SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 101 filers reported holding SPERO THERAPEUTICS INC in Q1 2022. The put-call ratio across all filers is - and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $105,000 | -49.0% | 12,015 | -6.6% | 0.00% | 0.0% |
| Q4 2021 | $206,000 | -15.6% | 12,860 | -2.9% | 0.00% | 0.0% |
| Q3 2021 | $244,000 | +29.1% | 13,245 | -2.3% | 0.00% | 0.0% |
| Q2 2021 | $189,000 | +8.0% | 13,559 | +13.8% | 0.00% | 0.0% |
| Q1 2021 | $175,000 | -23.9% | 11,916 | +0.3% | 0.00% | 0.0% |
| Q4 2020 | $230,000 | +132.3% | 11,885 | +34.4% | 0.00% | – |
| Q3 2020 | $99,000 | -16.8% | 8,840 | +0.4% | 0.00% | -100.0% |
| Q2 2020 | $119,000 | +91.9% | 8,802 | +15.4% | 0.00% | – |
| Q1 2020 | $62,000 | -7.5% | 7,626 | +8.9% | 0.00% | – |
| Q4 2019 | $67,000 | -8.2% | 7,003 | +1.7% | 0.00% | – |
| Q3 2019 | $73,000 | -2.7% | 6,888 | +5.7% | 0.00% | – |
| Q2 2019 | $75,000 | +15.4% | 6,514 | +28.1% | 0.00% | – |
| Q1 2019 | $65,000 | +91.2% | 5,084 | -8.4% | 0.00% | – |
| Q4 2018 | $34,000 | -42.4% | 5,548 | -0.8% | 0.00% | – |
| Q3 2018 | $59,000 | -7.8% | 5,591 | +28.7% | 0.00% | – |
| Q2 2018 | $64,000 | +16.4% | 4,345 | +12.7% | 0.00% | – |
| Q1 2018 | $55,000 | +14.6% | 3,857 | -5.1% | 0.00% | – |
| Q4 2017 | $48,000 | – | 4,063 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Aquilo Capital Management, LLC | 3,829,209 | $53,456,000 | 13.89% |
| Atlas Venture Associates IX, LLC | 1,376,968 | $19,223,000 | 3.38% |
| BVF INC/IL | 2,137,978 | $29,846,000 | 1.12% |
| AWM Investment Company, Inc. | 372,755 | $5,204,000 | 0.51% |
| Novo Holdings A/S | 468,902 | $6,546,000 | 0.29% |
| Rock Springs Capital Management LP | 965,928 | $13,484,000 | 0.27% |
| Alphabet Inc. | 889,979 | $12,424,000 | 0.25% |
| Artal Group S.A. | 500,000 | $6,980,000 | 0.14% |
| Granahan Investment Management | 332,639 | $4,644,000 | 0.09% |
| Radnor Capital Management, LLC | 10,000 | $140,000 | 0.05% |