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TransDigm Group INC

TDG
Exchange
NYSE
Industry
Aircraft Parts & Auxiliary Equipment, NEC
SEC CIK
0001260221

In the last 90 days, TransDigm Group INC insiders filed 0 open-market purchases and 6 sales; 1,146 institutions reported holding it in 13F filings for Q2 2026, worth $70.0B in total; superinvestors Third Point and Lone Pine Capital hold it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by TransDigm Group INC insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
6 filings
2 insiders, $38.7M in total
Insiders trading
2
Net value
−$38.7M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for TransDigm Group INC, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for TransDigm Group INC
NameTitleLast reported holdingLast filingFilings, past year
Small Robert JDirector5,677Sep 22, 20265
Palmer PeterDirector4,064Sep 21, 20263
Howley W NicholasDirector239Sep 21, 202615
Krasik Irina IgorevnaDirector13Sep 21, 20261
Santana MicheleDirector805Sep 21, 20263
McCullough Gary EDirector993Sep 21, 20263
Hennessy Sean PDirector33,836Sep 21, 20263
Graff MichaelDirector1,717Sep 21, 20264
Cronin Jane M.Director734Sep 21, 20263
Barr DavidDirector32,225Sep 21, 20263
Reiss JoelCo-Chief Operating Officer3,600Sep 16, 202615
Murphy Patrick JosephCo-Chief Operating Officer2,515Feb 25, 20267
Lisman MichaelPresident & CEO3,259Feb 9, 20263
Wynne SarahChief Financial Officer4,894Feb 6, 20262
Stein Kevin MDirector8,158IndirectFeb 3, 202613
Vadiee ArmaniGC, CCO, Secretary–Nov 6, 20251
Valladares JorgeDirector0IndirectMay 14, 20250
Warren Jessica LGC, CCO, Secretary575May 13, 20250
Staer JohnDirector91Mar 14, 20230
Dunn MervinDirector1,562Nov 18, 20220
Laubenthal Raymond FDirector156,595Mar 29, 20220
Henderson Robert SExec.V.P.0IndirectDec 9, 20210
Terrion Halle FineGC, CCO, Secretary–Nov 16, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 2, 2021 (view filing)Jul 11 dayHenderson Robert SExec.V.P.SSale−10.0K$654.67−$6.55M−100.0%0 after9 lots
Jul 16, 2021 (view filing)Jul 151 dayHowley W NicholasExec. Chairman of the BoardSSale−11.5K$639.34−$7.35M−34.0%22.4K after10 lots
Aug 3, 2021 (view filing)Aug 21 dayHenderson Robert SExec.V.P.SSale−10.0K$643.99−$6.44M−100.0%0 after13 lots
Aug 16, 2021 (view filing)Aug 16Same dayHowley W NicholasDirectorSSale−11.5K$601.55−$6.92M−34.8%21.5K after9 lots
Sep 9, 2021 (view filing)Sep 72 daysLisman MichaelChief Financial OfficerPPurchase+850$591.19+$502.5K+58.3%2.31K afterAmended2 lots
Sep 17, 2021 (view filing)Sep 152 daysHowley W NicholasDirectorSSale−11.5K$608.24−$6.99M−34.8%21.5K after12 lots
Oct 18, 2021 (view filing)Oct 153 daysHowley W NicholasDirectorSSale−11.5K$641.27−$7.37M−34.8%21.5K after5 lots
Nov 2, 2021 (view filing)Nov 11 dayHenderson Robert SExec.V.P.SSale−10.0K$627.17−$6.27M−100.0%0 after5 lots
Nov 17, 2021 (view filing)Nov 152 daysHowley W NicholasDirectorSSale−11.5K$649.14−$7.47M−34.8%21.5K after14 lots
Nov 19, 2021 (view filing)Nov 19Same dayCronin Jane M.DirectorPPurchase+300$634.27+$190.3K+1,000.0%330 after
Nov 22, 2021 (view filing)Nov 184 daysStein Kevin MPresident & CEOSSale−40.0K$661.47−$26.5M−96.7%1.35K after6 lots
Dec 2, 2021 (view filing)Dec 2Same dayStaer JohnDirectorPPurchase+13$578.32+$7.52K+100.0%26 after
Dec 9, 2021 (view filing)Feb 24288 daysLateHenderson Robert SExec.V.P.SSale−10.0K$617.30−$6.17M−100.0%0 after12 lots
Dec 17, 2021 (view filing)Dec 152 daysHowley W NicholasDirectorSSale−11.5K$571.72−$6.57M−34.8%21.5K after10 lots
Jan 12, 2022 (view filing)May 27-Jun 15, 2021230 daysLateLaubenthal Raymond FDirectorSSale−10.0K$663.00−$6.63M−5.7%164.6K after3 lots
Jan 19, 2022 (view filing)Jan 181 dayHowley W NicholasDirectorSSale−11.5K$630.77−$7.25M−34.8%21.5K after12 lots
Feb 16, 2022 (view filing)Feb 151 dayHowley W NicholasDirectorSSale−11.5K$646.42−$7.43M−34.8%21.5K after12 lots
Mar 16, 2022 (view filing)Mar 151 dayHowley W NicholasDirectorSSale−11.5K$632.64−$7.28M−34.8%21.5K after15 lots
Mar 23, 2022 (view filing)Mar 221 dayLaubenthal Raymond FDirectorSSale−5.00K$670.00−$3.35M−3.1%156.5K after
Apr 20, 2022 (view filing)Apr 182 daysHowley W NicholasDirectorSSale−11.5K$631.75−$7.27M−34.8%21.5K after11 lots
May 17, 2022 (view filing)May 161 dayHowley W NicholasDirectorSSale−11.5K$556.61−$6.40M−34.8%21.5K after15 lots
May 23, 2022 (view filing)May 194 daysSmall Robert JDirectorPPurchase+19.4K$544.09+$10.6M+11.7%185.1K after12 lots
May 23, 2022 (view filing)May 23Same daySmall Robert JDirectorPPurchase+28.5K$565.00+$16.1M+1.2%2.42M after16 lots
Jun 3, 2022 (view filing)May 1915 daysSmall Robert JDirectorPPurchase+19.4K$544.09+$10.6M+11.7%185.1K afterAmended12 lotsDuplicate filing
Jun 3, 2022 (view filing)May 2311 daysSmall Robert JDirectorPPurchase+28.5K$565.00+$16.1M+1.2%2.42M afterAmended16 lotsDuplicate filing
Jun 16, 2022 (view filing)Jun 151 dayHowley W NicholasDirectorSSale−11.5K$539.63−$6.21M−34.8%21.5K after11 lots
Jul 18, 2022 (view filing)Jul 153 daysHowley W NicholasDirectorSSale−11.5K$540.70−$6.22M−34.8%21.5K after6 lots
Aug 15, 2022 (view filing)Aug 114 daysStein Kevin MPresident & CEOSSale−35.5K$661.68−$23.5M−100.0%0 after11 lots
Aug 16, 2022 (view filing)Aug 151 dayHowley W NicholasDirectorSSale−11.5K$675.31−$7.77M−34.8%21.5K after7 lots
Aug 16, 2022 (view filing)Aug 151 dayHennessy Sean PDirectorSSale−4.48K$678.14−$3.04M−11.7%33.9K after2 lots
Aug 17, 2022 (view filing)Aug 17Same dayWynne SarahChief Accounting OfficerSSale−2.25K$670.65−$1.51M−78.9%600 after
Aug 30, 2022 (view filing)Aug 264 daysCronin Jane M.DirectorPPurchase+8.62$643.87+$5.55K+2.2%396.62 after
Sep 8, 2022 (view filing)Sep 71 dayStaer JohnDirectorSSale−3.65K$604.27−$2.21M−97.6%91 after3 lots
Sep 19, 2022 (view filing)Sep 154 daysHowley W NicholasDirectorSSale−11.5K$592.97−$6.82M−34.8%21.5K after14 lots
Oct 19, 2022 (view filing)Oct 172 daysHowley W NicholasDirectorSSale−11.5K$528.07−$6.07M−34.8%21.5K after9 lots
Nov 17, 2022 (view filing)Nov 152 daysHowley W NicholasDirectorSSale−6.50K$620.35−$4.03M−23.2%21.5K after10 lots
Nov 18, 2022 (view filing)Nov 162 daysDunn MervinDirectorSSale−4.48K$612.74−$2.74M−74.1%1.56K after3 lots
Dec 19, 2022 (view filing)Dec 154 daysHowley W NicholasDirectorSSale−6.51K$614.49−$4.00M−23.2%21.5K afterFrom original10 lots
Jan 13, 2023 (view filing)Jan 112 daysValladares JorgeCOOSSale−20.0K$667.41−$13.3M−64.5%11.0K after10 lots
Jan 18, 2023 (view filing)Jan 171 dayHowley W NicholasDirectorSSale−6.50K$685.24−$4.45M−23.2%21.5K after7 lots
Feb 13, 2023 (view filing)Feb 9-104 daysSmall Robert JDirectorSSale−254.8K$739.04−$188.3M−14.1%1.56M after28 lots
Feb 13, 2023 (view filing)Feb 10-133 daysSmall Robert JDirectorSSale−151.6K$736.32−$111.6M−9.7%1.41M after22 lots
Feb 13, 2023 (view filing)Feb 94 daysHowley W NicholasDirectorSSale−9.70K$753.70−$7.31M−30.7%21.8K afterFrom original11 lots
Feb 13, 2023 (view filing)Feb 94 daysStein Kevin MPresident & CEOSSale−36.6K$749.14−$27.4M−94.4%2.17K afterFrom original8 lots
Feb 13, 2023 (view filing)Feb 94 daysValladares JorgeCOOSSale−31.2K$755.64−$23.6M−72.5%11.8K afterFrom original11 lots
Feb 14, 2023 (view filing)Feb 104 daysStaer JohnDirectorSSale−4.60K$731.30−$3.36M−96.0%191 afterFrom original3 lots
Feb 17, 2023 (view filing)Feb 152 daysHowley W NicholasDirectorSSale−6.50K$754.78−$4.91M−23.2%21.5K after8 lots
Feb 21, 2023 (view filing)Feb 165 daysLisman MichaelChief Financial OfficerSSale−10.9K$749.39−$8.19M−74.3%3.78K afterFrom original4 lots
Feb 28, 2023 (view filing)Feb 244 daysSmall Robert JDirectorSSale−4.44K$739.22−$3.28M−7.2%57.6K after6 lots
Mar 14, 2023 (view filing)Feb 933 daysHowley W NicholasDirectorSSale−300$760.70−$228.2K−1.4%21.5K afterAmended