TransDigm Group Incorporated
MX ˙ BMV ˙ US8936411003
SecurityMX:TDG / TransDigm Group Incorporated
InstitutionNational Pension Service
Latest Disclosed Ownership130,309 shares
Latest Disclosed Value $ 151,022,919
National Pension Service reports 1.79% decrease in ownership of TDG / TransDigm Group Incorporated

On May 12, 2026 - National Pension Service filed a 13F-HR form disclosing ownership of 130,309 shares of TransDigm Group Incorporated (MX:TDG) valued at $151,022,919 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 132,680 shares of TransDigm Group Incorporated. This represents a change in shares of -1.79% 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)
2026-05-12 2026-03-31 13F TRANSDIGM GROUP COM 893641100 130,309 -2,371 -1.79 151,023 -14.41 0.1147
2026-02-10 2025-12-31 13F TRANSDIGM GROUP TRANSDIGM GROUP INC 893641100 132,680 -30,175 -18.53 176,444 -17.80 0.1306
2025-11-04 2025-09-30 13F TRANSDIGM GROUP COM 893641100 162,855 2,356 1.47 214,646 -12.05 0.1667
2025-08-08 2025-06-30 13F TRANSDIGM GROUP COM 893641100 160,499 33,386 26.26 244,061 38.80 0.2107
2025-05-13 2025-03-31 13F TRANSDIGM GROUP COM 893641100 127,113 10,603 9.10 175,834 19.09 0.1690
2025-02-05 2024-12-31 13F TRANSDIGM GROUP COM 893641100 116,510 -24,193 -17.19 147,651 -22.37 0.1397
2024-10-30 2024-09-30 13F TRANSDIGMGROUPINC COM 893641100 140,703 16,656 13.43 190,189 20.01 0.1834
2024-08-13 2024-06-30 13F TRANSDIGM GROUP COM 893641100 124,047 642 0.52 158,484 4.28 0.1821
2024-05-14 2024-03-31 13F TRANSDIGM GROUP COM 893641100 123,405 -58 -0.05 151,986 21.69 0.1824
2024-02-07 2023-12-31 13F TRANSDIGM GROUP COM 893641100 123,463 3,699 3.09 124,895 23.75 0.1739
2023-11-15 2023-09-30 13F TRANSDIGM GROUP COM 893641100 119,764 4,013 3.47 100,923 -1.61 0.1615
2023-08-16 2023-06-30 13F TRANSDIGM GROUP COM 893641100 115,751 27,325 30.90 102,569 57.84 0.1654
2023-05-12 2023-03-31 13F TRANSDIGM GROUP COM 893641100 88,426 983 1.12 64,982 18.02 0.1183
2023-02-24 2022-12-31 13F/A-1 TRANSDIGM GROUP COM 893641100 87,443 2,516 2.96 55,058 22.23 0.1083
2023-02-21 2022-12-31 13F TRANSDIGM GROUP COM 893641100 87,443 2,516 55 0.1083
2023-02-24 2022-09-30 13F/A-1 TRANSDIGM GROUP COM 893641100 84,927 227 0.27 45,045 -0.90 0.0940
2022-11-18 2022-09-30 13F TRANSDIGM GROUP COM 893641100 84,927 227 45,045 0.0940
2022-08-17 2022-06-30 13F TRANSDIGM GROUP COM 893641100 84,700 6,139 7.81 45,456 -11.19 0.0937
2022-05-13 2022-03-31 13F TRANSDIGM GROUP COM 893641100 78,561 2,645 3.48 51,186 5.97 0.0934
2022-02-15 2021-12-31 13F TRANSDIGM GROUP COM 893641100 75,916 -2,062 -2.64 48,304 -0.82 0.0843
2021-11-18 2021-09-30 13F TRANSDIGM GROUP COM 893641100 77,978 -194 -0.25 48,703 -3.75 0.0927
2021-08-17 2021-06-30 13F TRANSDIGM GROUP COM 893641100 78,172 421 0.54 50,600 10.70 0.0961
2021-05-14 2021-03-31 13F TRANSDIGM GROUP COM 893641100 77,751 2,809 3.75 45,711 -1.44 0.0956
2021-02-19 2020-12-31 13F TRANSDIGM GROUP COM 893641100 74,942 1,064 1.44 46,378 25.90 0.1057
2020-11-13 2020-09-30 13F TRANSDIGM GROUP COM 893641100 73,878 0 0.00 36,836 12.79 0.0968
2020-08-11 2020-06-30 13F TRANSDIGM GROUP COM 893641100 73,878 4,241 6.09 32,658 46.47 0.0933
2020-05-27 2020-03-31 13F TRANSDIGM GROUP COM 893641100 69,637 783 1.14 22,297 -42.17 0.0755
2020-02-21 2019-12-31 13F TRANSDIGM GROUP COM 893641100 68,854 -5,808 -7.78 38,558 -0.81 0.1058
2019-11-15 2019-09-30 13F TRANSDIGM GROUP COM 893641100 74,662 3,368 4.72 38,874 12.70 0.1230
2019-08-14 2019-06-30 13F TRANSDIGM GROUP COM 893641100 71,294 13,101 22.51 34,492 30.56 0.1153
2019-05-15 2019-03-31 13F TRANSDIGM GROUP COM 893641100 58,193 2,368 4.24 26,419 10.12 0.1016
2019-02-15 2018-12-31 13F TRANSDIGM GROUP COM 893641100 55,825 2,983 5.65 23,992 21.95 0.0990
2018-11-15 2018-09-30 13F TRANSDIGM GROUP COM 893641100 52,842 -202 -0.38 19,673 10.11 0.0801
2018-08-14 2018-06-30 13F TRANSDIGM GROUP COM 893641100 53,044 -4,566 -7.93 17,866 1.03 0.0808
2018-04-13 2018-03-31 13F TRANSDIGM GROUP COM 893641100 57,610 -679 -1.16 17,683 10.47 0.0877
2018-01-17 2017-12-31 13F TRANSDIGM GROUP COM 893641100 58,289 -362 -0.62 16,007 7.64 0.0799
2017-10-16 2017-09-30 13F TRANSDIGM GROUP COM 893641100 58,651 2,291 4.06 14,871 -0.44 0.0818
2017-07-13 2017-06-30 13F TRANSDIGM GROUP COM 893641100 56,360 5,192 10.15 14,936 32.67 0.0890
2017-04-11 2017-03-31 13F TRANSDIGM GROUP COM 893641100 51,168 4,550 9.76 11,258 -3.00 0.0754
2017-01-18 2016-12-31 13F TRANSDIGM GROUP COM 893641100 46,618 3,022 6.93 11,606 -7.92 0.0794
2016-10-14 2016-09-30 13F TRANSDIGM GROUP COM 893641100 43,596 3,715 9.32 12,604 19.86 0.1010
2016-08-11 2016-06-30 13F TRANSDIGM GROUP COM 893641100 39,881 4,695 13.34 10,516 35.64 0.0934
2016-05-16 2016-03-31 13F TRANSDIGM GROUP COM 893641100 35,186 1,495 4.44 7,753 0.73 0.0777
2016-02-12 2015-12-31 13F TRANSDIGM GROUP COM 893641100 33,691 2,233 7.10 7,697 15.19 0.0808
2015-10-15 2015-09-30 13F TRANSDIGM GROUP COM 893641100 31,458 3,694 13.30 6,682 7.13 0.0845
2015-07-15 2015-06-30 13F TRANSDIGM GROUP COM 893641100 27,764 4,299 18.32 6,237 21.53 0.0809
2015-04-15 2015-03-31 13F TRANSDIGM GROUP COM 893641100 23,465 3,454 17.26 5,132 30.62 0.0742
2015-01-13 2014-12-31 13F TRANSDIGM GROUP COM 893641100 20,011 -2,542 -11.27 3,929 -5.48 0.0663
2014-11-07 2014-09-30 13F TRANSDIGM GROUP COM 893641100 22,553 22,553 4,157 0.0660
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.