Security key
03835T200
- Security type / class
- Equity / Common Shares
- Total 13F shares
- 53,424
- Total 13F value
- $247,427
- Share change
- -20,897,282
- SEC-reported price per share
- $4.64
- Number of holders
- 2
- Value change
- -$16,354,051
- Number of buys
- 1
- Number of sells
- 43
- Shares outstanding
- 2,556,332
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2023
Institutions
2
Top holders
2
03835T200 full security history
Ownership snapshot
Full 13F holder table
Aptose Biosciences Inc. SEC filings
Aptose Biosciences Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of 03835T200 - Aptose Biosciences Inc. - Common Shares (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
DRW Securities, LLC
Disclosed value leader
DRW Securities, LLC
Comparable rows
15/15
Latest evidence
31 Mar 2023
13F
Lead comparable stake: 348%
Showing 1-6 of 15 holder rows.
Quick read
DRW Securities, LLC leads the comparable SEC ownership view at 348%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens DRW Securities, LLC's linked filing trail.
Comparable ownership
Top 5
DRW Securities, LLC
348%
Nantahala Capital Management, LLC
195%
Carlson Capital, L.P.
65%
Sigma Planning Corp
57%
Annandale Capital, LLC
31%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| DRW Securities, LLC |
13F
Company
|
348%
|
$5,691,000
8,892,437 shares
|
— | 31 Mar 2023 |
| Nantahala Capital Management, LLC |
13F
Company
|
195%
|
$3,186,544
4,978,975 shares
|
— | 31 Mar 2023 |
| Carlson Capital, L.P. |
13F
Company
|
65%
|
$1,056,000
1,650,000 shares
|
— | 31 Mar 2023 |
| Sigma Planning Corp |
13F
Company
|
57%
|
$924,512
1,444,550 shares
|
— | 31 Mar 2023 |
| Annandale Capital, LLC |
13F
Company
|
31%
|
$513,000
800,000 shares
|
— | 31 Mar 2023 |
| MORGAN STANLEY |
13F
Company
|
28%
|
$450,107
703,292 shares
|
— | 31 Mar 2023 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
2
Shares
53,424
Rows available
2
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2023 vs Q1 2023 Across Filers
Q1 2023 holders
44
Q2 2023 holders
2
Holder diff
-42
| Investor | Q1 2023 Shares | Q2 2023 Shares | Share Diff | Share Chg % | Q1 2023 value | Q2 2023 value | Value change | Value Chg % |
|---|