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APTO

Aptose Biosciences, Inc.
APTO

Delisted

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

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4 hedge funds and large institutions have $38.7K invested in Aptose Biosciences, Inc. in 2026 Q2 according to their latest regulatory filings, with funds opening new positions, 1 increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

0% more funds holding

Funds holding: 4 → 4 (0)

3% less capital invested

Capital invested by funds: $40K → $38.7K (-$1.27K)

Holders
4
Holders Change
–
Holders Change %
0%
% of All Funds
0.05%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
–
Increased
1
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
CSC
Caldwell Sutter Capital
California
+$324

Top Sellers

No sellers this quarter

APTO Hedge Fund Activity: Q2 2026 in Review

4 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Aptose Biosciences, Inc. (APTO) for Q2 2026, worth a combined $38.7K — down 3.2% from $40K a quarter earlier.

Fund positioning in APTO was balanced in Q2 2026: 0 funds opened new positions, 0 closed out, 1 added to existing stakes and 0 trimmed.

The largest buyer was Caldwell Sutter Capital, adding an estimated $324.

  • 4 institutional investors held Aptose Biosciences, Inc. (APTO) as of Q2 2026, unchanged from Q1 2026.
  • Funds reported $38.7K of Aptose Biosciences, Inc. stock for Q2 2026, down 3.2% quarter-over-quarter.
  • 0 funds opened new Aptose Biosciences, Inc. positions in Q2 2026 and 0 closed out.
  • The largest Aptose Biosciences, Inc. buyer in Q2 2026 was Caldwell Sutter Capital, an estimated $324 added.

Based on aggregated 13F filings for Q2 2026.