TRANSDIGM GROUP INC · CUSIP 893641100 · CIK 1177719
As of 2026-03-31, WESTFIELD CAPITAL MANAGEMENT CO LP reported 12.95K TDG (shares), valued at $15.01M, or 0.06% of its reported non-derivative portfolio. Filed 2026-05-11.
Verify history & sources →Shares decreased 20.03%; reported value decreased 30.30%, and weight changed -0.03 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 | Not reported | Not reported | — |
| Q1 2026 | 0.06% | 12,950 | SEC filing ↗Filed May 11, 2026 |
| Q4 2025 | 0.09% | 16,193 | SEC filing ↗Filed Feb 11, 2026 |
| Q3 2025 | 1.21% | 217,897 | SEC filing ↗Filed Nov 12, 2025 |
| Q2 2025 | 1.85% | 290,013 | SEC filing ↗Filed Aug 12, 2025 |
| Q1 2025 | 2.13% | 316,162 | SEC filing ↗Filed May 9, 2025 |
| Q4 2024 | 2.00% | 362,218 | SEC filing ↗Filed Feb 11, 2025 |
| Q3 2024 | 2.40% | 372,061 | SEC filing ↗Filed Nov 12, 2024 |
| Q2 2024 | 2.28% | 363,406 | SEC filing ↗Filed Aug 14, 2024 |
| Q1 2024 | 2.04% | 315,374 | SEC filing ↗Filed May 10, 2024 |
| Q4 2023 | 1.89% | 320,175 | SEC filing ↗Filed Feb 9, 2024 |
| Q3 2023 | 1.86% | 323,938 | SEC filing ↗Filed Nov 13, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 1.86% | 323,938 | $273.12M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 13, 2023 |
| Q4 2023 | 1.89% | 320,175 | $323.89M | Shares decreased 1.16%; reported value increased 18.59%, and weight changed +0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 9, 2024 |
| Q1 2024 | 2.04% | 315,374 | $388.42M | Shares decreased 1.50%; reported value increased 19.92%, and weight changed +0.15 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 10, 2024 |
| Q2 2024 | 2.28% | 363,406 | $464.29M | Shares increased 15.23%; reported value increased 19.53%, and weight changed +0.24 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2024 |
| Q3 2024 | 2.40% | 372,061 | $530.98M | Shares increased 2.38%; reported value increased 14.36%, and weight changed +0.12 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 12, 2024 |
| Q4 2024 | 2.00% | 362,218 | $459.03M | Shares decreased 2.65%; reported value decreased 13.55%, and weight changed -0.40 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 11, 2025 |
| Q1 2025 | 2.13% | 316,162 | $437.34M | Shares decreased 12.71%; reported value decreased 4.72%, and weight changed +0.13 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 9, 2025 |
| Q2 2025 | 1.85% | 290,013 | $441.01M | Shares decreased 8.27%; reported value increased 0.84%, and weight changed -0.28 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 12, 2025 |
| Q3 2025 | 1.21% | 217,897 | $287.19M | Shares decreased 24.87%; reported value decreased 34.88%, and weight changed -0.64 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 12, 2025 |
| Q4 2025 | 0.09% | 16,193 | $21.53M | Shares decreased 92.57%; reported value decreased 92.50%, and weight changed -1.12 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 11, 2026 |
| Q1 2026 | 0.06% | 12,950 | $15.01M | Shares decreased 20.03%; reported value decreased 30.30%, and weight changed -0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 11, 2026 |
| Q2 2026 | Not reported | — | — | This security is absent from this quarter's filing; a missing record is not treated as zero holdings. | — |
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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.