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$RARE All transactions

Ultragenyx Pharmaceutical Inc.

F

$ Value

$3K

Shares

148

Price

$23

Filed

Mar 3

Insider

Name

Huizenga Theodore Alan

Title

SVP, Chief Accounting Officer

CIK

0001603347

Roles

Officer

Transaction Details

Transaction Date

2026-03-02

Code

F

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

50,302

Footnotes

Represents shares surrendered to the Issuer by the Reporting Person to pay required tax withholdings due to the vesting of RSUs. | Represents shares sold to pay required tax withholdings due to the vesting of RSUs. | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.54 to $23.11 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range | Includes previously reported shares of common stock underlying RSUs granted to the Reporting Person, which are subject to certain vesting conditions.

Filing Info

Accession No.

0001193125-26-089109

Form Type

4

Issuer CIK

0001515673

Huizenga Theodore Alan's History

Date Ticker Type Value
2026-03-02 RARE F $3K
2026-03-02 RARE $37K
2025-12-29 RARE $3K
2025-09-18 RARE $2K
2025-09-05 RARE $3K

Other Insiders at RARE (90d)

Insider Bought Sold Last
KAKKIS EMIL D
President & CEO
$1.2M 2026-04-16
Huizenga Theodore Alan
SVP, Chief Accounting Officer
$37K 2026-03-02
Huang Dennis Karl
See Remarks
2026-04-16
Pinion John Richard
See Remarks
$229K 2026-04-16
Crombez Eric
EVP and Chief Medical Officer
$160K 2026-04-16
Parschauer Karah Herdman
EVP and Chief Legal Officer
$394K 2026-04-16
Harris Erik
EVP & Chief Commercial Officer
$240K 2026-04-16
Horn Howard
Chief Financial Officer
$398K 2026-04-16