APTO

Aptose Biosciences, Inc.
APTO

Overview Fund Activity
Delisted

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

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66 hedge funds and large institutions have $148M invested in Aptose Biosciences, Inc. in 2021 Q2 according to their latest regulatory filings, with 10 funds opening new positions, 18 increasing their positions, 18 reducing their positions, and 17 closing their positions.

Holders
66
Holders Change
-7
Holders Change %
-9.59%
% of All Funds
1.15%
Holding in Top 10
1
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-66.67%
% of All Funds
0.02%
New
10
Increased
18
Reduced
18
Closed
17
Calls
$447K
Puts
$516K
Net Calls
-$69K
Net Calls Change
-$1.39M

Top Buyers

1
6CM
1
683 Capital Management
New York
$7.27M
2
FLAM
2
First Light Asset Management
Minnesota
$13.7M
3
SMH
3
Sanders Morris Harris
Texas
$3.08M
4
DS
4
DRW Securities
Illinois
$28.1M
5
Group One Trading
5
Group One Trading
Illinois
$508K

Top Sellers

1
PAMU
1
Pictet Asset Management (UK)
United Kingdom
$0
2
VA
2
VR Adviser
New York
$0
3
ABG
3
Ally Bridge Group
New York
$0
4
WP
4
Woodline Partners
California
$780K
5
SI
5
Sofinnova Investments
California
$0
Name Market Value Shares Shares
Change 		Shares
Change %
DS
1
DRW Securities
Illinois
$28.1M 8,476,176 +500,000 +6%
O
2
OrbiMed
New York
$26.7M 8,030,000 – –
NCM
3
Nantahala Capital Management
Connecticut
$25M 7,541,497 -197,395 -3%
FLAM
4
First Light Asset Management
Minnesota
$13.7M 4,115,411 +1,012,623 +33%
CAM
5
Cormorant Asset Management
Massachusetts
$12.6M 3,807,200 -192,800 -5%
EAM
6
Eventide Asset Management
Massachusetts
$7.63M 2,299,000 – –
6CM
7
683 Capital Management
New York
$7.27M 2,191,207 +1,590,293 +265%
OM
8
Opaleye Management
Massachusetts
$3.25M 980,000 +108,200 +12%
SMH
9
Sanders Morris Harris
Texas
$3.08M 945,208 +919,793 +3,619%
PAWC
10
P.A.W. Capital
Connecticut
$2.32M 700,000 +10,000 +1%
Goldman Sachs
11
Goldman Sachs
New York
$2.22M 668,488 +723 +0.1%
Morgan Stanley
12
Morgan Stanley
New York
$1.98M 597,180 +90,129 +18%
CC
13
Carlson Capital
Texas
$1.69M 510,000 +110,000 +28%
VC
14
Voss Capital
Texas
$1.4M 420,161 -19,839 -5%
SPC
15
Sigma Planning Corp
Michigan
$1.26M 380,044 +53,654 +16%
BNP Paribas Financial Markets
16
BNP Paribas Financial Markets
France
$1.13M 340,586 – –
Millennium Management
17
Millennium Management
New York
$1.05M 315,293 -50,138 -14%
WP
18
Woodline Partners
California
$780K 235,005 -1,983,615 -89%
RCG
19
Rock Creek Group
District of Columbia
$731K 220,161 +30,161 +16%
PM
20
Precept Management
Texas
$664K 200,000 -130,766 -40%
PFGIA
21
Patriot Financial Group Insurance Agency
Massachusetts
$535K 161,279 -10,260 -6%
Group One Trading
22
Group One Trading
Illinois
$508K 152,861 +152,861 New
Man Group
23
Man Group
United Kingdom
$489K 147,380 -46,492 -24%
Two Sigma Advisers
24
Two Sigma Advisers
New York
$480K 144,600 -68,700 -32%
PM
25
Prosight Management
Texas
$442K 133,000 -17,000 -11%
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