Position in PRTA
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$12,665
-$5,737 QoQ
Shares Held
1,303
-32.4% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
16 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, 2026SIMPLEX TRADING, LLC holds $82,538,439 across 183 Biotechnology names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MRNA |
Moderna, Inc.
|
154,558 | $10,823,696 | |
| 2 | QURE |
uniQure N.V.
|
110,219 | $5,076,687 | |
| 3 | ERAS |
Erasca, Inc.
|
276,988 | $5,074,420 | |
| 4 | AXSM |
Axsome Therapeutics, Inc.
|
19,643 | $4,808,017 | |
| 5 | BBIO |
BridgeBio Pharma, Inc.
|
55,535 | $4,136,246 | |
| 6 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
11,567 | $3,482,014 | |
| 7 | ARWR |
Arrowhead Pharmaceuticals, Inc.
|
29,002 | $2,363,953 | |
| 8 | SLS |
SELLAS Life Sciences Group, Inc.
|
154,099 | $2,274,501 |
All Filings in PRTA
Export CSV
16 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $12,665 | 1,303 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $18,402 | 1,927 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $410,349 | 42,044 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $262,612 | 43,264 | Shares | Sole | 2025-08-05 | |
| 2024-09-30 | $99,995 | 5,977 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $46,790 | 2,267 | Shares | Sole | 2024-07-25 | |
| 2024-03-31 | $178,789 | 7,218 | Shares | Sole | 2024-04-25 | |
| 2022-09-30 | $1,434,869 | 23,666 | Shares | Sole | 2022-11-04 | |
| 2022-06-30 | $87,721 | 3,231 | Shares | Sole | 2022-08-03 | |
| 2021-09-30 | $4,416 | 62 | Shares | Sole | 2021-10-28 | |
| 2021-06-30 | $28,892 | 562 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $219,473 | 8,737 | Shares | Sole | 2021-04-26 | |
| 2020-12-31 | $106,780 | 8,891 | Shares | Sole | 2021-02-02 | |
| 2020-09-30 | $68,551 | 6,862 | Shares | Sole | 2020-10-14 | |
| 2020-06-30 | $13,608 | 1,301 | Shares | Sole | 2020-07-13 | |
| 2020-03-31 | $47,903 | 4,477 | Shares | Sole | 2020-04-29 | |
| No filing history on record for this holder in this stock. | ||||||