SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 53 filers reported holding SPERO THERAPEUTICS INC in Q3 2023. The put-call ratio across all filers is - and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $157,918 | -1.6% | 130,511 | +17.9% | 0.00% | – |
| Q2 2023 | $160,531 | 0.0% | 110,711 | 0.0% | 0.00% | – |
| Q1 2023 | $160,531 | -58.1% | 110,711 | -50.0% | 0.00% | – |
| Q4 2022 | $383,060 | +109.3% | 221,422 | +142.5% | 0.00% | – |
| Q3 2022 | $183,000 | +147.3% | 91,311 | -9.0% | 0.00% | – |
| Q2 2022 | $74,000 | -98.3% | 100,384 | -79.8% | 0.00% | – |
| Q1 2022 | $4,326,000 | -68.0% | 497,185 | -41.1% | 0.00% | -100.0% |
| Q4 2021 | $13,512,000 | -8.6% | 843,955 | +5.1% | 0.00% | 0.0% |
| Q3 2021 | $14,778,000 | +30.6% | 802,691 | -1.0% | 0.00% | 0.0% |
| Q2 2021 | $11,318,000 | -43.3% | 810,738 | -40.2% | 0.00% | 0.0% |
| Q1 2021 | $19,968,000 | +203.9% | 1,356,543 | +300.4% | 0.00% | – |
| Q4 2020 | $6,570,000 | +106.1% | 338,831 | +18.6% | 0.00% | – |
| Q3 2020 | $3,187,000 | -18.4% | 285,592 | -1.0% | 0.00% | – |
| Q2 2020 | $3,904,000 | +73.5% | 288,574 | +3.6% | 0.00% | – |
| Q1 2020 | $2,250,000 | +12.2% | 278,443 | +33.5% | 0.00% | – |
| Q4 2019 | $2,006,000 | -4.1% | 208,591 | +5.8% | 0.00% | – |
| Q3 2019 | $2,091,000 | +7.2% | 197,226 | +16.3% | 0.00% | – |
| Q2 2019 | $1,951,000 | +39.6% | 169,531 | +55.3% | 0.00% | – |
| Q1 2019 | $1,398,000 | +49.5% | 109,135 | -28.2% | 0.00% | – |
| Q4 2018 | $935,000 | -30.4% | 152,093 | +18.9% | 0.00% | – |
| Q3 2018 | $1,344,000 | +49.7% | 127,925 | +109.0% | 0.00% | – |
| Q2 2018 | $898,000 | +99.1% | 61,198 | +93.2% | 0.00% | – |
| Q1 2018 | $451,000 | – | 31,673 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Atlas Venture Associates IX, LLC | 1,376,968 | $17,639,000 | 16.57% |
| Aquilo Capital Management, LLC | 1,054,356 | $13,506,000 | 5.98% |
| VHCP Management II, LLC | 474,015 | $6,072,000 | 1.78% |
| AWM Investment Company, Inc. | 562,296 | $7,203,000 | 1.42% |
| Alphabet Inc. | 1,112,473 | $14,251,000 | 0.74% |
| BVF INC/IL | 460,706 | $5,902,000 | 0.66% |
| DAFNA Capital Management LLC | 70,000 | $897,000 | 0.39% |
| Artal Group S.A. | 600,000 | $7,686,000 | 0.31% |
| Rock Springs Capital Management LP | 525,000 | $6,725,000 | 0.26% |
| Orbimed Advisors | 507,471 | $6,501,000 | 0.10% |