Insider Trading activities at Transdigm Group Inc (TDG)

Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Transdigm Group Inc (TDG) since 2014 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Transdigm Group Inc. Table 2 shows the detailed insider transactions. This company's CIK number is 1260221.

Total stock buying since 2014: $1,034,236,946.
Total stock sales since 2014: $3,535,083,472.
Total stock option exercises since 2014: $449,426,496.


29 insiders reported insider trading activities at Transdigm Group Inc (TDG):
Insider trading activities of Hennessy Sean P
Insider trading activities of Skulina James
Insider trading activities of Dunn Mervin
Insider trading activities of Jones Roger
Insider trading activities of Santana Michele
Insider trading activities of Peacock Douglas W
Insider trading activities of Leary John F
Insider trading activities of Henderson Robert S
Insider trading activities of Cronin Jane M.
Insider trading activities of Graff Michael
Insider trading activities of Small Robert J
Insider trading activities of Paradie Terrance M
Insider trading activities of Warren Jessica L
Insider trading activities of Feil Alex
Insider trading activities of Tenerowicz John
Insider trading activities of Dries William
Insider trading activities of Howley W Nicholas
Insider trading activities of Staer John
Insider trading activities of Terrion Halle Fine
Insider trading activities of Lisman Michael
Insider trading activities of Wynne Sarah
Insider trading activities of Iversen Bernt G Ii
Insider trading activities of Laubenthal Raymond F
Insider trading activities of Rufus Gregory
Insider trading activities of Reiss Joel
Insider trading activities of Stein Kevin M
Insider trading activities of Valladares Jorge
Insider trading activities of Maroney Sean P
Insider trading activities of Palmer Peter

Table 1. Yearly summary of insider stock purchases, sales, and option exercises at Transdigm Group Inc (TDG).
Insider Buying Insider Sales Option Exercises
Year Shares Value Shares Value Shares Value
2025 0 $0 336,124 $463,557,722 200,390 $39,411,763
2024 0 $0 705,927 $840,532,506 354,098 $79,066,831
2023 36 $25,263 928,491 $758,434,047 341,169 $67,109,429
2022 47,865 $26,597,802 173,206 $106,935,012 168,206 $41,011,132
2021 1,170 $705,160 299,703 $187,925,616 274,700 $45,155,813
2020 1,553,926 $642,208,741 545,450 $303,873,160 617,498 $85,138,266
2019 230,473 $100,302,723 1,006,338 $487,351,676 332,242 $31,496,048
2018 1,347 $399,774 258,244 $83,673,783 277,444 $13,501,230
2017 111,389 $25,994,542 196,572 $52,200,613 215,326 $6,117,081
2016 1,088,998 $237,935,518 350,068 $90,925,395 380,158 $13,618,093
2015 300 $67,423 715,450 $159,673,942 788,710 $26,924,601
2014 0 $0 0 $0 5,500 $876,209

Table 2. Monthly summary of insider trading at Transdigm Group Inc (TDG).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2025-08 0 $0 7,496 $10,519,294 7,496 $1,515,854
2025-07 0 $0 5,736 $9,089,708 5,736 $1,240,467
2025-06 0 $0 56,436 $80,599,980 10,736 $4,039,367
2025-05 0 $0 67,431 $98,724,233 67,431 $11,694,129
2025-04 0 $0 28,772 $38,294,011 28,772 $5,435,636
2025-03 0 $0 113,309 $151,686,391 23,275 $4,750,842
2025-02 0 $0 28,472 $38,214,403 28,472 $5,367,734
2025-01 0 $0 28,472 $36,429,702 28,472 $5,367,734
2024-12 0 $0 66,525 $83,139,892 28,472 $5,367,734
2024-11 0 $0 8,472 $10,709,777 8,472 $1,450,134
2024-10 0 $0 8,472 $11,872,696 8,472 $1,450,134
2024-08 0 $0 18,472 $23,007,738 18,472 $4,569,334
2024-07 0 $0 18,073 $22,503,055 18,871 $7,670,098
2024-06 0 $0 83,107 $109,385,509 19,922 $5,073,093
2024-05 0 $0 13,196 $17,080,172 13,000 $3,387,820
2024-04 0 $0 13,000 $15,867,493 13,000 $3,387,820
2024-03 0 $0 25,243 $29,621,003 25,243 $6,158,899
2024-02 0 $0 391,887 $456,873,717 140,694 $30,110,743
2024-01 0 $0 59,480 $60,471,454 59,480 $10,441,022
2023-12 0 $0 65,295 $65,472,082 46,770 $10,336,185
2023-11 0 $0 155,519 $151,121,823 26,060 $5,767,809
2023-10 0 $0 3,000 $2,587,323 3,000 $679,020
2023-09 0 $0 32,442 $28,616,658 8,420 $1,881,230
2023-08 0 $0 55,077 $49,190,932 55,077 $10,622,116

Table 3. Detailed insider trading at Transdigm Group Inc (TDG)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2025-08-26 Graff Michael Sale 1,760 1,401.75 2,467,078
2025-08-26 Graff Michael Option Ex 1,760 156.47 275,387
2025-08-20 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,406.49 4,219,464
2025-08-20 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 284.97 854,910
2025-08-15 Howley W Nicholas Sale 2,736 1,400.86 3,832,752
2025-08-15 Howley W Nicholas Option Ex 2,736 140.92 385,557
2025-07-21 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,596.88 4,790,640
2025-07-21 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 284.97 854,910
2025-07-15 Howley W Nicholas Sale 2,736 1,571.30 4,299,068
2025-07-15 Howley W Nicholas Option Ex 2,736 140.92 385,557
2025-06-20 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,422.90 4,268,709
2025-06-20 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 284.97 854,910
2025-06-16 Howley W Nicholas Sale 2,736 1,443.87 3,950,436
2025-06-16 Howley W Nicholas Option Ex 2,736 140.92 385,557
2025-06-13 Wynne Sarah (Chief Financial Officer) Sale 1,800 1,450.00 2,610,000
2025-06-13 Wynne Sarah (Chief Financial Officer) Option Ex 1,800 559.78 1,007,604
2025-06-12 Wynne Sarah (Chief Financial Officer) Sale 3,200 1,452.46 4,647,878
2025-06-12 Wynne Sarah (Chief Financial Officer) Option Ex 3,200 559.78 1,791,296
2025-06-10 Small Robert J Sale 45,700 1,425.01 65,122,957
2025-05-20 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,433.03 4,299,081
2025-05-20 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 284.97 854,910
2025-05-20 Hennessy Sean P Sale 4,700 1,437.90 6,758,125
2025-05-20 Hennessy Sean P Option Ex 4,700 156.47 735,409
2025-05-14 Valladares Iii Jorge L. Sale 3,783 1,401.86 5,303,240
2025-05-14 Valladares Iii Jorge L. Option Ex 3,783 284.97 1,078,041
2025-05-13 Warren Jessica L (GC, CCO, Secretary) Sale 490 1,425.00 698,250
2025-05-13 Warren Jessica L (GC, CCO, Secretary) Option Ex 490 643.00 315,070
2025-05-13 Valladares Iii Jorge L. Sale 6,217 1,433.03 8,909,153
2025-05-13 Valladares Iii Jorge L. Option Ex 6,217 284.97 1,771,658
2025-05-05 Howley W Nicholas Sale 49,241 1,477.56 72,756,384
2025-05-05 Howley W Nicholas Option Ex 49,241 140.92 6,939,041
2025-04-21 Reiss Joel (Co-Chief Operating Officer) Sale 3,300 1,321.98 4,362,524
2025-04-21 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,300 226.34 746,922
2025-04-15 Howley W Nicholas Sale 5,472 1,343.96 7,354,127
2025-04-15 Howley W Nicholas Option Ex 5,472 140.92 771,114
2025-04-14 Stein Kevin M (President & CEO) Sale 20,000 1,328.87 26,577,360
2025-04-14 Stein Kevin M (President & CEO) Option Ex 20,000 195.88 3,917,600
2025-03-20 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,357.88 4,073,628
2025-03-20 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2025-03-14 Small Robert J Sale 9,034 1,340.78 12,112,561
2025-03-13 Small Robert J Sale 1,000 1,335.22 1,335,219
2025-03-12 Stein Kevin M (President & CEO) Sale 20,000 1,314.05 26,281,040
2025-03-12 Stein Kevin M (President & CEO) Option Ex 20,000 195.88 3,917,600
2025-03-10 Small Robert J Sale 20,000 1,342.21 26,844,160
2025-03-07 Small Robert J Sale 20,000 1,339.04 26,780,760
2025-03-06 Small Robert J Sale 40,000 1,347.01 53,880,400
2025-03-04 Warren Jessica L (GC, CCO, Secretary) Sale 275 1,376.81 378,623
2025-03-04 Warren Jessica L (GC, CCO, Secretary) Option Ex 275 560.81 154,222
2025-02-20 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,324.92 3,974,760
2025-02-20 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2025-02-18 Howley W Nicholas Sale 5,472 1,314.57 7,193,343
2025-02-18 Howley W Nicholas Option Ex 5,472 140.92 771,114
2025-02-12 Stein Kevin M (President & CEO) Sale 20,000 1,352.32 27,046,300
2025-02-12 Stein Kevin M (President & CEO) Option Ex 20,000 195.88 3,917,600
2025-01-21 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,358.84 4,076,519
2025-01-21 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2025-01-15 Howley W Nicholas Sale 5,472 1,295.83 7,090,803
2025-01-15 Howley W Nicholas Option Ex 5,472 140.92 771,114
2025-01-13 Stein Kevin M (President & CEO) Sale 20,000 1,263.12 25,262,380
2025-01-13 Stein Kevin M (President & CEO) Option Ex 20,000 195.88 3,917,600
2024-12-20 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,256.39 3,769,163
2024-12-20 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-12-16 Howley W Nicholas Sale 5,472 1,269.72 6,947,935
2024-12-16 Howley W Nicholas Option Ex 5,472 140.92 771,114
2024-12-12 Stein Kevin M (President & CEO) Sale 20,000 1,244.75 24,894,940
2024-12-12 Stein Kevin M (President & CEO) Option Ex 20,000 195.88 3,917,600
2024-12-12 Small Robert J Sale 38,053 1,248.99 47,527,854
2024-11-20 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,256.33 3,768,978
2024-11-20 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-11-15 Howley W Nicholas Sale 5,472 1,268.42 6,940,799
2024-11-15 Howley W Nicholas Option Ex 5,472 140.92 771,114
2024-10-15 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,403.97 4,211,913
2024-10-15 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-10-15 Howley W Nicholas Sale 5,472 1,400.00 7,660,783
2024-10-15 Howley W Nicholas Option Ex 5,472 140.92 771,114
2024-08-15 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,260.75 3,782,247
2024-08-15 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-08-15 Howley W Nicholas Sale 5,472 1,261.07 6,900,591
2024-08-15 Howley W Nicholas Option Ex 5,472 215.92 1,181,514
2024-08-12 Stein Kevin M (President & CEO) Sale 10,000 1,232.49 12,324,900
2024-08-12 Stein Kevin M (President & CEO) Option Ex 10,000 270.88 2,708,800
2024-07-15 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,241.20 3,723,609
2024-07-15 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-07-15 Howley W Nicholas Sale 5,073 1,242.02 6,300,747
2024-07-15 Howley W Nicholas Option Ex 5,871 729.39 4,282,278
2024-07-12 Stein Kevin M (President & CEO) Sale 10,000 1,247.87 12,478,699
2024-07-12 Stein Kevin M (President & CEO) Option Ex 10,000 270.88 2,708,800
2024-06-17 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,308.67 3,926,000
2024-06-17 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-06-17 Howley W Nicholas Sale 5,472 1,311.72 7,177,742
2024-06-17 Howley W Nicholas Option Ex 5,472 215.92 1,181,514
2024-06-12 Stein Kevin M (President & CEO) Sale 10,000 1,305.44 13,054,440
2024-06-12 Stein Kevin M (President & CEO) Option Ex 10,000 270.88 2,708,800
2024-06-12 Small Robert J Sale 21,210 1,316.54 27,923,855
2024-06-10 Small Robert J Sale 12,500 1,311.91 16,398,937
2024-06-07 Small Robert J Sale 30,000 1,322.16 39,664,950
2024-06-06 Warren Jessica L (GC, CCO, Secretary) Sale 925 1,340.09 1,239,585
2024-06-06 Warren Jessica L (GC, CCO, Secretary) Option Ex 1,450 347.42 503,759
2024-05-15 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,281.71 3,845,127
2024-05-15 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-05-13 Stein Kevin M (President & CEO) Sale 10,000 1,297.67 12,976,690
2024-05-13 Stein Kevin M (President & CEO) Option Ex 10,000 270.88 2,708,800
2024-05-09 Howley W Nicholas Sale 196 1,318.14 258,355
2024-04-15 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,232.10 3,696,303
2024-04-15 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-04-12 Stein Kevin M (President & CEO) Sale 10,000 1,217.12 12,171,190
2024-04-12 Stein Kevin M (President & CEO) Option Ex 10,000 270.88 2,708,800
2024-03-15 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,173.61 3,520,815
2024-03-15 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-03-12 Valladares Jorge Sale 9,799 1,180.01 11,562,888
2024-03-12 Valladares Jorge Option Ex 9,799 226.34 2,217,905
2024-03-12 Stein Kevin M (President & CEO) Sale 10,000 1,165.34 11,653,380
2024-03-12 Stein Kevin M (President & CEO) Option Ex 10,000 270.88 2,708,800
2024-03-08 Valladares Jorge Sale 2,444 1,180.00 2,883,920
2024-03-08 Valladares Jorge Option Ex 2,444 226.34 553,174
2024-02-27 Small Robert J Sale 253,890 1,160.50 294,639,345
2024-02-26 Lisman Michael (Co-Chief Operating Officer) Sale 8,000 1,195.44 9,563,536
2024-02-26 Lisman Michael (Co-Chief Operating Officer) Option Ex 8,000 347.17 2,777,360
2024-02-26 Valladares Jorge Sale 16,757 1,192.35 19,979,674
2024-02-26 Valladares Jorge Option Ex 16,757 226.34 3,792,779
2024-02-23 Lisman Michael (Co-Chief Operating Officer) Sale 8,000 1,198.60 9,588,768
2024-02-23 Lisman Michael (Co-Chief Operating Officer) Option Ex 8,000 347.17 2,777,360
2024-02-22 Howley W Nicholas Sale 59,214 1,174.01 69,517,532
2024-02-22 Howley W Nicholas Option Ex 59,214 175.03 10,364,226
2024-02-21 Wynne Sarah (Chief Financial Officer) Sale 5,850 1,159.06 6,780,512
2024-02-21 Wynne Sarah (Chief Financial Officer) Option Ex 8,550 308.30 2,635,922
2024-02-21 Howley W Nicholas Sale 9,381 1,165.00 10,928,865
2024-02-21 Howley W Nicholas Option Ex 9,381 172.84 1,621,412
2024-02-16 Howley W Nicholas Sale 2,391 1,151.60 2,753,463
2024-02-16 Howley W Nicholas Option Ex 1,994 172.84 344,642
2024-02-15 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,143.16 3,429,492
2024-02-15 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-02-15 Howley W Nicholas Sale 3,133 1,145.14 3,587,739
2024-02-15 Howley W Nicholas Option Ex 3,530 172.84 610,125
2024-02-15 Small Robert J Sale 4,478 1,155.97 5,176,456
2024-02-15 Small Robert J Option Ex 4,478 126.17 564,989
2024-02-13 Graff Michael Sale 3,460 1,109.61 3,839,240
2024-02-13 Graff Michael Option Ex 3,460 202.16 699,456
2024-02-12 Santana Michele Sale 2 1,112.22 2,224
2024-01-22 Hennessy Sean P Buy 0 1,065.40 0
2024-01-16 Reiss Joel (Co-Chief Operating Officer) Sale 3,000 1,023.10 3,069,297
2024-01-16 Reiss Joel (Co-Chief Operating Officer) Option Ex 3,000 226.34 679,020
2024-01-16 Howley W Nicholas Sale 3,530 1,023.61 3,613,332
2024-01-16 Howley W Nicholas Option Ex 3,530 172.84 610,125
2024-01-11 Howley W Nicholas Sale 14,087 1,015.00 14,298,305
2024-01-11 Howley W Nicholas Option Ex 14,087 172.84 2,434,797
2024-01-10 Howley W Nicholas Sale 38,863 1,016.15 39,490,520
2024-01-10 Howley W Nicholas Option Ex 38,863 172.84 6,717,080
2023-12-29 Howley W Nicholas Sale 23,653 1,015.00 24,007,818
2023-12-29 Howley W Nicholas Option Ex 23,653 172.84 4,088,184

Insider trading activities including stock purchases, stock sales, and option exercises of TDG listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Transdigm Group Inc (symbol TDG, CIK number 1260221) see the Securities and Exchange Commission (SEC) website.



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