Position in ALDX
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$61,678
-$144,252 QoQ
Shares Held
28,957
-27.2% QoQ
Ownership
0.048%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#63
of 108 holders
Holding Since
Mar 2020
21 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ALDX 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. ALDX ranks #98 (0.1% 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 ALDX
Export CSV
21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $61,678 | 28,957 | Shares | Sole | 2026-08-12 | |
| 2025-12-31 | $205,930 | 39,755 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $152,298 | 29,176 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $81,130 | 21,183 | Shares | Sole | 2025-08-05 | |
| 2025-03-31 | $27,088 | 4,711 | Shares | Sole | 2025-05-12 | |
| 2024-12-31 | $225,707 | 45,232 | Shares | Sole | 2025-02-11 | |
| 2024-06-30 | $96,989 | 29,302 | Shares | Sole | 2024-07-25 | |
| 2024-03-31 | $305,630 | 93,465 | Shares | Sole | 2024-04-25 | |
| 2023-12-31 | $75,738 | 21,578 | Shares | Sole | 2024-02-02 | |
| 2023-09-30 | $478,548 | 71,639 | Shares | Sole | 2023-11-01 | |
| 2023-03-31 | $668,537 | 67,325 | Shares | Sole | 2023-04-27 | |
| 2022-06-30 | $124,683 | 31,249 | Shares | Sole | 2022-08-03 | |
| 2022-03-31 | $612,258 | 137,741 | Shares | Sole | 2022-05-02 | |
| 2021-12-31 | $374,956 | 93,739 | Shares | Sole | 2022-02-23 | |
| 2021-09-30 | $182,711 | 20,810 | Shares | Sole | 2021-10-28 | |
| 2021-06-30 | $237,080 | 20,925 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $161,164 | 13,566 | Shares | Sole | 2021-04-26 | |
| 2020-12-31 | $114,884 | 16,747 | Shares | Sole | 2021-02-02 | |
| 2020-09-30 | $6,995 | 944 | Shares | Sole | 2020-10-14 | |
| 2020-06-30 | $4,808 | 1,153 | Shares | Sole | 2020-07-13 | |
| 2020-03-31 | $11,161 | 4,519 | Shares | Sole | 2020-04-29 | |
| No filing history on record for this holder in this stock. | ||||||