Company · Ownership research

Amylyx Pharmaceuticals, Inc. AMLX

CIK 0001658551 · CUSIP 03237H101

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 03237H101 (AMLX), not CUSIP 03237H901 (AMLX), CUSIP 03237H951 (AMLX), and does not merge CUSIPs.

This page lists the top 20 of 111 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	TCG Crossover Management, LLC CIK 1839948 · View history	$15.05M 4,643,812 shares	1.27%	+4.64MNew	SEC filing ↗ Nov 14, 2024	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$10.01M 3,089,645 shares	0.00%	-1.13M(-26.90%)Reduced	SEC filing ↗ Nov 13, 2024	▾
03	BlackRock, Inc. CIK 2012383 · View history	$8.26M 2,548,206 shares	0.00%	—	SEC filing ↗ Nov 13, 2024	▾
04	PERCEPTIVE ADVISORS LLC CIK 1224962 · View history	$6.89M 2,125,649 shares	0.15%	+2.13MNew	SEC filing ↗ Nov 14, 2024	▾
05	Alyeska Investment Group, L.P. CIK 1453072 · View history	$6.56M 2,023,420 shares	0.03%	+200.00K(+11.00%)Added	SEC filing ↗ Nov 14, 2024	▾
06	683 Capital Management, LLC CIK 1404574 · View history	$6.48M 2,000,000 shares	0.66%	+498.13K(+33.20%)Added	SEC filing ↗ Nov 14, 2024	▾
07	Almitas Capital LLC CIK 1596468 · View history	$6.44M 1,988,563 shares	2.28%	+84.71K(+4.40%)Added	SEC filing ↗ Nov 14, 2024	▾
08	Aberdeen Group plc CIK 1716774 · View history	$6.39M 1,972,242 shares	0.01%	+1.85M(+1,567.90%)Added	SEC filing ↗ Oct 25, 2024	▾
09	CITADEL ADVISORS LLC CIK 1423053 · View history	$6.15M 1,899,560 shares	0.01%	+554.74K(+41.30%)Added	SEC filing ↗ Nov 14, 2024	▾
10	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$5.73M 1,770,197 shares	0.02%	+558.58K(+46.10%)Added	SEC filing ↗ Nov 12, 2024	▾
11	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$5.23M 1,613,863 shares	0.00%	-996.56K(-38.20%)Reduced	SEC filing ↗ Nov 14, 2024	▾
12	Nantahala Capital Management, LLC CIK 1472322 · View history	$4.55M 1,404,564 shares	0.38%	+1.40MNew	SEC filing ↗ Nov 14, 2024	▾
13	FARALLON CAPITAL MANAGEMENT LLC CIK 909661 · Amended · View history	$3.73M 1,150,221 shares	0.02%	0(0.00%)Unchanged	SEC filing ↗ Nov 14, 2024	▾
14	BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history	$2.96M 912,515 shares	0.00%	+434.99K(+91.10%)Added	SEC filing ↗ Nov 14, 2024	▾
15	Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history	$2.85M 880,745 shares	0.01%	+258.82K(+41.60%)Added	SEC filing ↗ Nov 8, 2024	▾
16	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$2.24M 691,066 shares	0.00%	-617.12K(-47.20%)Reduced	SEC filing ↗ Nov 14, 2024	▾
17	Walleye Capital LLC CIK 1758720 · View history	$2.17M 670,594 shares	0.02%	+608.87K(+986.50%)Added	SEC filing ↗ Nov 14, 2024	▾
18	Falcon Edge Capital, LP CIK 1558858 · View history	$2.17M 669,487 shares	0.67%	+669.49KNew	SEC filing ↗ Nov 13, 2024	▾
19	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$2.10M 649,079 shares	0.00%	-2.69M(-80.60%)Reduced	SEC filing ↗ Nov 14, 2024	▾
20	CITIGROUP INC CIK 831001 · View history	$1.86M 575,005 shares	0.00%	-88.37K(-13.30%)Reduced	SEC filing ↗ Nov 12, 2024	▾

Showing 20 / 111 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

111

Cancelled or null records excluded

Disclosed shares

43,450,314

Not deduplicated across managers

Disclosed value

$140.75M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Amylyx Pharmaceuticals, Inc. · Q3 2024

Explore all 111 reporting institutions.

This page includes 20 of 111 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.