Management & Research Company LLC
13.43%
Perceptive Advisors LLC
7.45%
BlackRock Institutional Trust Company, N.A.
6.72%
TCG Crossover Management, LLC
5.62%
Commodore Capital LP
5.08%
Other
61.70%
Shareholder Types
Shareholders
Proportion
Investment Advisor
42.93%
Hedge Fund
22.94%
Investment Advisor/Hedge Fund
21.26%
Individual Investor
7.91%
Private Equity
7.77%
Research Firm
4.92%
Venture Capital
3.76%
Bank and Trust
0.24%
Pension Fund
0.19%
Institutional Shareholding
Updated: Wed, Apr 1
Updated: Wed, Apr 1
Reporting Period
No. of institutions
Shares Held
Proportion
Change
2026Q1
389
115.74M
104.12%
-8.56M
2025Q4
396
113.87M
99.16%
+1.57M
2025Q3
421
112.47M
102.70%
+27.99M
2025Q2
403
84.84M
117.02%
+7.84M
2025Q1
405
77.30M
91.06%
-3.38M
2024Q4
410
53.16M
117.27%
+2.39M
2024Q3
404
54.08M
130.01%
-4.93M
2024Q2
400
54.22M
128.23%
-6.16M
2024Q1
379
60.25M
120.54%
-21.45M
2023Q4
360
66.89M
115.11%
-1.53M
View more
Shareholder Activity
Name
Shares Held
Proportion
Change
Chg %
Date
Fidelity Management & Research Company LLC
14.93M
13.5%
+3.76M
+33.68%
Dec 31, 2025
Perceptive Advisors LLC
8.28M
7.5%
-667.48K
-7.46%
Dec 31, 2025
BlackRock Institutional Trust Company, N.A.
7.48M
6.76%
+1.46M
+24.29%
Dec 31, 2025
TCG Crossover Management, LLC
6.24M
5.65%
--
--
Dec 31, 2025
Commodore Capital LP
5.65M
5.11%
--
--
Dec 31, 2025
Saturn V Capital Management LP
4.50M
4.07%
-108.39K
-2.35%
Dec 31, 2025
Janus Henderson Investors
4.47M
4.04%
+1.93M
+76.08%
Dec 31, 2025
Klee (Justin B)
3.58M
3.24%
+219.58K
+6.53%
Mar 05, 2026
Cohen (Joshua Barry)
3.58M
3.24%
+219.58K
+6.53%
Mar 05, 2026
View more
ETF Market
Updated: Sat, Dec 6
Updated: Sat, Dec 6
Name
Proportion
State Street SPDR S&P Pharmaceuticals ETF
1.5%
Direxion Daily Pharmaceutical & Medical Bl 3X ETF
1.38%
Invesco Dorsey Wright SmallCap Momentum ETF
1.15%
Invesco Dorsey Wright Healthcare Momentum ETF
1.03%
Federated Hermes MDT Small Cap Core ETF
0.51%
iShares U.S. Pharmaceuticals ETF
0.42%
iShares Micro-Cap ETF
0.19%
ProShares Ultra Nasdaq Biotechnology
0.16%
Vanguard US Momentum Factor ETF
0.14%
Fidelity Fundamental Small-Mid Cap ETF
0.13%
View more
State Street SPDR S&P Pharmaceuticals ETF
Proportion1.5%
Direxion Daily Pharmaceutical & Medical Bl 3X ETF
Proportion1.38%
Invesco Dorsey Wright SmallCap Momentum ETF
Proportion1.15%
Invesco Dorsey Wright Healthcare Momentum ETF
Proportion1.03%
Federated Hermes MDT Small Cap Core ETF
Proportion0.51%
iShares U.S. Pharmaceuticals ETF
Proportion0.42%
iShares Micro-Cap ETF
Proportion0.19%
ProShares Ultra Nasdaq Biotechnology
Proportion0.16%
Vanguard US Momentum Factor ETF
Proportion0.14%
Fidelity Fundamental Small-Mid Cap ETF
Proportion0.13%