NISA INVESTMENT ADVISORS, LLC
Position in PRTA — Prothena Corp Public Ltd Co
CIK 937615
ST. LOUIS, MO
Position in PRTA
as of Jun 30, 2026
· filed Aug 10, 2026
Position Value
$1,096
+$8 QoQ
Shares Held
112
0.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#163
of 187 holders
Holding Since
Mar 2020
25 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, 2026NISA INVESTMENT ADVISORS, LLC holds $78,277,664 across 265 Biotechnology names. PRTA ranks #231 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
56,455 | $28,042,892 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
19,412 | $12,104,158 | |
| 3 | TECH |
BIO-TECHNE Corp
|
68,452 | $4,836,133 | |
| 4 | INCY |
Incyte Corp
|
26,479 | $3,001,659 | |
| 5 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
9,139 | $2,751,113 | |
| 6 | DFTX |
Definium Therapeutics, Inc.
|
48,369 | $2,275,277 | |
| 7 | PRAX |
Praxis Precision Medicines, Inc.
|
6,111 | $2,045,901 | |
| 8 | EXEL |
Exelixis, Inc.
|
36,758 | $2,000,002 |
All Filings in PRTA
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,096 | 112 | Shares | Sole | 2026-08-10 | |
| 2026-03-31 | $1,088 | 112 | Shares | Sole | 2026-04-30 | |
| 2025-12-31 | $1,069 | 112 | Shares | Sole | 2026-01-15 | |
| 2025-09-30 | $5,777 | 592 | Shares | Sole | 2025-10-23 | |
| 2025-06-30 | $3,192 | 526 | Shares | Sole | 2025-07-31 | |
| 2025-03-31 | $15,307 | 1,237 | Shares | Sole | 2025-04-30 | |
| 2024-12-31 | $13,573 | 980 | Shares | Sole | 2025-01-17 | |
| 2024-09-30 | $20,326 | 1,215 | Shares | Sole | 2024-10-24 | |
| 2024-06-30 | $21,486 | 1,041 | Shares | Sole | 2024-07-19 | |
| 2024-03-31 | $23,531 | 950 | Shares | Sole | 2024-05-02 | |
| 2023-12-31 | $32,706 | 900 | Shares | Sole | 2024-01-25 | |
| 2023-09-30 | $72,857 | 1,510 | Shares | Sole | 2023-11-02 | |
| 2023-06-30 | $101,737 | 1,490 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $47,015 | 970 | Shares | Sole | 2023-05-02 | |
| 2022-12-31 | $31,631 | 525 | Shares | Sole | 2023-02-02 | |
| 2022-09-30 | $31,830 | 525 | Shares | Sole | 2022-11-07 | |
| 2022-06-30 | $13,575 | 500 | Shares | Sole | 2022-08-03 | |
| 2022-03-31 | $18,285 | 500 | Shares | Sole | 2022-04-29 | |
| 2021-12-31 | $171,862 | 3,479 | Shares | Sole | 2022-02-03 | |
| 2021-09-30 | $73,366 | 1,030 | Shares | Sole | 2021-10-18 | |
| 2021-06-30 | $52,952 | 1,030 | Shares | Sole | 2021-08-06 | |
| 2021-03-31 | $12,560 | 500 | Shares | Sole | 2021-04-26 | |
| 2020-09-30 | $5,744 | 575 | Shares | Sole | 2020-10-20 | |
| 2020-06-30 | $6,014 | 575 | Shares | Sole | 2020-07-27 | |
| 2020-03-31 | $6,152 | 575 | Shares | Sole | 2020-04-17 | |
| No filing history on record for this holder in this stock. | ||||||