Group One Trading
PRQR icon

Group One Trading’s ProQR Therapeutics PRQR Stock Holding History

Group One Trading’s Portfolio PRQR Stock Details PRQR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-28,900
Closed -$58.4K – 8509
2025
Q4 		$58.4K Buy
28,900
+23,000
+390% +$53.8K ﹤0.01% 5478
2025
Q3 		$12.6K Buy
5,900
+5,400
+1,080% +$11.8K ﹤0.01% 7032
2025
Q2 		$1.02K Sell
500
-9,100
-95% -$14.8K ﹤0.01% 7558
2025
Q1 		$12.8K Sell
9,600
-60,300
-86% -$128K ﹤0.01% 6105
2024
Q4 		$185K Sell
69,900
-293,900
-81% -$933K ﹤0.01% 3994
2024
Q3 		$662K Buy
363,800
+263,000
+261% +$494K ﹤0.01% 2646
2024
Q2 		$167K Sell
100,800
-41,300
-29% -$80.2K ﹤0.01% 3549
2024
Q1 		$323K Buy
142,100
+86,600
+156% +$185K ﹤0.01% 3151
2023
Q4 		$110K Buy
+55,500
New +$85.3K ﹤0.01% 4377
2023
Q3 		– Sell
-29,000
Closed -$47K – 8147
2023
Q2 		$47K Sell
29,000
-68,100
-70% -$133K ﹤0.01% 5330
2023
Q1 		$207K Buy
97,100
+6,500
+7% +$19.9K ﹤0.01% 3641
2022
Q4 		$335K Buy
+90,600
New +$119K ﹤0.01% 3402
2022
Q3 		– Sell
-700
Closed -$1K – 8082
2022
Q2 		$1K Sell
700
-49,100
-99% -$36.6K ﹤0.01% 7606
2022
Q1 		$45K Buy
49,800
+43,800
+730% +$147K ﹤0.01% 6168
2021
Q4 		$48K Sell
6,000
-123,400
-95% -$940K ﹤0.01% 6374
2021
Q3 		$1.08M Buy
129,400
+50,400
+64% +$329K ﹤0.01% 3328
2021
Q2 		$532K Sell
79,000
-96,600
-55% -$623K ﹤0.01% 4167
2021
Q1 		$1.16M Buy
175,600
+175,200
+43,800% +$895K ﹤0.01% 3050
2020
Q4 		$2K Sell
400
-1,200
-75% -$5.06K ﹤0.01% 6262
2020
Q3 		$8K Sell
1,600
-3,700
-70% -$19.4K ﹤0.01% 5503
2020
Q2 		$32K Buy
5,300
+5,000
+1,667% +$27K ﹤0.01% 4605
2020
Q1 		$2K Sell
300
-1,700
-85% -$13K ﹤0.01% 4999
2019
Q4 		$20K Buy
+2,000
New +$15.6K ﹤0.01% 4371

Other funds holding PRQR

Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
PFM
Privium Fund Management Amsterdam, Netherlands $480M AUM 77.45% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $61.9B AUM 29.81% 1-Year Est. Return
AAA
Affinity Asset Advisors New York $1.94B AUM 374.45% 1-Year Est. Return
SCM
Sio Capital Management New York $697M AUM 79.73% 1-Year Est. Return
DCM
DAFNA Capital Management Los Angeles, California $440M AUM 109.12% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.62B AUM 138.67% 1-Year Est. Return
IC
Ikarian Capital Dallas, Texas $1.23B AUM 600.17% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
PIM
Platinum Investment Management Sydney Australia 2000, Australia $397M AUM 63.96% 1-Year Est. Return

Group One Trading's PRQR Position: Q1 2026 in Review

Group One Trading reduced its ProQR Therapeutics (PRQR) stake by 38% in Q1 2026, selling an estimated $18.8K and leaving 18,924 shares worth $30.7K. The position accounts for ﹤0.01% of the portfolio, ranked #5654.

Group One Trading first reported a position in PRQR in Q3 2019 and has held it in 18 quarters since. The position peaked at $401K in Q4 2021. 69 funds tracked by Wall St. Rank hold PRQR as of Q1 2026.

  • Group One Trading held 18,924 shares of ProQR Therapeutics worth $30.7K as of Q1 2026.
  • Group One Trading sold 11,464 ProQR Therapeutics shares in Q1 2026, an estimated $18.8K.
  • ProQR Therapeutics made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #5654 holding.
  • Group One Trading first reported a position in ProQR Therapeutics in Q3 2019 and has held it in 18 quarters since.
  • Group One Trading's ProQR Therapeutics position peaked at $401K in Q4 2021.
  • 69 funds tracked by Wall St. Rank held ProQR Therapeutics as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.