Every Form 4 that TransDigm Group Incorporated (TDG) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow TDG and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full TDG filings page.
Joel Reiss, TransDigm Group's Co-Chief Operating Officer, exercised options to acquire 4,100 common shares at an exercise price of $284.97 per share on October 15, 2026, and sold 4,100 shares in 21 transactions that day. The reported weighted-average prices for individual sales ranged from $1,112.2650 to $1,135.9542 per share; footnotes give execution-price ranges spanning $1,111.9600 to $1,136.2400. The transactions were under a Rule 10b5-1 plan.
TransDigm Group INC (symbol: TDG) is the issuer of record for a Form 4/A filing submitted to the SEC. SMALL ROBERT J reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group INC director Robert J. Small filed an amended ownership report that records an internal restructuring entry on September 18, 2026 and corrects prior carry-over balances. He now holds 5,677 TransDigm common shares directly, plus 60,246 through family trusts, 366,142 through Stockbridge Fund, L.P., and 68,139 through Stockbridge Partners LLC, with the amendment clarifying that the Stockbridge Fund position is 366,142 shares rather than 366,141.
TransDigm Group INC (TDG) reported that director Peter Palmer acquired 34 shares of common stock on September 18, 2026 as a grant in lieu of his semi-annual director fee. The stock was valued at $1,085 per share based on fair market value under the company’s Director Share Plan, bringing his direct holdings to 4,064 shares. No Rule 10b5-1 trading plan is reported for this transaction.
TransDigm Group INC (symbol: TDG) is the issuer of record for a Form 4 filing submitted to the SEC. Howley W Nicholas reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group INC (TDG) director W. Nicholas Howley received a grant of 126 shares of common stock on September 18, 2026, at a stated value of $1,085 per share, as stock in lieu of his semi-annual director fee under the Director Share Plan. Following this grant, he holds 239 shares directly, plus indirect holdings reported as 8,262 shares through The Howley Family Foundation and 21,547.513 shares through the W. Nicholas Howley Family Trust. No transactions were reported under a Rule 10b5-1 trading plan.
TransDigm Group INC (TDG) reported that director Irina Igorevna Krasik acquired 13 shares of common stock on September 18, 2026 through a grant. The shares were received at a fair market value of $1,085.00 per share in lieu of a semi-annual director fee under the Director Share Plan, resulting in direct ownership of 13 shares.
TransDigm Group INC (TDG) director Robert J. Small reported an acquisition of 52 shares of Common Stock on September 18, 2026, as a grant/award received in stock in lieu of his semi-annual director fee under the company’s Director Share Plan at a reported value of $1,085 per share. After this award, he holds 5,677 shares directly, plus indirect holdings reported as 60,246 shares by family trusts, 366,141 shares by Stockbridge Fund, L.P., and 68,139 shares by Stockbridge Partners LLC. No Rule 10b5-1 trading plan is reported for this transaction.
TransDigm Group INC (TDG) reported that director Michele Santana acquired 34 shares of common stock on September 18, 2026, as a grant or award valued at $1,085.00 per share. The shares were received as stock in lieu of a semi-annual director fee under the Director Share Plan, bringing her direct holdings to 805 shares.
TransDigm Group INC (symbol: TDG) is the issuer of record for a Form 4 filing submitted to the SEC. MCCULLOUGH GARY E reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group INC (TDG) reported that director Gary E. McCullough received a grant of 41 shares of common stock on September 18, 2026. The shares were valued at $1,085.00 per share and were issued in lieu of a semi-annual director fee under the company’s Director Share Plan, bringing his direct holdings to 993 shares.
TransDigm Group INC (symbol: TDG) is the issuer of record for a Form 4 filing submitted to the SEC. HENNESSY SEAN P reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group INC (TDG) reported that director Sean P. Hennessy received an award of 46 shares of Common Stock on September 18, 2026. The shares were issued as stock in lieu of payment of a semi-annual director fee, based on fair market value under the company’s Director Share Plan.
Following this equity award, Hennessy directly holds 33,836.09 shares of TransDigm common stock. No transactions in this filing were reported as made under a Rule 10b5-1 trading plan.
TransDigm Group INC (symbol: TDG) is the issuer of record for a Form 4 filing submitted to the SEC. Graff Michael reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group INC (TDG) director Michael Graff received a grant of 34 shares of common stock on September 18, 2026, valued at $1,085 per share, as stock in lieu of a semi-annual director fee based on fair market value under the Director Share Plan. Following this award, he holds 1,717 shares directly, 5,096 shares indirectly through The 2012 Carol Ostrow GST Trust created by his spouse for their children, and 7,000 shares indirectly through additional children’s trusts where he serves as trustee. No Rule 10b5-1 trading plan is reported.
TransDigm Group INC (symbol: TDG) is the issuer of record for a Form 4 filing submitted to the SEC. CRONIN JANE M. reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group INC (TDG) reported that director Jane M. Cronin received a grant of 34 shares of Common Stock on September 18, 2026, at a reported fair market value of $1,085.00 per share. The shares were received in lieu of a semi-annual director fee under the company’s Director Share Plan, and her directly held stake increased to 733.62 shares. No Rule 10b5-1 trading plan is reported for this transaction.
TransDigm Group INC (TDG) reported that director David Barr acquired 46 shares of common stock on September 18, 2026, as a grant in lieu of his semi-annual director fee. The shares were valued at $1,085.00 per share based on fair market value under the company’s Director Share Plan, bringing his direct holdings to 32,225 shares.
TransDigm Group INC (TDG) reported that Co-Chief Operating Officer Joel Reiss exercised options for 3,900 shares of common stock on September 15, 2026 at an exercise price of $284.97 per share and sold 3,900 shares in multiple same-day transactions at weighted-average prices around $1,083–$1,119 per share. The filing indicates these trades were made pursuant to a Rule 10b5-1 trading plan.
TransDigm Group INC (TDG) director W. Nicholas Howley, through the W. Nicholas Howley Family Trust, exercised 10,132 stock options on August 18, 2026 at an exercise price of $66.47 per share, acquiring 10,132 shares of common stock. The trust then sold 10,132 TDG shares in multiple open-market transactions on the same date at weighted-average prices generally around $1,225–$1,241 per share. Following the option exercise, the trust reports 1,700 stock options remaining from this grant. The filing indicates these transactions were effected pursuant to a Rule 10b5-1 trading plan.
For TransDigm Group INC (TDG), Co-Chief Operating Officer Joel Reiss reported an option exercise and related share sales. On August 17, 2026 he exercised 3,900 stock options at a strike price of $284.97 per share, acquiring 3,900 shares of common stock. That same day he sold 3,900 common shares in multiple open-market transactions at weighted-average prices ranging from about $1,232.28 to $1,253.55 per share. Following the exercise, he held 8,000 stock options for TransDigm common stock. The filing indicates these transactions were made under a Rule 10b5-1 trading plan.
TransDigm Group executive Joel Reiss, Co-Chief Operating Officer, reported exercising stock options covering 3,900 shares of common stock on July 15, 2026 at an exercise price of $284.97 per share, leaving 11,900 options outstanding. The amended filing corrects the coding of this derivative transaction from an acquisition to a disposition and indicates it was effected under a Rule 10b5-1 trading plan.
TransDigm Group director W. Nicholas Howley reported that his family trust exercised 10,132 stock options for common stock on 2026-07-20 at an exercise price of $66.4700 per share, leaving 11,832 options indirectly held. The trust received 10,132 common shares, then sold 10,132 shares in multiple sale transactions, including 570 shares at $1,210.3242 and 440 shares at $1,224.1377 per share. The filing indicates these transactions were executed under a Rule 10b5-1 trading plan.
TransDigm Group’s Co-Chief Operating Officer Joel Reiss reported selling 414 shares of common stock on July 15, 2026 in multiple open-market or private transactions at prices between $1,229.6600 and $1,233.3800 per share, pursuant to a Rule 10b5-1 trading plan.
TransDigm Group Co-Chief Operating Officer Joel Reiss exercised stock options for 3,900 common shares at $284.97 per share and sold 3,486 shares of common stock on July 15, 2026, in multiple open market or private transactions carried out under a Rule 10b5-1 trading plan.
After these transactions, he directly holds 4,014 TransDigm common shares and 19,700 stock options with a $284.97 exercise price expiring on November 8, 2027.
TransDigm Group director W. Nicholas Howley reported an amended insider filing reflecting an “other” type transaction with no change in share ownership. The filing shows 0 common shares were transacted and 21,547.513 shares are held indirectly through the W. Nicholas Howley Family Trust u/a/d 4/23/99.
TransDigm Group director W. Nicholas Howley, through his family trust, reported an exercise-and-sell transaction in company stock. On June 18, 2026, the W. Nicholas Howley Family Trust exercised 10,132 stock options at an exercise price of $66.47 per share and acquired the same number of common shares.
The trust then sold 10,132 shares of TransDigm common stock in multiple open-market trades, at prices ranging from approximately $1,305 to $1,337.06 per share. Following these transactions, the trust’s indirect holdings in TransDigm common stock were 21,547.513 shares.
TransDigm Group INC director W. Nicholas Howley reported coordinated option exercises and share sales through his family trust. On June 18, 2026, the W. Nicholas Howley Family Trust u/a/d 4/23/99 exercised stock options for 10,132 shares of TransDigm common stock at an exercise price of $66.47 per share and sold 10,132 common shares in multiple open-market transactions.
The reported sale prices ranged around $1,305–$1,337 per share, with each line item giving a weighted average price for trades within a specific band. Following these transactions, the trust indirectly holds 21,547.513 shares of TransDigm common stock.
TransDigm Group director W. Nicholas Howley, through the W. Nicholas Howley Family Trust, reported an option exercise and related stock sales in TransDigm Group INC common stock. On June 18, the trust exercised options to acquire 10,132 shares at an exercise price of $66.47 per share.
That same day, the trust executed multiple open‑market sales totaling 10,132 shares of common stock at prices generally around $1,305 to $1,337 per share, as detailed in the reported weighted‑average price ranges. The transactions together represent an exercise‑and‑sell pattern carried out through the family trust’s indirect ownership.
TransDigm Group reports that Co-Chief Operating Officer Joel Reiss exercised 3,900 stock options at $284.9700 per share into common stock on June 15, 2026, then sold 3,900 common shares in multiple trades at prices within $1,268.6100–$1,288.0400 per share. Following these transactions, he directly holds 3,600 common shares.
TransDigm Group director W. Nicholas Howley, through the W. Nicholas Howley Family Trust u/a/d 4/23/99, reported an exercise-and-sell transaction in TransDigm common stock. On 2026-05-18, the trust exercised stock options for 10,132 shares at an exercise price of $66.47 per share and sold 10,132 common shares in a series of open-market trades at prices around $1,160–$1,189 per share. Following these transactions, the filing shows indirect ownership of 21,547.513 TransDigm common shares by the trust.
TransDigm Group INC Co-Chief Operating Officer Joel Reiss exercised 3,900 stock options at a strike price of $284.97 per share into common stock on May 15, 2026, then sold 3,900 common shares in 27 reported trades at weighted-average prices, with footnotes noting execution ranges from about $1,143.72 to $1,175.31 per share under a Rule 10b5-1 trading plan. Following these transactions, he directly holds 3,600 shares of TransDigm common stock.
TransDigm Group Inc. director W. Nicholas Howley, through the W. Nicholas Howley Family Trust u/a/d 4/23/99, reported an exercise-and-sell sequence in TransDigm common stock. The trust exercised stock options for 10,132 shares at exercise prices of $66.47 and $50.92 per share.
On the same date, the trust completed multiple open-market sales totaling 10,132 shares at per-share prices generally around $1,260–$1,272, reported as weighted averages for several price ranges. Following these transactions, the trust indirectly held 21,547.513 shares of TransDigm common stock.
TransDigm Group’s Co-Chief Operating Officer Joel Reiss exercised stock options for 3,900 shares of common stock at an exercise price of $284.9700 per share and on the same date sold 3,900 shares in multiple open-market transactions at prices ranging from $1,273.8500 to $1,294.8000. Following these transactions, he holds 3,600 shares of TransDigm common stock directly.
Palmer Peter reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group director Peter Palmer received 30 shares of Common Stock as compensation, valued at $1,214.66 per share, in connection with his semi-annual director fee under the Director Share Plan. Following this stock-in-lieu-of-cash award, he directly holds 4,030 TransDigm Group shares.
TransDigm Group director Jane M. Cronin received a stock grant as board compensation. She acquired 30 shares of TransDigm common stock on March 20, 2026 at a fair market value of $1,214.66 per share, issued in lieu of her semi-annual director fee under the Director Share Plan.
Following this grant, Cronin directly holds 699.62 shares of TransDigm common stock. This is a routine equity compensation award rather than an open‑market share purchase or sale.
HENNESSY SEAN P reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group director Sean P. Hennessy received 41 shares of common stock as compensation, valued at $1,214.66 per share. This was a stock grant rather than an open-market purchase.
The shares were issued in lieu of his semi-annual director fee under the company’s Director Share Plan, bringing his direct holdings to 33,790.09 shares.
MCCULLOUGH GARY E reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group Inc. director Gary E. McCullough received 37 shares of common stock as a stock-based director fee. The shares were valued at $1,214.66 per share, reflecting payment of a semi-annual board fee in stock rather than cash under the Director Share Plan. Following this award, he directly holds 952 common shares, indicating a relatively small, routine compensation-related increase in his ownership rather than an open-market purchase.
Santana Michele reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group INC director Michele Santana received 30 shares of Common Stock as a compensation award. The shares were valued at $1,214.66 each and were issued in lieu of a semi-annual director cash fee, based on fair market value under the company’s Director Share Plan. After this grant, Santana directly holds 771 TransDigm shares, reflecting routine equity-based board compensation rather than an open-market purchase.
BARR DAVID reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group director David Barr received 41 shares of Common Stock as a grant. The shares were valued at $1,214.66 per share and were issued on March 20, 2026. After this award, Barr directly owns 32,179 shares. A footnote explains the shares were received in lieu of a semi-annual director fee, based on fair market value under the company’s Director Share Plan.
Graff Michael reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group director Michael Graff received 30 shares of Common Stock as a stock grant on March 20, 2026. The shares were valued at $1,214.66 per share and were issued in lieu of his semi-annual director fee under the company’s Director Share Plan. Following this grant, he holds 1,683 shares directly, plus additional indirect holdings held by family trusts for the benefit of his children.
Howley W Nicholas reported acquisition or exercise transactions in this Form 4 filing.
TransDigm Group director W. Nicholas Howley received 113 shares of Common Stock as a grant on March 20, 2026. The shares were issued at a fair market value of $1,214.66 per share, in lieu of a semi-annual director fee under the Director Share Plan.
After this award, Howley holds 113 shares directly. He also has indirect beneficial holdings of 8,262 shares through The Howley Family Foundation and 21,547.513 shares through the W. Nicholas Howley Family Trust u/a/d 4/23/99, as reported in this filing.
TransDigm Group director W. Nicholas Howley, through the W. Nicholas Howley Family Trust, reported an option exercise and related share sales. The trust exercised stock options for 10,132 shares of TransDigm common stock at an exercise price of $50.9200 per share, converting them into 10,132 common shares.
The trust then sold 10,132 common shares in multiple open-market transactions on the same date at prices ranging from about $1,205.4151 to $1,231.3415 per share. Following these transactions, the trust continues to hold 21,547.513 TransDigm common shares indirectly attributed to Howley.
TransDigm Group’s Co‑Chief Operating Officer Joel Reiss exercised stock options and then sold shares in the open market. He exercised options for 3,900 shares of common stock at an exercise price of $284.97 per share and acquired the underlying shares.
On the same date, he sold 3,900 common shares in a series of transactions at prices around $1,222.87 to $1,250.65 per share, leaving him with 3,600 common shares held directly. Following the option exercise, he also continues to hold 27,500 stock options scheduled to expire on November 8, 2027. This filing reflects a routine exercise‑and‑sell transaction by a senior executive rather than a change in company operations.
TransDigm Group Inc director Robert J. Small reported an indirect open‑market purchase by Stockbridge Fund, L.P. of 1 share of common stock at $1,285.00 per share on February 25, 2026. The filing notes this purchase was matchable under Section 16(b) with a prior sale of 1 share at $1,335.72 per share by an entity in which he has a pecuniary interest, and he paid the issuer the difference between the two prices. Following the transactions reported, indirect holdings include 366,142 shares held by Stockbridge Fund, L.P., 68,139 shares held by Stockbridge Partners LLC, and 60,246 shares held by certain family trusts, plus 5,625 shares held directly.
TransDigm Group’s Co-Chief Operating Officer Patrick Joseph Murphy exercised stock options and acquired common shares. On February 24, 2026, he exercised options for 1,160 shares and 300 shares of TransDigm common stock.
The 1,160 shares were acquired at $269.42 per share and the 300 shares at $347.17 per share through derivative exercises coded as “M.” Following these transactions, Murphy directly owned 2,515 shares of TransDigm common stock.
TransDigm Group Inc. reported insider activity involving a family trust associated with director W. Nicholas Howley. On February 18, 2026, the W. Nicholas Howley Family Trust u/a/d 4/23/99 sold 10,168 shares of TransDigm common stock in a series of open-market transactions. The weighted-average sale prices ranged from about $1,298.96 to $1,312.24 per share across the reported trades.
On the same date, the trust exercised stock options covering 10,168 shares of common stock at an exercise price of $50.92 per share, with the exercise price adjusted for dividends declared since August 1, 2022. After these transactions, the trust held 30,765.513 shares of common stock and 18,040 stock options indirectly.
TransDigm Group Co‑Chief Operating Officer Joel Reiss exercised stock options for 3,900 shares of common stock at an exercise price of $284.97 per share and received the underlying shares on February 17, 2026.
On the same day, he sold 3,900 TransDigm common shares in multiple open‑market transactions at prices generally between about $1,279 and $1,305 per share. After these trades, Reiss directly holds 3,600 shares of common stock and 31,400 stock options.
TransDigm Group president and CEO Michael Lisman bought 950 shares of TransDigm common stock on February 6, 2026 at $1,284.2608 per share, increasing his directly held stake to 3,259 shares. He also beneficially owns 1,954 shares indirectly through the Michael Lisman Declaration of Trust dated January 31, 2023.
A note clarifies that a Form 4 filed on November 14, 2025 mistakenly duplicated the 1,954 trust shares, and confirms that 1,954 is the correct number of shares held indirectly in the trust.
TransDigm Group’s Chief Financial Officer, Sarah Wynne, reported an option exercise and related share acquisition. On 02/05/2026, she exercised stock options for 1,494 shares of common stock at $559.78 per share. Following the transaction, she directly owned 4,894 shares of common stock and 3,506 stock options.
TransDigm Group director Kevin M. Stein, through Fortuna Trust dated June 1, 2018, reported a series of open-market sales of TransDigm common stock on February 2, 2026. The trust sold multiple blocks of shares at average prices ranging from $1,431.4599 to $1,440.4800 per share.
Individual transactions included sales such as 3,093 shares at an average price of $1,433.4578 and 1,497 shares at $1,436.4265. Following these sales, Fortuna Trust was reported as indirectly holding 8,158 TransDigm common shares.
TransDigm Group director-related trust reports option exercises and share sales. On February 2, 2026, Fortuna Trust dated June 1, 2018, an entity associated with director Kevin M. Stein, exercised stock options for 25,000 shares at $341.28 and 23,000 shares at $342.31.
The trust then executed a series of open‑market sales of TransDigm common stock at prices mainly around $1,404–$1,431. Following these transactions, the trust’s indirectly held TransDigm common stock position reported in this filing was 19,233 shares.
TransDigm Group Co-Chief Operating Officer Patrick Joseph Murphy reported an option exercise and share sale. On February 2, 2026, he exercised a stock option for 290 shares of Common Stock at an exercise price of $269.42 per share and acquired these shares.
On the same date, he sold 290 shares of Common Stock at a price of $1,430.1 per share. After these transactions, he beneficially owned 1,055 shares of Common Stock directly and 1,160 stock options directly.
TransDigm Group’s Co-Chief Operating Officer Joel Reiss reported an insider transaction involving stock options and common shares on January 15, 2026. He exercised 3,900 stock options at an exercise price of $284.97 per share, receiving the same number of TransDigm common shares. On the same date, he sold common stock in a series of small trades, each reported with an average weighted sale price, at levels ranging from about $1,420 to $1,439 per share. After these transactions, he directly owned 3,600 shares of TransDigm common stock and 35,300 stock options. The footnotes clarify that each reported sale price is a weighted average, with full price breakdowns available to regulators or shareholders on request.
TransDigm Group director Kevin M. Stein, through Fortuna Trust dated June 1, 2018, reported linked option and share transactions dated January 14, 2026. The trust exercised 7,627 stock options for TransDigm common stock at an exercise price of $342.31 per share, receiving 7,627 shares.
The trust then sold TransDigm common shares in three weighted-average blocks: 2,141 shares at $1,405.6379, 3,964 shares at $1,406.4099, and 1,522 shares at $1,407.3422. After these trades, the trust held 8,158 TransDigm common shares and 43,000 stock options indirectly for the reporting person.
TransDigm Group director Kevin M. Stein, through the Fortuna Trust dated June 1, 2018, reported an option exercise and related stock sales. On January 8, 2026, the trust exercised a stock option for 17,373 shares of common stock at an exercise price of $342.31 per share, with the price adjusted for dividends declared since August 1, 2022. The same day, the trust sold a total of 17,373 TransDigm Group shares in several market transactions at average prices ranging from about $1,405.3006 to $1,413.17 per share. After these transactions, the trust held 8,158 shares of TransDigm common stock and 50,627 stock options, all reported as indirectly owned.