ADAGE CAPITAL PARTNERS GP, L.L.C.
Position in RARE — Ultragenyx Pharmaceutical Inc.
CIK 1165408
Boston, MA
Position in RARE
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$52,756,200
+$42,700,200 QoQ
Shares Held
1,580,000
+229.2% QoQ
Ownership
1.60%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
#15
of 311 holders
Holding Since
Dec 2020
23 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in RARE Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026ADAGE CAPITAL PARTNERS GP, L.L.C. holds $4,240,035,723 across 126 Biotechnology names. RARE ranks #22 (1.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ROIV |
Roivant Sciences Ltd.
|
10,349,328 | $366,262,717 | |
| 2 | PRAX |
Praxis Precision Medicines, Inc.
|
1,015,480 | $339,972,549 | |
| 3 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
393,964 | $195,693,737 | |
| 4 | TNGX |
Tango Therapeutics, Inc.
|
5,600,000 | $175,056,000 | |
| 5 | BBIO |
BridgeBio Pharma, Inc.
|
2,252,000 | $167,728,960 | |
| 6 | SYRE |
Spyre Therapeutics, Inc.
|
1,722,300 | $152,905,794 | |
| 7 | TVTX |
Travere Therapeutics, Inc.
|
2,569,356 | $145,965,114 | |
| 8 | RPRX |
Royalty Pharma plc
|
2,500,000 | $140,175,000 |
All Filings in RARE
Export CSV
23 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $52,756,200 | 1,580,000 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $10,056,000 | 480,000 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $6,440,000 | 280,000 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $12,934,400 | 430,000 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $55,611,674 | 1,529,474 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $77,815,290 | 2,149,000 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $49,772,217 | 1,183,081 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $84,754,912 | 1,525,741 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $46,237,500 | 1,125,000 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $7,003,500 | 150,000 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $49,015,500 | 1,025,000 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $3,208,500 | 90,000 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $4,963,588 | 107,600 | Shares | Other | 2023-08-14 | |
| 2023-03-31 | $4,892,200 | 122,000 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $6,486,200 | 140,000 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $6,421,117 | 155,062 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $40,568,800 | 680,000 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $50,834,000 | 700,000 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $58,863,000 | 700,000 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $55,917,800 | 620,000 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $24,791,000 | 260,000 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $21,064,100 | 185,000 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $22,910,165 | 165,500 | Shares | Sole | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||