結合量子矽
US ˙ NasdaqGM ˙ US74765K1051

SecurityQSI / Quantum-Si incorporated
InstitutionBarclays Plc
Latest Disclosed Ownership269,415 shares
Latest Disclosed Value $ 296,357
Barclays Plc reports 21.79% increase in ownership of QSI / Quantum-Si incorporated

On February 13, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 269,415 shares of Quantum-Si incorporated (US:QSI) valued at $296,356 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 31, 2026 disclosing 221,210 shares of Quantum-Si incorporated. This represents a change in shares of 21.79% during the quarter. The current value of the position is $280,192 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F QUANTUM SI COM 74765K105 269,415 48,205 21.79 296 -4.82 0.0001
2026-03-31 2025-09-30 13F/A-3 QUANTUM SI COM 74765K105 221,210 -17,791 -7.44 312 -33.55 0.0001
2026-03-19 2025-09-30 13F/A-2 QUANTUM SI COM 74765K105 196,826 -42,175 174 0.0000
2025-11-12 2025-09-30 13F QUANTUM SI COM 74765K105 221,210 -17,791 312 0.0001
2026-02-27 2025-06-30 13F/A-2 QUANTUM SI COM 74765K105 239,001 118,113 97.70 468 222.76 0.0001
2025-08-14 2025-06-30 13F/A-1 QUANTUM SI COM 74765K105 239,001 118,113 0 0.0001
2025-08-13 2025-06-30 13F QUANTUM SI COM 74765K105 239,001 118,113 0 0.0000
2026-03-17 2025-03-31 13F/A-1 QUANTUM SI COM 74765K105 120,888 -29,728 -19.74 145 -64.29 0.0000
2025-05-15 2025-03-31 13F QUANTUM SI COM 74765K105 120,888 -29,728 0 0.0000
2026-03-19 2024-12-31 13F/A-1 QUANTUM SI COM 74765K105 150,616 -46,210 -23.48 407 134.68 0.0001
2025-02-13 2024-12-31 13F QUANTUM SI COM 74765K105 150,616 -46,210 0 0.0001
2026-03-31 2024-09-30 13F/A-2 QUANTUM SI COM 74765K105 196,826 133,438 210.51 174 162.12 0.0000
2024-11-19 2024-09-30 13F/A-1 QUANTUM SI COM 74765K105 196,826 133,438 0 0.0000
2024-11-15 2024-09-30 13F QUANTUM SI COM 74765K105 196,826 133,438 0 0.0000
2026-03-23 2024-06-30 13F/A-1 QUANTUM SI COM 74765K105 63,388 -37,967 -37.46 67 -66.83 0.0000
2024-08-14 2024-06-30 13F QUANTUM SI COM 74765K105 63,388 -37,967 0 0.0000
2026-03-24 2024-03-31 13F/A-1 QUANTUM SI COM 74765K105 101,355 -68,253 -40.24 200 -41.47 0.0001
2024-05-15 2024-03-31 13F QUANTUM SI COM 74765K105 101,355 -68,253 0 0.0001
2026-03-25 2023-12-31 13F/A-1 QUANTUM SI COM 74765K105 169,608 121,670 253.81 341 330.38 0.0001
2024-02-15 2023-12-31 13F QUANTUM SI COM 74765K105 169,608 121,670 0 0.0001
2026-03-26 2023-09-30 13F/A-1 QUANTUM SI COM 74765K105 47,938 -1,839 -3.69 80 -11.24 0.0000
2023-11-07 2023-09-30 13F QUANTUM SI COM 74765K105 47,938 -1,839 0 0.0000
2026-03-30 2023-06-30 13F/A-2 QUANTUM SI COM 74765K105 49,777 -26,358 -34.62 89 -33.08 0.0001
2023-09-20 2023-06-30 13F/A-1 QUANTUM SI COM 74765K105 49,777 -26,358 0 0.0001
2023-08-03 2023-06-30 13F QUANTUM SI COM 74765K105 49,777 -26,358 0 0.0001
2026-03-30 2023-03-31 13F/A-1 QUANTUM SI COM 74765K105 76,135 21,850 40.25 134 34.34 0.0001
2023-05-04 2023-03-31 13F QUANTUM SI COM 74765K105 76,135 21,850 0 0.0001
2026-03-30 2022-12-31 13F/A-1 QUANTUM SI COM 74765K105 54,285 18,954 53.65 99 1.02 0.0000
2023-02-13 2022-12-31 13F QUANTUM SI COM 74765K105 54,285 18,954 0 0.0000
2022-11-03 2022-09-30 13F QUANTUM SI COM 74765K105 35,331 -711 -1.97 98 16.67 0.0001
2022-08-12 2022-06-30 13F QUANTUM SI COM 74765K105 36,042 4,204 13.20 84 -43.62 0.0001
2022-05-16 2022-03-31 13F QUANTUM SI COM 74765K105 31,838 31,838 149 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.