SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 80 filers reported holding SPERO THERAPEUTICS INC in Q3 2020. The put-call ratio across all filers is 2.52 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $10,875 | -21.3% | 8,988 | -5.7% | 0.00% | – |
| Q2 2023 | $13,819 | -37.4% | 9,530 | -37.4% | 0.00% | – |
| Q1 2023 | $22,084 | -25.2% | 15,230 | -10.8% | 0.00% | – |
| Q4 2022 | $29,543 | -22.3% | 17,077 | -11.3% | 0.00% | – |
| Q3 2022 | $38,000 | -73.6% | 19,254 | -90.1% | 0.00% | – |
| Q2 2022 | $144,000 | -77.3% | 194,431 | +166.4% | 0.00% | – |
| Q1 2022 | $635,000 | -21.4% | 72,996 | +44.6% | 0.00% | – |
| Q4 2021 | $808,000 | -22.4% | 50,485 | -10.6% | 0.00% | – |
| Q3 2021 | $1,041,000 | +6.9% | 56,501 | -19.0% | 0.00% | – |
| Q2 2021 | $974,000 | -65.0% | 69,772 | -63.1% | 0.00% | – |
| Q1 2021 | $2,781,000 | -47.1% | 188,949 | -30.3% | 0.00% | -100.0% |
| Q4 2020 | $5,259,000 | +1954.3% | 271,258 | +1082.9% | 0.00% | – |
| Q3 2020 | $256,000 | -26.4% | 22,932 | -11.0% | 0.00% | – |
| Q2 2020 | $348,000 | +3063.6% | 25,770 | +1746.0% | 0.00% | – |
| Q1 2020 | $11,000 | -93.1% | 1,396 | -91.6% | 0.00% | – |
| Q4 2019 | $159,000 | +253.3% | 16,554 | +293.3% | 0.00% | – |
| Q3 2019 | $45,000 | +164.7% | 4,209 | +182.1% | 0.00% | – |
| Q2 2019 | $17,000 | -58.5% | 1,492 | -53.5% | 0.00% | – |
| Q1 2019 | $41,000 | -75.0% | 3,207 | -88.0% | 0.00% | – |
| Q4 2018 | $164,000 | +11.6% | 26,799 | +91.1% | 0.00% | – |
| Q3 2018 | $147,000 | -31.3% | 14,024 | -3.9% | 0.00% | – |
| Q2 2018 | $214,000 | +36.3% | 14,594 | +32.3% | 0.00% | – |
| Q1 2018 | $157,000 | +26.6% | 11,030 | +4.5% | 0.00% | – |
| Q4 2017 | $124,000 | – | 10,553 | – | 0.00% | – |
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% |