QUANTUM SI INC's ticker is QSI and the CUSIP is 74765K105. A total of 76 filers reported holding QUANTUM SI INC in Q3 2021. The put-call ratio across all filers is 0.53 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $0 | -100.0% | 17 | -98.6% | 0.00% | – |
| Q4 2022 | $1 | -99.9% | 1,250 | +4.2% | 0.00% | – |
| Q3 2022 | $1,000 | 0.0% | 1,200 | 0.0% | 0.00% | – |
| Q2 2022 | $1,000 | – | 1,200 | -18.4% | 0.00% | – |
| Q1 2022 | $0 | -100.0% | 1,470 | +267.5% | 0.00% | – |
| Q4 2021 | $2,000 | -93.9% | 400 | -98.5% | 0.00% | -100.0% |
| Q3 2021 | $33,000 | -77.2% | 26,191 | -50.3% | 0.00% | -85.7% |
| Q2 2021 | $145,000 | – | 52,691 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Foresite Capital Management V, LLC | 2,342,061 | $19,533,000 | 6.07% |
| Foresite Capital Management IV, LLC | 4,463,619 | $37,227,000 | 5.48% |
| Glenview Capital Management | 6,000,000 | $50,040,000 | 0.91% |
| Neumann Advisory Hong Kong Ltd | 492,733 | $4,109 | 0.73% |
| Fosun International Ltd | 743,936 | $6,204,000 | 0.32% |
| Clearline Capital LP | 377,897 | $3,152,000 | 0.30% |
| ARK Investment Management | 12,698,381 | $105,904,000 | 0.25% |
| ASSET MANAGEMENT CORP /IL/ /ADV | 59,444 | $496,000 | 0.25% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 1,400,000 | $11,676,000 | 0.23% |
| Rubric Capital Management LP | 672,385 | $5,608,000 | 0.16% |