SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 81 filers reported holding SPERO THERAPEUTICS INC in Q2 2020. The put-call ratio across all filers is 0.33 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2022 | $3,859,000 | +68.6% | 1,929,376 | -37.6% | 0.16% | +43.2% |
| Q2 2022 | $2,289,000 | -83.4% | 3,089,615 | +94.9% | 0.11% | -79.9% |
| Q1 2022 | $13,795,000 | -45.7% | 1,585,615 | 0.0% | 0.55% | -40.1% |
| Q4 2021 | $25,386,000 | -23.8% | 1,585,615 | -12.4% | 0.92% | -29.2% |
| Q3 2021 | $33,310,000 | +11.6% | 1,809,352 | -15.4% | 1.30% | +16.2% |
| Q2 2021 | $29,846,000 | -5.2% | 2,137,978 | 0.0% | 1.12% | -5.2% |
| Q1 2021 | $31,471,000 | -27.6% | 2,137,978 | -4.7% | 1.18% | -31.0% |
| Q4 2020 | $43,497,000 | +189.9% | 2,243,278 | +66.9% | 1.71% | +109.4% |
| Q3 2020 | $15,003,000 | +127.9% | 1,344,334 | +176.3% | 0.82% | +101.2% |
| Q2 2020 | $6,583,000 | +44.6% | 486,540 | -13.6% | 0.41% | -4.2% |
| Q1 2020 | $4,552,000 | -44.0% | 563,393 | -33.4% | 0.42% | -31.2% |
| Q4 2019 | $8,129,000 | -18.4% | 845,405 | -10.0% | 0.62% | -41.2% |
| Q3 2019 | $9,961,000 | -7.9% | 939,704 | 0.0% | 1.05% | -11.3% |
| Q2 2019 | $10,816,000 | +83.3% | 939,704 | +104.0% | 1.18% | +78.7% |
| Q1 2019 | $5,902,000 | +13.8% | 460,706 | -45.4% | 0.66% | -2.5% |
| Q4 2018 | $5,185,000 | -66.8% | 843,146 | -43.3% | 0.68% | -50.7% |
| Q3 2018 | $15,640,000 | +1.6% | 1,488,088 | +41.9% | 1.37% | -8.5% |
| Q2 2018 | $15,388,000 | +2.9% | 1,048,958 | 0.0% | 1.50% | -0.9% |
| Q1 2018 | $14,948,000 | +23.6% | 1,048,958 | +1.9% | 1.52% | +3.9% |
| Q4 2017 | $12,093,000 | – | 1,029,185 | – | 1.46% | – |
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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% |