Position in MCRB
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$36,278
+$9,048 QoQ
Shares Held
4,598
+49.8% QoQ
Ownership
0.046%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#19
of 36 holders
Holding Since
Sep 2020
19 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MCRB Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026SIMPLEX TRADING, LLC holds $82,521,702 across 182 Biotechnology names. MCRB ranks #112 (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 MCRB
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $36,278 | 4,598 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $27,230 | 3,070 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $18,332 | 1,232 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $54,006 | 2,807 | Shares | Sole | 2025-11-12 | |
| 2024-12-31 | $20,572 | 24,756 | Shares | Sole | 2025-02-11 | |
| 2024-09-30 | $2 | 2,624 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $56,434 | 77,948 | Shares | Sole | 2024-07-25 | |
| 2024-03-31 | $57,176 | 73,871 | Shares | Sole | 2024-04-25 | |
| 2023-12-31 | $63,435 | 45,311 | Shares | Sole | 2024-02-02 | |
| 2023-09-30 | $152,798 | 64,201 | Shares | Sole | 2023-11-01 | |
| 2023-06-30 | $292,285 | 61,020 | Shares | Sole | 2023-08-04 | |
| 2023-03-31 | $652,617 | 115,100 | Shares | Sole | 2023-04-27 | |
| 2022-12-31 | $27,680 | 4,943 | Shares | Sole | 2023-02-02 | |
| 2021-12-31 | $73,453 | 8,818 | Shares | Sole | 2022-02-23 | |
| 2021-09-30 | $432,661 | 62,164 | Shares | Sole | 2021-10-28 | |
| 2021-06-30 | $1,175,375 | 49,282 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $672,078 | 32,641 | Shares | Sole | 2021-04-26 | |
| 2020-12-31 | $272,464 | 11,121 | Shares | Sole | 2021-02-02 | |
| 2020-09-30 | $1,042,544 | 36,826 | Shares | Sole | 2020-10-14 | |
| No filing history on record for this holder in this stock. | ||||||