SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 86 filers reported holding SPERO THERAPEUTICS INC in Q4 2021. The put-call ratio across all filers is 0.92 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,884,691 | -14.9% | 1,557,596 | +2.0% | 0.00% | – |
| Q2 2023 | $2,213,387 | +7.0% | 1,526,474 | +7.0% | 0.00% | – |
| Q1 2023 | $2,068,528 | +13.4% | 1,426,571 | +35.3% | 0.00% | – |
| Q4 2022 | $1,824,091 | -13.4% | 1,054,388 | +0.1% | 0.00% | – |
| Q3 2022 | $2,107,000 | +128.0% | 1,053,723 | -15.4% | 0.00% | – |
| Q2 2022 | $924,000 | -92.3% | 1,245,992 | -9.3% | 0.00% | – |
| Q1 2022 | $11,953,000 | -44.8% | 1,373,928 | +1.7% | 0.00% | – |
| Q4 2021 | $21,636,000 | -9.1% | 1,351,378 | +4.6% | 0.00% | -100.0% |
| Q3 2021 | $23,794,000 | +33.5% | 1,292,498 | +1.2% | 0.00% | – |
| Q2 2021 | $17,824,000 | +9.4% | 1,276,790 | +15.4% | 0.00% | – |
| Q1 2021 | $16,292,000 | -25.7% | 1,106,696 | -2.1% | 0.00% | -100.0% |
| Q4 2020 | $21,925,000 | +111.5% | 1,130,730 | +21.7% | 0.00% | – |
| Q3 2020 | $10,366,000 | +4.2% | 928,898 | +26.3% | 0.00% | – |
| Q2 2020 | $9,948,000 | +95.8% | 735,234 | +17.0% | 0.00% | – |
| Q1 2020 | $5,080,000 | +6.4% | 628,588 | +26.6% | 0.00% | – |
| Q4 2019 | $4,773,000 | -9.3% | 496,401 | -0.1% | 0.00% | – |
| Q3 2019 | $5,265,000 | +4.6% | 496,687 | +13.6% | 0.00% | – |
| Q2 2019 | $5,032,000 | -6.1% | 437,204 | +4.5% | 0.00% | – |
| Q1 2019 | $5,359,000 | +435.9% | 418,390 | +157.4% | 0.00% | – |
| Q4 2018 | $1,000,000 | -79.1% | 162,564 | -64.3% | 0.00% | – |
| Q3 2018 | $4,787,000 | +161.4% | 455,416 | +264.8% | 0.00% | – |
| Q2 2018 | $1,831,000 | +15.7% | 124,836 | +12.4% | 0.00% | – |
| Q1 2018 | $1,582,000 | +196.3% | 111,039 | +144.1% | 0.00% | – |
| Q4 2017 | $534,000 | – | 45,489 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Atlas Venture Associates IX, LLC | 1,376,968 | $13,247,000 | 23.08% |
| Aquilo Capital Management, LLC | 1,154,356 | $11,099,000 | 4.17% |
| VHCP Management II, LLC | 474,015 | $4,558,000 | 1.20% |
| AWM Investment Company, Inc. | 474,344 | $4,561,000 | 0.89% |
| Alphabet Inc. | 1,112,473 | $10,696,000 | 0.65% |
| BVF INC/IL | 845,405 | $8,129,000 | 0.62% |
| Novo Holdings A/S | 931,099 | $8,948,000 | 0.58% |
| Artal Group S.A. | 500,000 | $4,808,000 | 0.19% |
| Rock Springs Capital Management LP | 525,000 | $5,048,000 | 0.16% |
| Granahan Investment Management | 148,867 | $1,431,000 | 0.07% |