SPERO THERAPEUTICS INC's ticker is SPRO and the CUSIP is 84833T103. A total of 61 filers reported holding SPERO THERAPEUTICS INC in Q4 2022. The put-call ratio across all filers is 0.35 and the average weighting 0.2%.
Quarter-by-quarter ownership
Value | Shares | Weighting | ||||
---|---|---|---|---|---|---|
Q3 2022 | $1,454,000 | -77.0% | 727 | 0.0% | 0.00% | -100.0% |
Q1 2022 | $6,325,000 | -45.7% | 727 | 0.0% | 0.00% | -50.0% |
Q4 2021 | $11,639,000 | -13.0% | 727 | 0.0% | 0.00% | 0.0% |
Q3 2021 | $13,384,000 | +31.9% | 727 | 0.0% | 0.00% | 0.0% |
Q2 2021 | $10,148,000 | +53310.5% | 727 | +72600.0% | 0.00% | – |
Q4 2020 | $19,000 | – | 1 | – | 0.00% | – |
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Other shareholders
Name | Shares | Value | Weighting ↓ |
---|---|---|---|
Atlas Venture Associates IX, LLC | 1,376,968 | $14,596,000 | 24.02% |
Aquilo Capital Management, LLC | 1,154,356 | $12,236,000 | 8.62% |
VHCP Management II, LLC | 474,015 | $5,025,000 | 1.92% |
AWM Investment Company, Inc. | 598,315 | $6,342,000 | 1.35% |
BVF INC/IL | 939,704 | $9,961,000 | 1.05% |
Novo Holdings A/S | 465,983 | $4,939,000 | 0.85% |
Alphabet Inc. | 1,112,473 | $11,792,000 | 0.35% |
Artal Group S.A. | 540,000 | $5,724,000 | 0.23% |
Rock Springs Capital Management LP | 525,000 | $5,565,000 | 0.22% |
DAFNA Capital Management LLC | 39,395 | $418,000 | 0.16% |