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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1515673	Ultragenyx Pharmaceutical Inc.	RARE	Pharmaceutical Preparations (2834)	272546083

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1603347	Alan Theodore Huizenga	C/O Ultragenyx Pharmaceutical Inc. 60 Leveroni Court Novato CA 94949	Svp, Chief Accounting Officer	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	2022-03-01	843	$66.62	13,229	No	4	S	Direct
Common Stock	Acquisiton	2022-03-01	3,710	$0.00	17,046	No	4	A	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Acquisiton	2022-03-01	7,400	$0.00	7,400	$67.37

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
7,400		2032-03-01	No	4	A	Direct

Footnotes

Represents shares sold to pay required tax withholdings due to the vesting of Restricted Stock Units ("RSUs").
Award of RSUs under the Company's 2014 Incentive Plan. The RSUs shall vest with respect to 1/4th of the underlying shares on each anniversary of the grant date, such that the RSUs are fully vested on the fourth anniversary of the grant date.
Includes 107 shares acquired under the Company's 2014 Employee Stock Purchase Plan on October 29, 2021.
Includes previously reported shares of common stock underlying RSUs granted to the Reporting Person, which are subject to certain vesting conditions.
On the first anniversary of the grant date of the option (the "Option Anniversary Date"), 1/4th of the shares initially subject to the option shall vest; thereafter, 1/48th of the shares initially subject to the option shall vest on each month as measured from the Option Anniversary Date.