APTO

Aptose Biosciences, Inc.
APTO

Overview Fund Activity
Delisted

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

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59 hedge funds and large institutions have $42.6M invested in Aptose Biosciences, Inc. in 2021 Q4 according to their latest regulatory filings, with 12 funds opening new positions, 22 increasing their positions, 14 reducing their positions, and 20 closing their positions.

Holders
59
Holders Change
-8
Holders Change %
-11.94%
% of All Funds
0.91%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
12
Increased
22
Reduced
14
Closed
20
Calls
$197K
Puts
$102K
Net Calls
+$95K
Net Calls Change
+$214K

Top Buyers

1
CC
1
Carlson Capital
Texas
$1.89M
2
SMH
2
Sanders Morris Harris
Texas
$2.92M
3
VC
3
Voss Capital
Texas
$743K
4
Two Sigma Investments
4
Two Sigma Investments
New York
$930K
5
Millennium Management
5
Millennium Management
New York
$1.47M

Top Sellers

1
FLAM
1
First Light Asset Management
Minnesota
$0
2
CAM
2
Cormorant Asset Management
Massachusetts
$0
3
O
3
OrbiMed
New York
$0
4
6CM
4
683 Capital Management
New York
$2.73M
5
OM
5
Opaleye Management
Massachusetts
$0
Name Market Value Shares Shares
Change 		Shares
Change %
DS
1
DRW Securities
Illinois
$12M 8,892,437 – –
NCM
2
Nantahala Capital Management
Connecticut
$10.3M 7,604,693 +248,963 +3%
SMH
3
Sanders Morris Harris
Texas
$2.92M 1,961,594 +587,800 +43%
6CM
4
683 Capital Management
New York
$2.73M 2,019,770 -1,092,967 -35%
CC
5
Carlson Capital
Texas
$1.89M 1,400,000 +679,592 +94%
Morgan Stanley
6
Morgan Stanley
New York
$1.78M 1,317,291 -170,137 -11%
Millennium Management
7
Millennium Management
New York
$1.47M 1,091,222 +398,691 +58%
Renaissance Technologies
8
Renaissance Technologies
New York
$1.27M 942,625 +219,620 +30%
Two Sigma Investments
9
Two Sigma Investments
New York
$930K 688,849 +470,216 +215%
BNP Paribas Financial Markets
10
BNP Paribas Financial Markets
France
$926K 686,058 +345,472 +101%
Goldman Sachs
11
Goldman Sachs
New York
$900K 666,607 -85,195 -11%
SPC
12
Sigma Planning Corp
Michigan
$766K 567,314 +54,795 +11%
PAWC
13
P.A.W. Capital
Connecticut
$763K 565,000 -185,000 -25%
VC
14
Voss Capital
Texas
$743K 550,000 +482,400 +714%
Man Group
15
Man Group
United Kingdom
$472K 349,288 +88,452 +34%
Two Sigma Advisers
16
Two Sigma Advisers
New York
$378K 279,900 +173,500 +163%
D.E. Shaw & Co
17
D.E. Shaw & Co
New York
$357K 264,289 +264,289 New
TWC
18
TD Waterhouse Canada
Ontario, Canada
$206K 110,199 +110,199 New
Group One Trading
19
Group One Trading
Illinois
$201K 148,956 +52,166 +54%
Citadel Advisors
20
Citadel Advisors
Florida
$153K 113,376 -56,110 -33%
WP
21
WealthShield Partners
North Carolina
$142K 104,920 +30,408 +41%
IC
22
Ikarian Capital
Texas
$138K 102,089 – –
Susquehanna International Group
23
Susquehanna International Group
Pennsylvania
$99K 73,055 -18,557 -20%
Walleye Capital
24
Walleye Capital
New York
$96K 71,443 -212,148 -75%
Dimensional Fund Advisors
25
Dimensional Fund Advisors
Texas
$92K 68,399 – –
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