SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 56 filers reported holding SPERO THERAPEUTICS INC in Q1 2019. The put-call ratio across all filers is - and the average weighting 0.5%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $1,380,000 | -45.3% | 123,688 | -33.6% | 0.01% | -48.1% |
| Q2 2020 | $2,521,000 | +332.4% | 186,350 | +158.1% | 0.03% | +285.7% |
| Q1 2020 | $583,000 | +32.2% | 72,195 | +57.4% | 0.01% | +75.0% |
| Q4 2019 | $441,000 | +312.1% | 45,853 | +355.6% | 0.00% | +300.0% |
| Q3 2019 | $107,000 | -78.2% | 10,065 | -73.7% | 0.00% | -85.7% |
| Q1 2019 | $490,000 | +415.8% | 38,222 | +147.6% | 0.01% | +250.0% |
| Q4 2018 | $95,000 | -45.4% | 15,440 | -6.6% | 0.00% | 0.0% |
| Q3 2018 | $174,000 | -64.8% | 16,523 | -50.9% | 0.00% | -75.0% |
| Q2 2018 | $494,000 | – | 33,678 | – | 0.01% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Atlas Venture Associates IX, LLC | 1,376,968 | $13,247,000 | 23.08% |
| Aquilo Capital Management, LLC | 1,154,356 | $11,099,000 | 4.17% |
| VHCP Management II, LLC | 474,015 | $4,558,000 | 1.20% |
| AWM Investment Company, Inc. | 474,344 | $4,561,000 | 0.89% |
| Alphabet Inc. | 1,112,473 | $10,696,000 | 0.65% |
| BVF INC/IL | 845,405 | $8,129,000 | 0.62% |
| Novo Holdings A/S | 931,099 | $8,948,000 | 0.58% |
| Artal Group S.A. | 500,000 | $4,808,000 | 0.19% |
| Rock Springs Capital Management LP | 525,000 | $5,048,000 | 0.16% |
| Granahan Investment Management | 148,867 | $1,431,000 | 0.07% |