UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
Position in PRTA — Prothena Corp Public Ltd Co
CIK 861177
NEW YORK, NY
Position in PRTA
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$1,282
+$9 QoQ
Shares Held
131
0.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#160
of 187 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PRTA Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC holds $4,385,897,555 across 206 Biotechnology names. PRTA ranks #192 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
3,086,683 | $1,533,248,041 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
716,560 | $446,803,817 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
727,848 | $219,104,078 | |
| 4 | INCY |
Incyte Corp
|
1,508,720 | $171,028,494 | |
| 5 | RVMD |
Revolution Medicines, Inc.
|
912,335 | $170,862,094 | |
| 6 | INSM |
INSMED Inc
|
1,335,071 | $142,345,265 | |
| 7 | IONS |
Ionis Pharmaceuticals Inc
|
1,454,672 | $115,340,938 | |
| 8 | MRNA |
Moderna, Inc.
|
1,521,849 | $106,575,080 |
All Filings in PRTA
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,282 | 131 | Shares | Defined | 2026-08-13 | |
| 2026-03-31 | $1,273 | 131 | Shares | Defined | 2026-05-13 | |
| 2025-06-30 | $845,451 | 139,284 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $4,722,941 | 381,652 | Shares | Defined | 2025-05-19 | |
| 2024-12-31 | $5,283,884 | 381,508 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $8,812,491 | 526,748 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $889,067 | 43,075 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $9,292,834 | 375,165 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $10,606,443 | 291,867 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $12,836,766 | 266,047 | Shares | Defined | 2023-11-13 | |
| 2023-06-30 | $15,445,071 | 226,202 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $10,964,010 | 226,202 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $13,759,170 | 228,368 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $14,733,695 | 243,010 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $6,597,719 | 243,010 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $9,507,247 | 259,974 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $12,842,714 | 259,974 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $19,931,790 | 279,823 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $20,675,455 | 402,168 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $8,855,476 | 352,527 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $433,643 | 36,107 | Shares | Sole | 2021-03-01 | |
| 2020-09-30 | $360,708 | 36,107 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $377,678 | 36,107 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $453,304 | 42,365 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||