SEC Form 4 · accession 0001656109-26-000004
TransDigm Group INC · TDG
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Joel Reiss
Officer — Co-Chief Operating Officer
Period of report
Jul 15, 2026
Accepted (ET)
Jul 17, 2026 · 4:16 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001260221
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Jul 15, 2026 | M | 3,900 | $284.97 | A | 7,500 | D | |
| Common StockF1 | Jul 15, 2026 | S | 10 | $1,195.204 | D | 7,490 | D | |
| Common StockF2 | Jul 15, 2026 | S | 70 | $1,197.851 | D | 7,420 | D | |
| Common StockF3 | Jul 15, 2026 | S | 80 | $1,198.795 | D | 7,340 | D | |
| Common StockF4 | Jul 15, 2026 | S | 156 | $1,200.1437 | D | 7,184 | D | |
| Common StockF5 | Jul 15, 2026 | S | 160 | $1,201.3181 | D | 7,024 | D | |
| Common StockF6 | Jul 15, 2026 | S | 116 | $1,202.4405 | D | 6,908 | D | |
| Common StockF7 | Jul 15, 2026 | S | 74 | $1,203.8026 | D | 6,834 | D | |
| Common Stock | Jul 15, 2026 | S | 10 | $1,204.60 | D | 6,824 | D | |
| Common StockF8 | Jul 15, 2026 | S | 30 | $1,206.69 | D | 6,794 | D | |
| Common StockF9 | Jul 15, 2026 | S | 60 | $1,208.5072 | D | 6,734 | D | |
| Common StockF10 | Jul 15, 2026 | S | 80 | $1,209.1975 | D | 6,654 | D | |
| Common StockF11 | Jul 15, 2026 | S | 30 | $1,210.3053 | D | 6,624 | D | |
| Common StockF12 | Jul 15, 2026 | S | 90 | $1,211.5011 | D | 6,534 | D | |
| Common StockF13 | Jul 15, 2026 | S | 110 | $1,212.5936 | D | 6,424 | D | |
| Common StockF14 | Jul 15, 2026 | S | 170 | $1,213.7275 | D | 6,254 | D | |
| Common StockF15 | Jul 15, 2026 | S | 211 | $1,215.1264 | D | 6,043 | D | |
| Common StockF16 | Jul 15, 2026 | S | 239 | $1,216.2243 | D | 5,804 | D | |
| Common StockF17 | Jul 15, 2026 | S | 60 | $1,217.2467 | D | 5,744 | D | |
| Common StockF18 | Jul 15, 2026 | S | 90 | $1,218.22 | D | 5,654 | D | |
| Common StockF19 | Jul 15, 2026 | S | 90 | $1,219.2991 | D | 5,564 | D | |
| Common StockF20 | Jul 15, 2026 | S | 140 | $1,220.4962 | D | 5,424 | D | |
| Common StockF21 | Jul 15, 2026 | S | 210 | $1,221.5297 | D | 5,214 | D | |
| Common StockF22 | Jul 15, 2026 | S | 60 | $1,222.5986 | D | 5,154 | D | |
| Common StockF23 | Jul 15, 2026 | S | 138 | $1,223.512 | D | 5,016 | D | |
| Common StockF24 | Jul 15, 2026 | S | 509 | $1,224.6206 | D | 4,507 | D | |
| Common StockF25 | Jul 15, 2026 | S | 153 | $1,225.6161 | D | 4,354 | D | |
| Common StockF26 | Jul 15, 2026 | S | 40 | $1,226.9825 | D | 4,314 | D | |
| Common StockF27 | Jul 15, 2026 | S | 210 | $1,227.8195 | D | 4,104 | D | |
| Common StockF28 | Jul 15, 2026 | S | 90 | $1,228.79 | D | 4,014 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option | $284.97 | Jul 15, 2026 | M | 3,900 | A | Sep 30, 2021 | Nov 8, 2027 | Common Stock | 3,900 | 19,700 | D |
Explanation of responses
- F1Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,195.0300 - $1,195.3200. 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.
- F10Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,208.9700 - $1,209.4000. 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.
- F11Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,210.1300 - $1,210.4500. 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.
- F12Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,211.1600 - $1,211.9300. 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.
- F13Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,212.2400 - $1,213.0100. 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.
- F14Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,213.2600 - $1,214.1500. 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.
- F15Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,214.6500 - $1,215.6200 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.
- F16Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,215.6600 - $1,216.6400. 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.
- F17Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,216.7200 - $1,217.6700. 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.
- F18Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,217.8300 - $1,218.6200. 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.
- F19Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,218.9300 - $1,219.6900. 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.
- F2Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,197.5000 - $1,198.4400. 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.
- F20Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,220.0600 - $1,221.0400. 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.
- F21Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,221.0900 - $1,222.0600. 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.
- F22Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,222.1300 - $1,223.1200. 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.
- F23Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,223.1500 - $1,224.1200. 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.
- F24Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,224.1600 - $1,225.1300. 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.
- F25Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,225.2200 - $1,226.1000. 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.
- F26Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,226.4000- $1,227.3200. 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.
- F27Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,227.5200- $1,228.4600. 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.
- F28Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,228.5700 - $1,229.4400. 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.
- F3Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,198.6500 - $1,199.4500. 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.
- F4Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,199.8400 - $1,200.5700. 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.
- F5Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,200.8800 - $1,2201.7100. 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.
- F6Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,202.0100 - $1,202.9200. 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.
- F7Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,203.0500 - $1,204.0300. 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.
- F8Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,206.4600 - $1,207.0900. 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.
- F9Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,207.9200 - $1,208.9000. 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.
Remarks
Due to the 30-line item limitation in Table 1, this is the first of two Form 4s filed by the reporting person for this transaction.