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TransDigm Group INC (TDG) S&P 500 XNYS AIRCRAFT PARTS & AUXILIARY EQUIPMENT, NEC Net insider selling (90d)
Latest TDG Insider Trades
About TransDigm Group INC (TDG) TransDigm manufactures and services a broad set of specialized parts for commercial and military aircraft. The firm has three segments: power and control, airframes, and a small nonaviation segment, which serves mostly off-road vehicles and mining equipment. It is an acquisitive holding company focused on buying up smaller firms that make proprietary aerospace products with substantial aftermarket revenue. TransDigm regularly employs financial leverage to amplify its operating results.
Headquarters CLEVELAND, OH
Employees 16,500
Listed 2006
Exchange XNYS https://www.transdigm.com SEC filings for TDG on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 89 38,610 $48.54M Option exercise 11 80,292 Other acquisition / disposition 1 0
TDG Insider Transactions (Form 4) 198 121 Form 4 filings on record, the earliest from Oct 17, 2024, newest first. Filing history page 2 of 3.
Date Insider Transaction Security Shares Price Value Jan 15, 2026 JR Joel Reiss - Officer Option exercise Common Stock
Recent TDG Form 8-K Filings 5
Recent TDG Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Aug 7, 2026 THE FORTUNA TRUST U/T/A DTD 06/01/2018 Director 37,690 $47.57M View on EDGAR Jun 18, 2026 - -
TDG Insider Trading - FAQ
What is the latest insider trade for TDG? TransDigm Group INC (TDG) had 8 insider filings in the last 90 days, with the most recent on 2026-08-19. The full record for TDG runs to 121 Form 4 filings, the earliest from 2024-10-17. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying TDG stock? No insider purchases of TDG were filed in the last 90 days. 8 purchases are on record for this company.
How many insiders are selling TDG stock? 89 insider sales of TDG were filed in the last 90 days, totaling $48.54M.
Where can I see TDG SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks TDG Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow TDG insider buys? Create a free InsiderAlpha account and press Watch on this page to add TDG to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Industrials Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track TDG insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
Sign up free Open-market sale
$86K
Market cap $65.56B
P/E ratio 35.90
Dividend yield -
Average volume 397.2K
52 week high $1,463.03
52 week low $1,123.61
Today's high $1,185.47
Today's low $1,161.25
Open $1,180.00
Volume 497.3K
Previous close $1,185.97
Shares outstanding 55.28M Market cap
$65.56B
16,500 employees
TDG Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 89 sales totaling $48.54M.
Most-Active TDG Insiders - Last 90 Days 10 Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 44 $1,420.38 $62K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 67 $1,421.89 $95K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 95 $1,422.63 $135K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 128 $1,423.80 $182K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 90 $1,425.10 $128K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 245 $1,426.35 $349K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 396 $1,427.27 $565K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 477 $1,428.03 $681K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 260 $1,429.14 $372K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 372 $1,430.21 $532K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 453 $1,431.26 $648K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 257 $1,432.40 $368K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 486 $1,433.36 $697K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 200 $1,434.18 $287K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 205 $1,435.14 $294K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 35 $1,436.15 $50K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 50 $1,437.56 $72K
Jan 15, 2026 JR Joel Reiss - Officer Open-market sale Common Stock 40 $1,438.91 $58K
Jan 15, 2026 JR Joel Reiss - Officer Option exercise Stock Option 3,900 $0.00 -
Jan 14, 2026 KS Kevin M. Stein Option exercise Common Stock 7,627 $342.31 $2.61M
Jan 14, 2026 KS Kevin M. Stein Open-market sale Common Stock 2,141 $1,405.64 $3.01M
Jan 14, 2026 KS Kevin M. Stein Open-market sale Common Stock 3,964 $1,406.41 $5.58M
Jan 14, 2026 KS Kevin M. Stein Open-market sale Common Stock 1,522 $1,407.34 $2.14M
Jan 8, 2026 KS Kevin M. Stein Option exercise Common Stock 17,373 $342.31 $5.95M
Jan 8, 2026 KS Kevin M. Stein Open-market sale Common Stock 6,384 $1,405.30 $8.97M
Jan 8, 2026 KS Kevin M. Stein Open-market sale Common Stock 1,278 $1,406.72 $1.80M
Jan 8, 2026 KS Kevin M. Stein Open-market sale Common Stock 2,722 $1,407.46 $3.83M
Jan 8, 2026 KS Kevin M. Stein Open-market sale Common Stock 5,239 $1,408.44 $7.38M
Jan 8, 2026 KS Kevin M. Stein Open-market sale Common Stock 480 $1,409.57 $677K
Jan 8, 2026 KS Kevin M. Stein Open-market sale Common Stock 930 $1,410.65 $1.31M
Jan 8, 2026 KS Kevin M. Stein Open-market sale Common Stock 340 $1,413.17 $480K
Jan 5, 2026 KS Kevin M. Stein Option exercise Common Stock 17,940 $105.88 $1.90M
Jan 5, 2026 KS Kevin M. Stein Option exercise Common Stock 7,060 $341.28 $2.41M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 560 $1,361.59 $762K
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 20 $1,363.08 $27K
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 160 $1,364.57 $218K
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 255 $1,367.18 $349K
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 716 $1,368.11 $980K
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 3,956 $1,369.05 $5.42M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 4,457 $1,370.12 $6.11M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 1,777 $1,371.09 $2.44M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 2,084 $1,372.04 $2.86M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 481 $1,373.01 $660K
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 1,020 $1,374.25 $1.40M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 1,338 $1,375.16 $1.84M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 1,587 $1,376.15 $2.18M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 403 $1,377.30 $555K
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 1,239 $1,378.51 $1.71M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 1,218 $1,379.64 $1.68M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 385 $1,380.53 $532K
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 903 $1,381.53 $1.25M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 1,867 $1,382.62 $2.58M
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 274 $1,384.12 $379K
Jan 5, 2026 KS Kevin M. Stein Open-market sale Common Stock 300 $1,387.04 $416K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 336 $1,287.69 $433K
Dec 15, 2025 JR Joel Reiss - Officer Option exercise Common Stock 3,900 $284.97 $1.11M
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 80 $1,282.73 $103K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 280 $1,283.70 $359K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 220 $1,284.78 $283K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 536 $1,288.54 $691K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 420 $1,289.81 $542K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 220 $1,290.68 $284K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 20 $1,306.64 $26K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 220 $1,285.64 $283K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 262 $1,286.70 $337K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 418 $1,291.68 $540K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 279 $1,292.66 $361K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 61 $1,293.76 $79K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 50 $1,294.90 $65K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 58 $1,296.10 $75K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 32 $1,297.32 $42K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 44 $1,298.11 $57K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 12 $1,299.04 $16K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 25 $1,300.44 $33K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 14 $1,301.78 $18K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 45 $1,303.15 $59K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 60 $1,304.90 $78K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 118 $1,305.98 $154K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 40 $1,307.95 $52K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 20 $1,309.34 $26K
Dec 15, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 30 $1,311.25 $39K
Dec 15, 2025 JR Joel Reiss - Officer Option exercise Stock Option 3,900 $0.00 -
Dec 10, 2025 RS Robert J. Small Open-market sale Common Stock 4,046 $1,290.30 $5.22M
Dec 9, 2025 RS Robert J. Small - Director Open-market sale Common Stock 75,673 $1,335.72 $101.08M
Dec 9, 2025 RS Robert J. Small - Director Open-market sale Common Stock 15,280 $1,335.72 $20.41M
Dec 4, 2025 KS Kevin M. Stein Option exercise Common Stock 17,526 $105.88 $1.86M
Dec 4, 2025 KS Kevin M. Stein Open-market sale Common Stock 6,910 $1,360.15 $9.40M
Dec 4, 2025 KS Kevin M. Stein Open-market sale Common Stock 2,081 $1,361.43 $2.83M
Dec 4, 2025 KS Kevin M. Stein Open-market sale Common Stock 1,794 $1,362.63 $2.44M
Dec 4, 2025 KS Kevin M. Stein Open-market sale Common Stock 1,397 $1,363.39 $1.90M
Dec 4, 2025 KS Kevin M. Stein Open-market sale Common Stock 3,139 $1,364.58 $4.28M
Dec 4, 2025 KS Kevin M. Stein Open-market sale Common Stock 1,680 $1,365.33 $2.29M
Dec 4, 2025 KS Kevin M. Stein Open-market sale Common Stock 495 $1,366.19 $676K
Dec 4, 2025 KS Kevin M. Stein Open-market sale Common Stock 30 $1,367.22 $41K
Nov 28, 2025 KS Kevin M. Stein Option exercise Common Stock 4,592 $105.88 $486K
Nov 28, 2025 KS Kevin M. Stein Open-market sale Common Stock 2,997 $1,360.44 $4.08M
Nov 28, 2025 KS Kevin M. Stein Open-market sale Common Stock 1,545 $1,361.25 $2.10M
Nov 28, 2025 KS Kevin M. Stein Open-market sale Common Stock 50 $1,362.43 $68K
Nov 25, 2025 KS Kevin M. Stein Option exercise Common Stock 4,187 $105.88 $443K
Nov 26, 2025 KS Kevin M. Stein Open-market sale Common Stock 30 $1,360.06 $41K
Nov 25, 2025 KS Kevin M. Stein Open-market sale Common Stock 4,097 $1,360.55 $5.57M
Nov 25, 2025 KS Kevin M. Stein Open-market sale Common Stock 90 $1,361.87 $123K
Nov 21, 2025 KS Kevin M. Stein Open-market sale Common Stock 230 $1,360.31 $313K
Nov 20, 2025 KS Kevin M. Stein Open-market sale Common Stock 49 $1,363.22 $67K
Nov 20, 2025 KS Kevin M. Stein Option exercise Common Stock 1,104 $105.88 $117K
Nov 20, 2025 KS Kevin M. Stein Open-market sale Common Stock 655 $1,360.33 $891K
Nov 20, 2025 KS Kevin M. Stein Open-market sale Common Stock 400 $1,361.52 $545K
Nov 18, 2025 KS Kevin M. Stein Open-market sale Common Stock 848 $1,361.89 $1.15M
Nov 18, 2025 KS Kevin M. Stein Open-market sale Common Stock 1,531 $1,362.64 $2.09M
Nov 18, 2025 KS Kevin M. Stein Open-market sale Common Stock 1,162 $1,363.73 $1.58M
Nov 18, 2025 KS Kevin M. Stein Open-market sale Common Stock 70 $1,364.59 $96K
Nov 18, 2025 KS Kevin M. Stein Option exercise Common Stock 7,191 $105.88 $761K
Nov 18, 2025 KS Kevin M. Stein Open-market sale Common Stock 3,580 $1,360.28 $4.87M
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 29 $1,329.03 $39K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 31 $1,330.32 $41K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 220 $1,331.56 $293K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 136 $1,332.62 $181K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 416 $1,333.76 $555K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 195 $1,334.71 $260K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 212 $1,335.42 $283K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 290 $1,336.93 $388K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 299 $1,338.32 $400K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 256 $1,339.13 $343K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 122 $1,340.28 $164K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 233 $1,341.17 $312K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 200 $1,342.35 $268K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 224 $1,343.21 $301K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 112 $1,344.57 $151K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 255 $1,345.68 $343K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 90 $1,346.72 $121K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 129 $1,347.80 $174K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 108 $1,349.11 $146K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 110 $1,349.80 $148K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 73 $1,351.04 $99K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 80 $1,352.01 $108K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 60 $1,353.06 $81K
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 10 $1,353.92 $14K
Nov 17, 2025 JR Joel Reiss - Officer Option exercise Common Stock 3,900 $284.97 $1.11M
Nov 17, 2025 JR Joel Reiss - Officer Open-market sale Common Stock 10 $1,326.21 $13K
Nov 17, 2025 JR Joel Reiss - Officer Option exercise Stock Option 3,900 $0.00 -
Nov 14, 2025 ML Michael Lisman - Officer Open-market purchase Common Stock 384 $1,342.93 $516K
Nov 14, 2025 ML Michael Lisman - Officer Open-market purchase Common Stock 104 $1,344.76 $140K
Nov 14, 2025 ML Michael Lisman - Officer Open-market purchase Common Stock 600 $1,334.13 $800K
Nov 14, 2025 ML Michael Lisman - Officer Open-market purchase Common Stock 55 $1,337.38 $74K
Nov 14, 2025 ML Michael Lisman - Officer Open-market purchase Common Stock 290 $1,338.56 $388K
Nov 14, 2025 ML Michael Lisman - Officer Open-market purchase Common Stock 521 $1,341.49 $699K
Nov 4, 2025 PP Peter Palmer Grant or award Stock Option 518 $0.00 -
Nov 4, 2025 DB David Barr Grant or award Stock Option 518 $0.00 -
Nov 4, 2025 SW Sarah Wynne - Officer Grant or award Stock Option 8,700 $0.00 -
Transportation Logistics Systems, Inc.
W. Nicholas Howley - DirectorOpen-market sale$250K
Joel Reiss - Officer
