Aug 4, 2026 earnings call — Raised fiscal guidance and M&A activity
Raised fiscal 2026 revenue midpoint to $10.51 billion and EBITDA midpoint to $5.52 billion.
Revenue $2.7B (est $2.7B) · EPS $10.87 (est $10.30)
Key quotes
"As a result, we are raising guidance for the year."
"In commercial aftermarket, we delivered a strong performance in Q3 with the commercial transport component of our commercial aftermarket growing 18% versus the prior year period."
"This was a difficult decision that came after the Department of Justice notified us that they intended to challenge the transaction."
Analyst Q&A 12
Right-to-repair law impact
Q (Robert Stallard · Vertical): He asked whether the right-to-repair legislation in Congress could affect TransDigm down the line.
A: They said the proposed bill is still evolving and they will not presume or comment until it is final. They acknowledged it could affect many companies but are not in a position to comment until it becomes law.
"So we don't want to presume or comment until it becomes final." — Patrick Murphy (COO)
DOJ review effect on M&A
Q (Kenneth Herbert · RBC): He asked if the DOJ review of the Stellant deal affected their appetite for defense M&A and asked for detail on the current M&A pipeline and end-market exposure.
A: They said the Stellant review appears to be a one-off and not indicative of their ability to close future deals. They noted approvals for Jet Parts and Victor Sierra were filed after Stellant and that the M&A team remains busy with many targets.
"First, we think it's a one-off, not in any way indicative of our ability to get future deals through." — Michael Lisman (CEO)
Aftermarket strength vs flight activity
Q (Gavin Parsons · UBS): He asked why aftermarket is strong now despite flight activity and whether that strength will persist.
A: They said backlog and leading indicators give good visibility for the current quarter but they cannot reliably predict several quarters out. They noted about 50% of aftermarket books and ships in the same quarter and that they have not seen material impact from the Middle East yet.
"Our aftermarket sort of books and ships about 50% or so in the same quarter, and that's what we've got the most visibility to at this time." — Patrick Murphy (COO)
Drivers of commercial aftermarket growth
Q (Sheila Kahyaoglu · Jefferies): She asked what drove the 17% commercial aftermarket growth and how engines, interiors and airframe work contributed.
A: They said demand was broad-based across platforms and customers. Engine and passenger segments showed more strength and interiors were also strong, though Q3 was a bit lighter than earlier in the year.
"We are seeing more strength in engine and in passenger, which is a bigger part of our aftermarket." — Patrick Murphy (COO)
Expand M&A beyond aerospace?
Q (Kristine Liwag · Morgan Stanley): She asked whether TransDigm might broaden M&A into other industrial markets outside aerospace and defense to find larger opportunities.
A: They said they remain primarily focused on aerospace and defense, which is 95% of current revenue and where the M&A team spends most time. They noted year-to-date acquisitions (once Prince & Izant closes) total well north of $3 billion and while branching out is possible in time, the current focus remains on aerospace and defense.
"At this time, we remain primarily focused on looking at the aerospace and defense sector." — Michael Lisman (CEO)
Margin performance and Q4 outlook
Q (David Strauss · Wells Fargo): He asked why year-to-date margin dilution looked smaller than expected and what to expect for Q4 margins.
A: They raised guidance and said Q3 was strong at 52.8%, which implies a drop for Q4 and they are being conservative on Q4 margin assumptions. They also said acquisitions caused more than 2 full percentage points of dilution and they are early in integrating those businesses.
"We had a lot of dilution because of the acquisitions we completed that weighed us down more than 2 full percentage points." — Michael Lisman (CEO)
Jet Parts and Victor Sierra performance
Q (Myles Walton · Wolfe): He asked whether Jet Parts and Victor Sierra are commercial aftermarket and how they grew during the near-full quarter of ownership compared with the 17% market growth.
A: They said they are early in owning those businesses and including them does not materially change the percentage growth they reported. They described both businesses as growing at a good clip, a bit ahead of the broader aerospace and defense components landscape.
"These are businesses that are growing at a really good clip, not explosive growth, but growth that's a little bit ahead of what the broader aerospace and defense components landscape is seeing." — Michael Lisman (CEO)
Prince & Izant content on modern planes
Q (Scott Mikus · Melius): He asked if Prince & Izant likely has higher content on reengined aircraft like the 737 MAX and A320neo given its advanced materials.
A: They said they have not disclosed content on specific platforms. They described Prince & Izant as mostly aftermarket, serving a large installed base with proprietary, customized chemistries used in engine and rocket applications.
"It's mostly aftermarket, serving a large installed base." — Michael Lisman (CEO)
Buybacks versus special dividend
Q (Gautam Khanna · TD): He asked how they prioritize buybacks versus special dividends and how likely a special dividend is given the M&A pipeline.
A: They said they evaluate both buybacks and dividends and that buybacks must meet the same IRR criteria as acquisitions. They noted they are comfortably at the midpoint of their net debt-to-EBITDA range of 5 to 7 and will decide what makes the most sense to maximize shareholder value as they close out the fiscal and calendar year.
"On the buybacks, it's got to follow the criteria of meeting the same IRR returns." — Sarah Wynne (CFO)
Mix impact on margin expansion
Q (Seth Seifman · JPMorgan): He asked how product mix will affect margin expansion and whether the organic business still can expand margins 100 to 150 basis points.
A: They said the target for year-over-year margin improvement on a constant mix basis is unchanged and they expect to drive about 1.0% to 1.5% improvement in the base business. They added mix shifts can cause a slight headwind of a couple tenths of a point but usually not material to meeting their targets.
"We've always been able to and continue to, this year in our base businesses, drive margin improvement on a constant mix basis of 1 percentage point or slightly better, maybe up to 1.5%." — Michael Lisman (CEO)
OE ramps and supply chain
Q (Alexander Christian Preston · BofA): He asked about OE ramps into Q4 and fiscal 2027 and whether supply chain conditions are easing or have lingering issues.
A: They said they are encouraged by growth from Airbus and Boeing and that bookings remain a good leading indicator. They believe Boeing and Airbus are positioned to continue their paths into 2027 and said the supply chain is reasonably solid, though they continue to monitor it.
"As we get to 2027, we believe that Boeing and Airbus are well positioned to continue to march along the path that they've put forth, and we're in a great position to support them on that." — Patrick Murphy (COO)
Defense SKUs and repair risk
Q (Scott Deuschle · Deutsche Bank): He asked how many SKUs the defense business sells and whether it is a small-SKU business vulnerable to third-party repairs or a large-SKU business where repairs would have less impact.
A: They said they are hesitant to assess changing legislation now because it is still evolving. Broadly, they said the defense business has numerous SKUs — think tens of thousands to hundreds of thousands — largely derived from commercial technologies, and they will provide more concrete comment as legislation becomes final.
"But broadly speaking, our defense business in aggregate is numerous SKUs, think tens of thousands, hundreds of thousands, not just thousands." — Michael Lisman (CEO)