RARE
Ultragenyx Pharm (RARE)
NASDAQ
$29.02-$0.009 (-0.03%)
Price as of Jun 23, 2026 3:03 PM EDT
  • $2.9B
    Market Cap
  • -21.18%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
VANGUARD GROUP INC
10.42%
10.3M
+131,087 (+1.28%)
Dec 31, 2025
BLACKROCK, INC.
7.41%
7.3M
+668,044 (+9.15%)
Mar 31, 2026
BLACKROCK FUNDING, INC. /DE
6.64%
6.5M
+707,669 (+10.83%)
Dec 31, 2024
BLACKROCK INC.
5.69%
5.6M
+367,614 (+6.56%)
Jun 30, 2024
N/A
5.47%
5.4M
+5.4M (+100.00%)
Mar 31, 2026
STATE STREET CORP
5.10%
5.0M
+718,395 (+14.31%)
Mar 31, 2026
AQR CAPITAL MANAGEMENT LLC
4.65%
4.6M
+3.2M (+70.28%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions1.4B (75.24%)
  • Mutual Funds463.9M (24.43%)
  • Insiders6.4M (0.33%)
  • Other0 (0.00%)

Insider Transactions

  • 0.33% (6.4M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 8
    Number of InsiderSelling (last 12 months)
  • $39.2M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Sanders Corazon (Corsee) D.
Sell
Jun 15, 2026
$50,100.00
2,000
$25.05
21,095
Parschauer Karah Herdman
EVP and Chief Legal Officer
Sell
Jun 15, 2026
$46,753.38
1,899
$24.62
94,462
Horn Howard
Chief Financial Officer
Sell
Apr 01, 2026
$98,202.51
4,683
$20.97
80,351
Parschauer Karah Herdman
EVP and Chief Legal Officer
Sell
Mar 10, 2026
$79,526.36
3,508
$22.67
66,820
Parschauer Karah Herdman
EVP and Chief Legal Officer
Sell
Mar 06, 2026
$128,785.20
6,018
$21.40
70,328
Horn Howard
Chief Financial Officer
Sell
Mar 03, 2026
$36,624.00
1,635
$22.40
85,034
KAKKIS EMIL D
President & CEO
Sell
Mar 02, 2026
$1.2M
54,404
$22.80
658,994
Pinion John Richard
See Remarks
Sell
Mar 02, 2026
$228,661.20
10,029
$22.80
110,026
Huizenga Theodore Alan
SVP, Chief Accounting Officer
In Kind
Mar 02, 2026
$3,461.72
148
$23.39
50,302
Horn Howard
Chief Financial Officer
Sell
Mar 02, 2026
$120,612.00
5,290
$22.80
89,788
Harris Erik
EVP & Chief Commercial Officer
Sell
Mar 02, 2026
$240,289.20
10,539
$22.80
89,515
Crombez Eric
EVP and Chief Medical Officer
Sell
Mar 02, 2026
$160,261.20
7,029
$22.80
76,301
Parschauer Karah Herdman
EVP and Chief Legal Officer
Sell
Mar 02, 2026
$185,478.00
8,135
$22.80
76,346
Horn Howard
Chief Financial Officer
Sell
Mar 02, 2026
$70,302.26
3,119
$22.54
86,669
Huang Dennis Karl
See Remarks
In Kind
Mar 02, 2026
$23,366.61
999
$23.39
124,729
Huizenga Theodore Alan
SVP, Chief Accounting Officer
Sell
Mar 02, 2026
$37,209.60
1,632
$22.80
48,670
Pinion John Richard
See Remarks
Award
Mar 01, 2026
$0.00
11,137
$0.00
119,565
Harris Erik
EVP & Chief Commercial Officer
Award
Mar 01, 2026
$0.00
11,643
$0.00
99,498
Horn Howard
Chief Financial Officer
Award
Mar 01, 2026
$0.00
6,143
$0.00
95,078
Parschauer Karah Herdman
EVP and Chief Legal Officer
Award
Mar 01, 2026
$0.00
11,137
$0.00
84,408
Crombez Eric
EVP and Chief Medical Officer
Award
Mar 01, 2026
$0.00
11,643
$0.00
83,173
KAKKIS EMIL D
President & CEO
Award
Mar 01, 2026
$0.00
71,177
$0.00
712,908
Huang Dennis Karl
See Remarks
Award
Mar 01, 2026
$0.00
11,137
$0.00
125,728
Horn Howard
Chief Financial Officer
Sell
Oct 13, 2025
$250,252.42
7,942
$31.51
98,227
Huizenga Theodore Alan
SVP, Chief Accounting Officer
Sell
Sep 18, 2025
$1,866.88
64
$29.17
50,242
Crombez Eric
EVP and Chief Medical Officer
Sell
May 05, 2025
$20,404.80
520
$39.24
71,530
Crombez Eric
EVP and Chief Medical Officer
Sell
Apr 21, 2025
$8,496.62
242
$35.11
71,680
Horn Howard
Chief Financial Officer
Sell
Mar 06, 2025
$72,114.00
1,785
$40.40
106,169
Kassberg Thomas Richard
CBO & EVP
Sell
Mar 03, 2025
$253,778.80
6,028
$42.10
265,238
Huizenga Theodore Alan
SVP, Chief Accounting Officer
Sell
Mar 03, 2025
$40,710.70
967
$42.10
50,265