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 2022 | $0 | – | 110 | 0.0% | 0.00% | – |
Q2 2022 | $0 | -100.0% | 110 | 0.0% | 0.00% | – |
Q1 2022 | $1,000 | -50.0% | 110 | 0.0% | 0.00% | – |
Q4 2021 | $2,000 | 0.0% | 110 | 0.0% | 0.00% | – |
Q3 2021 | $2,000 | +100.0% | 110 | +115.7% | 0.00% | – |
Q2 2021 | $1,000 | 0.0% | 51 | 0.0% | 0.00% | – |
Q1 2021 | $1,000 | 0.0% | 51 | 0.0% | 0.00% | – |
Q4 2020 | $1,000 | – | 51 | – | 0.00% | – |
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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% |