TRANSDIGM GROUP INC · CUSIP 893641100 · CIK 1853635
As of 2026-06-30, Ampfield Management, L.P. reported 21.47K TDG (shares), valued at $28.60M, or 28.54% of its reported non-derivative portfolio. Filed 2026-07-30.
Verify history & sources →Shares decreased 12.22%; reported value increased 0.89%, and weight changed -6.55 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 | 28.54% | 21,473 | SEC filing ↗Filed Jul 30, 2026 |
| Q1 2026 | 35.09% | 24,463 | SEC filing ↗Filed Apr 22, 2026 |
| Q4 2025 | 65.80% | 32,990 | SEC filing ↗Filed Feb 13, 2026 |
| Q3 2025 | 48.46% | 32,990 | SEC filing ↗Filed Oct 28, 2025 |
| Q2 2025 | 53.43% | 33,305 | SEC filing ↗Filed Jul 22, 2025 |
| Q1 2025 | 55.31% | 33,965 | SEC filing ↗Filed May 2, 2025 |
| Q4 2024 | 54.80% | 41,542 | SEC filing ↗Filed Feb 3, 2025 |
| Q3 2024 | 63.60% | 42,750 | SEC filing ↗Filed Oct 30, 2024 |
| Q2 2024 | 50.33% | 42,750 | SEC filing ↗Filed Jul 22, 2024 |
| Q1 2024 | 36.84% | 43,229 | SEC filing ↗Filed Apr 16, 2024 |
| Q4 2023 | 28.54% | 43,229 | SEC filing ↗Filed Jan 30, 2024 |
| Q3 2023 | 32.61% | 43,229 | SEC filing ↗Filed Oct 18, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 32.61% | 43,229 | $36.45M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Oct 18, 2023 |
| Q4 2023 | 28.54% | 43,229 | $43.73M | Shares unchanged; reported value increased 19.98%, and weight changed -4.07 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jan 30, 2024 |
| Q1 2024 | 36.84% | 43,229 | $53.24M | Shares unchanged; reported value increased 21.75%, and weight changed +8.30 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Apr 16, 2024 |
| Q2 2024 | 50.33% | 42,750 | $54.62M | Shares decreased 1.11%; reported value increased 2.59%, and weight changed +13.49 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 22, 2024 |
| Q3 2024 | 63.60% | 42,750 | $61.01M | Shares unchanged; reported value increased 11.70%, and weight changed +13.27 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Oct 30, 2024 |
| Q4 2024 | 54.80% | 41,542 | $52.65M | Shares decreased 2.83%; reported value decreased 13.71%, and weight changed -8.80 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 3, 2025 |
| Q1 2025 | 55.31% | 33,965 | $46.98M | Shares decreased 18.24%; reported value decreased 10.76%, and weight changed +0.51 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 2, 2025 |
| Q2 2025 | 53.43% | 33,305 | $50.65M | Shares decreased 1.94%; reported value increased 7.79%, and weight changed -1.88 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 22, 2025 |
| Q3 2025 | 48.46% | 32,990 | $43.48M | Shares decreased 0.95%; reported value decreased 14.15%, and weight changed -4.97 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Oct 28, 2025 |
| Q4 2025 | 65.80% | 32,990 | $43.87M | Shares unchanged; reported value increased 0.90%, and weight changed +17.34 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 13, 2026 |
| Q1 2026 | 35.09% | 24,463 | $28.35M | Shares decreased 25.85%; reported value decreased 35.38%, and weight changed -30.71 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Apr 22, 2026 |
| Q2 2026 | 28.54% | 21,473 | $28.60M | Shares decreased 12.22%; reported value increased 0.89%, and weight changed -6.55 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jul 30, 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.