Karah Herdman Parschauer - 12 Sep 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: 12 Sep 2025
Net transactions value: -$76,366
Form type: 4
Filing time: 12 Sep 2025, 16:11:58 UTC
Previous filing: 30 May 2025
Next filing: 19 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Parschauer Karah Herdman	EVP and Chief Legal Officer	C/O ULTRAGENYX PHARMACEUTICAL INC., 60 LEVERONI COURT, NOVATO	/s/ Karah Parschauer	12 Sep 2025	0001677455

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RARE	Common Stock	Sale	$76,366	-2,450	-3.2%	$31.17	73,271	12 Sep 2025	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Includes 434 shares acquired under the Company's A&R 2014 Employee Stock Purchase Plan on April 30, 2025.
F2	Includes previously reported shares of common stock underlying RSUs granted to the Reporting Person, which are subject to certain vesting conditions.