Amylyx Pharmaceuticals, Inc. - Common Stock, $0.0001 par value per share (AMLX)

Q: What does CUSIP 03237H101 represent in this 13F holders report?

CUSIP 03237H101 is the security identifier for AMLX - Amylyx Pharmaceuticals, Inc. - Common Stock, $0.0001 par value per share used to aggregate holder disclosures.

Q: How many institutions held AMLX - Amylyx Pharmaceuticals, Inc. - Common Stock, $0.0001 par value per share in Q3 2023?

168 institutional investors reported AMLX - Amylyx Pharmaceuticals, Inc. - Common Stock, $0.0001 par value per share for Q3 2023. Use the holders table for investor-level position and value details.

CUSIP: 03237H101

Q3 2023 13F Holders as of 30 Sep 2023

Type / Class: Equity / Common Stock, $0.0001 par value per share
Shares outstanding: 110,465,093
Total 13F shares: 58,927,724
Share change: +5,088,302
Total reported value: $1,078,966,869
Put/Call ratio: 90%
Price per share: $18.31
Number of holders: 168
Value change: +$84,065,478
Number of buys: 101
Number of sells: 64

Security key

03237H101

Report period

Q3 2023

Institutions

168

Top holders

AMLX full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2023 Previous quarter: Q2 2023 Amylyx Pharmaceuticals, Inc. SEC filings Amylyx Pharmaceuticals, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 03237H101

Newer quarter: Q4 2023 Previous quarter: Q2 2023

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Ownership snapshot

Top shareholders of AMLX - Amylyx Pharmaceuticals, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder

VANGUARD GROUP INC

13D/G signal

—

Evidence rows

Latest as of

30 Jun 2023

13F 3/4/5 Lead comparable stake: 4.5% Showing first 8 of 50 holder rows. Open remaining rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
VANGUARD GROUP INC	13F Company 13F	4.5%	$106,251,491 4,925,892 shares	—	30 Jun 2023
PERCEPTIVE ADVISORS LLC	13F Company 13F	4.4%	$105,130,433 4,873,919 shares	—	30 Jun 2023
BlackRock Finance, Inc.	13F Company 13F	3.2%	$75,608,999 3,505,285 shares	—	30 Jun 2023
VIKING GLOBAL INVESTORS LP	13F 3/4/5 Company · 10%+ Owner 13F 3/4/5	2.7%	$63,902,311 2,962,555 shares	—	30 Jun 2023
Boxer Capital, LLC	13F Company 13F	1.9%	$44,952,000 2,084,000 shares	—	30 Jun 2023
MARSHALL WACE, LLP	13F Company 13F	1.8%	$42,712,483 1,980,180 shares	—	30 Jun 2023
MILLENNIUM MANAGEMENT LLC	13F Company 13F	1.7%	$41,449,581 1,921,631 shares	—	30 Jun 2023
D. E. Shaw & Co., Inc.	13F Company 13F	1.4%	$34,297,249 1,590,044 shares	—	30 Jun 2023

Show 42 additional holder rows in the full holder list

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Rock Springs Capital Management LP	13F Company 13F	1.4%	$33,317,367 1,544,616 shares	—	30 Jun 2023
FEDERATED HERMES, INC.	13F Company 13F	1.4%	$32,980,530 1,529,000 shares	—	30 Jun 2023
GOLDMAN SACHS GROUP INC	13F Company 13F	1.2%	$29,129,810 1,350,478 shares	—	30 Jun 2023
BALYASNY ASSET MANAGEMENT L.P.	13F Company 13F	1.1%	$25,320,009 1,173,853 shares	—	30 Jun 2023
STATE STREET CORP	13F Company 13F	1%	$24,971,567 1,157,699 shares	—	30 Jun 2023
Stonepine Capital Management, LLC	13F Company 13F	1%	$24,180,574 1,121,028 shares	—	30 Jun 2023
EVENTIDE ASSET MANAGEMENT, LLC	13F Company 13F	1%	$24,090,174 1,116,837 shares	—	30 Jun 2023
MORGAN STANLEY	13F Company 13F	0.95%	$22,688,319 1,051,846 shares	—	30 Jun 2023
DEERFIELD MANAGEMENT COMPANY, L.P.	13F Company 13F	0.95%	$22,652,771 1,050,198 shares	—	30 Jun 2023
GREAT POINT PARTNERS LLC	13F Company 13F	0.88%	$20,896,908 968,795 shares	—	30 Jun 2023
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	0.85%	$20,232,602 937,997 shares	—	30 Jun 2023
VOYA INVESTMENT MANAGEMENT LLC	13F Company 13F	0.85%	$20,222,737 937,540 shares	—	30 Jun 2023
Avidity Partners Management LP	13F Company 13F	0.82%	$19,443,198 901,400 shares	—	30 Jun 2023
Woodline Partners LP	13F Company 13F	0.81%	$19,397,901 899,300 shares	—	30 Jun 2023
Alpha Wave Global, LP	13F Company 13F	0.77%	$18,404,861 853,262 shares	—	30 Jun 2023
EMERALD ADVISERS, LLC	13F Company 13F	0.75%	$17,942,099 831,808 shares	—	30 Jun 2023
CITADEL ADVISORS LLC	13F Company 13F	0.74%	$17,543,420 813,325 shares	—	30 Jun 2023
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F Company 13F	0.7%	$16,570,074 768,200 shares	—	30 Jun 2023
EMERALD MUTUAL FUND ADVISERS TRUST	13F Company 13F	0.62%	$14,668,355 680,035 shares	—	30 Jun 2023
PICTET ASSET MANAGEMENT SA	13F Company 13F	0.54%	$12,977,504 601,646 shares	—	30 Jun 2023
Nuveen Asset Management, LLC	13F Company 13F	0.5%	$11,929,806 553,074 shares	—	30 Jun 2023
Ghost Tree Capital, LLC	13F Company 13F	0.5%	$11,863,500 550,000 shares	—	30 Jun 2023
ExodusPoint Capital Management, LP	13F Company 13F	0.46%	$11,067,000 513,091 shares	—	30 Jun 2023
NORTHERN TRUST CORP	13F Company 13F	0.44%	$10,470,466 485,418 shares	—	30 Jun 2023
JANE STREET GROUP, LLC	13F Company 13F	0.43%	$10,211,087 473,393 shares	—	30 Jun 2023
GMT CAPITAL CORP	13F Company 13F	0.42%	$9,943,770 461,000 shares	—	30 Jun 2023
FMR LLC	13F Company 13F	0.41%	$9,684,542 448,982 shares	—	30 Jun 2023
SECTORAL ASSET MANAGEMENT INC	13F Company 13F	0.35%	$8,354,277 387,310 shares	—	30 Jun 2023
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F Company 13F	0.29%	$7,020,647 325,482 shares	—	30 Jun 2023
Alyeska Investment Group, L.P.	13F Company 13F	0.29%	$6,905,786 320,157 shares	—	30 Jun 2023
Hudson Bay Capital Management LP	13F Company 13F	0.26%	$6,274,713 290,900 shares	—	30 Jun 2023
LORD, ABBETT & CO. LLC	13F Company 13F	0.22%	$5,273,000 244,493 shares	—	30 Jun 2023
Verition Fund Management LLC	13F Company 13F	0.2%	$4,769,839 221,133 shares	—	30 Jun 2023
Schonfeld Strategic Advisors LLC	13F Company 13F	0.19%	$4,538,004 210,385 shares	—	30 Jun 2023
DEUTSCHE BANK AG\	13F Company 13F	0.17%	$4,133,049 191,611 shares	—	30 Jun 2023
JPMORGAN CHASE & CO	13F Company 13F	0.17%	$4,104,685 190,296 shares	—	30 Jun 2023
Altium Capital Management LLC	13F Company 13F	0.17%	$3,990,450 185,000 shares	—	30 Jun 2023
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	13F Company 13F	0.15%	$3,604,994 167,130 shares	—	30 Jun 2023
Nantahala Capital Management, LLC	13F Company 13F	0.15%	$3,548,265 164,500 shares	—	30 Jun 2023
Bank of New York Mellon Corp	13F Company 13F	0.15%	$3,534,913 163,881 shares	—	30 Jun 2023
TWINBEECH CAPITAL LP	13F Company 13F	0.14%	$3,365,955 156,048 shares	—	30 Jun 2023
Jump Financial, LLC	13F Company 13F	0.13%	$3,051,012 141,447 shares	—	30 Jun 2023

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

168

58,927,724

Rows loaded

168

Investor	Option	Weight %	Change %	Reported value	* Price	Shares	Share Change	Activity	Report Period

* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. An asterisk next to the price means the price is likely invalid.

Compare Q3 2023 vs Q2 2023 Across Filers

Q2 2023 holders

153

Q3 2023 holders

168

Holder diff

Investor	Q2 2023 Shares	Q3 2023 Shares	Share Diff	Share Chg %	Q2 2023 value	Q3 2023 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend