Form 4 for TDG TransDigm Group
Accepted 2025-12-16 00:00:00 ET · period of report 2025-12-15 · accession 0001193125-25-320860 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DMT | 2025-12-16 | 2025-12-15 | TDG | Reiss Joel | Co-COO | S - Sale+OE | $1,290.52 | -3,900 | 6,102 | -39% | -$5.03M |
| DT | 2025-12-16 | 2025-12-15 | TDG | Reiss Joel | Co-COO | M - OptEx | $284.97 | +3,900 | 7,500 | +108% | +$1.11M |
| DT | 2025-12-16 | 2025-12-15 | TDG | Reiss Joel | Co-COO | M - OptEx | $0.00 | -3,900 | 39.2K | -9% | $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 | 2025-12-15 | S | D | 118 | $1,305.98 | 3,710 | D | — | — | (F22) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,305.5200 - $1,306.3400. 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. |
| 2 | Common | Common Stock | 2025-12-15 | S | D | 20 | $1,306.64 | 3,690 | D | — | — | |
| 3 | Common | Common Stock | 2025-12-15 | S | D | 32 | $1,297.32 | 4,028 | D | — | — | (F15) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,296.8000 - $1,297.6500. 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 | 2025-12-15 | S | D | 58 | $1,296.10 | 4,060 | D | — | — | (F14) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,295.5300 - $1,296.3600. 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 | 2025-12-15 | S | D | 50 | $1,294.90 | 4,118 | D | — | — | (F13) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,294.2900 - $1,295.2000. 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 | 2025-12-15 | S | D | 61 | $1,293.76 | 4,168 | D | — | — | (F12) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,293.2600 - $1,294.1500. 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. |
| 7 | Common | Common Stock | 2025-12-15 | S | D | 279 | $1,292.66 | 4,229 | D | — | — | (F11) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,292.2400 - $1,293.2300. 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 | 2025-12-15 | S | D | 418 | $1,291.68 | 4,508 | D | — | — | (F10) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,291.2300 - $1,292.2200. 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. |
| 9 | Common | Common Stock | 2025-12-15 | S | D | 220 | $1,290.68 | 4,926 | D | — | — | (F9) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,290.2000 - $1,291.1300. 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. |
| 10 | Common | Common Stock | 2025-12-15 | S | D | 420 | $1,289.81 | 5,146 | D | — | — | (F8) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,289.2000 - $1,290.1900. 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. |
| 11 | Common | Common Stock | 2025-12-15 | S | D | 536 | $1,288.54 | 5,566 | D | — | — | (F7) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,288.1800 - $1,289.0500. 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 | 2025-12-15 | S | D | 40 | $1,307.95 | 3,650 | D | — | — | (F23) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,307.8300 - $1,308.1900. 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. |
| 13 | Common | Common Stock | 2025-12-15 | S | D | 20 | $1,309.34 | 3,630 | D | — | — | |
| 14 | Common | Common Stock | 2025-12-15 | S | D | 30 | $1,311.25 | 3,600 | D | — | — | (F24) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,311.1700 - $1,311.4000. 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. |
| 15 | Common | Common Stock | 2025-12-15 | M | A | 3,900 | $284.97 | 7,500 | D | — | — | |
| 16 | Common | Common Stock | 2025-12-15 | S | D | 80 | $1,282.73 | 7,420 | D | — | — | (F1) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,282.1200 - $1,283.1000. 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. |
| 17 | Common | Common Stock | 2025-12-15 | S | D | 280 | $1,283.70 | 7,140 | D | — | — | (F2) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,283.1700 - $1,284.1000. 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. |
| 18 | Common | Common Stock | 2025-12-15 | S | D | 220 | $1,284.78 | 6,920 | D | — | — | (F3) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,284.1700 - $1,285.1000. 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. |
| 19 | Common | Common Stock | 2025-12-15 | S | D | 220 | $1,285.64 | 6,700 | D | — | — | (F4) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,285.1700 - $1,286.0500. 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 | 2025-12-15 | S | D | 44 | $1,298.11 | 3,984 | D | — | — | (F16) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,297.8400 - $1,298.8300. 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. |
| 21 | Common | Common Stock | 2025-12-15 | S | D | 12 | $1,299.04 | 3,972 | D | — | — | (F17) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,298.9200 - $1,299.6200. 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. |
| 22 | Common | Common Stock | 2025-12-15 | S | D | 25 | $1,300.44 | 3,947 | D | — | — | (F18) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,300.2500 - $1,301.1000. 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. |
| 23 | Common | Common Stock | 2025-12-15 | S | D | 14 | $1,301.78 | 3,933 | D | — | — | (F19) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,301.5200 - $1,302.1200. 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. |
| 24 | Common | Common Stock | 2025-12-15 | S | D | 45 | $1,303.15 | 3,888 | D | — | — | (F20) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,302.7200 - $1,303.5000. 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. |
| 25 | Common | Common Stock | 2025-12-15 | S | D | 60 | $1,304.90 | 3,828 | D | — | — | (F21) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,304.3200 - $1,305.1500. 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. |
| 26 | Common | Common Stock | 2025-12-15 | S | D | 262 | $1,286.70 | 6,438 | D | — | — | (F5) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,286.1700 - $1,287.1600. 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. |
| 27 | Common | Common Stock | 2025-12-15 | S | D | 336 | $1,287.69 | 6,102 | D | — | — | (F6) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,287.1700 - $1,288.1500. 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. |
| 28 | Derivative | Stock Option | 2025-12-15 | M | D | 3,900 | $0.00 | 39,200 | D | $284.97 · 2021-09-30 to 2027-11-08 | 3,900 Common Stock |