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TDG

MODERATE

TransDigm Group INC

CIK: 0001260221

Strong Sell (90% confidence)

Last activity: 1 weeks ago

Financial Metrics

As of Sep 30, 2025 (10-K)

Revenue $8.83B
Net Income $447.21M
Total Cash $1.47B
Total Debt $1.90B
Current Ratio 0.61

Trend Signals

CEO Buy STRONG

CEO buying activity

1 weeks ago

Insider Roster (5 total, 5 active)

Insider Buys Sells Net Value Holdings
Stein Kevin M
OTHER
 		0 86 -$185.52M
25,127 shares
$35.87M
SMALL ROBERT J
OTHER
 		0 5 -$127.55M
5,699 shares
$7.35M
Reiss Joel
Co-Chief Operating Officer
 		0 44 -$10.61M
4,130 shares
$5.92M
Lisman Michael
President & CEO
 		1 0 $1.22M
3,259 shares
$4.19M
Murphy Patrick Joseph
Co-Chief Operating Officer
 		0 3 -$1.19M
1,055 shares
$1.51M

Recent Transactions

BUY Lisman Michael (President & CEO)

950 shares @ $1284.26

$1.22M

Feb 6, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

6,665 shares @ $1427.38

$9.51M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

5,906 shares @ $1425.57

$8.42M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

5,665 shares @ $1426.61

$8.08M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

4,859 shares @ $1424.47

$6.92M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

3,997 shares @ $1423.66

$5.69M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

3,093 shares @ $1433.46

$4.43M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

2,141 shares @ $1422.48

$3.05M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

2,067 shares @ $1428.64

$2.95M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

2,017 shares @ $1430.26

$2.88M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,810 shares @ $1429.61

$2.59M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,497 shares @ $1436.43

$2.15M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,462 shares @ $1434.63

$2.10M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,421 shares @ $1431.46

$2.03M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,364 shares @ $1432.53

$1.95M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

861 shares @ $1421.73

$1.22M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

810 shares @ $1435.63

$1.16M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

720 shares @ $1439.56

$1.04M

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

428 shares @ $1437.40

$615K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Murphy Patrick Joseph (Co-Chief Operating Officer)

290 shares @ $1430.10

$415K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

270 shares @ $1438.91

$389K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

223 shares @ $1420.51

$317K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

218 shares @ $1407.76

$307K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

175 shares @ $1414.04

$247K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

112 shares @ $1419.43

$159K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

58 shares @ $1414.36

$82K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

52 shares @ $1415.63

$74K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

48 shares @ $1417.44

$68K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

40 shares @ $1404.68

$56K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

10 shares @ $1440.48

$14K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

6 shares @ $1410.98

$8K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

2 shares @ $1416.39

$3K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

2 shares @ $1409.71

$3K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1 shares @ $1412.26

$1K

Feb 2, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

486 shares @ $1433.36

$697K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

477 shares @ $1428.03

$681K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

453 shares @ $1431.26

$648K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

396 shares @ $1427.27

$565K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

372 shares @ $1430.21

$532K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

260 shares @ $1429.14

$372K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

257 shares @ $1432.40

$368K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

245 shares @ $1426.35

$349K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

205 shares @ $1435.14

$294K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

200 shares @ $1434.18

$287K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

128 shares @ $1423.80

$182K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

95 shares @ $1422.63

$135K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

90 shares @ $1425.10

$128K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

67 shares @ $1421.89

$95K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

50 shares @ $1437.56

$72K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

44 shares @ $1420.38

$62K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

40 shares @ $1438.91

$58K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

35 shares @ $1436.15

$50K

Jan 15, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

3,964 shares @ $1406.41

$5.58M

Jan 14, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

2,141 shares @ $1405.64

$3.01M

Jan 14, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,522 shares @ $1407.34

$2.14M

Jan 14, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

6,384 shares @ $1405.30

$8.97M

Jan 8, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

5,239 shares @ $1408.44

$7.38M

Jan 8, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

2,722 shares @ $1407.46

$3.83M

Jan 8, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,278 shares @ $1406.72

$1.80M

Jan 8, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

930 shares @ $1410.65

$1.31M

Jan 8, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

480 shares @ $1409.57

$677K

Jan 8, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

340 shares @ $1413.17

$480K

Jan 8, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

4,457 shares @ $1370.12

$6.11M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

3,956 shares @ $1369.05

$5.42M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

2,084 shares @ $1372.04

$2.86M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,867 shares @ $1382.62

$2.58M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,777 shares @ $1371.09

$2.44M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,587 shares @ $1376.15

$2.18M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,338 shares @ $1375.16

$1.84M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,239 shares @ $1378.51

$1.71M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,218 shares @ $1379.64

$1.68M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

1,020 shares @ $1374.25

$1.40M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

903 shares @ $1381.53

$1.25M

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

716 shares @ $1368.11

$980K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

560 shares @ $1361.59

$762K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

481 shares @ $1373.01

$660K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

403 shares @ $1377.30

$555K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

385 shares @ $1380.53

$532K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

300 shares @ $1387.04

$416K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

274 shares @ $1384.12

$379K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

255 shares @ $1367.18

$349K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

160 shares @ $1364.57

$218K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Stein Kevin M (OTHER)

20 shares @ $1363.08

$27K

Jan 5, 2026

Conviction: | View SEC Filing →
SELL Murphy Patrick Joseph (Co-Chief Operating Officer)

290 shares @ $1329.03

$385K

Jan 2, 2026

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

536 shares @ $1288.54

$691K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

420 shares @ $1289.81

$542K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

418 shares @ $1291.68

$540K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

336 shares @ $1287.69

$433K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

279 shares @ $1292.66

$361K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

280 shares @ $1283.70

$359K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

262 shares @ $1286.70

$337K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

220 shares @ $1290.68

$284K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

220 shares @ $1285.64

$283K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

220 shares @ $1284.78

$283K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

118 shares @ $1305.98

$154K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

80 shares @ $1282.73

$103K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

61 shares @ $1293.76

$79K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

60 shares @ $1304.90

$78K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

58 shares @ $1296.10

$75K

Dec 15, 2025

Conviction: | View SEC Filing →
SELL Reiss Joel (Co-Chief Operating Officer)

50 shares @ $1294.90

$65K

Dec 15, 2025

Conviction: | View SEC Filing →

⚠️ Important Disclaimer

• This is AI-generated analysis for educational purposes only, not financial advice.

• Insider trading data is derived from SEC Form 4 filings and may contain errors.

• Always conduct your own research and consult qualified financial advisors before making investment decisions.