BL
APTO

Bleichroeder LP’s Aptose Biosciences, Inc. APTO Stock Holding History

Bleichroeder LP’s Portfolio APTO Stock Details APTO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-121,366
Closed -$382K – 83
2025
Q1 		$382K Buy
121,366
+38,033
+46% +$185K 0.1% 48
2024
Q4 		$563K Buy
+83,333
New +$759K 0.14% 36

Other funds holding APTO

DS
DRW Securities Chicago, Illinois $4.11B AUM 21.98% 1-Year Est. Return
GG
Gleason Group Prospect, Kentucky $1.15B AUM 21.11% 1-Year Est. Return
TWC
TD Waterhouse Canada Toronto, Ontario, Canada $38B AUM 39.14% 1-Year Est. Return
CSC
Caldwell Sutter Capital Sausalito, California $265M AUM 30.15% 1-Year Est. Return

Bleichroeder LP's APTO Position: Q2 2025 in Review

Bleichroeder LP sold out of Aptose Biosciences, Inc. (APTO) in Q2 2025, closing a stake of 121,366 shares — an estimated $382K sold.

Bleichroeder LP first reported a position in APTO in Q4 2024 and held it in 2 quarters. The position peaked at $563K in Q4 2024. 4 funds tracked by Wall St. Rank hold APTO as of Q2 2025.

  • Bleichroeder LP reported no remaining Aptose Biosciences, Inc. position as of Q2 2025 after selling out during the quarter.
  • Bleichroeder LP sold 121,366 Aptose Biosciences, Inc. shares in Q2 2025, an estimated $382K.
  • Bleichroeder LP first reported a position in Aptose Biosciences, Inc. in Q4 2024 and held it in 2 quarters.
  • Bleichroeder LP's Aptose Biosciences, Inc. position peaked at $563K in Q4 2024.
  • 4 funds tracked by Wall St. Rank held Aptose Biosciences, Inc. as of Q2 2025.

Based on Bleichroeder LP's 13F filing for Q2 2025, filed 14 Aug 2025.