Security key
03835T200
- Security type / class
- Equity / Common Shares
- Total 13F shares
- 31,179,158
- Total 13F value
- $42,369,792
- Share change
- -8,767,301
- Put/Call ratio
- 60%
- SEC-reported price per share
- $1.35
- Number of holders
- 57
- Value change
- -$20,800,165
- Number of buys
- 29
- Number of sells
- 30
- Shares outstanding
- 2,556,332
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2021
Institutions
57
Top holders
10
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
30 Sep 2021
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
288%
First Light Asset Management, LLC
161%
683 Capital Management, LLC
122%
Cormorant Asset Management, LP
117%
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%
|
$19,386,000
8,892,437 shares
|
— | 30 Sep 2021 |
| Nantahala Capital Management, LLC |
13F
Company
|
288%
|
$16,035,000
7,355,730 shares
|
— | 30 Sep 2021 |
| First Light Asset Management, LLC |
13F
Company
|
161%
|
$9,000,000
4,128,443 shares
|
— | 30 Sep 2021 |
| 683 Capital Management, LLC |
13F
Company
|
122%
|
$6,786,000
3,112,737 shares
|
— | 30 Sep 2021 |
| Cormorant Asset Management, LP |
13F
Company
|
117%
|
$6,540,000
3,000,000 shares
|
— | 30 Sep 2021 |
| ORBIMED ADVISORS LLC |
13F
Company
|
101%
|
$5,656,000
2,594,348 shares
|
— | 30 Sep 2021 |
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 Q4 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
57
Shares
31,179,158
Rows available
57
| 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 Q4 2021 vs Q3 2021 Across Filers
Q3 2021 holders
63
Q4 2021 holders
57
Holder diff
-6
| Investor | Q3 2021 Shares | Q4 2021 Shares | Share Diff | Share Chg % | Q3 2021 value | Q4 2021 value | Value change | Value Chg % |
|---|