APTO

Aptose Biosciences, Inc.
APTO

Overview Fund Activity
Delisted

APTO was delisted on the 1st of April, 2025.

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22 hedge funds and large institutions have $6.62M invested in Aptose Biosciences, Inc. in 2019 Q1 according to their latest regulatory filings, with 6 funds opening new positions, 6 increasing their positions, 4 reducing their positions, and 4 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
22
Holders Change
+2
Holders Change %
+10%
% of All Funds
0.48%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
6
Increased
6
Reduced
4
Closed
4
Calls
$50K
Puts
–
Net Calls
+$50K
Net Calls Change
+$28K

Top Buyers

1
VF
Virtu Financial
New York
$198K
2
DS
DRW Securities
Illinois
$5.14M
3
NCM
Nantahala Capital Management
Connecticut
$125K
4
Squarepoint
Squarepoint
New York
$58K
5
PFGIA
Patriot Financial Group Insurance Agency
Massachusetts
$158K

Top Sellers

1
Morgan Stanley
Morgan Stanley
New York
$526K
2
AA
Antipodean Advisors
New York
$0
3
UBS Group
UBS Group
Switzerland
$1K
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
$21K
5
LTFS
Ladenburg Thalmann Financial Services
Florida
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
DS
1
DRW Securities
Illinois
$5.14M +$171K +189 +3%
Morgan Stanley
2
Morgan Stanley
New York
$526K -$231K -255 -31%
VF
3
Virtu Financial
New York
$198K +$198K +220 New
PFGIA
4
Patriot Financial Group Insurance Agency
Massachusetts
$158K +$42.4K +47 +37%
NCM
5
Nantahala Capital Management
Connecticut
$125K +$125K +138 New
Citadel Advisors
6
Citadel Advisors
Florida
$66K +$28.9K +32 +78%
US Bancorp
7
US Bancorp
Minnesota
$61K – – –
Squarepoint
8
Squarepoint
New York
$58K +$58K +64 New
Two Sigma Advisers
9
Two Sigma Advisers
New York
$39K -$907 -1 -2%
NFG
10
Noven Financial Group
Colorado
$37K +$9.02K +10 +32%
BA
11
Boston Advisors
Massachusetts
$36K +$36K +40 New
Geode Capital Management
12
Geode Capital Management
Massachusetts
$35K – – –
Jane Street
13
Jane Street
New York
$35K +$35K +39 New
Royal Bank of Canada
14
Royal Bank of Canada
Ontario, Canada
$29K – – –
TSS
15
Two Sigma Securities
New York
$25K +$25K +28 New
Susquehanna International Group
16
Susquehanna International Group
Pennsylvania
$21K -$12.8K -14 -38%
Bank of Montreal
17
Bank of Montreal
Ontario, Canada
$12K – – –
Deutsche Bank
18
Deutsche Bank
Germany
$8K +$4.44K +5 +125%
Simplex Trading
19
Simplex Trading
Illinois
$4K +$2.4K +3 +150%
FDCDDQ
20
Federation des caisses Desjardins du Quebec
Quebec, Canada
$3.53K – – –
GCM
21
Gables Capital Management
Florida
$2K – – –
UBS Group
22
UBS Group
Switzerland
$1K -$24K -24 -96%
AA
23
Antipodean Advisors
New York
– -$48K -56 Closed
LTFS
24
Ladenburg Thalmann Financial Services
Florida
– -$11K -13 Closed
Bank of America
25
Bank of America
North Carolina
– -$2K -2 Closed
1
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