MICROSOFT CORP · CUSIP 594918104 · CIK 1177719
As of 2026-06-30, WESTFIELD CAPITAL MANAGEMENT CO LP reported 1.41M MSFT (shares), valued at $527.56M, or 1.72% of its reported non-derivative portfolio. Filed 2026-08-12.
Verify history & sources →Shares decreased 14.26%; reported value decreased 13.60%, and weight changed -0.84 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.
Left: % · Right: Shares · Independently scaled axes
Exact data and methodology
Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.
| Quarter | Weight | Quantity | Source |
|---|---|---|---|
| Q2 2026 | 1.72% | 1,414,294 | SEC filing ↗Filed Aug 12, 2026 |
| Q1 2026 | 2.56% | 1,649,513 | SEC filing ↗Filed May 11, 2026 |
| Q4 2025 | 3.27% | 1,621,219 | SEC filing ↗Filed Feb 11, 2026 |
| Q3 2025 | 3.71% | 1,705,236 | SEC filing ↗Filed Nov 12, 2025 |
| Q2 2025 | 3.67% | 1,757,424 | SEC filing ↗Filed Aug 12, 2025 |
| Q1 2025 | 3.35% | 1,832,611 | SEC filing ↗Filed May 9, 2025 |
| Q4 2024 | 3.44% | 1,872,811 | SEC filing ↗Filed Feb 11, 2025 |
| Q3 2024 | 3.72% | 1,914,391 | SEC filing ↗Filed Nov 12, 2024 |
| Q2 2024 | 4.06% | 1,846,637 | SEC filing ↗Filed Aug 14, 2024 |
| Q1 2024 | 3.36% | 1,522,930 | SEC filing ↗Filed May 10, 2024 |
| Q4 2023 | 3.41% | 1,557,889 | SEC filing ↗Filed Feb 9, 2024 |
| Q3 2023 | 2.89% | 1,342,536 | SEC filing ↗Filed Nov 13, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 2.89% | 1,342,536 | $423.91M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 13, 2023 |
| Q4 2023 | 3.41% | 1,557,889 | $585.83M | Shares increased 16.04%; reported value increased 38.20%, and weight changed +0.52 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 9, 2024 |
| Q1 2024 | 3.36% | 1,522,930 | $640.73M | Shares decreased 2.24%; reported value increased 9.37%, and weight changed -0.05 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 10, 2024 |
| Q2 2024 | 4.06% | 1,846,637 | $825.35M | Shares increased 21.26%; reported value increased 28.82%, and weight changed +0.70 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2024 |
| Q3 2024 | 3.72% | 1,914,391 | $823.76M | Shares increased 3.67%; reported value decreased 0.19%, and weight changed -0.34 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 12, 2024 |
| Q4 2024 | 3.44% | 1,872,811 | $789.39M | Shares decreased 2.17%; reported value decreased 4.17%, and weight changed -0.28 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 11, 2025 |
| Q1 2025 | 3.35% | 1,832,611 | $687.94M | Shares decreased 2.15%; reported value decreased 12.85%, and weight changed -0.09 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 9, 2025 |
| Q2 2025 | 3.67% | 1,757,424 | $874.16M | Shares decreased 4.10%; reported value increased 27.07%, and weight changed +0.32 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 12, 2025 |
| Q3 2025 | 3.71% | 1,705,236 | $883.23M | Shares decreased 2.97%; reported value increased 1.04%, and weight changed +0.04 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 12, 2025 |
| Q4 2025 | 3.27% | 1,621,219 | $784.05M | Shares decreased 4.93%; reported value decreased 11.23%, and weight changed -0.44 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 11, 2026 |
| Q1 2026 | 2.56% | 1,649,513 | $610.60M | Shares increased 1.75%; reported value decreased 22.12%, and weight changed -0.71 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 11, 2026 |
| Q2 2026 | 1.72% | 1,414,294 | $527.56M | Shares decreased 14.26%; reported value decreased 13.60%, and weight changed -0.84 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 12, 2026 |
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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.