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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1564824	Allakos Inc.	ALLK	Pharmaceutical Preparations (2834)	454798831

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1637219	Adam Tomasi	975 Island Drive, Suite 201 Redwood City CA 94065	President, Coo And Cfo	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2021-03-03	3,189	$113.56	153,126	No	4	S	Direct
Common Stock	Acquisiton	2021-03-02	1,717	$117.82	156,315	No	4	F	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct
No	4	F	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	3,953	Indirect	See footnote

Footnotes

This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 18, 2020. This transaction was executed in multiple trades at prices ranging from $111.59 to $116.78 per share. The sale price reported represents the weighted average sale price . Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person hereby undertakes to provide full information regarding the number of shares sold at each separate price.
Includes shares of common stock purchased under the Company's 2018 Employee Stock Purchase Plan.
Shares withheld to satisfy the tax obligations by the reporting person in connection with the vesting of RSUs.
Includes 3,953 shares received as a pro-rata in-kind distribution of Common Stock of the Issuer by Alta Partners Management VIII, LLC (APM VIII), without consideration, to the reporting person as a non-managing member of APM VIII.
The shares are held by Mr. Tomasi and Carrie Tomasi, as Trustees of the Tomasi Living Trust dated July 14, 2017.