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 2023 | $10,626 | -44.6% | 8,782 | -33.7% | 0.00% | – |
| Q2 2023 | $19,193 | -28.1% | 13,237 | -28.1% | 0.00% | – |
| Q1 2023 | $26,705 | +94.5% | 18,417 | +132.0% | 0.00% | – |
| Q4 2022 | $13,733 | -27.7% | 7,938 | -18.8% | 0.00% | – |
| Q3 2022 | $19,000 | +35.7% | 9,781 | -47.3% | 0.00% | – |
| Q2 2022 | $14,000 | -83.5% | 18,575 | +89.3% | 0.00% | – |
| Q1 2022 | $85,000 | -87.3% | 9,810 | -76.4% | 0.00% | – |
| Q4 2021 | $667,000 | +165.7% | 41,653 | +204.7% | 0.00% | – |
| Q3 2021 | $251,000 | +134.6% | 13,668 | +77.5% | 0.00% | – |
| Q2 2021 | $107,000 | -61.4% | 7,701 | -59.1% | 0.00% | – |
| Q1 2021 | $277,000 | +59.2% | 18,819 | +109.8% | 0.00% | – |
| Q4 2020 | $174,000 | +4.2% | 8,969 | -40.3% | 0.00% | – |
| Q3 2020 | $167,000 | -26.1% | 15,012 | -10.4% | 0.00% | – |
| Q2 2020 | $226,000 | +182.5% | 16,748 | +68.8% | 0.00% | – |
| Q1 2020 | $80,000 | -54.3% | 9,919 | -45.6% | 0.00% | – |
| Q4 2019 | $175,000 | +10.1% | 18,226 | +21.7% | 0.00% | – |
| Q3 2019 | $159,000 | +21.4% | 14,973 | +31.7% | 0.00% | – |
| Q2 2019 | $131,000 | -87.6% | 11,370 | -86.2% | 0.00% | – |
| Q1 2019 | $1,055,000 | +106.9% | 82,439 | -0.7% | 0.00% | – |
| Q4 2018 | $510,000 | +1143.9% | 83,009 | +2036.1% | 0.00% | – |
| Q3 2018 | $41,000 | +46.4% | 3,886 | +106.6% | 0.00% | – |
| Q2 2018 | $28,000 | +366.7% | 1,881 | +309.8% | 0.00% | – |
| Q1 2018 | $6,000 | -50.0% | 459 | -52.6% | 0.00% | – |
| Q4 2017 | $12,000 | – | 969 | – | 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% |