TransDigm Group Incorporated
MX ˙ BMV ˙ US8936411003
SecurityMX:TDG / TransDigm Group Incorporated
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership161,577 shares
Latest Disclosed Value $ 187,226,143
Dimensional Fund Advisors Lp reports 4.28% increase in ownership of TDG / TransDigm Group Incorporated

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 161,577 shares of TransDigm Group Incorporated (MX:TDG) valued at $187,226,143 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 154,950 shares of TransDigm Group Incorporated. This represents a change in shares of 4.28% during the quarter.

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)
2026-05-07 2026-03-31 13F TRANSDIGM GROUP COM 893641100 161,577 6,627 4.28 187,226 -9.13 0.0389
2026-02-12 2025-12-31 13F TRANSDIGM GROUP COM 893641100 154,950 3,476 2.29 206,037 3.23 0.0432
2025-11-12 2025-09-30 13F TRANSDIGM GROUP COM 893641100 151,474 11,588 8.28 199,597 -6.16 0.0428
2025-08-12 2025-06-30 13F TRANSDIGM GROUP COM 893641100 139,886 -2,958 -2.07 212,689 7.65 0.0492
2025-05-13 2025-03-31 13F TRANSDIGM GROUP COM 893641100 142,844 -1,025 -0.71 197,568 8.35 0.0491
2025-02-13 2024-12-31 13F TRANSDIGM GROUP COM 893641100 143,869 4,141 2.96 182,344 -8.54 0.0438
2024-11-07 2024-09-30 13F TRANSDIGM GROUP COM 893641100 139,728 -575 -0.41 199,381 11.22 0.0484
2024-08-09 2024-06-30 13F TRANSDIGM GROUP COM 893641100 140,303 13,746 10.86 179,271 15.01 0.0468
2024-05-10 2024-03-31 13F TRANSDIGM GROUP COM 893641100 126,557 -9,826 -7.20 155,868 12.97 0.0422
2024-02-07 2023-12-31 13F TRANSDIGM GROUP COM 893641100 136,383 -2,763 -1.99 137,968 17.59 0.0403
2023-11-09 2023-09-30 13F TRANSDIGM GROUP COM 893641100 139,146 -10,032 -6.72 117,328 -12.04 0.0385
2023-08-09 2023-06-30 13F TRANSDIGM GROUP COM 893641100 149,178 -5,396 -3.49 133,387 17.08 0.0425
2023-05-12 2023-03-31 13F TRANSDIGM GROUP COM 893641100 154,574 -8,518 -5.22 113,928 111,593.14 0.0384
2023-02-09 2022-12-31 13F TRANSDIGM GROUP COM 893641100 163,092 962 0.59 103 -99.88 0.0303
2022-11-10 2022-09-30 13F TRANSDIGM GROUP COM 893641100 162,130 1,910 1.19 85,098 -1.01 0.0327
2022-08-12 2022-06-30 13F TRANSDIGM GROUP COM 893641100 160,220 957 0.60 85,968 -17.17 0.0308
2022-05-13 2022-03-31 13F TRANSDIGM GROUP COM 893641100 159,263 1,132 0.72 103,790 3.16 0.0320
2022-02-09 2021-12-31 13F TRANSDIGM GROUP COM 893641100 158,131 -1,416 -0.89 100,611 0.95 0.0304
2021-11-12 2021-09-30 13F TRANSDIGM GROUP COM 893641100 159,547 -1,320 -0.82 99,662 -4.28 0.0321
2021-08-12 2021-06-30 13F TRANSDIGM GROUP COM 893641100 160,867 381 0.24 104,123 10.36 0.0330
2021-05-14 2021-03-31 13F TRANSDIGM GROUP COM 893641100 160,486 417 0.26 94,350 -4.75 0.0312
2021-03-08 2020-12-31 13F/A-2 TRANSDIGM GROUP COM 893641100 160,069 2,812 1.79 99,057 32.55 0.0358
2021-02-11 2020-12-31 13F TRANSDIGM GROUP COM 893641100 160,069 2,812 99,057 35,774.1232
2020-11-12 2020-09-30 13F TRANSDIGM GROUP COM 893641100 157,257 3,366 2.19 74,731 9.85 0.0317
2020-08-13 2020-06-30 13F TRANSDIGM GROUP COM 893641100 153,891 1,826 1.20 68,028 39.63 0.0299
2020-05-14 2020-03-31 13F TRANSDIGM GROUP COM 893641100 152,065 -10,502 -6.46 48,719 -46.49 0.0254
2020-02-14 2019-12-31 13F TRANSDIGM GROUP COM 893641100 162,567 -5,295 -3.15 91,040 4.17 0.0332
2019-11-12 2019-09-30 13F TRANSDIGM GROUP COM 893641100 167,862 11,005 7.02 87,399 15.18 0.0340
2019-08-13 2019-06-30 13F TRANSDIGM GROUP COM 893641100 156,857 6,559 4.36 75,879 11.21 0.0295
2019-08-12 2019-03-31 13F/A-2 TRANSDIGM GROUP COM 893641100 150,298 2,715 1.84 68,229 35.96 0.0272
2019-05-10 2019-03-31 13F TRANSDIGM GROUP COM 893641100 150,298 2,715 68,229
2019-02-26 2018-12-31 13F/A-1 TRANSDIGM GROUP COM 893641100 147,583 6,694 4.75 50,183 -4.33 0.0227
2019-02-13 2018-12-31 13F TRANSDIGM GROUP COM 893641100 147,583 6,694 50,183
2018-11-13 2018-09-30 13F TRANSDIGM GROUP COM 893641100 140,889 5,519 4.08 52,453 12.29 0.0200
2018-08-10 2018-06-30 13F TRANSDIGM GROUP COM 893641100 135,370 1,437 1.07 46,711 13.63 0.0186
2018-05-11 2018-03-31 13F TRANSDIGM GROUP COM 893641100 133,933 923 0.69 41,109 12.53 0.0171
2018-02-12 2017-12-31 13F TRANSDIGM GROUP COM 893641100 133,010 1,580 1.20 36,530 8.73 0.0151
2017-11-13 2017-09-30 13F TRANSDIGM GROUP COM 893641100 131,430 -149 -0.11 33,597 -5.02 0.0147
2017-08-11 2017-06-30 13F TRANSDIGM GROUP COM 893641100 131,579 2,133 1.65 35,373 24.12 0.0163
2017-05-12 2017-03-31 13F TRANSDIGM GROUP COM 893641100 129,446 1,113 0.87 28,498 -10.81 0.0136
2017-02-09 2016-12-31 13F TRANSDIGM GROUP COM 893641100 128,333 -270 -0.21 31,952 -14.06 0.0160
2016-11-10 2016-09-30 13F TRANSDIGM GROUP COM 893641100 128,603 2,337 1.85 37,179 11.68 0.0201
2016-08-09 2016-06-30 13F TRANSDIGM GROUP COM 893641100 126,266 18,128 16.76 33,292 39.72 0.0192
2016-05-13 2016-03-31 13F TRANSDIGM GROUP COM 893641100 108,138 3,902 3.74 23,828 0.07 0.0143
2016-02-10 2015-12-31 13F TRANSDIGM GROUP COM 893641100 104,236 3,180 3.15 23,812 10.92 0.0148
2015-11-13 2015-09-30 13F TRANSDIGM GROUP COM 893641100 101,056 -3,108 -2.98 21,468 -8.27 0.0141
2015-08-14 2015-06-30 13F TRANSDIGM GROUP COM 893641100 104,164 6,122 6.24 23,404 9.14 0.0143
2015-05-14 2015-03-31 13F TRANSDIGM GROUP COM 893641100 98,042 660 0.68 21,444 12.14 0.0135
2015-02-06 2014-12-31 13F TRANSDIGM GROUP COM 893641100 97,382 2,894 3.06 19,122 9.78 0.0126
2014-11-13 2014-09-30 13F TRANSDIGM GROUP COM 893641100 94,488 480 0.51 17,418 10.77 0.0123
2014-08-08 2014-06-30 13F TRANSDIGM GROUP COM 893641100 94,008 14,325 17.98 15,724 6.55 0.0109
2014-05-14 2014-03-31 13F TRANSDIGM GROUP COM 893641100 79,683 2,906 3.78 14,757 19.37 0.0110
2014-02-12 2013-12-31 13F TRANSDIGM GROUP COM 893641100 76,777 -6,217 -7.49 12,362 7.39 0.0096
2013-11-13 2013-09-30 13F TRANSDIGM GROUP COM 893641100 82,994 -1,818 -2.14 11,511 -13.43 0.0100
2013-08-15 2013-06-30 13F TRANSDIGM GROUP COM 893641100 84,812 84,812 13,297 0.0125
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.