Form 4 for TDG TransDigm Group
Accepted 2026-08-18 16:26:30 ET · period of report 2026-08-17 · accession 0001656109-26-000007 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-08-18 16:26 | 2026-08-17 | TDG | Reiss Joel | Co-COO | M - OptEx | $284.97 | +3,900 | 7,500 | +108% | +$1.11M |
| DMT | 2026-08-18 16:26 | 2026-08-17 | TDG | Reiss Joel | Co-COO | S - Sale+OE | $1,238.76 | -3,900 | 3,600 | -52% | -$4.83M |
| DT | 2026-08-18 16:26 | 2026-08-17 | TDG | Reiss Joel | Co-COO | M - OptEx | $0.00 | -3,900 | 8,000 | -33% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-08-17 | M | A | 3,900 | $284.97 | 7,500 | D | — | — | |
| 2 | Common | Common Stock | 2026-08-17 | S | D | 140 | $1,232.82 | 7,360 | D | — | — | (F1) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,232.2750 - $1,233.1900. 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 |
| 3 | Common | Common Stock | 2026-08-17 | S | D | 260 | $1,233.87 | 7,100 | D | — | — | (F2) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,233.3700 - $1,234.3600. 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 |
| 4 | Common | Common Stock | 2026-08-17 | S | D | 327 | $1,234.93 | 6,773 | D | — | — | (F3) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,234.3700 - $1,235.3600. 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 |
| 5 | Common | Common Stock | 2026-08-17 | S | D | 373 | $1,235.86 | 6,400 | D | — | — | (F4) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,235.4200 - $1,236.3800. 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 |
| 6 | Common | Common Stock | 2026-08-17 | S | D | 671 | $1,236.80 | 5,729 | D | — | — | (F5) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,236.4300 - $1,237.4100. 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 |
| 7 | Common | Common Stock | 2026-08-17 | S | D | 499 | $1,237.87 | 5,230 | D | — | — | (F6) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,237.4300 - $1,238.3900. 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 |
| 8 | Common | Common Stock | 2026-08-17 | S | D | 340 | $1,238.84 | 4,890 | D | — | — | (F7) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,238.4300 - $1,239.2900. 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 |
| 9 | Common | Common Stock | 2026-08-17 | S | D | 400 | $1,239.99 | 4,490 | D | — | — | (F8) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,239.4400 - $1,240.4200. 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 |
| 10 | Common | Common Stock | 2026-08-17 | S | D | 120 | $1,240.78 | 4,370 | D | — | — | (F9) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,240.6000 - $1,241.2200. 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 |
| 11 | Common | Common Stock | 2026-08-17 | S | D | 112 | $1,242.28 | 4,258 | D | — | — | (F10) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,241.6000 - $1,242.5500. 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 |
| 12 | Common | Common Stock | 2026-08-17 | S | D | 138 | $1,243.03 | 4,120 | D | — | — | (F11) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,242.6200 - $1,243.5300. 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 |
| 13 | Common | Common Stock | 2026-08-17 | S | D | 100 | $1,243.91 | 4,020 | D | — | — | (F12) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,243.6700 - $1,244.5000. 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 |
| 14 | Common | Common Stock | 2026-08-17 | S | D | 145 | $1,245.29 | 3,875 | D | — | — | (F13) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,244.7300 - $1,245.5800. 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 |
| 15 | Common | Common Stock | 2026-08-17 | S | D | 37 | $1,245.90 | 3,838 | D | — | — | (F14) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,245.7500 - $1,246.1600. 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 |
| 16 | Common | Common Stock | 2026-08-17 | S | D | 48 | $1,247.31 | 3,790 | D | — | — | (F15) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,246.8900 - $1,247.8550. 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 |
| 17 | Common | Common Stock | 2026-08-17 | S | D | 60 | $1,248.26 | 3,730 | D | — | — | (F16) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,247.9400 - $1,248.6700. 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 |
| 18 | Common | Common Stock | 2026-08-17 | S | D | 20 | $1,250.82 | 3,710 | D | — | — | (F17) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,250.6200 - $1,251.0100. 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 |
| 19 | Common | Common Stock | 2026-08-17 | S | D | 80 | $1,252.11 | 3,630 | D | — | — | (F18) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,251.6500 - $1,252.5000. 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 |
| 20 | Common | Common Stock | 2026-08-17 | S | D | 30 | $1,253.08 | 3,600 | D | — | — | (F19) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,252.7500 - $1,253.5500. 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 |
| 21 | Derivative | Stock Option | 2026-08-17 | M | D | 3,900 | $0.00 | 8,000 | D | $284.97 · 2021-09-30 to 2027-11-08 | 3,900 Common Stock |