APTO

Aptose Biosciences, Inc.
APTO

Overview Fund Activity
Delisted

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

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64 hedge funds and large institutions have $85.8M invested in Aptose Biosciences, Inc. in 2021 Q3 according to their latest regulatory filings, with 11 funds opening new positions, 23 increasing their positions, 20 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
64
Holders Change
+1
Holders Change %
+1.59%
% of All Funds
1.12%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
11
Increased
23
Reduced
20
Closed
10
Calls
$251K
Puts
$370K
Net Calls
-$119K
Net Calls Change
-$50K

Top Buyers

1
6CM
1
683 Capital Management
New York
$6.79M
2
Morgan Stanley
2
Morgan Stanley
New York
$3.24M
3
Renaissance Technologies
3
Renaissance Technologies
New York
$1.58M
4
SMH
4
Sanders Morris Harris
Texas
$3.08M
5
DS
5
DRW Securities
Illinois
$19.4M

Top Sellers

1
O
1
OrbiMed
New York
$5.66M
2
EAM
2
Eventide Asset Management
Massachusetts
$0
3
CAM
3
Cormorant Asset Management
Massachusetts
$6.54M
4
OM
4
Opaleye Management
Massachusetts
$1.2M
5
VC
5
Voss Capital
Texas
$147K
Name Holding Trade Value Shares
Change 		Shares
Change %
WP
26
WealthShield Partners
North Carolina
$162K +$73.2K +75 +82%
PM
27
Prosight Management
Texas
$154K -$136K -139 -47%
Dimensional Fund Advisors
28
Dimensional Fund Advisors
Texas
$149K +$149K +152 New
VC
29
Voss Capital
Texas
$147K -$768K -784 -84%
RCG
30
Rock Creek Group
District of Columbia
$147K -$332K -339 -69%
Walleye Trading
31
Walleye Trading
New York
$135K +$135K +138 New
GS
32
Gagnon Securities
New York
$129K -$108K -111 -46%
PFGIA
33
Patriot Financial Group Insurance Agency
Massachusetts
$119K -$233K -237 -66%
XT
34
XTX Topco
Cayman Islands
$93K +$93K +95 New
Geode Capital Management
35
Geode Capital Management
Massachusetts
$70K -$57.4K -59 -45%
Simplex Trading
36
Simplex Trading
Illinois
$70K +$3.04K +2 +5%
US Bancorp
37
US Bancorp
Minnesota
$66K – – –
Wells Fargo
38
Wells Fargo
California
$55K +$47.1K +48 +600%
TRCT
39
Tower Research Capital (TRC)
New York
$54K +$54K +56 New
TCA
40
Transcend Capital Advisors
New Jersey
$50K – – –
RJA
41
Raymond James & Associates
Florida
$44K -$15.6K -16 -26%
BFEC
42
Benjamin F. Edwards & Company
Missouri
$44K +$26K +26 +144%
UBS Group
43
UBS Group
Switzerland
$40K +$20.5K +21 +105%
Wolverine Trading
44
Wolverine Trading
Illinois
$35K +$35K +33 New
Royal Bank of Canada
45
Royal Bank of Canada
Ontario, Canada
$34K +$1.94K +2 +6%
Squarepoint
46
Squarepoint
New York
$34K +$34K +34 New
WA
47
WealthTrust Axiom
Pennsylvania
$32K – – –
NFSG
48
Newbridge Financial Services Group
Florida
$32K – – –
JAWM
49
J. Arnold Wealth Management
Ohio
$31K -$2K -2 -6%
Bank of Montreal
50
Bank of Montreal
Ontario, Canada
$30K -$27.5K -22 -48%
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