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
2023
Q1 		– Sell
-10
Closed -$2.67K – 8227
2022
Q4 		$2.67K Sell
10
-23
-70% -$6.18K ﹤0.01% 6559
2022
Q3 		$9K Sell
33
-10
-23% -$3.45K ﹤0.01% 6590
2022
Q2 		$14K Sell
43
-9
-17% -$4.3K ﹤0.01% 6577
2022
Q1 		$32K Buy
52
+31
+148% +$17.1K ﹤0.01% 6443
2021
Q4 		$13K Sell
21
-85
-80% -$79.9K ﹤0.01% 7248
2021
Q3 		$104K Buy
106
+64
+152% +$80.1K ﹤0.01% 5877
2021
Q2 		$63K Sell
42
-284
-87% -$619K ﹤0.01% 6384
2021
Q1 		$878K Buy
326
+118
+57% +$234K ﹤0.01% 3386
2020
Q4 		$410K Buy
208
+189
+995% +$444K ﹤0.01% 3447
2020
Q3 		$52K Sell
19
-13
-41% -$32.4K ﹤0.01% 4619
2020
Q2 		$91K Buy
+32
New +$103K ﹤0.01% 3986
2020
Q1 		– Sell
-39
Closed -$116K – 5136
2019
Q4 		$99K Buy
+39
New +$50.8K ﹤0.01% 3643

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.