PROQR THRAPEUTICS N V's ticker is PRQR and the CUSIP is N71542109. A total of 77 filers reported holding PROQR THRAPEUTICS N V in Q4 2021. The put-call ratio across all filers is 2.49 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $16,000 | -88.3% | 2,025 | -87.6% | 0.00% | -94.4% |
| Q3 2021 | $137,000 | +61.2% | 16,336 | +29.7% | 0.04% | +89.5% |
| Q2 2021 | $85,000 | +34.9% | 12,600 | +31.2% | 0.02% | +35.7% |
| Q1 2021 | $63,000 | +2000.0% | 9,600 | +1500.0% | 0.01% | +1300.0% |
| Q4 2020 | $3,000 | 0.0% | 600 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $3,000 | -62.5% | 600 | -53.2% | 0.00% | -50.0% |
| Q2 2020 | $8,000 | +60.0% | 1,282 | +53.2% | 0.00% | 0.0% |
| Q1 2020 | $5,000 | -64.3% | 837 | -40.2% | 0.00% | -60.0% |
| Q4 2019 | $14,000 | +366.7% | 1,400 | +133.3% | 0.01% | +400.0% |
| Q3 2019 | $3,000 | +50.0% | 600 | +100.0% | 0.00% | 0.0% |
| Q2 2019 | $2,000 | -50.0% | 300 | 0.0% | 0.00% | -50.0% |
| Q1 2019 | $4,000 | -84.0% | 300 | -81.2% | 0.00% | -83.3% |
| Q4 2018 | $25,000 | – | 1,600 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| DAFNA Capital Management LLC | 1,237,400 | $5,197,000 | 1.55% |
| Prosight Management, LP | 255,000 | $1,071,000 | 0.50% |
| RTW INVESTMENTS, LP | 5,009,768 | $21,041,000 | 0.35% |
| Kerrisdale Advisers, LLC | 453,182 | $1,903,000 | 0.15% |
| Artal Group S.A. | 1,196,218 | $5,024,000 | 0.11% |
| COWEN AND COMPANY, LLC | 285,696 | $1,200,000 | 0.11% |
| Golden Green, Inc. | 16,999 | $71,000 | 0.07% |
| APOGEM CAPITAL LLC | 15,855 | $67,000 | 0.04% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 4,550,062 | $19,110,000 | 0.04% |
| ALTRINSIC GLOBAL ADVISORS LLC | 241,360 | $1,014,000 | 0.03% |