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
2025
Q2 		– Sell
-3
Closed -$9 – 8859
2025
Q1 		$9 Sell
3
-1
-25% -$5 ﹤0.01% 7455
2024
Q4 		$26 Hold
4
– – ﹤0.01% 7137
2024
Q3 		$47 Hold
4
– – ﹤0.01% 6499
2024
Q2 		$87 Hold
4
– – ﹤0.01% 6559
2024
Q1 		$191 Hold
4
– – ﹤0.01% 6812
2023
Q4 		$289 Hold
4
– – ﹤0.01% 7136
2023
Q3 		$322 Hold
4
– – ﹤0.01% 7396
2023
Q2 		$534 Sell
4
-5
-56% -$1.03K ﹤0.01% 7358
2023
Q1 		$2.46K Sell
9
-70
-89% -$20.3K ﹤0.01% 6561
2022
Q4 		$20.6K Sell
79
-62
-44% -$16.7K ﹤0.01% 5583
2022
Q3 		$38K Sell
141
-32
-18% -$11K ﹤0.01% 5626
2022
Q2 		$58K Sell
173
-72
-29% -$34.4K ﹤0.01% 5443
2022
Q1 		$150K Sell
245
-86
-26% -$47.6K ﹤0.01% 5096
2021
Q4 		$201K Buy
331
+116
+54% +$109K ﹤0.01% 5081
2021
Q3 		$211K Sell
215
-125
-37% -$156K ﹤0.01% 5119
2021
Q2 		$508K Buy
+340
New +$741K ﹤0.01% 4208
2020
Q4 		– Sell
-40
Closed -$94K – 7179
2020
Q3 		$108K Buy
+40
New +$99.7K ﹤0.01% 4144
2020
Q2 		– Sell
-5
Closed -$16.1K – 6338
2020
Q1 		$14K Buy
+5
New +$14.9K ﹤0.01% 4434
2019
Q4 		– Sell
-1
Closed -$1.3K – 5784
2019
Q3 		$1K Buy
+1
New +$1.14K ﹤0.01% 5033

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.