Jane Street
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Jane Street’s ProQR Therapeutics PRQR Stock Holding History

Jane Street’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
Q2 		$846K Buy
455,104
+421,815
+1,267% +$695K ﹤0.01% 6880
2026
Q1 		$53.9K Sell
33,289
-126,886
-79% -$208K ﹤0.01% 10949
2025
Q4 		$324K Buy
160,175
+149,414
+1,388% +$349K ﹤0.01% 8659
2025
Q3 		$22.9K Sell
10,761
-4,143
-28% -$9.05K ﹤0.01% 10510
2025
Q2 		$30.4K Sell
14,904
-76,216
-84% -$124K ﹤0.01% 9287
2025
Q1 		$121K Buy
91,120
+79,720
+699% +$170K ﹤0.01% 8712
2024
Q4 		$30.2K Buy
+11,400
New +$36.2K ﹤0.01% 9079
2023
Q2 		– Sell
-55,868
Closed -$119K – 9395
2023
Q1 		$119K Buy
55,868
+37,121
+198% +$113K ﹤0.01% 8136
2022
Q4 		$69.4K Buy
18,747
+722
+4% +$946 ﹤0.01% 8254
2022
Q3 		$13K Sell
18,025
-129,533
-88% -$104K ﹤0.01% 9295
2022
Q2 		$115K Buy
147,558
+124,869
+550% +$93.1K ﹤0.01% 8557
2022
Q1 		$21K Buy
22,689
+5,515
+32% +$18.5K ﹤0.01% 9925
2021
Q4 		$138K Buy
17,174
+5,692
+50% +$43.3K ﹤0.01% 9054
2021
Q3 		$96K Buy
+11,482
New +$75K ﹤0.01% 9320
2021
Q2 		– Sell
-33,193
Closed -$219K – 10270
2021
Q1 		$219K Buy
33,193
+19,362
+140% +$98.9K ﹤0.01% 8141
2020
Q4 		$58K Buy
13,831
+1,819
+15% +$7.67K ﹤0.01% 7298
2020
Q3 		$58K Buy
+12,012
New +$62.8K ﹤0.01% 6889
2019
Q3 		– Sell
-10,134
Closed -$92K – 5600
2019
Q2 		$92K Buy
+10,134
New +$120K ﹤0.01% 4874

Other funds holding PRQR

Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return
AAA
Affinity Asset Advisors New York $2.21B AUM 431.26% 1-Year Est. Return
PFM
Privium Fund Management Amsterdam, Netherlands $544M AUM 72.49% 1-Year Est. Return
IC
Ikarian Capital Dallas, Texas $928M AUM 596.14% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
HCM
Heights Capital Management San Francisco, California $433M AUM 8.59% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
SFM
Sphera Funds Management Tel Aviv, Israel $767M AUM 119.71% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.81B AUM 192.15% 1-Year Est. Return

Jane Street's PRQR Position: Q2 2026 in Review

Jane Street increased its ProQR Therapeutics (PRQR) stake by 1,267% in Q2 2026, buying an estimated $695K and bringing the position to 455,104 shares worth $846K. The position accounts for ﹤0.01% of the portfolio, ranked #6880.

Jane Street first reported a position in PRQR in Q2 2019 and has held it in 18 quarters since. 71 funds tracked by Wall St. Rank hold PRQR as of Q2 2026.

  • Jane Street held 455,104 shares of ProQR Therapeutics worth $846K as of Q2 2026.
  • Jane Street bought 421,815 ProQR Therapeutics shares in Q2 2026, an estimated $695K.
  • ProQR Therapeutics made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #6880 holding.
  • Jane Street first reported a position in ProQR Therapeutics in Q2 2019 and has held it in 18 quarters since.
  • 71 funds tracked by Wall St. Rank held ProQR Therapeutics as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.