HUIZENGA THEODORE ALAN

PrivateCIK: 1603347
Location

NOVATO, CA

HUIZENGA THEODORE ALAN (SVP, Chief Accounting Officer) sold 0.2% of their position (85.00 shares) of ULTRAGENYX PHARMACEUTICAL INC. on the open market

Open‑market sale worth $2.9K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderHUIZENGA THEODORE ALANCIK 1603347
Officer· SVP, Chief Accounting Officer
Since Mar 2026
-85.00
Net shares
Net seller
$2.9K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
85.00 disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

85.00

Price / share

$34.38

Trade value

$2.92K

% of position

0.2%
12/29/2025
50.53K50.45K
Total

Net shares

85.00

Net value

-$2.92K

Derivative Transactions0
No derivative transactions reported
HUIZENGA THEODORE ALAN — Insider Transaction (Form 4) Filed Dec 30, 2025 | Finecho