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 | $582,989 | -23.2% | 481,809 | -8.0% | 0.00% | – |
| Q2 2023 | $759,515 | +6.9% | 523,804 | +6.9% | 0.00% | – |
| Q1 2023 | $710,229 | -15.9% | 489,813 | +0.4% | 0.00% | – |
| Q4 2022 | $844,383 | -39.0% | 488,083 | -29.5% | 0.00% | – |
| Q3 2022 | $1,385,000 | +170.0% | 692,138 | +0.2% | 0.00% | – |
| Q2 2022 | $513,000 | -96.7% | 690,753 | -61.5% | 0.00% | – |
| Q1 2022 | $15,609,000 | -45.8% | 1,794,081 | -0.3% | 0.00% | -100.0% |
| Q4 2021 | $28,799,000 | -13.2% | 1,798,777 | -0.2% | 0.00% | 0.0% |
| Q3 2021 | $33,185,000 | +33.6% | 1,802,528 | +1.3% | 0.00% | 0.0% |
| Q2 2021 | $24,833,000 | -5.0% | 1,778,822 | +0.1% | 0.00% | 0.0% |
| Q1 2021 | $26,152,000 | -22.1% | 1,776,596 | +2.6% | 0.00% | 0.0% |
| Q4 2020 | $33,576,000 | +179.3% | 1,731,600 | +60.8% | 0.00% | – |
| Q3 2020 | $12,020,000 | -6.5% | 1,077,162 | +13.4% | 0.00% | -100.0% |
| Q2 2020 | $12,857,000 | +80.6% | 950,256 | +7.8% | 0.00% | – |
| Q1 2020 | $7,120,000 | -1.9% | 881,231 | +16.7% | 0.00% | – |
| Q4 2019 | $7,261,000 | +0.9% | 755,265 | +11.2% | 0.00% | – |
| Q3 2019 | $7,198,000 | -4.8% | 678,949 | +3.4% | 0.00% | – |
| Q2 2019 | $7,559,000 | +40.1% | 656,778 | +56.0% | 0.00% | – |
| Q1 2019 | $5,395,000 | +122.8% | 421,087 | +7.0% | 0.00% | – |
| Q4 2018 | $2,421,000 | -38.2% | 393,630 | +5.7% | 0.00% | – |
| Q3 2018 | $3,915,000 | -22.0% | 372,469 | +8.9% | 0.00% | – |
| Q2 2018 | $5,017,000 | +39.5% | 341,999 | +35.6% | 0.00% | – |
| Q1 2018 | $3,596,000 | +27.1% | 252,301 | +4.7% | 0.00% | – |
| Q4 2017 | $2,830,000 | – | 240,874 | – | 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% |