HORN HOWARD

PrivateCIK: 1786335
Location

NOVATO, CA

HORN HOWARD (Chief Financial Officer) sold 4.2% of their position (4.65K shares) of ULTRAGENYX PHARMACEUTICAL INC. on the open market

Open‑market sale worth $110.6K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderHORN HOWARDCIK 1786335
Officer· Chief Financial Officer
Since Mar 2026
-4.65K
Net shares
Net seller
$110.6K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
4.65K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

4.65K

Price / share

$23.77

Trade value

$110.60K

% of position

4.2%
6/1/2026
110.34K105.69K
Total

Net shares

4.65K

Net value

-$110.60K

Derivative Transactions0
No derivative transactions reported
HORN HOWARD — Insider Transaction (Form 4) Filed Jun 1, 2026 | Finecho