Karah Parschauer - 27 Feb 2025 Form 4 Insider Report for Ultragenyx Pharmaceutical Inc. (RARE)

Role: EVP and Chief Legal Officer
Signature: /s/ Karah Parschauer
Issuer symbol: RARE
Transactions as of: 27 Feb 2025
Net transactions value: -$128,224
Form type: 4
Filing time: 03 Mar 2025, 13:58:32 UTC
Previous filing: 21 Oct 2024
Next filing: 04 Mar 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RARE	Common Stock	Sale	$95,734	-2,230	-3.8%	$42.93	55,751	27 Feb 2025	Direct
transaction	RARE	Common Stock	Sale	$32,490	-760	-1.4%	$42.75	54,991	27 Feb 2025	Direct
transaction	RARE	Common Stock	Award	$0	+14,494	+26%	$0.000000	69,690	01 Mar 2025	Direct	F1, F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	RARE	Stock Option (Right to Buy)	Award	$0	+26,074		$0.000000	26,074	01 Mar 2025	Common Stock	26,074	$42.92	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Award of Restricted Stock Units ("RSUs") under the Company's 2023 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
F2	Includes previously reported shares of common stock underlying RSUs granted to the Reporting Person, which are subject to certain vesting conditions.
F3	Includes 205 shares acquired on October 31, 2024 under the Company's Amended and Restated Employee Stock Purchase Plan
F4	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.