Security key
03835T309
Aptose Biosciences Inc. - Common Shares (APTO)
CUSIP: 03835T309
Q2 2024 13F Holders as of 30 Jun 2024
- Security type / class
- Equity / Common Shares
- Total 13F shares
- 2,708,592
- Total 13F value
- $2,055,953
- Share change
- +1,723,342
- SEC-reported price per share
- $0.76
- Number of holders
- 21
- Value change
- +$1,284,637
- Number of buys
- 4
- Number of sells
- 7
- Shares outstanding
- 2,587,950
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2024
Institutions
21
Top holders
10
APTO 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 APTO - 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
Donald R. Wilson Jr.
Disclosed value leader
Donald R. Wilson Jr.
Comparable rows
0/15
Latest evidence
31 Mar 2024
3/4/5
13F
Highest disclosed value: $12,885,141
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
Donald R. Wilson Jr. has the largest disclosed position value at $12.89M.
0 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 Donald R. Wilson Jr.'s linked filing trail.
Disclosed position value
Top 5
Donald R. Wilson Jr.
$12.89M
DRW Securities, LLC
$984.1K
Sigma Planning Corp
$309.5K
Nantahala Capital Management, LLC
$147K
MORGAN STANLEY
$56.3K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Donald R. Wilson Jr. |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$12,885,141
8,892,437 shares
|
— | 03 Aug 2021 |
| DRW Securities, LLC |
13F
Company
|
—
denominator unverified
|
$984,096
592,829 shares
|
— | 31 Mar 2024 |
| Sigma Planning Corp |
13F
Company
|
—
denominator unverified
|
$309,452
186,417 shares
|
— | 31 Mar 2024 |
| Nantahala Capital Management, LLC |
13F
Company
|
—
denominator unverified
|
$146,976
88,540 shares
|
— | 31 Mar 2024 |
| MORGAN STANLEY |
13F
Company
|
—
denominator unverified
|
$56,262
33,893 shares
|
— | 31 Mar 2024 |
| Annandale Capital, LLC |
13F
Company
|
—
denominator unverified
|
$44,000
26,666 shares
|
— | 31 Mar 2024 |
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 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
21
Shares
2,708,592
Rows available
21
| 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 2024 vs Q1 2024 Across Filers
Q1 2024 holders
20
Q2 2024 holders
21
Holder diff
1
| Investor | Q1 2024 Shares | Q2 2024 Shares | Share Diff | Share Chg % | Q1 2024 value | Q2 2024 value | Value change | Value Chg % |
|---|