STOCK TITAN

TransDigm (NYSE: TDG) trust sells 10,132 shares after option exercise

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

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.

Positive

  • None.

Negative

  • None.
Insider Howley W Nicholas
Role Director
Sold 10,132 shs ($12.53M)
Approx. gross sale proceeds $12.53M
Approx. exercise cost $673K
Approx. pre-tax spread $11.85M
Type Security Shares Price Value
Exercise Stock Option F1 10,132 $0.00 $0.00
Exercise Common Stock F1 10,132 $66.47 $673K
Sale Common Stock F2 204 $1,225.6023 $250K
Sale Common Stock F3 70 $1,227.6221 $86K
Sale Common Stock F4 290 $1,229.0948 $356K
Sale Common Stock F5 570 $1,230.0189 $701K
Sale Common Stock F6 830 $1,231.1187 $1.02M
Sale Common Stock F7 1,055 $1,232.0139 $1.30M
Sale Common Stock F8 450 $1,233.3049 $555K
Sale Common Stock F9 270 $1,234.6883 $333K
Sale Common Stock F10 140 $1,236.1214 $173K
Sale Common Stock F11 250 $1,236.8948 $309K
Sale Common Stock F12 520 $1,238.0823 $644K
Sale Common Stock F13 3,980 $1,239.1746 $4.93M
Sale Common Stock F14 1,313 $1,240.4217 $1.63M
Sale Common Stock F15 190 $1,241.1389 $236K
Holdings After Transaction: Stock Option — 1,700 shares (Indirect, W. Nicholas Howley Family Trust u/a/d 4/23/99); Common Stock — 21,547.513 shares (Indirect, W. Nicholas Howley Family Trust u/a/d 4/23/99)
Footnotes (15)
  1. F1. The exercise price has been adjusted for dividends declared since August 1, 2022.
  2. F10. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,235.4300 - $1,236.6700. 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.
  3. F11. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,236.7100 - $1,237.4600. 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.
  4. F12. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,237.7100 - $1,238.4200. 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.
  5. F13. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,238.8700 - $1,239.8500. 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. F14. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,239.8700 - $1,240.7500. 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. F15. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,240.9200 - $1,241.4600. 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.
  8. F2. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,225.1750 - $1,226.0000. 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.
  9. F3. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,227.1550 - $1,227.9700. 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. F4. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,228.4900 - $1,229.4800. 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. F5. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,229.4900 - $1,230.1400. 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. F6. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,230.6000 - $1,231.5800. 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.
  13. F7. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,231.6100 - $1,232.5100. 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. F8. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,232.8900 - $1,233.6700. 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.
  15. F9. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,234.4000 - $1,235.2100. 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.
Options Exercised 10,132 shares Stock options exercised into common stock on August 18, 2026
Exercise Price $66.47 per share Exercise price of stock options, adjusted for dividends since August 1, 2022
Shares Sold 10,132 shares Total TDG common shares sold in multiple open-market trades on August 18, 2026
Lowest Reported Sale Price $1,225.6023 per share Weighted-average price on one reported sale tranche of TDG common stock
Highest Reported Sale Price $1,241.1389 per share Weighted-average price on another reported sale tranche of TDG common stock
Remaining Options 1,700 options Stock options remaining from this grant after the August 18, 2026 exercise
Option Expiration November 8, 2027 Expiration date for the stock option grant that was partially exercised
exercise price financial
"The exercise price has been adjusted for dividends declared since August 1, 2022"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
average weighted price financial
"Price reported constitutes the average weighted price of shares sold"
derivative security financial
"Exercise or conversion of derivative security"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

FAQ

What insider transactions did TDG director W. Nicholas Howley report on August 18, 2026?

On August 18, 2026, a family trust associated with director W. Nicholas Howley exercised 10,132 stock options in TransDigm Group INC (TDG) and sold 10,132 common shares in multiple open-market trades at weighted-average prices around $1,225–$1,241 per share.

At what price were the TDG stock options exercised in the latest Form 4?

The reported TransDigm Group INC (TDG) stock options were exercised at an exercise price of $66.47 per share. A footnote states this exercise price has been adjusted for dividends declared since August 1, 2022, reflecting standard anti-dilution adjustments on the original option grant.

What sale prices were reported for the TDG shares sold by the Howley family trust?

The TransDigm Group INC (TDG) shares were sold at weighted-average prices per trade ranging roughly from $1,225.60 to $1,241.14 per share. Footnotes explain that individual shares within each trade were sold at varying prices within specified ranges.

Does the Form 4 indicate remaining TDG options for the Howley family trust after these transactions?

Yes. After exercising options for 10,132 shares, the Form 4 reports the Howley family trust holding 1,700 stock options from this option grant. These remaining options retain the $66.47 per-share exercise price and the same stated expiration date of November 8, 2027.

Were the reported TDG insider transactions made under a Rule 10b5-1 trading plan?

The filing indicates the transactions were effected pursuant to a Rule 10b5-1 trading plan. Such plans pre-establish trade parameters for insiders, so the timing of these TDG trades reflects the plan’s terms rather than discretionary, real-time trading decisions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Howley W Nicholas

(Last)(First)(Middle)
1350 EUCLID AVE
SUITE 1600

(Street)
CLEVELAND OHIO 44115

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
TransDigm Group INC [ TDG ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/18/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/18/2026M10,132A$66.47(1)31,679.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S204D$1,225.6023(2)31,475.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S70D$1,227.6221(3)31,405.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S290D$1,229.0948(4)31,115.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S570D$1,230.0189(5)30,545.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S830D$1,231.1187(6)29,715.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S1,055D$1,232.0139(7)28,660.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S450D$1,233.3049(8)28,210.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S270D$1,234.6883(9)27,940.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S140D$1,236.1214(10)27,800.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S250D$1,236.8948(11)27,550.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S520D$1,238.0823(12)27,030.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S3,980D$1,239.1746(13)23,050.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S1,313D$1,240.4217(14)21,737.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Common Stock08/18/2026S190D$1,241.1389(15)21,547.513IW. Nicholas Howley Family Trust u/a/d 4/23/99
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option$66.47(1)08/18/2026M10,13209/30/201811/08/2027Common Stock10,132$0.001,700IW. Nicholas Howley Family Trust u/a/d 4/23/99
Explanation of Responses:
1. The exercise price has been adjusted for dividends declared since August 1, 2022.
2. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,225.1750 - $1,226.0000. 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.
3. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,227.1550 - $1,227.9700. 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. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,228.4900 - $1,229.4800. 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. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,229.4900 - $1,230.1400. 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. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,230.6000 - $1,231.5800. 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.
7. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,231.6100 - $1,232.5100. 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. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,232.8900 - $1,233.6700. 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.
9. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,234.4000 - $1,235.2100. 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. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,235.4300 - $1,236.6700. 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.
11. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,236.7100 - $1,237.4600. 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.
12. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,237.7100 - $1,238.4200. 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.
13. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,238.8700 - $1,239.8500. 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. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,239.8700 - $1,240.7500. 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. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,240.9200 - $1,241.4600. 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.
Remarks:
/s/ Rachel L. Quinlan as attorney in fact for W. Nicholas Howley08/19/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)