SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 89 filers reported holding SPERO THERAPEUTICS INC in Q3 2021. The put-call ratio across all filers is 0.88 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,076,874 | -16.6% | 889,979 | 0.0% | 0.07% | 0.0% |
| Q2 2023 | $1,290,469 | -0.0% | 889,979 | 0.0% | 0.07% | -4.2% |
| Q1 2023 | $1,290,470 | -16.2% | 889,979 | 0.0% | 0.07% | -19.1% |
| Q4 2022 | $1,539,664 | -13.5% | 889,979 | 0.0% | 0.09% | -2.2% |
| Q3 2022 | $1,780,000 | +170.1% | 889,979 | 0.0% | 0.09% | +152.8% |
| Q2 2022 | $659,000 | -91.5% | 889,979 | 0.0% | 0.04% | -85.7% |
| Q1 2022 | $7,743,000 | -45.7% | 889,979 | 0.0% | 0.25% | -27.0% |
| Q4 2021 | $14,249,000 | -13.0% | 889,979 | 0.0% | 0.34% | -11.6% |
| Q3 2021 | $16,385,000 | +31.9% | 889,979 | 0.0% | 0.39% | +53.8% |
| Q2 2021 | $12,424,000 | -5.2% | 889,979 | 0.0% | 0.25% | -52.1% |
| Q1 2021 | $13,100,000 | -24.1% | 889,979 | 0.0% | 0.53% | -36.2% |
| Q4 2020 | $17,257,000 | +39.0% | 889,979 | -20.0% | 0.83% | +42.0% |
| Q3 2020 | $12,415,000 | -17.5% | 1,112,473 | 0.0% | 0.58% | -16.1% |
| Q2 2020 | $15,052,000 | +67.4% | 1,112,473 | 0.0% | 0.70% | +17.8% |
| Q1 2020 | $8,989,000 | -16.0% | 1,112,473 | 0.0% | 0.59% | -8.8% |
| Q4 2019 | $10,696,000 | -9.3% | 1,112,473 | 0.0% | 0.65% | +82.8% |
| Q3 2019 | $11,792,000 | -7.9% | 1,112,473 | 0.0% | 0.35% | +45.7% |
| Q2 2019 | $12,805,000 | -10.1% | 1,112,473 | 0.0% | 0.24% | -67.0% |
| Q1 2019 | $14,251,000 | +108.3% | 1,112,473 | 0.0% | 0.74% | -9.0% |
| Q4 2018 | $6,842,000 | -41.5% | 1,112,473 | 0.0% | 0.81% | -27.8% |
| Q3 2018 | $11,692,000 | -28.4% | 1,112,473 | 0.0% | 1.12% | -18.3% |
| Q2 2018 | $16,320,000 | +2.9% | 1,112,473 | 0.0% | 1.37% | -46.8% |
| Q1 2018 | $15,853,000 | +21.3% | 1,112,473 | 0.0% | 2.58% | -27.3% |
| Q4 2017 | $13,072,000 | – | 1,112,473 | – | 3.55% | – |
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% |