LYTIR

Company · TDG

Transdigm Group Incorporated

Name as listed on its exchange; filed with the SEC as TransDigm Group INC.

Nasdaq's symbol directory lists TDG on the New York Stock Exchange as “Transdigm Group Incorporated Common Stock”.

In the 12 months to Nov 8, 2026: insiders sold on 8 occasions ($57.5M); 3 planned-sale notices; 17 congressional trade disclosures; 10 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $57.5M in total.Jun: Insider sales $18.3MJul: Insider sales $12.9MAug: Insider sales $17.4MSep: Insider sales $4.3MOct: Insider sales $4.6MDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $57.5M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. W. Nicholas Howley sold on 3 days 2 of them under a 10b5-1 plan latest Aug 18, 2026 sold $38.2M
  2. Joel Reiss, Co-Chief Operating Officer sold on 5 days 4 of them under a 10b5-1 plan latest Oct 15, 2026 sold $19.3M
Every trade (8)
  1. SELLJoel Reiss, Co-Chief Operating Officer sold Oct 15, 2026 4,100 shares 21 legs combined 10b5-1 plan (scheduled) filing $4.6M
  2. SELLJoel Reiss, Co-Chief Operating Officer sold Sep 15, 2026 3,900 shares 27 legs combined 10b5-1 plan (scheduled) filing $4.3M
  3. SELLW. Nicholas Howley sold Aug 18, 2026 10,132 shares 14 legs combined 10b5-1 plan (scheduled) filing $12.5M
  4. SELLJoel Reiss, Co-Chief Operating Officer sold Aug 17, 2026 3,900 shares 19 legs combined 10b5-1 plan (scheduled) filing $4.8M
  5. SELLW. Nicholas Howley sold Jul 20, 2026 10,132 shares 12 legs combined 10b5-1 plan (scheduled) filing $12.3M
  6. SELLJoel Reiss, Co-Chief Operating Officer sold Jul 15, 2026 504 shares 5 legs combined 10b5-1 plan (scheduled) filing $620K
  7. SELLW. Nicholas Howley sold Jun 18, 2026 10,132 shares 22 legs combined filing $13.4M
  8. SELLJoel Reiss, Co-Chief Operating Officer sold Jun 15, 2026 3,900 shares 18 legs combined filing $5.0M

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. JOEL REISS filed Sep 15, 2026 Officer 8,000 shares planned sale date 09/15/2026 filing $8.9M
  2. THE FORTUNA TRUST U/T/A DTD 06/01/2018 filed Aug 7, 2026 Director 37,690 shares planned sale date 08/07/2026 filing $47.6M
  3. Howley W Nicholas filed Jun 18, 2026 Officer 30,396 shares planned sale date 06/18/2026 filing $40.1M

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. April McClain Delaney (D-MD06): Sale Aug 25, 2026 reported Sep 9, 2026 one of 78 trades the member reported that day House Stocks (including ADRs) owner: dependent $100,001 - $250,000
  2. April McClain Delaney (D-MD06): Purchase Jul 28, 2026 reported Aug 3, 2026 one of 62 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  3. April McClain Delaney (D-MD06): Purchase May 22, 2026 reported Jun 5, 2026 one of 53 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  4. April McClain Delaney (D-MD06): Purchase May 21, 2026 reported Jun 5, 2026 one of 53 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  5. April McClain Delaney (D-MD06): Purchase May 13, 2026 reported Jun 5, 2026 one of 53 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  6. April McClain Delaney (D-MD06): Purchase May 8, 2026 reported Jun 5, 2026 one of 53 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  7. April McClain Delaney (D-MD06): Purchase May 7, 2026 reported Jun 5, 2026 one of 53 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  8. April McClain Delaney (D-MD06): Purchase Apr 29, 2026 reported May 6, 2026 one of 24 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  9. April McClain Delaney (D-MD06): Purchase Apr 20, 2026 reported May 6, 2026 one of 24 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  10. April McClain Delaney (D-MD06): Purchase Apr 17, 2026 reported May 6, 2026 one of 24 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  11. April McClain Delaney (D-MD06): Purchase Apr 16, 2026 reported May 6, 2026 one of 24 trades the member reported that day House Stocks (including ADRs) owner: dependent $15,001 - $50,000
  12. April McClain Delaney (D-MD06): Purchase Apr 15, 2026 reported May 6, 2026 one of 24 trades the member reported that day House Stocks (including ADRs) owner: dependent $1,001 - $15,000
  13. Alan Armstrong (R-OK): Purchase Mar 27, 2026 reported Jul 21, 2026 one of 703 trades the member reported that day Senate Stock $1,001 - $15,000
  14. Gilbert Cisneros (D-CA31): Sale Mar 25, 2026 reported Apr 7, 2026 one of 141 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  15. Gilbert Cisneros (D-CA31): Purchase Mar 16, 2026 reported Apr 7, 2026 one of 141 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  16. Gilbert Cisneros (D-CA31): Purchase Jan 30, 2026 reported Feb 13, 2026 one of 151 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  17. Gilbert Cisneros (D-CA31): Sale Dec 24, 2025 reported Jan 12, 2026 one of 121 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Entry into a material definitive agreement; Creation of a direct financial obligation filing Sep 29, 2026
  2. Other events filing Sep 28, 2026
  3. Other events filing Sep 21, 2026
  4. Regulation FD disclosure filing Sep 14, 2026
  5. Regulation FD disclosure filing Sep 14, 2026
  6. Regulation FD disclosure filing Sep 14, 2026
  7. Results of operations and financial condition filing Aug 4, 2026
  8. Other events filing Jul 27, 2026
  9. Departure or appointment of directors or officers filing Jul 24, 2026
  10. Other events filing Jul 13, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.