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Ultragenyx Pharmaceutical Inc.

RARE Net selling
CIK 0001515673 #1874 in the set updated 17 Sep 2026
Bought (120 mo)
$612.07K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$92.57M
$9.77M on a plan · $32.95M straight out of an exercise
Sold at will
$49.86M
152 of 239 sales
Net
−$91.96M
−$49.24M against sales at will

By person

24 insiders · 254 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
KAKKIS EMIL D
President & CEO
$612.07K (3)
$36.98M (26)
−$36.37M
7,444,206
$101.02M
+1.5%
Sharp Shalini
EVP, Finance
—
$11.97M (25) scheduled
−$11.97M
97,812
$1.33M
+106.5%
Parschauer Karah Herdman
EVP and Chief Legal Officer
—
$10.02M (35) scheduled
−$10.02M
92,562
$1.26M
+498.4%
Bedrosian Camille L
EVP and Chief Medical Officer
—
$6.04M (12) scheduled
−$6.04M
46,720
$633.99K
—
Aliski William
Director
—
$5.45M (11)
−$5.45M
185,655
$2.52M
−9.4%
Kassberg Thomas Richard
CBO & EVP
—
$3.85M (11)
−$3.85M
264,730
$3.59M
+209.2%
SIEGALL CLAY B
Director
—
$2.97M (3) scheduled
−$2.97M
2,550
$34.60K
+36.0%
Pinion John Richard
See Remarks
—
$2.84M (11)
−$2.84M
133,142
$1.81M
+1,643%
Huizenga Theodore Alan
SVP, Chief Accounting Officer
—
$2.80M (37) scheduled
−$2.80M
67,863
$920.90K
+288.1%
Harris Erik
EVP & Chief Commercial Officer
—
$2.66M (19)
−$2.66M
118,410
$1.61M
+902.3%
Fust Matthew K
Director
—
$2.32M (8) scheduled
−$2.32M
33,696
$457.25K
+155.4%
Horn Howard
Chief Financial Officer
—
$1.80M (14) scheduled
−$1.80M
96,295
$1.31M
—
Huang Dennis Karl
See Remarks
—
$914.53K (6)
−$914.53K
147,845
$2.01M
+1,181%
Dier Mardi
CFO & Executive Vice President
—
$813.79K (6)
−$813.79K
66,695
$905.05K
—
Crombez Eric
EVP and Chief Medical Officer
—
$662.61K (8)
−$662.61K
111,189
$1.51M
+299.3%
Sanders Corazon (Corsee) D.
Director
—
$339.40K (6) scheduled
−$339.40K
21,095
$286.26K
—
SULIMAN SHEHNAAZ
Director
—
$144.19K (1) scheduled
−$144.19K
27,951
$379.30K
—
WELCH DANIEL G
Director
—
—
—
40,441
$548.78K
+2,057%
NARACHI MICHAEL
Director
—
—
—
40,441
$548.78K
+2,057%
Dunsire Deborah
Director
—
—
—
38,566
$523.34K
—
Ray Amrit
Director
—
—
—
31,116
$422.24K
—
Dallas Jayson Donald Alexander
EVP & Chief Commercial Officer
—
—
—
23,830
$323.37K
+77.9%
Hogenhuis Wladimir
Chief Operating Officer
—
—
—
18,703
$253.80K
—
Ekman Lars
Director
—
—
—
17,745
$240.80K
+846.4%

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Individual transactions

59
Insider
Date
Role
Action
Shares
Price
Amount
Kassberg Thomas Richard
23 Oct 2023
CBO & EVP
Sold after exercise
39,878
$32.78
$1.31M
KAKKIS EMIL D
19 Oct 2023
President & CEO
Sold after exercise
47,853
$33.52
$1.60M
Huizenga Theodore Alan
7 Sep 2023
SVP, Chief Accounting Officer
Sold after exercise
163
$38.34
$6.25K
Huizenga Theodore Alan
7 Sep 2023
SVP, Chief Accounting Officer
Sold after exercise
2,000
$41.00
$82.00K
Parschauer Karah Herdman
8 Sep 2021
EVP and General Counsel
Sold after exercise
7,336
$100.65
$738.37K
Bedrosian Camille L
2 Sep 2021
EVP and Chief Medical Officer
Sold after exercise
2,500
$100.18
$250.45K
Bedrosian Camille L
1 Sep 2021
EVP and Chief Medical Officer
Sold after exercise
2,500
$100.03
$250.08K
Bedrosian Camille L
15 Apr 2021
EVP and Chief Medical Officer
Sold after exercise
5,000
$109.09
$545.45K
Aliski William
19 Feb 2021
Director
Sold after exercise
7,500
$149.01
$1.12M
Bedrosian Camille L
15 Jan 2021
EVP and Chief Medical Officer
Sold after exercise
25,000
$139.18
$3.48M
Huizenga Theodore Alan
7 Jan 2021
SVP, Controller and PAO
Sold after exercise
4,000
$140.65
$562.60K
Parschauer Karah Herdman
30 Oct 2020
EVP and General Counsel
Sold after exercise
9,903
$100.12
$991.49K
Parschauer Karah Herdman
28 Oct 2020
EVP and General Counsel
Sold after exercise
97
$100.00
$9.70K
Parschauer Karah Herdman
8 Oct 2020
EVP and General Counsel
Sold after exercise
10,000
$95.00
$950.00K
Parschauer Karah Herdman
6 Oct 2020
EVP and General Counsel
Sold after exercise
10,000
$90.00
$900.00K
Parschauer Karah Herdman
23 Sep 2020
EVP and General Counsel
Sold after exercise
10,000
$85.00
$850.00K
Aliski William
21 Aug 2020
Director
Sold after exercise
5,000
$86.57
$432.85K
Sharp Shalini
17 Aug 2020
CFO & Executive Vice President
Sold after exercise
3,669
$88.38
$324.27K
Sharp Shalini
17 Aug 2020
CFO & Executive Vice President
Sold after exercise
7,188
$88.38
$635.28K
Sharp Shalini
17 Aug 2020
CFO & Executive Vice President
Sold after exercise
500
$88.38
$44.19K
Sharp Shalini
17 Aug 2020
CFO & Executive Vice President
Sold after exercise
2,560
$88.54
$226.66K
Sharp Shalini
17 Aug 2020
CFO & Executive Vice President
Sold after exercise
461
$88.24
$40.68K
Parschauer Karah Herdman
17 Aug 2020
EVP and General Counsel
Sold after exercise
2,370
$88.39
$209.48K
Parschauer Karah Herdman
17 Aug 2020
EVP and General Counsel
Sold after exercise
10,000
$88.44
$884.40K
SIEGALL CLAY B
10 Aug 2020
Director
Sold after exercise
1,596
$85.01
$135.68K
SIEGALL CLAY B
10 Aug 2020
Director
Sold after exercise
9,750
$85.01
$828.85K
SIEGALL CLAY B
7 Aug 2020
Director
Sold after exercise
23,404
$85.55
$2.00M
Huizenga Theodore Alan
8 Jul 2020
SVP, Controller and PAO
Sold after exercise
2,000
$91.00
$182.00K
Huizenga Theodore Alan
8 Jul 2020
SVP, Controller and PAO
Sold after exercise
638
$91.00
$58.06K
Fust Matthew K
6 Jul 2020
Director
Sold after exercise
6,181
$90.00
$556.29K
Huizenga Theodore Alan
1 Jul 2020
SVP, Controller and PAO
Sold after exercise
1,500
$81.00
$121.50K
Huizenga Theodore Alan
1 Jul 2020
SVP, Controller and PAO
Sold after exercise
1,111
$81.00
$89.99K
Fust Matthew K
1 Jul 2020
Director
Sold after exercise
5,000
$85.00
$425.00K
Sharp Shalini
4 Jun 2020
CFO & Executive Vice President
Sold after exercise
2,564
$74.01
$189.76K
Sharp Shalini
3 Jun 2020
CFO & Executive Vice President
Sold after exercise
10,234
$74.23
$759.67K
Sharp Shalini
19 May 2020
CFO & Executive Vice President
Sold after exercise
3,907
$73.32
$286.46K
Sharp Shalini
19 May 2020
CFO & Executive Vice President
Sold after exercise
3,221
$73.32
$236.16K
Sharp Shalini
18 May 2020
CFO & Executive Vice President
Sold after exercise
2,392
$73.29
$175.31K
Sharp Shalini
18 May 2020
CFO & Executive Vice President
Sold after exercise
19,593
$73.34
$1.44M
Aliski William
18 May 2020
Director
Sold after exercise
7,500
$74.65
$559.88K
Huizenga Theodore Alan
15 May 2020
SVP, Controller and PAO
Sold after exercise
1,500
$71.00
$106.50K
Huizenga Theodore Alan
15 May 2020
SVP, Controller and PAO
Sold after exercise
961
$71.00
$68.23K
Sharp Shalini
18 Mar 2019
CFO & Executive Vice President
Sold after exercise
14,800
$70.00
$1.04M
Sharp Shalini
25 Sep 2018
CFO & Executive Vice President
Sold after exercise
6,700
$90.07
$603.47K
Huizenga Theodore Alan
15 Jun 2018
VP, Controller and PAO
Sold after exercise
955
$83.70
$79.93K
Sharp Shalini
7 Jun 2018
CFO & Executive Vice President
Sold after exercise
6,700
$80.07
$536.46K
Sharp Shalini
30 May 2018
CFO & Executive Vice President
Sold after exercise
13,000
$70.17
$912.17K
Sharp Shalini
2 Mar 2017
CFO & Executive Vice President
Sold after exercise
12,000
$90.10
$1.08M
Sharp Shalini
27 Feb 2017
CFO & Executive Vice President
Sold after exercise
12,000
$80.14
$961.68K
Aliski William
5 Dec 2016
Director
Sold after exercise
2,000
$78.70
$157.40K
Aliski William
5 Dec 2016
Director
Sold after exercise
4,000
$77.94
$311.76K
Huizenga Theodore Alan
16 Nov 2016
Controller and PAO
Sold after exercise
2,000
$79.73
$159.46K
Sharp Shalini
9 Nov 2016
CFO & Executive Vice President
Sold after exercise
700
$74.34
$52.04K
Sharp Shalini
9 Nov 2016
CFO & Executive Vice President
Sold after exercise
2,600
$73.65
$191.49K
Sharp Shalini
9 Nov 2016
CFO & Executive Vice President
Sold after exercise
3,205
$72.81
$233.36K
Sharp Shalini
9 Nov 2016
CFO & Executive Vice President
Sold after exercise
3,895
$71.68
$279.19K
Sharp Shalini
9 Nov 2016
CFO & Executive Vice President
Sold after exercise
13,600
$70.06
$952.82K
Sharp Shalini
19 Oct 2016
CFO & Senior Vice President
Sold after exercise
6,932
$61.71
$427.77K
Sharp Shalini
19 Oct 2016
CFO & Senior Vice President
Sold after exercise
5,068
$60.98
$309.05K
Showing 250 of 254 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 450
Amendments (4/A) skipped 11
Filings about a different issuer 3
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 28
Sales straight out of an exercise 59
Sales at will 152
Transactions with no price 0
Shares from compensation/vesting 3,115,818
Sales filed before the plan box existed 104
History held since 18 Oct 2016