SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 37 filers reported holding SPERO THERAPEUTICS INC in Q4 2017. The put-call ratio across all filers is - and the average weighting 0.6%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $286 | -16.4% | 236 | 0.0% | 0.00% | – |
| Q2 2023 | $342 | – | 236 | 0.0% | 0.00% | – |
| Q1 2023 | $0 | – | 236 | 0.0% | 0.00% | – |
| Q4 2022 | $0 | -100.0% | 236 | -85.1% | 0.00% | – |
| Q3 2022 | $3,000 | +200.0% | 1,588 | +24.5% | 0.00% | – |
| Q2 2022 | $1,000 | -99.9% | 1,275 | -98.4% | 0.00% | – |
| Q1 2022 | $706,000 | -54.6% | 81,172 | -16.5% | 0.00% | – |
| Q4 2021 | $1,556,000 | -19.5% | 97,185 | -7.4% | 0.00% | – |
| Q3 2021 | $1,932,000 | +19.4% | 104,934 | -9.4% | 0.00% | – |
| Q2 2021 | $1,618,000 | +60.4% | 115,856 | +69.0% | 0.00% | – |
| Q1 2021 | $1,009,000 | -29.4% | 68,569 | -6.9% | 0.00% | – |
| Q4 2020 | $1,429,000 | +59.7% | 73,675 | -18.0% | 0.00% | – |
| Q3 2020 | $895,000 | -33.7% | 89,888 | -9.9% | 0.00% | – |
| Q2 2020 | $1,349,000 | +113.8% | 99,775 | +27.7% | 0.00% | – |
| Q1 2020 | $631,000 | -50.7% | 78,106 | -41.4% | 0.00% | – |
| Q4 2019 | $1,281,000 | -27.5% | 133,278 | -20.1% | 0.00% | – |
| Q3 2019 | $1,768,000 | -3.2% | 166,726 | +1.4% | 0.00% | – |
| Q2 2019 | $1,826,000 | -5.3% | 164,389 | +9.2% | 0.00% | – |
| Q1 2019 | $1,929,000 | +68.5% | 150,575 | -19.1% | 0.00% | – |
| Q4 2018 | $1,145,000 | -38.3% | 186,176 | +5.5% | 0.00% | – |
| Q3 2018 | $1,855,000 | -8.8% | 176,483 | +27.3% | 0.00% | – |
| Q2 2018 | $2,034,000 | -44.3% | 138,643 | -45.9% | 0.00% | -100.0% |
| Q1 2018 | $3,653,000 | +24253.3% | 256,353 | +19604.3% | 0.00% | – |
| Q4 2017 | $15,000 | – | 1,301 | – | 0.00% | – |
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% |