TransDigm Group Incorporated
MX ˙ BMV ˙ US8936411003
SecurityMX:TDG / TransDigm Group Incorporated
InstitutionHaverford Trust Co
Latest Disclosed Ownership1,180 shares
Latest Disclosed Value $ 1,367,573
Haverford Trust Co reports 5.08% increase in ownership of TDG / TransDigm Group Incorporated

On May 11, 2026 - Haverford Trust Co filed a 13F-HR form disclosing ownership of 1,180 shares of TransDigm Group Incorporated (MX:TDG) valued at $1,367,573 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,123 shares of TransDigm Group Incorporated. This represents a change in shares of 5.08% 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)
2026-05-11 2026-03-31 13F TRANSDIGM GROUP COM 893641100 1,180 57 5.08 1,368 -8.44 0.0125
2026-02-13 2025-12-31 13F TRANSDIGM GROUP COM 893641100 1,123 3 0.27 1,493 1.15 0.0133
2025-11-14 2025-09-30 13F TRANSDIGM GROUP COM 893641100 1,120 -3 -0.27 1,476 -13.53 0.0133
2025-08-13 2025-06-30 13F TRANSDIGM GROUP COM 893641100 1,123 0 0.00 1,708 9.92 0.0162
2025-05-14 2025-03-31 13F TRANSDIGM GROUP COM 893641100 1,123 0 0.00 1,553 9.14 0.0156
2025-02-11 2024-12-31 13F TRANSDIGM GROUP COM 893641100 1,123 -6 -0.53 1,423 -11.67 0.0141
2024-11-05 2024-09-30 13F TRANSDIGM GROUP COM 893641100 1,129 51 4.73 1,611 16.99 0.0157
2024-08-13 2024-06-30 13F TRANSDIGM GROUP COM 893641100 1,078 -45 -4.01 1,377 -0.43 0.0145
2024-05-02 2024-03-31 13F TRANSDIGM GROUP COM 893641100 1,123 0 0.00 1,383 21.74 0.0145
2024-02-08 2023-12-31 13F TRANSDIGM GROUP COM 893641100 1,123 -23 -2.01 1,136 17.60 0.0126
2023-11-09 2023-09-30 13F TRANSDIGM GROUP COM 893641100 1,146 16 1.42 966 -4.36 0.0118
2023-08-08 2023-06-30 13F TRANSDIGM GROUP COM 893641100 1,130 20 1.80 1,010 23.47 0.0114
2023-05-12 2023-03-31 13F TRANSDIGM GROUP COM 893641100 1,110 110 11.00 818 30.05 0.0098
2023-02-13 2022-12-31 13F TRANSDIGM GROUP COM 893641100 1,000 0 0.00 630 19.81 0.0078
2022-11-14 2022-09-30 13F TRANSDIGM GROUP COM 893641100 1,000 0 0.00 525 -2.23 0.0072
2022-08-12 2022-06-30 13F TRANSDIGM GROUP COM 893641100 1,000 0 0.00 537 -17.64 0.0070
2022-05-05 2022-03-31 13F TRANSDIGM GROUP COM 893641100 1,000 -200 -16.67 652 -14.66 0.0075
2022-02-14 2021-12-31 13F TRANSDIGM GROUP COM 893641100 1,200 0 0.00 764 2.00 0.0083
2021-11-12 2021-09-30 13F TRANSDIGM GROUP COM 893641100 1,200 0 0.00 749 -3.60 0.0090
2021-08-16 2021-06-30 13F/A-1 TRANSDIGM GROUP COM 893641100 1,200 0 0.00 777 10.06 0.0091
2021-08-16 2021-06-30 13F TRANSDIGM GROUP COM 893641100 777 -423 777 0.0091
2021-05-12 2021-03-31 13F TRANSDIGM GROUP COM 893641100 1,200 -118 -8.95 706 -13.48 0.0090
2021-02-05 2020-12-31 13F TRANSDIGM GROUP COM 893641100 1,318 18 1.38 816 32.04 0.0115
2020-11-10 2020-09-30 13F TRANSDIGM GROUP COM 893641100 1,300 0 0.00 618 7.48 0.0099
2020-08-13 2020-06-30 13F TRANSDIGM GROUP COM 893641100 1,300 0 0.00 575 38.22 0.0099
2020-05-11 2020-03-31 13F TRANSDIGM GROUP COM 893641100 1,300 0 0.00 416 -42.86 0.0084
2020-02-10 2019-12-31 13F TRANSDIGM GROUP COM 893641100 1,300 0 0.00 728 7.53 0.0118
2019-11-04 2019-09-30 13F TRANSDIGM GROUP COM 893641100 1,300 0 0.00 677 7.63 0.0119
2019-08-13 2019-06-30 13F TRANSDIGM GROUP COM 893641100 1,300 0 0.00 629 6.61 0.0113
2019-05-09 2019-03-31 13F TRANSDIGM GROUP COM 893641100 1,300 -200 -13.33 590 15.69 0.0110
2019-02-12 2018-12-31 13F TRANSDIGM GROUP COM 893641100 1,500 0 0.00 510 -8.60 0.0109
2018-11-08 2018-09-30 13F TRANSDIGM GROUP COM 893641100 1,500 0 0.00 558 7.72 0.0103
2018-08-10 2018-06-30 13F TRANSDIGM GROUP COM 893641100 1,500 -17 -1.12 518 11.16 0.0102
2018-05-09 2018-03-31 13F TRANSDIGM GROUP COM 893641100 1,517 -483 -24.15 466 -15.12 0.0093
2018-02-13 2017-12-31 13F TRANSDIGM GROUP COM 893641100 2,000 0 0.00 549 7.44 0.0108
2017-11-09 2017-09-30 13F TRANSDIGM GROUP COM 893641100 2,000 0 0.00 511 -5.02 0.0107
2017-08-14 2017-06-30 13F TRANSDIGM GROUP COM 893641100 2,000 -300 -13.04 538 6.32 0.0117
2017-05-05 2017-03-31 13F TRANSDIGM GROUP COM 893641100 2,300 0 0.00 506 -11.69 0.0116
2017-02-10 2016-12-31 13F TRANSDIGM GROUP COM 893641100 2,300 0 0.00 573 -13.83 0.0139
2016-11-14 2016-09-30 13F TRANSDIGM GROUP COM 893641100 2,300 0 0.00 665 9.74 0.0166
2016-08-04 2016-06-30 13F TRANSDIGM GROUP COM 893641100 2,300 0 0.00 606 19.53 0.0152
2016-05-10 2016-03-31 13F TRANSDIGM GROUP COM 893641100 2,300 0 0.00 507 -3.43 0.0132
2016-02-09 2015-12-31 13F TRANSDIGM GROUP COM 893641100 2,300 0 0.00 525 7.36 0.0141
2015-11-10 2015-09-30 13F TRANSDIGM GROUP COM 893641100 2,300 -200 -8.00 489 -12.99 0.0142
2015-07-30 2015-06-30 13F TRANSDIGM GROUP COM 893641100 2,500 0 0.00 562 2.74 0.0154
2015-05-05 2015-03-31 13F/A-1 TRANSDIGM GROUP COM 893641100 2,500 0 0.00 547 11.41 0.0151
2015-05-04 2015-03-31 13F TRANSDIGM GROUP COM 893641100 45,649 547
2015-02-09 2014-12-31 13F TRANSDIGM GROUP COM 893641100 2,500 0 0.00 491 6.51 0.0138
2014-11-05 2014-09-30 13F TRANSDIGM GROUP COM 893641100 2,500 0 0.00 461 10.29 0.0138
2014-08-01 2014-06-30 13F TRANSDIGM GROUP COM 893641100 2,500 0 0.00 418 -9.72 0.0123
2014-05-08 2014-03-31 13F TRANSDIGM GROUP COM 893641100 2,500 -300 -10.71 463 2.66 0.0143
2014-01-31 2013-12-31 13F TRANSDIGM GROUP Common Stocks 893641100 2,800 0 0.00 451 16.24 0.0127
2013-11-01 2013-09-30 13F TRANSDIGM GROUP Common Stocks 893641100 2,800 2,800 388 0.0141
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.