Filings Radar

SEC 8-K and 6-K filings classified by Claude with reasoning, plus Form 4 insider transactions. Ingested from EDGAR’s filing stream in near-real time, reconciled overnight.

TransDigm Group INC (TDG)

CIK 0001260221 3 material events

Insider activity (SEC Form 4)

Open-market buys and sells only — the deliberate trades. Zero here doesn’t mean no filings: grants, option exercises and tax withholding (below) are compensation, not market trades.

Open-market · last 30 days: 0 buyers bought $0 2 sellers sold $17.4M
Open-market · last 90 days: 0 buyers bought $0 2 sellers sold $79.5M
InsiderRoleDateTransactionSharesValue
Howley W Nicholas Director 2026-08-18 Option exercise 10b5-1 10132 $673K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 204 $250K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 70 $86K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 290 $356K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 570 $701K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 830 $1.0M
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 1055 $1.3M
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 450 $555K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 270 $333K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 140 $173K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 250 $309K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 520 $644K
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 3980 $4.9M
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 1313 $1.6M
Howley W Nicholas Director 2026-08-18 Open-market sell 10b5-1 190 $236K
Reiss Joel Co-Chief Operating Officer 2026-08-17 Option exercise 10b5-1 3900 $1.1M
Reiss Joel Co-Chief Operating Officer 2026-08-17 Open-market sell 10b5-1 140 $173K
Reiss Joel Co-Chief Operating Officer 2026-08-17 Open-market sell 10b5-1 260 $321K
Reiss Joel Co-Chief Operating Officer 2026-08-17 Open-market sell 10b5-1 327 $404K
Reiss Joel Co-Chief Operating Officer 2026-08-17 Open-market sell 10b5-1 373 $461K
Most recent 20 reported transactions. Open-market buys (P) and sells (S) are the deliberate ones; grants and option exercises are compensation. Not investment advice.

Risk Radar (year-over-year Risk Factors)

← All Risk Radar

Fiscal period ending 2025-09-30 versus 2024-09-30view filing on EDGAR →

Risk exposure broadened across five distinct themes, with no offsetting easings. The most consequential shifts are a rising intangible asset concentration (goodwill now 46% of total assets) that amplifies impairment vulnerability, and newly disclosed variable-rate debt exposure to Term SOFR that adds direct interest cost risk. Cyber risk language moved from contingent to expected escalation, and operational quality scope widened beyond catastrophic events — together these signal a meaningfully more exposed risk profile.

2 company-specific · 3 common-mode

Company-specific changes

Revised

New disclosure of U.S. Government fixed-price contract risk with cost overrun and margin pressure exposure, particularly for small-quantity or spot purchases.

We generally do not have guaranteed future sales of our products. Further, when we enter into fixed price contracts with some of our customers, we take the risk for cost overruns. As is customary in…

Revised

New opening language broadens risk from crashes to include product failure, misuse, and quality issues—expanding scope beyond catastrophic scenarios to operational quality risks.

We could be adversely affected by the impact of failure, misuse or quality issues of our products. We produce highly engineered aircraft components, and accordingly, the adverse impact of product…

Also disclosed — common-mode (Debt leverage refinancing, AI cybersecurity escalation, Goodwill intangible impairment)
Debt leverage refinancing Revised

New disclosure of variable-rate debt exposure to Term SOFR increases and interest rate hedging practices. Adds material operational risk from rising rates.

Our indebtedness could adversely affect our financial health and could harm our ability to react to changes to our business and prevent us from fulfilling our obligations under our indebtedness. We…

AI cybersecurity escalation Revised

Added explicit statement that cyber events will "continue to accelerate in frequency and impact" with AI-driven threats. Escalates risk severity from potential to expected escalation.

Increased cybersecurity threats and more sophisticated and targeted computer crime have posed and could continue to pose a risk to our and certain third parties’ information technology systems and…

Goodwill intangible impairment Revised

Goodwill increased to 46% of total assets (from 41%), and intangible assets rose to 15% (from 13%). Higher concentration of non-tangible assets increases impairment risk.

Risks Related to Financial Matters We have recorded a significant amount of intangible assets, which may never generate the returns we expect. Mergers and acquisitions have resulted in significant…

Material year-over-year changes to this company's Risk Factors (Item 1A), found by comparing each annual report to the prior year, judged for materiality, and classified as company-specific or common-mode against the cross-company catalog. Common-mode changes are the macro themes many companies disclose in common; they are collapsed above. A filing marked unchanged had no material change from the prior year; its summary describes the company's standing risks, which remain in force. Fiscal periods are the reporting period ends. Not investment advice.

Earnings release

8-K filed 2026-08-04 confidence 98% Item 2.02

TransDigm Group issued a press release on August 4, 2026 announcing financial results for its third quarter ended June 27, 2026, including net sales of $2,741 million (up 23%), net income of $540 million (up 10%), and adjusted EPS of $10.87 (up 13%), along with upward revision to fiscal 2026 guidance. This is a standard quarterly earnings disclosure under Item 2.02, material to investors assessing the company's operational and financial performance.

View raw filing on EDGAR →

Exec appointment

8-K filed 2026-07-24 confidence 95% Item 5.02

The filing discloses the appointment of Irina Krasik to TransDigm's Board of Directors, effective immediately on July 22, 2026. The principal action is a person taking a board role, with detailed background on her qualifications in M&A, investing, and corporate governance. Board appointments are material governance events affecting the composition and oversight of the company.

View raw filing on EDGAR →

M&A activity

8-K filed 2026-07-13 confidence 95% Item 8.01

TransDigm announced withdrawal from its proposed acquisition of Stellant Systems, Inc. from Arlington Capital Partners on July 13, 2026. The filing explicitly states the Company "elected to withdraw from its proposed acquisition" and that the Seller subsequently provided notice of termination. This is a material M&A event—the termination of a proposed acquisition—that would affect a reasonable investor's assessment of the Company's capital allocation strategy and near-term growth prospects.

View raw filing on EDGAR →