NOVATO, CA
ULTRAGENYX PHARMACEUTICAL INC.RARE— Latest position per institution from SEC 13F filings
15
Institutional holders
89.07M
Total shares held
2.75B
Estimated value
4.45M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
10.65M
Value
355.75M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
10.26M
Value
236.07M
Filed
Dec 31, 2025
RTW INVESTMENTS, LP
CIK 1493215
Shares
7.80M
Value
260.34M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
6.79M
Value
226.72M
Filed
Jun 30, 2026
AQR CAPITAL MANAGEMENT LLC
CIK 1167557
Shares
6.56M
Value
214.14M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
6.16M
Value
205.64M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
5.60M
Value
230.30M
Filed
Jun 30, 2024
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
4.30M
Value
143.46M
Filed
Jun 30, 2026
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
3.62M
Value
120.91M
Filed
Jun 30, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
3.39M
Value
101.47K
Filed
Jun 30, 2026
SANDS CAPITAL MANAGEMENT, LLC
CIK 1020066
Shares
3.16M
Value
105.46M
Filed
Jun 30, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 884414
Shares
2.94M
Value
98.16M
Filed
Jun 30, 2026
FRONTIER CAPITAL MANAGEMENT CO LLC
CIK 351173
Shares
2.85M
Value
95.09M
Filed
Jun 30, 2026
BAKER BROS. ADVISORS LP
CIK 1263508
Shares
2.77M
Value
63.77M
Filed
Dec 31, 2025
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
2.58M
Value
86.12M
Filed
Jun 30, 2026
SOFINNOVA INVESTMENTS, INC.
CIK 1631134
Shares
2.22M
Value
74.04M
Filed
Jun 30, 2026
MONTANOVA CAPITAL, LLC
CIK 1569064
Shares
2.02M
Value
46.44M
Filed
Dec 31, 2025
BELLEVUE GROUP AG
CIK 1674546
Shares
1.98M
Value
66.20M
Filed
Jun 30, 2026
D. E. SHAW & CO., INC.
CIK 1009207
Shares
1.73M
Value
57.77M
Filed
Jun 30, 2026
ALKEON CAPITAL MANAGEMENT LLC
CIK 1230239
Shares
1.69M
Value
61.29M
Filed
Jun 30, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 10.65M | 355.75M | Jun 30, 2026 |
| 2 | VANGUARD GROUP INC | 102909 | 10.26M | 236.07M | Dec 31, 2025 |
| 3 | RTW INVESTMENTS, LP | 1493215 | 7.80M | 260.34M | Jun 30, 2026 |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 6.79M | 226.72M | Jun 30, 2026 |
| 5 | AQR CAPITAL MANAGEMENT LLC | 1167557 | 6.56M | 214.14M | Jun 30, 2026 |
| 6 | STATE STREET CORP | 93751 | 6.16M | 205.64M | Jun 30, 2026 |
| 7 | BLACKROCK FINANCE, INC. | 1364742 | 5.60M | 230.30M | Jun 30, 2024 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 4.30M | 143.46M | Jun 30, 2026 |
| 9 | TWO SIGMA INVESTMENTS, LP | 1179392 | 3.62M | 120.91M | Jun 30, 2026 |
| 10 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 3.39M | 101.47K | Jun 30, 2026 |
| 11 | SANDS CAPITAL MANAGEMENT, LLC | 1020066 | 3.16M | 105.46M | Jun 30, 2026 |
| 12 | JACOBS LEVY EQUITY MANAGEMENT, INC | 884414 | 2.94M | 98.16M | Jun 30, 2026 |
| 13 | FRONTIER CAPITAL MANAGEMENT CO LLC | 351173 | 2.85M | 95.09M | Jun 30, 2026 |
| 14 | BAKER BROS. ADVISORS LP | 1263508 | 2.77M | 63.77M | Dec 31, 2025 |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 2.58M | 86.12M | Jun 30, 2026 |
| 16 | SOFINNOVA INVESTMENTS, INC. | 1631134 | 2.22M | 74.04M | Jun 30, 2026 |
| 17 | MONTANOVA CAPITAL, LLC | 1569064 | 2.02M | 46.44M | Dec 31, 2025 |
| 18 | BELLEVUE GROUP AG | 1674546 | 1.98M | 66.20M | Jun 30, 2026 |
| 19 | D. E. SHAW & CO., INC. | 1009207 | 1.73M | 57.77M | Jun 30, 2026 |
| 20 | ALKEON CAPITAL MANAGEMENT LLC | 1230239 | 1.69M | 61.29M | Jun 30, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.