QUANTUM SI INC's ticker is QSI and the CUSIP is 74765K105. A total of 97 filers reported holding QUANTUM SI INC in Q4 2021. The put-call ratio across all filers is 0.36 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $87 | +2.4% | 52,045 | +9.8% | 0.00% | – |
| Q2 2023 | $85 | +3.7% | 47,381 | +2.2% | 0.00% | – |
| Q1 2023 | $82 | -3.5% | 46,351 | 0.0% | 0.00% | – |
| Q4 2022 | $85 | -99.9% | 46,351 | +4.6% | 0.00% | – |
| Q3 2022 | $122,000 | +35.6% | 44,313 | +14.5% | 0.00% | – |
| Q2 2022 | $90,000 | -98.4% | 38,714 | -96.8% | 0.00% | -100.0% |
| Q1 2022 | $5,662,000 | -69.5% | 1,209,736 | -48.7% | 0.00% | -50.0% |
| Q4 2021 | $18,567,000 | +1.4% | 2,359,250 | +7.5% | 0.00% | 0.0% |
| Q3 2021 | $18,303,000 | -28.6% | 2,194,600 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $25,618,000 | – | 2,194,600 | – | 0.00% | – |
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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% |