Group One Trading
APTO

Group One Trading’s Aptose Biosciences, Inc. APTO Stock Holding History

Group One Trading’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
2022
Q1 		– Sell
-6
Closed -$4K – 9001
2021
Q4 		$4K Sell
6
-2
-25% -$1.88K ﹤0.01% 7746
2021
Q3 		$7K Sell
8
-35
-81% -$43.8K ﹤0.01% 7661
2021
Q2 		$64K Sell
43
-35
-45% -$76.2K ﹤0.01% 6369
2021
Q1 		$210K Buy
78
+57
+271% +$113K ﹤0.01% 4979
2020
Q4 		$42K Buy
21
+20
+2,000% +$47K ﹤0.01% 5129
2020
Q3 		$2K Sell
1
-7
-88% -$17.5K ﹤0.01% 5864
2020
Q2 		$23K Sell
8
-19
-70% -$61.3K ﹤0.01% 4773
2020
Q1 		$73K Buy
+27
New +$80.5K ﹤0.01% 3506
2019
Q4 		– Sell
-11
Closed -$10K – 5785
2019
Q3 		$10K Buy
+11
New +$12.5K ﹤0.01% 4608

Other funds holding APTO

DS
DRW Securities Chicago, Illinois $7.21B AUM 20.54% 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 $33.7B AUM 35.49% 1-Year Est. Return
CSC
Caldwell Sutter Capital Sausalito, California $246M AUM 23.62% 1-Year Est. Return

Group One Trading's APTO Position: Q2 2025 in Review

Group One Trading sold out of Aptose Biosciences, Inc. (APTO) in Q2 2025, closing a stake of 3 shares — an estimated $9 sold.

Group One Trading first reported a position in APTO in Q3 2019 and held it in 19 quarters. The position peaked at $508K in Q2 2021. 4 funds tracked by Wall St. Rank hold APTO as of Q2 2025.

  • Group One Trading reported no remaining Aptose Biosciences, Inc. position as of Q2 2025 after selling out during the quarter.
  • Group One Trading sold 3 Aptose Biosciences, Inc. shares in Q2 2025, an estimated $9.
  • Group One Trading first reported a position in Aptose Biosciences, Inc. in Q3 2019 and held it in 19 quarters.
  • Group One Trading's Aptose Biosciences, Inc. position peaked at $508K in Q2 2021.
  • 4 funds tracked by Wall St. Rank held Aptose Biosciences, Inc. as of Q2 2025.

Based on Group One Trading's 13F filing for Q2 2025, filed 14 Aug 2025.