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 2022?

90 institutional investors reported AMLX - Amylyx Pharmaceuticals, Inc. - Common Stock, $0.0001 par value per share for Q3 2022. Use the holders table for investor-level position and value details.

CUSIP: 03237H101

Q3 2022 13F Holders as of 30 Sep 2022

Security type / class: Equity / Common Stock, $0.0001 par value per share
Total 13F shares: 36,858,311
Total 13F value: $1,037,561,470
Share change: +10,456,035
Put/Call ratio: 59%
SEC-reported price per share: $28.15
Number of holders: 90
Value change: +$315,174,073
Number of buys: 66
Number of sells: 31
Shares outstanding: 110,465,093

Security key

03237H101

Report period

Q3 2022

Institutions

Top holders

AMLX full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2022 Previous quarter: Q2 2022 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 2022 Previous quarter: Q2 2022

Recent filing periods:

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

Ownership snapshot

Top reported holders 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.

Comparable stake leader

VIKING GLOBAL INVESTORS LP

Disclosed value leader

VIKING GLOBAL INVESTORS LP

Comparable rows

15/15

Latest evidence

30 Jun 2022

13F 3/4/5 Lead comparable stake: 6.5% Showing 1-6 of 15 holder rows.

Quick read

VIKING GLOBAL INVESTORS LP leads the comparable SEC ownership view at 6.5%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens VIKING GLOBAL INVESTORS LP's linked filing trail.

Comparable ownership Top 5

VIKING GLOBAL INVESTORS LP 6.5%

PERCEPTIVE ADVISORS LLC 3.2%

Boxer Capital, LLC 2%

Bain Capital Life Sciences Invest... 1.8%

VANGUARD GROUP INC 0.9%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
VIKING GLOBAL INVESTORS LP	13F 3/4/5 Company · 10%+ Owner 13F 3/4/5	6.5%	$138,105,000 7,170,536 shares	—	30 Jun 2022
PERCEPTIVE ADVISORS LLC	13F Company 13F	3.2%	$68,188,000 3,540,408 shares	—	30 Jun 2022
Boxer Capital, LLC	13F Company 13F	2%	$42,372,000 2,200,000 shares	—	30 Jun 2022
Bain Capital Life Sciences Investors, LLC	13F Company 13F	1.8%	$37,523,000 1,948,214 shares	—	30 Jun 2022
VANGUARD GROUP INC	13F Company 13F	0.9%	$19,145,000 994,001 shares	—	30 Jun 2022
Rock Springs Capital Management LP	13F Company 13F	0.88%	$18,761,000 974,107 shares	—	30 Jun 2022

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 2022

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

Institutions

36,858,311

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-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. The marker flags a reported price that did not pass the local price check.

Compare Q3 2022 vs Q2 2022 Across Filers

Q2 2022 holders

Q3 2022 holders

Holder diff

Investor	Q2 2022 Shares	Q3 2022 Shares	Share Diff	Share Chg %	Q2 2022 value	Q3 2022 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend