Position in PRTA
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$12,384,222
+$662,116 QoQ
Shares Held
1,264,987
+4.9% QoQ
Ownership
2.46%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#9
of 187 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority
Sole 98%
Shared 0%
None 2%
Common Shares in PRTA Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026TWO SIGMA INVESTMENTS, LP holds $7,273,664,878 across 342 Biotechnology names. PRTA ranks #76 (0.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,875,937 | $564,713,315 | |
| 2 | MRNA |
Moderna, Inc.
|
7,193,530 | $503,762,905 | |
| 3 | IONS |
Ionis Pharmaceuticals Inc
|
6,252,342 | $495,748,197 | |
| 4 | REGN |
Regeneron Pharmaceuticals, Inc.
|
656,124 | $409,119,558 | |
| 5 | BBIO |
BridgeBio Pharma, Inc.
|
4,722,185 | $351,708,338 | |
| 6 | EXEL |
Exelixis, Inc.
|
4,209,861 | $229,058,537 | |
| 7 | INCY |
Incyte Corp
|
2,003,559 | $227,123,448 | |
| 8 | ARGX |
Argenx SE
|
185,638 | $172,229,367 |
All Filings in PRTA
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $12,384,222 | 1,264,987 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $11,722,106 | 1,205,978 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $6,399,817 | 670,138 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $4,163,664 | 426,605 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $1,222,801 | 201,450 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $198,408 | 16,033 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $531,756 | 38,394 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $175,782 | 10,507 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $1,476,977 | 71,559 | Shares | Sole | 2024-08-14 | |
| 2023-09-30 | $6,571,794 | 136,203 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $11,111,409 | 162,733 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $17,717,675 | 365,539 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $12,256,958 | 203,435 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $8,226,581 | 135,685 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $6,256,093 | 230,427 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $9,555,411 | 261,291 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $14,891,827 | 301,454 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $22,876,654 | 321,166 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $17,324,655 | 336,990 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $7,445,015 | 296,378 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $607,477 | 50,581 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $997,111 | 99,811 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $1,195,829 | 114,324 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $880,931 | 82,330 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||