HUIZENGA THEODORE ALAN

PrivateCIK: 1603347
Location

NOVATO, CA

HUIZENGA THEODORE ALAN (SVP, Chief Accounting Officer) sold 0.8% of their position (341.00 shares) of ULTRAGENYX PHARMACEUTICAL INC. on the open market

Open‑market sale worth $18.3K — 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
+24.04K
Net shares
Net buyer
$24.8K
Total sold
1
Open market trades
0B · 1S
5
Total transactions
24.50K acquired · 462.00 disposed
Non-Derivative Transactions3

Common Stock

Direct
A · Award

Shares

+13.95K

Price / share

Trade value

% of position

50.0%
3/1/2024
27.89K41.84K

Common Stock

Direct
F · Tax Withholding

Shares

121.00

Price / share

$53.69

Trade value

$6.50K

% of position

0.3%
3/1/2024
41.84K41.72K

Common Stock

Direct
S · Sale

Shares

341.00

Price / share

$53.76

Trade value

$18.33K

% of position

0.8%
3/1/2024
41.72K41.38K
Total

Net shares

+13.49K

Net value

-$24.83K

Derivative Transactions2

Stock Option (Right to Buy)

Direct
A · Award
Converts to

Common Stock

8.20K shares

Shares

+8.20K

Strike price

53.69

Held after

8.20K

Exercisable

3/1/2024

Stock Option (Right to Buy)

Direct
A · Award
Converts to

Common Stock

2.35K shares

Shares

+2.35K

Strike price

67.37

Held after

2.35K

Exercisable

3/1/2024
HUIZENGA THEODORE ALAN — Insider Transaction (Form 4) Filed Mar 5, 2024 | Finecho