SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 35 filers reported holding SPERO THERAPEUTICS INC in Q1 2018. The put-call ratio across all filers is - and the average weighting 0.7%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $0 | – | 300 | +597.7% | 0.00% | – |
| Q3 2022 | $0 | -100.0% | 43 | -100.0% | 0.00% | – |
| Q1 2022 | $1,706,000 | -41.6% | 196,097 | +7.4% | 0.00% | -100.0% |
| Q4 2021 | $2,923,000 | -11.9% | 182,595 | +1.4% | 0.00% | 0.0% |
| Q3 2021 | $3,316,000 | +10953.3% | 180,102 | +8249.7% | 0.00% | – |
| Q2 2021 | $30,000 | 0.0% | 2,157 | +4.7% | 0.00% | – |
| Q1 2021 | $30,000 | +36.4% | 2,061 | +81.3% | 0.00% | – |
| Q4 2020 | $22,000 | +214.3% | 1,137 | +81.3% | 0.00% | – |
| Q3 2020 | $7,000 | 0.0% | 627 | +18.5% | 0.00% | – |
| Q2 2020 | $7,000 | +40.0% | 529 | -8.5% | 0.00% | – |
| Q1 2020 | $5,000 | -58.3% | 578 | -51.7% | 0.00% | – |
| Q4 2019 | $12,000 | +300.0% | 1,196 | +298.7% | 0.00% | – |
| Q3 2019 | $3,000 | +50.0% | 300 | +50.0% | 0.00% | – |
| Q2 2019 | $2,000 | -33.3% | 200 | 0.0% | 0.00% | – |
| Q1 2019 | $3,000 | – | 200 | +1150.0% | 0.00% | – |
| Q4 2018 | $0 | -100.0% | 16 | -88.4% | 0.00% | – |
| Q3 2018 | $1,000 | -50.0% | 138 | +31.4% | 0.00% | – |
| Q2 2018 | $2,000 | – | 105 | +5150.0% | 0.00% | – |
| Q1 2018 | $0 | -100.0% | 2 | -97.0% | 0.00% | – |
| Q4 2017 | $1,000 | – | 66 | – | 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% |