SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 62 filers reported holding SPERO THERAPEUTICS INC in Q4 2019. The put-call ratio across all filers is - and the average weighting 0.5%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2020 | $0 | -100.0% | 14 | -100.0% | 0.00% | – |
| Q4 2019 | $308,000 | -9.4% | 32,000 | 0.0% | 0.00% | – |
| Q3 2019 | $340,000 | -7.6% | 32,000 | 0.0% | 0.00% | – |
| Q2 2019 | $368,000 | -10.2% | 32,000 | 0.0% | 0.00% | – |
| Q1 2019 | $410,000 | +318.4% | 32,000 | +102.5% | 0.00% | – |
| Q4 2018 | $98,000 | -7.5% | 15,800 | +58.0% | 0.00% | – |
| Q3 2018 | $106,000 | -27.4% | 10,000 | 0.0% | 0.00% | – |
| Q2 2018 | $146,000 | – | 10,000 | – | 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% |