Amylyx Pharmaceuticals Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:AMLX Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
05 Mar 24	SellUS$33,560	James Frates	Individual	1,792	US$18.73
05 Mar 24	SellUS$28,841	Gina Mazzariello	Individual	1,540	US$18.73
05 Mar 24	SellUS$77,440	Justin Klee	Individual	4,135	US$18.73
05 Mar 24	SellUS$77,440	Joshua Cohen	Individual	4,135	US$18.73
23 Feb 24	SellUS$53,231	Gina Mazzariello	Individual	2,838	US$18.76
09 Jan 24	SellUS$45,915	Patrick Yeramian	Individual	2,812	US$16.33
09 Jan 24	SellUS$95,372	Joshua Cohen	Individual	5,841	US$16.33
09 Jan 24	SellUS$44,347	James Frates	Individual	2,716	US$16.33
09 Jan 24	SellUS$95,372	Justin Klee	Individual	5,841	US$16.33
15 Dec 23	BuyUS$59,880	Karen Firestone	Individual	4,000	US$14.97
25 Sep 23	SellUS$51,207,798	The Morningside Group Limited	Company	2,305,619	US$22.21
16 Aug 23	SellUS$39,240,000	The Morningside Group Limited	Company	2,000,000	US$19.62

Insider Trading Volume

Insider Buying: AMLX insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of AMLX?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	12,314	0.0154%
Individual Insiders	6,836,555	8.58%
VC/PE Firms	9,995,280	12.5%
Institutions	62,879,286	78.9%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 85.69% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
8.55%	ALS Investment Fund	5,795,280	US$11.6m	0%	no data
7.78%	The Vanguard Group, Inc.	5,275,566	US$10.6m	4.46%	no data
6.2%	Panacea Venture Management Co., Ltd.	4,200,000	US$8.4m	0%	18.98%
5.9%	BlackRock, Inc.	4,002,334	US$8.0m	11.9%	no data
4.72%	Point72 Asset Management, L.P.	3,202,381	US$6.4m	1,330%	0.01%
4.37%	Viking Global Investors LP	2,962,555	US$6.0m	0%	0.02%
4.14%	Joshua Cohen	2,808,835	US$5.6m	0.31%	no data
4.05%	Justin Klee	2,745,141	US$5.5m	0.79%	no data
4.03%	Morgan Stanley, Investment Banking and Brokerage Investments	2,733,290	US$5.5m	231%	no data
3.69%	Stonepine Capital Management LLC	2,500,000	US$5.0m	-0.63%	2.52%
3.41%	The Morningside Group Limited	2,313,227	US$4.6m	0%	0.65%
3.35%	Millennium Management LLC	2,272,643	US$4.6m	7.22%	no data
3.31%	Citadel Advisors LLC	2,240,885	US$4.5m	82.6%	no data
2.76%	Perceptive Advisors LLC	1,869,125	US$3.8m	-30.5%	0.09%
2.15%	Emerald Advisers, LLC	1,459,140	US$2.9m	-4%	0.07%
2.13%	State Street Global Advisors, Inc.	1,441,402	US$2.9m	16.3%	no data
2.12%	FMR LLC	1,436,151	US$2.9m	227%	no data
1.95%	Franklin Resources, Inc.	1,322,096	US$2.7m	115%	no data
1.71%	Jane Street Group, LLC, Asset Management Arm	1,157,165	US$2.3m	92.5%	no data
1.65%	Eventide Asset Management, LLC	1,116,837	US$2.2m	0%	0.04%
1.62%	Saturn V Capital Management LP	1,099,268	US$2.2m	24.1%	0.96%
1.57%	Jupiter Fund Management Plc	1,060,900	US$2.1m	63.3%	0.01%
1.52%	Geode Capital Management, LLC	1,030,716	US$2.1m	4.95%	no data
1.5%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	1,019,413	US$2.0m	2%	no data
1.5%	Goldman Sachs Asset Management, L.P.	1,016,175	US$2.0m	9.07%	no data