SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 90 filers reported holding SPERO THERAPEUTICS INC in Q2 2021. The put-call ratio across all filers is 0.74 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $69,421 | -92.8% | 57,373 | -91.4% | 0.00% | -91.3% |
| Q2 2023 | $970,823 | 0.0% | 669,533 | 0.0% | 0.02% | 0.0% |
| Q1 2023 | $970,823 | -16.2% | 669,533 | 0.0% | 0.02% | -17.9% |
| Q4 2022 | $1,158,292 | -24.8% | 669,533 | -13.1% | 0.03% | -30.0% |
| Q3 2022 | $1,541,000 | +169.9% | 770,710 | 0.0% | 0.04% | +135.3% |
| Q2 2022 | $571,000 | -93.4% | 770,710 | -22.2% | 0.02% | -92.2% |
| Q1 2022 | $8,621,000 | -43.0% | 990,913 | +4.8% | 0.22% | -38.0% |
| Q4 2021 | $15,134,000 | -12.7% | 945,313 | +0.4% | 0.35% | -3.8% |
| Q3 2021 | $17,334,000 | +28.6% | 941,543 | -2.5% | 0.36% | +36.8% |
| Q2 2021 | $13,484,000 | -5.2% | 965,928 | 0.0% | 0.27% | -14.2% |
| Q1 2021 | $14,218,000 | -40.6% | 965,928 | -21.8% | 0.31% | -39.0% |
| Q4 2020 | $23,947,000 | +73.6% | 1,235,000 | -0.1% | 0.51% | +45.1% |
| Q3 2020 | $13,797,000 | +65.8% | 1,236,256 | +101.0% | 0.35% | +53.5% |
| Q2 2020 | $8,323,000 | +70.3% | 615,177 | +1.7% | 0.23% | +12.9% |
| Q1 2020 | $4,888,000 | -3.2% | 605,000 | +15.2% | 0.20% | +27.0% |
| Q4 2019 | $5,048,000 | -9.3% | 525,000 | 0.0% | 0.16% | -28.4% |
| Q3 2019 | $5,565,000 | -7.9% | 525,000 | 0.0% | 0.22% | +1.4% |
| Q2 2019 | $6,043,000 | -10.1% | 525,000 | 0.0% | 0.22% | -15.4% |
| Q1 2019 | $6,725,000 | +108.3% | 525,000 | 0.0% | 0.26% | +70.4% |
| Q4 2018 | $3,229,000 | -41.5% | 525,000 | 0.0% | 0.15% | -24.0% |
| Q3 2018 | $5,518,000 | -28.4% | 525,000 | 0.0% | 0.20% | -32.4% |
| Q2 2018 | $7,702,000 | +3.0% | 525,000 | 0.0% | 0.30% | -7.2% |
| Q1 2018 | $7,481,000 | +21.3% | 525,000 | 0.0% | 0.32% | +13.9% |
| Q4 2017 | $6,169,000 | – | 525,000 | – | 0.28% | – |
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% |