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Company profile

TransDigm Group INC Insider Trading

TDG

Every SEC Form 4 insider trading filing for TransDigm Group INC (TDG) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
NYSE
Sector
Aircraft Parts & Auxiliary Equipment, NEC
CIK
0001260221
Filings
262
Insiders
17
Last filing
2026-09-15
SEC EDGAR ↗Yahoo Finance ↗Finviz ↗Stock Analysis ↗

Activity summary

Recent insider activity is bearish. Over the last 30 days, insiders net sold $3.2M across 27 transactions, with 2 offsetting purchases.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. TransDigm Group INC insiders were net sellers in every quarter shown.

PurchasesSales
Q4 23$529.8MQ1 24Q2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $529.8M.

90 day insight

Over the last 90 days, TransDigm Group INC insiders bought $1.8M (5 transactions) and sold $17.0M (45 transactions).

  • Most active insider: Joel Reiss with 34 transactions totaling $5.6M.
  • Largest single sale: $4.9M by W Nicholas Howley on Aug 18, 2026.

Activity skews bearish — sales outpace buys.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValueReturn
Sep 15, 2026Joel ReissTDG
Sale
274$1102.49$302KPending
Sep 15, 2026Joel ReissTDG
Sale
310$1082.96$336KPending
Sep 15, 2026Joel ReissTDG
Sale
210$1103.44$232KPending
Sep 15, 2026Joel ReissTDG
Sale
20$1113.37$22KPending
Sep 15, 2026Joel ReissTDG
Sale
70$1090.06$76KPending

45 more transactions hidden

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Top insiders

By total value filed.

W Nicholas Howley15 filings−$11.9M
Joel ReissCo-Chief Operating Officer32 filings−$3.4M

Institutional Ownership

Top 13F-HR holders of TransDigm Group INC as of 2026-06-30

↓ decreasing
Total reported AUM
$17.16B
QoQ change
-69.1%
Reporting period
2026-06-30
#1
State Street Corp
CIK 0000093751
$3.41B
2.6M shares
#2
BlackRock, Inc.
CIK 0002012383
$2.62B
2.0M shares
#3
Principal Financial Group Inc
CIK 0001126328
$2.14B
1.6M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

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Form4API, StockholmNot affiliated with the SEC or EDGAR. Data sourced from public EDGAR filings. Not investment advice.

Congressional Trading

Disclosed TDG trades under the STOCK Act

Total trades
27
Purchases
18
Sales
9
April McClain Delaney
Unknown · House · MD
11 buys
1 sell
Gilbert Ray Cisneros, Jr.
Democrat · House · CA
4 buys
2 sells
Jefferson Shreve
Republican · House · IN
2 buys
2 sells
Josh Gottheimer
Democrat · House · NJ
0 buys
2 sells
Val T. Hoyle
Democrat · House · OR
1 buy
1 sell
See all 6 members who traded TDG →

Sourced from U.S. House Clerk periodic transaction reports (House coverage only). Trade counts reflect disclosed filings only. The STOCK Act allows up to 45 days between a trade and its disclosure, so this reflects recent disclosures, not real-time trading. Full congressional trading API →

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