Simplex Trading
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Simplex Trading’s ProQR Therapeutics PRQR Stock Holding History

Simplex 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 		$40.3K Sell
24,868
-19,401
-44% -$31.8K ﹤0.01% 6105
2025
Q4 		$89.4K Buy
+44,269
New +$103K ﹤0.01% 5108
2025
Q3 		– Sell
-856
Closed -$1.87K – 9841
2025
Q2 		$1K Sell
856
-3,252
-79% -$5.29K ﹤0.01% 8398
2025
Q1 		$5K Sell
4,108
-5,801
-59% -$12.3K ﹤0.01% 7584
2024
Q4 		$26K Buy
+9,909
New +$31.5K ﹤0.01% 6479
2024
Q3 		– Sell
-6,628
Closed -$12.4K – 9340
2024
Q2 		$11K Sell
6,628
-6,922
-51% -$13.4K ﹤0.01% 7380
2024
Q1 		$30K Buy
13,550
+11,756
+655% +$25.1K ﹤0.01% 6758
2023
Q4 		$3K Sell
1,794
-12,895
-88% -$19.8K ﹤0.01% 8130
2023
Q3 		$19K Buy
14,689
+8,159
+125% +$12.8K ﹤0.01% 6676
2023
Q2 		$10K Sell
6,530
-79,622
-92% -$155K ﹤0.01% 7423
2023
Q1 		$183K Buy
86,152
+50,787
+144% +$155K ﹤0.01% 4437
2022
Q4 		$130K Buy
35,365
+32,922
+1,348% +$43.1K ﹤0.01% 4760
2022
Q3 		$1K Buy
2,443
+2,400
+5,581% +$1.93K ﹤0.01% 9610
2022
Q2 		$0 Buy
+43
New +$32 ﹤0.01% 10858
2022
Q1 		– Sell
-16,291
Closed -$54.6K – 11189
2021
Q4 		$130K Buy
+16,291
New +$124K ﹤0.01% 5835
2021
Q2 		– Sell
-122,183
Closed -$788K – 10570
2021
Q1 		$807K Buy
122,183
+119,196
+3,990% +$609K ﹤0.01% 2685
2020
Q4 		$12K Buy
2,987
+2,971
+18,569% +$12.5K ﹤0.01% 7305
2020
Q3 		$0 Sell
16
-1,837
-99% -$9.61K ﹤0.01% 8342
2020
Q2 		$11K Sell
1,853
-22,631
-92% -$122K ﹤0.01% 6606
2020
Q1 		$134K Buy
+24,484
New +$188K ﹤0.01% 4060
2019
Q4 		– Sell
-100
Closed – – 7838
2019
Q3 		$0 Buy
+100
New +$799 ﹤0.01% 7750
2019
Q2 		– Sell
-52
Closed – – 7627
2019
Q1 		$0 Buy
+52
New +$777 ﹤0.01% 7703

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

Simplex Trading's PRQR Position: Q1 2026 in Review

Simplex Trading reduced its ProQR Therapeutics (PRQR) stake by 44% in Q1 2026, selling an estimated $31.8K and leaving 24,868 shares worth $40.3K. The position accounts for ﹤0.01% of the portfolio, ranked #6105.

Simplex Trading first reported a position in PRQR in Q1 2019 and has held it in 22 quarters since. The position peaked at $807K in Q1 2021. 69 funds tracked by Wall St. Rank hold PRQR as of Q1 2026.

  • Simplex Trading held 24,868 shares of ProQR Therapeutics worth $40.3K as of Q1 2026.
  • Simplex Trading sold 19,401 ProQR Therapeutics shares in Q1 2026, an estimated $31.8K.
  • ProQR Therapeutics made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #6105 holding.
  • Simplex Trading first reported a position in ProQR Therapeutics in Q1 2019 and has held it in 22 quarters since.
  • Simplex Trading's ProQR Therapeutics position peaked at $807K in Q1 2021.
  • 69 funds tracked by Wall St. Rank held ProQR Therapeutics as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.