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
2021
Q2 		– Sell
-87,300
Closed -$577K – 10269
2021
Q1 		$577K Buy
+87,300
New +$446K ﹤0.01% 6550

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 $71.2B AUM 41.74% 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

Jane Street's PRQR Position: Q1 2026 in Review

Jane Street reduced its ProQR Therapeutics (PRQR) stake by 79% in Q1 2026, selling an estimated $208K and leaving 33,289 shares worth $53.9K. The position accounts for ﹤0.01% of the portfolio, ranked #10949.

Jane Street first reported a position in PRQR in Q2 2019 and has held it in 17 quarters since. The position peaked at $324K in Q4 2025. 69 funds tracked by Wall St. Rank hold PRQR as of Q1 2026.

  • Jane Street held 33,289 shares of ProQR Therapeutics worth $53.9K as of Q1 2026.
  • Jane Street sold 126,886 ProQR Therapeutics shares in Q1 2026, an estimated $208K.
  • ProQR Therapeutics made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10949 holding.
  • Jane Street first reported a position in ProQR Therapeutics in Q2 2019 and has held it in 17 quarters since.
  • Jane Street's ProQR Therapeutics position peaked at $324K in Q4 2025.
  • 69 funds tracked by Wall St. Rank held ProQR Therapeutics as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.