SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 89 filers reported holding SPERO THERAPEUTICS INC in Q3 2021. The put-call ratio across all filers is 0.88 and the average weighting 0.3%.
Quarter-by-quarter ownership
Value | Shares | Weighting | ||||
---|---|---|---|---|---|---|
Q3 2022 | $38,000 | +171.4% | 19,000 | 0.0% | 0.00% | – |
Q2 2022 | $14,000 | -93.8% | 19,000 | -26.9% | 0.00% | -100.0% |
Q1 2022 | $226,000 | -81.2% | 26,000 | -65.3% | 0.00% | -80.0% |
Q4 2021 | $1,201,000 | -38.2% | 75,000 | -28.9% | 0.02% | -44.4% |
Q3 2021 | $1,942,000 | – | 105,500 | – | 0.03% | – |
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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% |