Position in SEER
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$1,439
+$1,438 QoQ
Shares Held
867
+21.8% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#52
of 59 holders
Holding Since
Dec 2021
8 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in SEER Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026SIMPLEX TRADING, LLC holds $83,352,766 across 183 Biotechnology names. SEER ranks #171 (0.0% of the industry book) .
| # | 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 SEER
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,439 | 867 | Shares | Sole | 2026-08-12 | |
| 2025-03-31 | $1 | 712 | Shares | Sole | 2025-05-12 | |
| 2024-12-31 | $5 | 2,477 | Shares | Sole | 2025-02-11 | |
| 2023-12-31 | $172 | 89 | Shares | Sole | 2024-02-02 | |
| 2023-06-30 | $269 | 63 | Shares | Sole | 2023-08-04 | |
| 2022-06-30 | $1,745 | 195 | Shares | Sole | 2022-08-03 | |
| 2022-03-31 | $73,075 | 4,795 | Shares | Sole | 2022-05-02 | |
| 2021-12-31 | $313,226 | 13,732 | Shares | Sole | 2022-02-23 | |
| No filing history on record for this holder in this stock. | ||||||