Form 4 for TDG TransDigm Group
Accepted 2026-03-19 00:00:00 ET · period of report 2026-03-18 · accession 0001193125-26-116079 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DMTI | 2026-03-19 | 2026-03-18 | TDG | Howley W Nicholas | Dir | S - Sale+OE | $1,213.05 | -10.1K | 27.9K | -27% | -$12.29M |
| DTI | 2026-03-19 | 2026-03-18 | TDG | Howley W Nicholas | Dir | M - OptEx | $50.92 | +10.1K | 31.7K | +47% | +$515.9K |
| DTI | 2026-03-19 | 2026-03-18 | TDG | Howley W Nicholas | Dir | M - OptEx | $0.00 | -10.1K | 7,908 | -56% | $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 | 2026-03-18 | S | D | 1,182 | $1,211.46 | 26,751.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F8) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,211.0150 - $1,212.0000. 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 | 2026-03-18 | S | D | 2,025 | $1,212.57 | 24,726.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F9) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,212.0350 - $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 |
| 3 | Common | Common Stock | 2026-03-18 | S | D | 1,159 | $1,213.45 | 23,567.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F10) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,213.0400 - $1,214.0150. 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 | 2026-03-18 | S | D | 552 | $1,214.40 | 23,015.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F11) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,214.0700 - $1,215.0550. 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 | 2026-03-18 | S | D | 125 | $1,215.51 | 22,890.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F12) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,215.1175 - $1,215.5300. 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 |
| 6 | Common | Common Stock | 2026-03-18 | S | D | 188 | $1,216.63 | 22,702.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F13) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,216.3200 - $1,216.9800. 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 | 2026-03-18 | S | D | 80 | $1,217.57 | 22,622.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F14) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,217.4800 - $1,217.6300. 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 | 2026-03-18 | S | D | 49 | $1,218.80 | 22,573.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F15) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,218.7800 - $1,218.8400. 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 | 2026-03-18 | S | D | 90 | $1,220.61 | 22,483.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F16) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,220.1850 - $1,220.8200. 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 | 2026-03-18 | S | D | 40 | $1,221.44 | 22,443.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F17) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,221.2350 - $1,222.0500. 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 |
| 11 | Common | Common Stock | 2026-03-18 | S | D | 29 | $1,222.38 | 22,414.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F18) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,222.2900 - $1,222.4200. 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 |
| 12 | Common | Common Stock | 2026-03-18 | S | D | 10 | $1,223.80 | 22,404.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | |
| 13 | Common | Common Stock | 2026-03-18 | S | D | 70 | $1,225.10 | 22,334.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F19) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,224.7900 - $1,225.2200. 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 |
| 14 | Common | Common Stock | 2026-03-18 | S | D | 38 | $1,226.44 | 22,296.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | |
| 15 | Common | Common Stock | 2026-03-18 | S | D | 120 | $1,228.44 | 22,176.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F20) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,228.1150 - $1,228.5250. 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 | 2026-03-18 | S | D | 521 | $1,229.51 | 21,655.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F21) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,229.1600 - $1,230.0700. 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 | 2026-03-18 | S | D | 108 | $1,231.34 | 21,547.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F22) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,230.9050 - $1,231.7350. 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 | 2026-03-18 | S | D | 91 | $1,207.38 | 30,879.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F4) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,206.8700 - $1,207.8300. 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 |
| 19 | Common | Common Stock | 2026-03-18 | S | D | 507 | $1,206.05 | 30,970.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F3) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,205.7750 - $1,206.7400. 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 | 2026-03-18 | S | D | 202 | $1,205.42 | 31,477.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F2) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,204.7700 - $1,205.7375. 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 | 2026-03-18 | S | D | 324 | $1,208.56 | 30,555.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F5) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,207.9700 - $1,208.8250. 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 | 2026-03-18 | S | D | 1,246 | $1,209.52 | 29,309.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F6) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,209.0000 - $1,209.9450. 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 | 2026-03-18 | S | D | 1,376 | $1,210.39 | 27,933.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F7) Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,210.0100 - $1,211.0000. 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 | 2026-03-18 | M | A | 10,132 | $50.92 | 31,679.51 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | — | — | (F1) The exercise price has been adjusted for dividends declared since August 1, 2022. |
| 25 | Derivative | Stock Option | 2026-03-18 | M | D | 10,132 | $0.00 | 7,908 | I W. Nicholas Howley Family Trust u/a/d 4/23/99 | $50.92 · 2017-09-30 to 2026-11-10 | 10,132 Common Stock | (F1) The exercise price has been adjusted for dividends declared since August 1, 2022. |