APTO

Aptose Biosciences, Inc.
APTO

Overview Fund Activity
Delisted

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

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17 hedge funds and large institutions have $3.23M invested in Aptose Biosciences, Inc. in 2018 Q3 according to their latest regulatory filings, with 1 funds opening new positions, 7 increasing their positions, 3 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
17
Holders Change
-4
Holders Change %
-19.05%
% of All Funds
0.39%
Holding in Top 10
–
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
–
New
1
Increased
7
Reduced
3
Closed
5
Calls
$69K
Puts
–
Net Calls
+$69K
Net Calls Change
+$69K

Top Buyers

1
Renaissance Technologies
Renaissance Technologies
New York
$477K
2
DS
DRW Securities
Illinois
$573K
3
Deutsche Bank
Deutsche Bank
Germany
$439K
4
Morgan Stanley
Morgan Stanley
New York
$1.11M
5
Citadel Advisors
Citadel Advisors
Florida
$125K

Top Sellers

1
LTFS
Ladenburg Thalmann Financial Services
Florida
$16K
2
Commonwealth Equity Services
Commonwealth Equity Services
Massachusetts
$0
3
ARTA
A.R.T. Advisors
New York
$0
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
$80K
5
UBS Group
UBS Group
Switzerland
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
Morgan Stanley
1
Morgan Stanley
New York
$1.11M +$171K +146 +18%
DS
2
DRW Securities
Illinois
$573K +$251K +214 +78%
Renaissance Technologies
3
Renaissance Technologies
New York
$477K +$438K +375 +1,136%
Deutsche Bank
4
Deutsche Bank
Germany
$439K +$236K +202 +117%
PFGIA
5
Patriot Financial Group Insurance Agency
Massachusetts
$134K +$60.6K +52 +83%
Citadel Advisors
6
Citadel Advisors
Florida
$125K +$125K +107 New
Susquehanna International Group
7
Susquehanna International Group
Pennsylvania
$80K -$35.3K -30 -31%
US Bancorp
8
US Bancorp
Minnesota
$79K – – –
AA
9
Antipodean Advisors
New York
$65K – – –
Two Sigma Advisers
10
Two Sigma Advisers
New York
$51K – – –
Royal Bank of Canada
11
Royal Bank of Canada
Ontario, Canada
$50K +$2.33K +2 +5%
LTFS
12
Ladenburg Thalmann Financial Services
Florida
$16K -$148K -120 -90%
Bank of Montreal
13
Bank of Montreal
Ontario, Canada
$15K – – –
TRCT
14
Tower Research Capital (TRC)
New York
$6K +$3.6K +3 +150%
FDCDDQ
15
Federation des caisses Desjardins du Quebec
Quebec, Canada
$4.58K – – –
GCM
16
Gables Capital Management
Florida
$3K – – –
Bank of America
17
Bank of America
North Carolina
$1K -$9K -9 -90%
ARTA
18
A.R.T. Advisors
New York
– -$45K -25 Closed
Commonwealth Equity Services
19
Commonwealth Equity Services
Massachusetts
– -$45K -25 Closed
UBS Group
20
UBS Group
Switzerland
– -$13K -7 Closed
Parallax Volatility Advisers
21
Parallax Volatility Advisers
California
– -$5K -3 Closed
IA
22
IFP Advisors
Florida
– -$4K -2 Closed
BlackRock
23
BlackRock
New York
– -$1K – –