Howard Horn Ultragenyx Pharmaceutical Inc. (RARE) insider trading activity

Howard Horn is Chief Financial Officer of Ultragenyx Pharmaceutical Inc.. Currently has a direct ownership of 95,146 shares of RARE, which is worth approximately $3.15 Million. The most recent transaction as insider was on Dec 10, 2025, when has been sold 3,081 shares (Common Stock) at a price of $36.38 per share, resulting in proceeds of $112,086. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 95.1K

10.38% 3M change

3.08% 12M change

Total Value Held $3.15 Million

Howard Horn Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Dec 10 2025	SELL Open market or private sale	$112,086 $36.38 p/Share	3,081 Reduced 3.14%	95,146 Common Stock
Oct 13 2025	SELL Open market or private sale	$250,252 $31.51 p/Share	7,942 Reduced 7.48%	98,227 Common Stock
Mar 06 2025	SELL Open market or private sale	$72,114 $40.4 p/Share	1,785 Reduced 1.65%	106,169 Common Stock
Mar 01 2025	BUY Grant, award, or other acquisition	-	15,653 Added 12.66%	107,954 Common Stock
Oct 10 2024	SELL Open market or private sale	$393,853 $52.76 p/Share	7,465 Reduced 7.48%	92,301 Common Stock
Mar 01 2024	BUY Grant, award, or other acquisition	-	19,400 Added 16.28%	99,766 Common Stock
Oct 09 2023	BUY Grant, award, or other acquisition	-	80,366 Added 50.01%	80,336 Common Stock

Also insider at

VIR

Vir Biotechnology, Inc. Healthcare

CFO

Howard Horn

Chief Financial Officer

San Francisco, CA

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