HORN HOWARD

PrivateCIK: 1786335
Location

NOVATO, CA

Senior insider sale

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

$382.9K

14.03K shares

What this filing means

HORN HOWARD plans to sell 14.03K shares of ULTRAGENYX PHARMACEUTICAL INC. valued at approximately $382.9K. 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
14.03K
Shares to sell
$382.9K
Approx. market value
4.70K
Acquired (3 months)
1
Planned
2 completed
Securities Acquired — Last 3 Months5
Sort

Restricted Stock

Not Applicable

3/1/2026
944.00

Performance Shares

Not Applicable

3/1/2026
661.00

Restricted Stock

Not Applicable

10/9/2025
1.35K

Restricted Stock

Not Applicable

3/1/2025
1.32K

Restricted Stock

Not Applicable

10/9/2024
421.00
Total acquired4.70K
Planned & Completed Dispositions3
Sort

Completed

Completed

Units to sell

4.65K

Market value

$110.6K

6/1/2026
Completed

Units to sell

4.68K

Market value

$116.6K

5/1/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

4.70K

Market value

$155.6K

7/1/2026
Total

Units

14.03K

Value

$382.9K