SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 61 filers reported holding SPERO THERAPEUTICS INC in Q4 2022. The put-call ratio across all filers is 0.35 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,637,497 | -16.6% | 1,353,303 | 0.0% | 13.93% | +29.7% |
| Q2 2023 | $1,962,289 | -1.7% | 1,353,303 | -1.7% | 10.74% | +14.6% |
| Q1 2023 | $1,996,604 | -16.2% | 1,376,968 | 0.0% | 9.37% | -20.9% |
| Q4 2022 | $2,382,155 | -13.5% | 1,376,968 | 0.0% | 11.85% | +45.2% |
| Q3 2022 | $2,754,000 | +170.3% | 1,376,968 | 0.0% | 8.16% | +252.6% |
| Q2 2022 | $1,019,000 | -91.5% | 1,376,968 | 0.0% | 2.32% | -79.0% |
| Q1 2022 | $11,980,000 | -45.7% | 1,376,968 | 0.0% | 11.02% | +14.5% |
| Q4 2021 | $22,045,000 | -13.0% | 1,376,968 | 0.0% | 9.62% | +14.2% |
| Q3 2021 | $25,350,000 | +31.9% | 1,376,968 | 0.0% | 8.43% | +149.1% |
| Q2 2021 | $19,223,000 | -5.2% | 1,376,968 | 0.0% | 3.38% | -0.7% |
| Q1 2021 | $20,269,000 | -24.1% | 1,376,968 | 0.0% | 3.40% | -19.5% |
| Q4 2020 | $26,700,000 | +73.7% | 1,376,968 | 0.0% | 4.23% | -73.4% |
| Q3 2020 | $15,367,000 | -17.5% | 1,376,968 | 0.0% | 15.90% | -20.2% |
| Q2 2020 | $18,631,000 | +67.5% | 1,376,968 | 0.0% | 19.92% | -15.3% |
| Q1 2020 | $11,126,000 | -16.0% | 1,376,968 | 0.0% | 23.53% | +1.9% |
| Q4 2019 | $13,247,000 | -9.2% | 1,376,968 | 0.0% | 23.08% | -3.9% |
| Q3 2019 | $14,596,000 | -7.9% | 1,376,968 | 0.0% | 24.02% | +41.7% |
| Q2 2019 | $15,849,000 | -10.1% | 1,376,968 | 0.0% | 16.95% | +2.3% |
| Q1 2019 | $17,639,000 | +108.3% | 1,376,968 | 0.0% | 16.57% | +69.9% |
| Q4 2018 | $8,468,000 | -41.5% | 1,376,968 | 0.0% | 9.75% | +27.3% |
| Q3 2018 | $14,472,000 | -28.4% | 1,376,968 | 0.0% | 7.66% | -13.9% |
| Q2 2018 | $20,200,000 | +2.9% | 1,376,968 | 0.0% | 8.89% | -40.1% |
| Q1 2018 | $19,622,000 | +21.3% | 1,376,968 | 0.0% | 14.83% | +3.5% |
| Q4 2017 | $16,179,000 | – | 1,376,968 | – | 14.33% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Aquilo Capital Management, LLC | 3,932,209 | $76,246,000 | 15.85% |
| Atlas Venture Associates XI, LLC | 1,376,968 | $26,700,000 | 4.23% |
| Atlas Venture Associates IX, LLC | 1,376,968 | $26,700,000 | 4.23% |
| BVF INC/IL | 2,243,278 | $43,497,000 | 1.71% |
| AWM Investment Company, Inc. | 372,755 | $7,228,000 | 0.92% |
| Alphabet Inc. | 889,979 | $17,257,000 | 0.83% |
| Rock Springs Capital Management LP | 1,235,000 | $23,947,000 | 0.51% |
| Novo Holdings A/S | 576,702 | $11,182,000 | 0.48% |
| Artal Group S.A. | 500,000 | $9,695,000 | 0.21% |
| Granahan Investment Management | 420,320 | $8,150,000 | 0.18% |