SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 80 filers reported holding SPERO THERAPEUTICS INC in Q3 2020. The put-call ratio across all filers is 2.52 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $34,564 | -16.6% | 28,565 | 0.0% | 0.00% | – |
| Q2 2023 | $41,419 | 0.0% | 28,565 | 0.0% | 0.00% | – |
| Q1 2023 | $41,419 | -16.2% | 28,565 | 0.0% | 0.00% | – |
| Q4 2022 | $49,417 | -91.3% | 28,565 | -56.4% | 0.00% | – |
| Q1 2022 | $571,000 | -45.6% | 65,547 | 0.0% | 0.00% | – |
| Q4 2021 | $1,050,000 | -10.3% | 65,547 | +3.1% | 0.00% | – |
| Q3 2021 | $1,171,000 | +38.6% | 63,586 | +5.1% | 0.00% | – |
| Q2 2021 | $845,000 | +7.5% | 60,496 | +13.4% | 0.00% | – |
| Q1 2021 | $786,000 | -21.9% | 53,358 | +2.9% | 0.00% | – |
| Q4 2020 | $1,006,000 | +154.0% | 51,831 | +46.2% | 0.00% | – |
| Q3 2020 | $396,000 | -17.5% | 35,454 | 0.0% | 0.00% | – |
| Q2 2020 | $480,000 | +89.0% | 35,454 | +13.0% | 0.00% | – |
| Q1 2020 | $254,000 | -3.1% | 31,364 | +15.2% | 0.00% | – |
| Q4 2019 | $262,000 | -9.3% | 27,226 | 0.0% | 0.00% | – |
| Q3 2019 | $289,000 | -0.3% | 27,226 | +8.4% | 0.00% | – |
| Q2 2019 | $290,000 | +17.4% | 25,118 | +30.7% | 0.00% | – |
| Q1 2019 | $247,000 | +174.4% | 19,223 | +32.3% | 0.00% | – |
| Q4 2018 | $90,000 | -41.2% | 14,527 | 0.0% | 0.00% | – |
| Q3 2018 | $153,000 | – | 14,527 | – | 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% |