QUANTUM SI INC's ticker is QSI and the CUSIP is 74765K105. A total of 98 filers reported holding QUANTUM SI INC in Q1 2023. The put-call ratio across all filers is 0.46 and the average weighting 0.0%.
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 | 924,404 | $1,654,683 | 1.21% |
| Fosun International Ltd | 743,935 | $1,331,644 | 0.19% |
| Knollwood Investment Advisory, LLC | 300,000 | $537,000 | 0.18% |
| ARK Investment Management | 12,754,531 | $22,830,610 | 0.15% |
| Neumann Advisory Hong Kong Ltd | 192,857 | $345 | 0.13% |
| Glenview Capital Management | 2,415,990 | $4,324,622 | 0.10% |
| Nikko Asset Management Americas, Inc. | 1,626,985 | $2,896,033 | 0.03% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 797,500 | $1,427,525 | 0.03% |
| Red Wave Investments LLC | 37,000 | $66,230 | 0.03% |
| Clearline Capital LP | 211,900 | $379,301 | 0.02% |