HORN HOWARD

PrivateCIK: 1786335
Location

NOVATO, CA

Senior insider sale

Chief Financial Officer at ULTRAGENYX PHARMACEUTICAL INC. — senior position signals high conviction

$483.7K

19.34K shares

What this filing means

HORN HOWARD plans to sell 19.34K shares of ULTRAGENYX PHARMACEUTICAL INC. valued at approximately $483.7K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderHORN HOWARDCIK 1786335
Officer· Chief Financial Officer
Since Mar 2026
19.34K
Shares to sell
$483.7K
Approx. market value
1.64K
Acquired (3 months)
1
Planned
5 completed
Securities Acquired — Last 3 Months2
Sort

Restricted Stock

Not Applicable

3/1/2026
961.00

Performance Shares

Not Applicable

3/1/2026
674.00
Total acquired1.64K
Planned & Completed Dispositions6
Sort

Completed

Completed

Units to sell

3.12K

Market value

$70.3K

3/2/2026
Completed

Units to sell

5.29K

Market value

$120.6K

3/2/2026
Completed

Units to sell

3.06K

Market value

$72.1K

2/2/2026
Completed

Units to sell

3.15K

Market value

$71.9K

1/2/2026
Completed

Units to sell

3.08K

Market value

$112.1K

12/10/2025

Planned — Approximate Date

NASDAQPlanned

Units to sell

1.64K

Market value

$36.6K

3/3/2026
Total

Units

19.34K

Value

$483.7K

HORN HOWARD — Planned Insider Sale (Form 144) | Finecho