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Ultragenyx Pharmaceutical Inc.

RARE Net selling

CIK 0001515673 #1874 in the set updated 17 Sep 2026

Bought (12 mo)

$0.00

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$3.95M

$1.34M on a plan · $0.00 straight out of an exercise

Sold at will

$2.62M

14 of 29 sales

Net

−$3.95M

−$2.62M against sales at will

By person

16 insiders · 29 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Horn Howard

Chief Financial Officer

—

$1.33M (12) scheduled

−$1.33M

96,295

0.0977%

$1.31M

−3.5%

KAKKIS EMIL D

President & CEO

—

$1.24M (1)

−$1.24M

2,894,724

2.94%

$39.28M

+3.8%

Parschauer Karah Herdman

EVP and Chief Legal Officer

—

$487.89K (5)

−$487.89K

92,562

0.0939%

$1.26M

+56.0%

Harris Erik

EVP & Chief Commercial Officer

—

$240.29K (1)

−$240.29K

118,410

0.1201%

$1.61M

+73.5%

Pinion John Richard

See Remarks

—

$228.66K (1)

−$228.66K

133,142

0.1350%

$1.81M

+47.2%

Crombez Eric

EVP and Chief Medical Officer

—

$168.85K (2)

−$168.85K

111,189

0.1128%

$1.51M

+121.6%

SULIMAN SHEHNAAZ

Director

—

$144.19K (1) scheduled

−$144.19K

27,951

0.0284%

$379.30K

+38.4%

Huizenga Theodore Alan

SVP, Chief Accounting Officer

—

$61.66K (5)

−$61.66K

67,863

0.0688%

$920.90K

+56.2%

Sanders Corazon (Corsee) D.

Director

—

$50.10K (1)

−$50.10K

21,095

0.0214%

$286.26K

+75.7%

Kassberg Thomas Richard

CBO & EVP

—

264,730

0.2685%

$3.59M

+4.7%

Huang Dennis Karl

See Remarks

—

147,845

0.1500%

$2.01M

+78.1%

WELCH DANIEL G

Director

—

40,441

0.0410%

$548.78K

+50.1%

NARACHI MICHAEL

Director

—

40,441

0.0410%

$548.78K

+50.1%

Dunsire Deborah

Director

—

38,566

0.0391%

$523.34K

+53.8%

Fust Matthew K

Director

—

33,696

0.0342%

$457.25K

+66.8%

Ray Amrit

Director

—

31,116

0.0316%

$422.24K

+76.5%

Individual transactions

Insider

Date

Role

Action

Price

Amount

Huizenga Theodore Alan

3 Sep 2026

SVP, Chief Accounting Officer

Sell

161

$13.99

$2.25K

Sanders Corazon (Corsee) D.

15 Jun 2026

Director

Sell

2,000

$25.05

$50.10K

Crombez Eric

5 May 2026

EVP and Chief Medical Officer

Sell

344

$24.96

$8.59K

Parschauer Karah Herdman

10 Mar 2026

EVP and Chief Legal Officer

Sell

3,508

$22.67

$79.53K

Parschauer Karah Herdman

6 Mar 2026

EVP and Chief Legal Officer

Sell

6,018

$21.40

$128.79K

Crombez Eric

2 Mar 2026

EVP and Chief Medical Officer

Sell

7,029

$22.80

$160.26K

Huizenga Theodore Alan

2 Mar 2026

SVP, Chief Accounting Officer

Sell

1,632

$22.80

$37.21K

Parschauer Karah Herdman

2 Mar 2026

EVP and Chief Legal Officer

Sell

8,135

$22.80

$185.48K

KAKKIS EMIL D

2 Mar 2026

President & CEO

Sell

54,404

$22.80

$1.24M

Harris Erik

2 Mar 2026

EVP & Chief Commercial Officer

Sell

10,539

$22.80

$240.29K

Pinion John Richard

2 Mar 2026

See Remarks

Sell

10,029

$22.80

$228.66K

Huizenga Theodore Alan

29 Dec 2025

SVP, Chief Accounting Officer

Sell

$34.38

$2.92K

Horn Howard

13 Oct 2025

Chief Financial Officer

Sell

7,942

$31.51

$250.25K

Huizenga Theodore Alan

18 Sep 2025

SVP, Chief Accounting Officer

Sell

$29.17

$1.87K

Show all 29 transactions →

What was left out

Form 4 filings counted 41

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 15

Sales straight out of an exercise 0

Sales at will 14

Transactions with no price 0

Shares from compensation/vesting 459,777

History held since 18 Oct 2016