APTO

Aptose Biosciences, Inc.
APTO

Overview Fund Activity
Delisted

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

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15 hedge funds and large institutions have $487K invested in Aptose Biosciences, Inc. in 2025 Q1 according to their latest regulatory filings, with 3 funds opening new positions, 3 increasing their positions, 9 reducing their positions, and 14 closing their positions.

Holders
15
Holders Change
-11
Holders Change %
-42.31%
% of All Funds
0.2%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
3
Increased
3
Reduced
9
Closed
14
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Citadel Advisors
1
Citadel Advisors
Florida
$38K
2
Northwestern Mutual Wealth Management
2
Northwestern Mutual Wealth Management
Wisconsin
$6.49K
3
Royal Bank of Canada
3
Royal Bank of Canada
Ontario, Canada
$4K
4
National Bank of Canada
4
National Bank of Canada
Quebec, Canada
$293
5
JPMorgan Chase & Co
5
JPMorgan Chase & Co
New York
$8

Top Sellers

1
BL
1
Bleichroeder LP
New York
$382K
2
SPC
2
Sigma Planning Corp
Michigan
$54.8K
3
DS
3
DRW Securities
Illinois
$0
4
Morgan Stanley
4
Morgan Stanley
New York
$318
5
UBS Group
5
UBS Group
Switzerland
$0
Name Market Value Shares Shares
Change 		Shares
Change %
BL
1
Bleichroeder LP
New York
$382K 121,366 -2,378,634 -95%
SPC
2
Sigma Planning Corp
Michigan
$54.8K 17,389 -685,995 -98%
Citadel Advisors
3
Citadel Advisors
Florida
$38K 12,007 +12,007 New
Northwestern Mutual Wealth Management
4
Northwestern Mutual Wealth Management
Wisconsin
$6.49K 2,060 +1,927 +1,449%
Royal Bank of Canada
5
Royal Bank of Canada
Ontario, Canada
$4K 1,351 +677 +100%
FDCDDQ
6
Federation des caisses Desjardins du Quebec
Quebec, Canada
$319 103 +1 +1%
Morgan Stanley
7
Morgan Stanley
New York
$318 101 -5,400 -98%
National Bank of Canada
8
National Bank of Canada
Quebec, Canada
$293 93 +93 New
GG
9
Gleason Group
Kentucky
$126 40 -1,176 -97%
NFSG
10
Newbridge Financial Services Group
Florida
$82 26 -806 -97%
TWC
11
TD Waterhouse Canada
Ontario, Canada
$35 22 -662 -97%
HWM
12
HighMark Wealth Management
Minnesota
$28 9 -291 -97%
SS
13
SBI Securities
Japan
$13 4 -131 -97%
Group One Trading
14
Group One Trading
Illinois
$9 3 -112 -97%
JPMorgan Chase & Co
15
JPMorgan Chase & Co
New York
$8 36 +36 New
DS
16
DRW Securities
Illinois
– – -592,829 Closed
UBS Group
17
UBS Group
Switzerland
– – -57,827 Closed
HF
18
HRT Financial
New York
– – -43,112 Closed
AC
19
Annandale Capital
Texas
– – -26,666 Closed
NFG
20
Nations Financial Group
Iowa
– – -19,500 Closed
Cetera Investment Advisers
21
Cetera Investment Advisers
Illinois
– – -19,206 Closed
TSS
22
Two Sigma Securities
New York
– – -11,398 Closed
US Bancorp
23
US Bancorp
Minnesota
– – -2,020 Closed
Osaic Holdings
24
Osaic Holdings
Arizona
– – -420 Closed
CSC
25
Caldwell Sutter Capital
California
– – -92 Closed
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