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APTO

Aptose Biosciences, Inc.
APTO

Delisted

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

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3 hedge funds and large institutions have $28.1K invested in Aptose Biosciences, Inc. in 2025 Q3 according to their latest regulatory filings, with 0 funds opening new positions, 0 increasing their positions, reducing their positions, and 1 closing their positions.

New
Increased
Maintained
Reduced
Closed

35% more capital invested

Capital invested by funds: $20.7K → $28.1K (+$7.35K)

25% less funds holding

Funds holding: 4 → 3 (-1)

100% less first-time investments, than exits

New positions opened: 0 | Existing positions closed: 1

Holders
3
Holders Change
-1
Holders Change %
-25%
% of All Funds
0.04%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
–
Increased
–
Reduced
–
Closed
1
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

No buyers this quarter

Top Sellers

Rank Fund Capital Flow
1
TWC
TD Waterhouse Canada
Ontario, Canada
-$19
Name Holding Trade Value Shares
Change 		Change in
Stake
DS
1
DRW Securities
Illinois
$23.1K – – –
GG
2
Gleason Group
Kentucky
$4.96K – – –
CSC
3
Caldwell Sutter Capital
California
$2 – – –
TWC
4
TD Waterhouse Canada
Ontario, Canada
– -$19 -22 Closed

APTO Hedge Fund Activity: Q3 2025 in Review

3 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Aptose Biosciences, Inc. (APTO) for Q3 2025, worth a combined $28.1K — up 35% from $20.7K a quarter earlier.

Sellers outnumbered buyers: 1 fund closed out of APTO and 0 opened new positions — a net loss of 1 holder — while 0 trimmed existing stakes and 0 added.

The largest seller was TD Waterhouse Canada, exiting entirely with an estimated $19 sold.

  • 3 institutional investors held Aptose Biosciences, Inc. (APTO) as of Q3 2025, down from 4 in Q2 2025.
  • Funds reported $28.1K of Aptose Biosciences, Inc. stock for Q3 2025, up 35% quarter-over-quarter.
  • 0 funds opened new Aptose Biosciences, Inc. positions in Q3 2025 and 1 closed out, a net change of -1 holder.
  • The largest Aptose Biosciences, Inc. seller in Q3 2025 was TD Waterhouse Canada, an estimated $19 sold.

Based on aggregated 13F filings for Q3 2025.