Howard Horn

Howard Horn serves as officer: Chief Financial Officer at Ultragenyx Pharmaceutical Inc. (RARE). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

8 trades

$904.3K

Net Position

Net Seller

$904.3K

Companies Traded

2

RARE, VIR

Active Period

Feb 2022 – Apr 2026

8 total trades

Most Recent

Sell RARE

Apr 2, 2026 · $98.2K

Howard Horn's Insider Trading at Ultragenyx Pharmaceutical Inc. (RARE)

Buys

0 · $0.00

Sells

5 · $708.2K

Total Shares Bought

0

Total Shares Sold

20,144

RARE Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Apr 2, 2026	Sell	4,683	$20.97	$98.2K	80,351
Feb 3, 2026	Sell	3,061	$23.56	$72.1K	88,935
Jan 5, 2026	Sell	3,150	$22.84	$71.9K	91,996
Mar 6, 2025	Sell	1,785	$40.40	$72.1K	0
Oct 11, 2024	Sell	7,465	$52.76	$393.9K	92,301

Howard Horn's Insider Trading at Vir Biotechnology, Inc. (VIR)

Buys

0 · $0.00

Sells

3 · $196.1K

Total Shares Bought

0

Total Shares Sold

7,065

VIR Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Feb 24, 2023	Sell	2,248	$25.97	$58.4K	230,712
Feb 21, 2023	Sell	2,424	$25.29	$61.3K	232,960
Feb 22, 2022	Sell	2,393	$31.93	$76.4K	200,384

Related Insiders

Backer Marianne De

director, officer: President and CEO

VIRSell · Apr 7, 2026

SATO VICKI L

Director

VIRSell · Apr 2, 2026

Karah Herdman Parschauer

officer: EVP and Chief Legal Officer

RARESell · Mar 10, 2026

Mark Eisner

officer: EVP and Chief Medical Officer

VIRSell · Feb 26, 2026

Brent Sabatini

SVP, Chief Accounting Officer

VIRSell · Feb 18, 2026

SVF Endurance (Cayman) Ltd

10% Owner

VIRSell · Dec 3, 2025

Janet Napolitano

Director

VIRSell · Jun 2, 2025

Explore More Insider Trading Data

RARE Insider Trading Activity

View all insider trades at Ultragenyx Pharmaceutical Inc.

Healthcare Sector Insider Trades

See insider activity across healthcare stocks

Latest Insider Buys

Most recent insider purchases across all stocks

CEO Stock Purchases

Track CEO buying activity