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Filing Details

Accession Number:: 0001140361-22-032970
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2022-09-09 21:48:39
Reporting Period:: 2022-09-08

Accepted Time:: 2022-09-09 21:48:39
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1658551	Amylyx Pharmaceuticals Inc.	AMLX	()	DE

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1103804	Viking Global Investors Lp	55 Railroad Avenue Greenwich CT 06830	No	No	No	No
1133006	Andreas Ole Halvorsen	55 Railroad Avenue Greenwich CT 06830	No	No	No	No
1621842	C. David Ott	55 Railroad Avenue Greenwich CT 06830	No	No	No	No
1629472	Viking Global Opportunities Portfolio Gp Llc	55 Railroad Avenue Greenwich CT 06830	No	No	No	No
1629476	Viking Global Opportunities Gp Llc	55 Railroad Avenue Greenwich CT 06830	No	No	No	No
1629482	Viking Global Opportunities Illiquid Investments Sub-Master Lp	55 Railroad Avenue Greenwich CT 06830	No	No	No	No
1711393	Sharon Rose Shabet	55 Railroad Avenue Greenwich CT 06830	No	No	No	No
1886738	Viking Global Opportunities Parent Gp Llc	55 Railroad Avenue Greenwich CT 06830	No	No	No	No
1904854	Dragsa 96 Llc	55 Railroad Ave. Greenwich CT 06830	No	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2022-09-08	80,715	$27.28	4,789,821	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-08	108,631	$28.16	4,681,190	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-08	159,026	$29.14	4,522,164	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-08	15,996	$30.59	4,506,168	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-08	111,102	$32.23	4,395,066	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-08	38,116	$27.28	2,261,884	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-08	51,298	$28.16	2,210,586	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-08	75,096	$29.14	2,135,490	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-08	7,554	$30.59	2,127,936	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-08	52,466	$32.23	2,075,470	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-09	312,353	$29.87	4,082,713	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-09	156,463	$30.90	3,926,250	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-09	6,654	$31.44	3,919,596	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-09	147,502	$29.87	1,927,968	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-09	73,886	$30.90	1,854,082	No	4	S	Indirect	See Explanation of Responses
Common Stock	Disposition	2022-09-09	3,142	$31.44	1,850,940	No	4	S	Indirect	See Explanation of Responses

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses
No	4	S	Indirect	See Explanation of Responses

Footnotes

Andreas Halvorsen, David C. Ott and Rose S. Shabet are Executive Committee members of certain management entities, including Viking Global Partners LLC, the general partner of Viking Global Investors LP ("VGI") and Viking Global Opportunities Parent GP LLC ("Parent"), which is the sole member of Viking Global Opportunities GP LLC ("Opportunities GP"), which is the sole member of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP"). VGI provides managerial services to various investment funds and vehicles, including Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund") and DRAGSA 96 LLC ("DRAGSA 96"). Each of VGI, Parent, Opportunities GP, Mr. Halvorsen, Mr. Ott and Ms. Shabet (collectively the "Reporting Persons") may be deemed to beneficially own all of the securities reported on this form.
These shares are held directly by Opportunities Fund. Because of the relationship between VGI and Opportunities Fund, VGI may be deemed to beneficially own the shares held directly by Opportunities Fund.
Parent is the general partner of Opportunities GP. Opportunities GP serves as the sole member of Opportunities Portfolio GP. Opportunities Portfolio GP serves as the general partner of Opportunities Fund. Because of the relationship between Parent, Opportunities GP, Opportunities Portfolio GP and Opportunities Fund, each of Parent, Opportunities GP and Opportunities Portfolio GP may be deemed to beneficially own the shares held directly by Opportunities Fund.
The Reporting Persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose.
These shares are held directly by DRAGSA 96. Because of the relationship between VGI and DRAGSA 96, VGI may be deemed to beneficially own the shares held directly by DRAGSA 96.
The membership interests of DRAGSA 96 are held by Viking Global Opportunities Intermediate LP and Viking Global Opportunities LP. Opportunities GP is the general partner of Viking Global Opportunities Intermediate LP and Viking Global Opportunities LP. Because of the relationship between Parent, Opportunities GP and DRAGSA 96, each of Parent and Opportunities GP may be deemed to beneficially own the shares of Common Stock held directly by DRAGSA 96.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $27.00 to $27.85. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (7) through (14) of this Form 4.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.00 to $28.465.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $29.00 to $29.52.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.00 to $30.785.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $32.00 to $32.71.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $29.25 to $30.245.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $30.25 to $31.2475.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $31.25 to $31.61.