DRW Securities, LLC
Broker-DealerPosition in APTOF — Aptose Biosciences Inc.
CIK 1481986
CHICAGO, IL
Position in APTOF
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$32,921
+$3,675 QoQ
Shares Held
19,761
0.0% QoQ
Ownership
0.774%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2025
4 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in APTOF Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026DRW Securities, LLC holds $19,602,467 across 58 Biotechnology names. APTOF ranks #55 (0.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | APLS |
Apellis Pharmaceuticals, Inc.
|
33,573 | $1,350,641 | |
| 2 | PTCT |
Ptc Therapeutics, Inc.
|
18,169 | $1,237,853 | |
| 3 | KURA |
Kura Oncology, Inc.
|
132,174 | $1,074,574 | |
| 4 | FOLD |
AMICUS THERAPEUTICS, INC.
|
70,670 | $1,021,888 | |
| 5 | ARGX |
Argenx SE
|
1,247 | $910,621 | |
| 6 | MNKD |
Mannkind Corp
|
305,121 | $747,546 | |
| 7 | BMRN |
Biomarin Pharmaceutical Inc
|
12,426 | $701,944 | |
| 8 | INSM |
INSMED Inc
|
3,698 | $604,696 |
All Filings in APTOF
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $32,921 | 19,761 | Shares | Other | 2026-05-13 | |
| 2025-12-31 | $29,246 | 19,761 | Shares | Other | 2026-02-12 | |
| 2025-09-30 | $23,120 | 19,761 | Shares | Other | 2025-11-14 | |
| 2025-06-30 | $17,148 | 19,761 | Shares | Other | 2025-08-14 | |
| No filing history on record for this holder in this stock. | ||||||