Joel Reiss - 15 Jul 2026 Form 4 Insider Report for TransDigm Group INC (TDG)

Reporting relationship: Co-Chief Operating Officer
Issuer ticker: TDG
Reported as of: 15 Jul 2026
Net transaction value: -$509,678
SEC form: 4
Accepted by SEC: 17 Jul 2026, 16:17:40 UTC
Prior SEC filing: 16 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Rachel L. Quinlan as attorney in fact for Joel Reiss

Key filing fact

Joel Reiss filed Form 4 for TransDigm Group INC (TDG) on 17 Jul 2026.

Key facts

This page summarizes Joel Reiss's Form 4 filing for TransDigm Group INC (TDG).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 17 Jul 2026, 16:17.

Change

Previous filing in this sequence was filed on 16 Jun 2026.
Current net transaction value: -$509,678.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001656109 Primary reporting owner

Reiss Joel

Relationship: Co-Chief Operating Officer
Address: 1350 EUCLID AVE, SUITE 1600, CLEVELAND
Signature: /s/ Rachel L. Quinlan as attorney in fact for Joel Reiss
Signature date: 17 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TDG transaction

Common Stock

Sale

Transaction value: $233,711
Shares: -190
Change %: -4.7%
Price: $1230.06
Shares after: 3,824
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F1

TDG transaction

Common Stock

Sale

Transaction value: $86,177
Shares: -70
Change %: -1.8%
Price: $1231.09
Shares after: 3,754
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F2

TDG transaction

Common Stock

Sale

Transaction value: $177,457
Shares: -144
Change %: -3.8%
Price: $1232.34
Shares after: 3,610
Date: 15 Jul 2026
Ownership: Direct
Footnotes: F3

TDG transaction

Common Stock

Sale

Transaction value: $12,334
Shares: -10
Change %: -0.28%
Price: $1233.38
Shares after: 3,600
Date: 15 Jul 2026
Ownership: Direct

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,229.6600 - $1,230.5400. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

Footnote F2

Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,230.8800 - $1,231.4800. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

Footnote F3

Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,231.9900 - $1,232.8300. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

SEC remarks

Due to a 30-line item limitation in Table 1, this is the second of two Form 4s filed by the reporting person for this transaction.