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
2025
Q3 		– Sell
-47,300
Closed -$96K – 9840
2025
Q2 		$96K Buy
47,300
+36,800
+350% +$59.9K ﹤0.01% 5281
2025
Q1 		$13K Sell
10,500
-400
-4% -$851 ﹤0.01% 6927
2024
Q4 		$28K Sell
10,900
-71,100
-87% -$226K ﹤0.01% 6428
2024
Q3 		$149K Buy
82,000
+81,100
+9,011% +$152K ﹤0.01% 4827
2024
Q2 		$1K Sell
900
-4,400
-83% -$8.54K ﹤0.01% 8533
2024
Q1 		$12K Buy
+5,300
New +$11.3K ﹤0.01% 7489
2023
Q4 		– Sell
-1,000
Closed -$1K – 9601
2023
Q3 		$1K Sell
1,000
-6,200
-86% -$9.75K ﹤0.01% 8395
2023
Q2 		$11K Sell
7,200
-11,400
-61% -$22.3K ﹤0.01% 7335
2023
Q1 		$39K Buy
18,600
+6,500
+54% +$19.9K ﹤0.01% 6208
2022
Q4 		$44K Sell
12,100
-6,400
-35% -$8.38K ﹤0.01% 6036
2022
Q3 		$13K Sell
18,500
-12,100
-40% -$9.72K ﹤0.01% 8000
2022
Q2 		$23K Sell
30,600
-117,100
-79% -$87.3K ﹤0.01% 7451
2022
Q1 		$133K Buy
147,700
+121,200
+457% +$406K ﹤0.01% 5737
2021
Q4 		$212K Buy
26,500
+5,200
+24% +$39.6K ﹤0.01% 5111
2021
Q3 		$141K Hold
21,300
– – ﹤0.01% 6129
2021
Q2 		$143K Buy
21,300
+20,729
+3,630% +$134K ﹤0.01% 6208
2021
Q1 		$377K Buy
+571
New +$2.92K ﹤0.01% 3796
2020
Q2 		– Sell
-2
Closed -$1K – 8197
2020
Q1 		$1K Buy
+2
New +$15 ﹤0.01% 7398
2019
Q1 		– Sell
-1
Closed -$1K – 7702
2018
Q4 		$1K Buy
+1
New +$18 ﹤0.01% 6773

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.