APTO

Aptose Biosciences, Inc.
APTO

Overview Fund Activity
Delisted

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

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67 hedge funds and large institutions have $85.8M invested in Aptose Biosciences, Inc. in 2021 Q3 according to their latest regulatory filings, with 12 funds opening new positions, 23 increasing their positions, 21 reducing their positions, and 11 closing their positions.

Holders
67
Holders Change
+1
Holders Change %
+1.52%
% of All Funds
1.18%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
12
Increased
23
Reduced
21
Closed
11
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 Market Value Shares Shares
Change 		Shares
Change %
DS
1
DRW Securities
Illinois
$19.4M 8,892,437 +416,261 +5%
NCM
2
Nantahala Capital Management
Connecticut
$16M 7,355,730 -185,767 -2%
FLAM
3
First Light Asset Management
Minnesota
$9M 4,128,443 +13,032 +0.3%
6CM
4
683 Capital Management
New York
$6.79M 3,112,737 +921,530 +42%
CAM
5
Cormorant Asset Management
Massachusetts
$6.54M 3,000,000 -807,200 -21%
O
6
OrbiMed
New York
$5.66M 2,594,348 -5,435,652 -68%
Morgan Stanley
7
Morgan Stanley
New York
$3.24M 1,487,428 +890,248 +149%
SMH
8
Sanders Morris Harris
Texas
$3.08M 1,373,794 +428,586 +45%
Goldman Sachs
9
Goldman Sachs
New York
$1.64M 751,802 +83,314 +12%
PAWC
10
P.A.W. Capital
Connecticut
$1.64M 750,000 +50,000 +7%
Renaissance Technologies
11
Renaissance Technologies
New York
$1.58M 723,005 +723,005 New
CC
12
Carlson Capital
Texas
$1.57M 720,408 +210,408 +41%
Millennium Management
13
Millennium Management
New York
$1.51M 692,531 +377,238 +120%
OM
14
Opaleye Management
Massachusetts
$1.2M 549,000 -431,000 -44%
SPC
15
Sigma Planning Corp
Michigan
$1.12M 512,519 +132,475 +35%
BNP Paribas Financial Markets
16
BNP Paribas Financial Markets
France
$742K 340,586 – –
Man Group
17
Man Group
United Kingdom
$569K 260,836 +113,456 +77%
WP
18
Woodline Partners
California
$481K 220,686 -14,319 -6%
Two Sigma Investments
19
Two Sigma Investments
New York
$477K 218,633 +218,633 New
Citadel Advisors
20
Citadel Advisors
Florida
$369K 169,486 +74,377 +78%
Two Sigma Advisers
21
Two Sigma Advisers
New York
$232K 106,400 -38,200 -26%
JF
22
Jump Financial
Illinois
$229K 105,202 +10,702 +11%
IC
23
Ikarian Capital
Texas
$224K 102,089 -1,815 -2%
Group One Trading
24
Group One Trading
Illinois
$211K 96,790 -56,071 -37%
Susquehanna International Group
25
Susquehanna International Group
Pennsylvania
$200K 91,612 +6,845 +8%
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