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APTO

Aptose Biosciences, Inc.
APTO

Delisted

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

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64 hedge funds and large institutions have $85.8M invested in Aptose Biosciences, Inc. in 2021 Q3 according to their latest regulatory filings, with 11 funds opening new positions, 23 increasing their positions, 20 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed

15% more repeat investments, than reductions

Existing positions increased: 23 | Existing positions reduced: 20

10% more first-time investments, than exits

New positions opened: 11 | Existing positions closed: 10

2% more funds holding

Funds holding: 63 → 64 (+1)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

32% less call options, than puts

Call options by funds: $251K | Put options by funds: $370K

42% less capital invested

Capital invested by funds: $148M → $85.8M (-$62.3M)

Holders
64
Holders Change
+1
Holders Change %
+1.59%
% of All Funds
1.12%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
11
Increased
23
Reduced
20
Closed
10
Calls
$251K
Puts
$370K
Net Calls
-$119K
Net Calls Change
-$50K

Top Buyers

Rank Fund Capital Flow
1
6CM
683 Capital Management
New York
+$2.56M
2
Morgan Stanley
Morgan Stanley
New York
+$2.47M
3
Renaissance Technologies
Renaissance Technologies
New York
+$2.01M
4
SMH
Sanders Morris Harris
Texas
+$1.19M
5
DS
DRW Securities
Illinois
+$1.16M

Top Sellers

Rank Fund Capital Flow
1
O
OrbiMed
New York
-$15.1M
2
EAM
Eventide Asset Management
Massachusetts
-$7.63M
3
CAM
Cormorant Asset Management
Massachusetts
-$2.24M
4
OM
Opaleye Management
Massachusetts
-$1.2M
5
VC
Voss Capital
Texas
-$981K
Name Holding Trade Value Shares
Change 		Change in
Stake
NDSI
51
Newman Dignan & Sheerar Inc
Rhode Island
$28K +$36.3K +29 New
CA
52
Cetera Advisors
Colorado
$27K +$5K +4 +17%
BFM
53
Boothbay Fund Management
New York
$23K -$5K -4 -15%
AFM
54
Abbot Financial Management
Massachusetts
$22K – – –
QT
55
Quantbot Technologies
New York
$20K +$18.8K +15 +300%
CAPTRUST Financial Advisors
56
CAPTRUST Financial Advisors
North Carolina
$14K – – –
TCWM
57
Total Clarity Wealth Management
Illinois
$9K +$11.3K +9 New
Osaic Holdings
58
Osaic Holdings
Arizona
$7K -$1.25K -1 -13%
PNC Financial Services Group
59
PNC Financial Services Group
Pennsylvania
$7K – – –
Toronto Dominion Bank
60
Toronto Dominion Bank
Ontario, Canada
$5K +$5K +4 +400%
Northwestern Mutual Wealth Management
61
Northwestern Mutual Wealth Management
Wisconsin
$4K – – –
FDCDDQ
62
Federation des caisses Desjardins du Quebec
Quebec, Canada
$3.37K -$1.25K -1 -25%
Rockefeller Capital Management
63
Rockefeller Capital Management
New York
$3K – – –
Walleye Capital
64
Walleye Capital
New York
$618 +$788K +630 New
PCH
65
Polar Capital Holdings
United Kingdom
– -$8.58K -5,742 Closed
EAM
66
Eventide Asset Management
Massachusetts
– -$7.63M -5,109 Closed
PM
67
Precept Management
Texas
– -$664K -444 Closed
ECM
68
ExodusPoint Capital Management
New York
– -$123K -82 Closed
PSP
69
Principal Street Partners
Tennessee
– -$72K -48 Closed
AC
70
Apogem Capital
New York
– -$34K -23 Closed
DAM
71
Doheny Asset Management
California
– -$35K -23 Closed
HWM
72
HighMark Wealth Management
Minnesota
– -$17K -11 Closed
CL
73
CSS LLC
Illinois
– -$5K -3 Closed
GCM
74
Gables Capital Management
Florida
– -$5K -3 Closed
1 2
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APTO Hedge Fund Activity: Q3 2021 in Review

64 of the 5,712 institutional investors tracked by Wall St. Rank reported a position in Aptose Biosciences, Inc. (APTO) for Q3 2021, worth a combined $85.8M — down 42% from $148M a quarter earlier.

Buyers outnumbered sellers: 11 funds opened new APTO positions and 10 closed out — a net gain of 1 holder — while 23 added to existing stakes and 20 trimmed.

The largest buyer was 683 Capital Management, adding an estimated $2.56M. The largest seller was OrbiMed, cutting an estimated $15.1M.

  • 64 institutional investors held Aptose Biosciences, Inc. (APTO) as of Q3 2021, up from 63 in Q2 2021.
  • Funds reported $85.8M of Aptose Biosciences, Inc. stock for Q3 2021, down 42% quarter-over-quarter.
  • 11 funds opened new Aptose Biosciences, Inc. positions in Q3 2021 and 10 closed out, a net change of +1 holder.
  • The largest Aptose Biosciences, Inc. buyer in Q3 2021 was 683 Capital Management, an estimated $2.56M added.
  • The largest Aptose Biosciences, Inc. seller in Q3 2021 was OrbiMed, an estimated $15.1M sold.

Based on aggregated 13F filings for Q3 2021.