SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 48 filers reported holding SPERO THERAPEUTICS INC in Q2 2024. The put-call ratio across all filers is 2.00 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2024 | $86 | +16.2% | 50 | 0.0% | 0.00% | – |
| Q4 2023 | $74 | -75.6% | 50 | -80.0% | 0.00% | – |
| Q3 2023 | $303 | -15.4% | 250 | 0.0% | 0.00% | – |
| Q2 2023 | $358 | 0.0% | 250 | 0.0% | 0.00% | – |
| Q1 2023 | $358 | -17.3% | 250 | 0.0% | 0.00% | – |
| Q4 2022 | $433 | -13.4% | 250 | 0.0% | 0.00% | -100.0% |
| Q3 2022 | $500 | +168.8% | 250 | 0.0% | 0.00% | – |
| Q2 2022 | $186 | -91.4% | 250 | 0.0% | 0.00% | -100.0% |
| Q1 2022 | $2,175 | -45.7% | 250 | 0.0% | 0.00% | -33.3% |
| Q4 2021 | $4,003 | – | 250 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Atlas Venture Associates IX, LLC | 1,376,968 | $11,126,000 | 23.53% |
| Aquilo Capital Management, LLC | 1,818,140 | $14,691,000 | 5.73% |
| VR Adviser, LLC | 474,015 | $3,830,000 | 1.04% |
| AWM Investment Company, Inc. | 395,949 | $3,199,000 | 0.85% |
| Alphabet Inc. | 1,112,473 | $8,989,000 | 0.59% |
| Novo Holdings A/S | 931,099 | $7,523,000 | 0.50% |
| BVF INC/IL | 563,393 | $4,552,000 | 0.42% |
| Rock Springs Capital Management LP | 605,000 | $4,888,000 | 0.20% |
| Artal Group S.A. | 576,000 | $4,654,000 | 0.20% |
| DAFNA Capital Management LLC | 48,103 | $389,000 | 0.16% |