APTO

Aptose Biosciences, Inc.
APTO

Overview Fund Activity
Delisted

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

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65 hedge funds and large institutions have $214M invested in Aptose Biosciences, Inc. in 2020 Q4 according to their latest regulatory filings, with 17 funds opening new positions, 18 increasing their positions, 18 reducing their positions, and 14 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
65
Holders Change
+1
Holders Change %
+1.56%
% of All Funds
1.15%
Holding in Top 10
3
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-40%
% of All Funds
0.05%
New
17
Increased
18
Reduced
18
Closed
14
Calls
$1.59M
Puts
$463K
Net Calls
+$1.12M
Net Calls Change
-$288K

Top Buyers

1
O
1
OrbiMed
New York
$35.2M
2
DS
2
DRW Securities
Illinois
$34.9M
3
EAM
3
Eventide Asset Management
Massachusetts
$10.1M
4
SI
4
Sofinnova Investments
California
$4.3M
5
FLAM
5
First Light Asset Management
Minnesota
$3.68M

Top Sellers

1
CCM
1
Consonance Capital Management
New York
$0
2
Point72 Asset Management
2
Point72 Asset Management
Connecticut
$77K
3
Citadel Advisors
3
Citadel Advisors
Florida
$409K
4
OM
4
Opaleye Management
Massachusetts
$3.5M
5
WP
5
Woodline Partners
California
$4.21M
Name Holding Trade Value Shares
Change 		Shares
Change %
O
1
OrbiMed
New York
$35.2M +$31.2M +15,849 +794%
DS
2
DRW Securities
Illinois
$34.9M +$16.5M +8,389 +90%
NCM
3
Nantahala Capital Management
Connecticut
$31.9M +$1.68M +852 +6%
PAMU
4
Pictet Asset Management (UK)
United Kingdom
$17.2M – – –
CA
5
Corriente Advisors
Texas
$12.7M -$2.32M -1,178 -15%
EAM
6
Eventide Asset Management
Massachusetts
$10.1M +$10.1M +5,109 New
PCH
7
Polar Capital Holdings
United Kingdom
$7.91M +$7.91M +4,012 New
ABG
8
Ally Bridge Group
New York
$6.17M +$6.17M +3,131 New
6CM
9
683 Capital Management
New York
$5.11M – – –
SI
10
Sofinnova Investments
California
$4.3M +$4.3M +2,180 New
SMH
11
Sanders Morris Harris
Texas
$4.23M +$1.18M +574 +39%
WP
12
Woodline Partners
California
$4.21M -$2.94M -1,490 -41%
FLAM
13
First Light Asset Management
Minnesota
$3.68M +$3.68M +1,865 New
PM
14
Prosight Management
Texas
$3.61M -$1.38M -698 -28%
OM
15
Opaleye Management
Massachusetts
$3.5M -$4.38M -2,220 -56%
PAWC
16
P.A.W. Capital
Connecticut
$3.29M +$219K +111 +7%
VC
17
Voss Capital
Texas
$3.13M +$142K +72 +5%
Goldman Sachs
18
Goldman Sachs
New York
$2.92M -$150K -76 -5%
ECM
19
Endurant Capital Management
California
$2.09M +$581K +295 +38%
Morgan Stanley
20
Morgan Stanley
New York
$2.08M +$35.5K +18 +2%
PM
21
Precept Management
Texas
$1.93M -$682K -346 -26%
BNP Paribas Financial Markets
22
BNP Paribas Financial Markets
France
$1.49M – – –
RCG
23
Rock Creek Group
District of Columbia
$1.34M +$205K +104 +18%
SPC
24
Sigma Planning Corp
Michigan
$1.27M +$142K +72 +13%
Two Sigma Advisers
25
Two Sigma Advisers
New York
$1.15M -$128K -65 -10%
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