APTO

Aptose Biosciences, Inc.
APTO

Overview Fund Activity
Delisted

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

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63 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, 16 reducing their positions, and 17 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
63
Holders Change
-7
Holders Change %
-10%
% of All Funds
1.1%
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
16
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 Holding Trade Value Shares
Change 		Shares
Change %
GS
26
Gagnon Securities
New York
$364K -$1.5K -1 -0.4%
IC
27
Ikarian Capital
Texas
$346K – – –
Citadel Advisors
28
Citadel Advisors
Florida
$316K +$186K +124 +143%
JF
29
Jump Financial
Illinois
$314K +$314K +210 New
Susquehanna International Group
30
Susquehanna International Group
Pennsylvania
$281K +$281K +188 New
Geode Capital Management
31
Geode Capital Management
Massachusetts
$195K – – –
WP
32
WealthShield Partners
North Carolina
$135K +$135K +91 New
ECM
33
ExodusPoint Capital Management
New York
$123K +$123K +82 New
US Bancorp
34
US Bancorp
Minnesota
$101K – – –
RJA
35
Raymond James & Associates
Florida
$92K – – –
TCA
36
Transcend Capital Advisors
New Jersey
$80K – – –
Bank of Montreal
37
Bank of Montreal
Ontario, Canada
$77K +$13.4K +8 +21%
PSP
38
Principal Street Partners
Tennessee
$72K -$16.5K -11 -19%
Simplex Trading
39
Simplex Trading
Illinois
$66K -$170K -113 -72%
Royal Bank of Canada
40
Royal Bank of Canada
Ontario, Canada
$49K +$5.94K +4 +14%
JAWM
41
J. Arnold Wealth Management
Ohio
$49K +$10.4K +7 +27%
WA
42
WealthTrust Axiom
Pennsylvania
$49K +$49K +33 New
NFSG
43
Newbridge Financial Services Group
Florida
$48K – – –
BFM
44
Boothbay Fund Management
New York
$40K – – –
DAM
45
Doheny Asset Management
California
$35K -$277K -182 -89%
AC
46
Apogem Capital
New York
$34K -$4.44K -3 -12%
CA
47
Cetera Advisors
Colorado
$34K +$34K +23 New
AFM
48
Abbot Financial Management
Massachusetts
$33K – – –
UBS Group
49
UBS Group
Switzerland
$30K +$24K +16 +400%
BFEC
50
Benjamin F. Edwards & Company
Missouri
$27K +$27K +18 New
1
2
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