SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 62 filers reported holding SPERO THERAPEUTICS INC in Q2 2019. The put-call ratio across all filers is - and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $516,000 | -33.8% | 60,598 | 0.0% | 0.00% | – |
| Q4 2021 | $780,000 | -42.7% | 60,598 | -14.8% | 0.00% | – |
| Q3 2021 | $1,362,000 | +52.3% | 71,121 | +11.1% | 0.00% | – |
| Q2 2021 | $894,000 | -5.7% | 64,042 | -0.5% | 0.00% | – |
| Q1 2021 | $948,000 | -41.1% | 64,350 | -22.4% | 0.00% | -100.0% |
| Q4 2020 | $1,609,000 | +182.8% | 82,946 | +62.8% | 0.00% | – |
| Q3 2020 | $569,000 | -34.8% | 50,964 | -21.1% | 0.00% | – |
| Q2 2020 | $873,000 | +145.2% | 64,563 | +46.6% | 0.00% | – |
| Q1 2020 | $356,000 | -3.5% | 44,053 | +14.7% | 0.00% | – |
| Q4 2019 | $369,000 | -20.6% | 38,397 | -12.5% | 0.00% | – |
| Q3 2019 | $465,000 | +7.9% | 43,892 | +17.1% | 0.00% | – |
| Q2 2019 | $431,000 | – | 37,476 | – | 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% |