Subsequent Events	12 Months Ended
Sep. 30, 2025
Subsequent Events [Abstract]
Subsequent Events	18. Subsequent Events Kepware and ThingWorx Divestiture On November 5, 2025, we entered into an Asset Purchase Agreement with Parrot US Buyer, L.P., a Delaware limited partnership (“Purchaser”), an entity controlled by investment funds affiliated with TPG Global, LLC. Pursuant to the Asset Purchase Agreement, on the terms and subject to the conditions therein, PTC has agreed to sell, and Purchaser has agreed to acquire, PTC’s Kepware and ThingWorx businesses (collectively, the “Business”), in exchange for total consideration consisting of $600 million in cash (the “Purchase Price”) payable at the closing of the transactions contemplated by the Asset Purchase Agreement, subject to certain adjustments, plus the assumption by Purchaser of certain liabilities of the Business specified in the Asset Purchase Agreement, as well as the right to contingent consideration in an amount not to exceed $125 million in certain circumstances following a sale of the Business by Purchaser. The transaction is expected to close in the first half of calendar year 2026. As described in greater detail in the Asset Purchase Agreement, the Purchase Price will be (i) increased or decreased to the extent the Working Capital (as defined in the Asset Purchase Agreement) of the Business as of the Closing is higher or lower than a specified target amount, (ii) decreased by the amount of any Indebtedness (as defined in the Asset Purchase Agreement) of the Business as of the Closing, (iii) decreased by $35 million to the extent the Business does not achieve certain financial performance metrics in the month ending prior to Closing, and (iv) decreased by a specified amount reflecting the average billed accounts receivable of the Business as of the four-quarter period ending June 30, 2025. Credit Facility On November 18, 2025, we entered into an amendment to our credit agreement. The amendment amends the asset sale restrictions to eliminate the restriction entirely for the divestiture of PTC’s Kepware and ThingWorx businesses pursuant to that certain Asset Purchase Agreement dated November 5, 2025, between PTC and Purchaser and to permit sales of assets up to an aggregate of $250 million in book value in any fiscal year as long as no Default or Event of Default exists or would exist after consummation of the sale. On November 20, 2025, we borrowed $70 million under our revolving credit facility to fund working capital requirements. Share Repurchases In the first quarter of 2026, we continued our share repurchase program. Through November 20, 2025, we have repurchased $71 million of our common stock.

Subsequent Events

12 Months Ended

Sep. 30, 2025

18. Subsequent Events

Kepware and ThingWorx Divestiture

On November 5, 2025, we entered into an Asset Purchase Agreement with Parrot US Buyer, L.P., a Delaware limited partnership (“Purchaser”), an entity controlled by investment funds affiliated with TPG Global, LLC. Pursuant to the Asset Purchase Agreement, on the terms and subject to the conditions therein, PTC has agreed to sell, and Purchaser has agreed to acquire, PTC’s Kepware and ThingWorx businesses (collectively, the “Business”), in exchange for total consideration consisting of $600 million in cash (the “Purchase Price”) payable at the closing of the transactions contemplated by the Asset Purchase Agreement, subject to certain adjustments, plus the assumption by Purchaser of certain liabilities of the Business specified in the Asset Purchase Agreement, as well as the right to contingent consideration in an amount not to exceed $125 million in certain circumstances following a sale of the Business by Purchaser. The transaction is expected to close in the first half of calendar year 2026.

As described in greater detail in the Asset Purchase Agreement, the Purchase Price will be (i) increased or decreased to the extent the Working Capital (as defined in the Asset Purchase Agreement) of the Business as of the Closing is higher or lower than a specified target amount, (ii) decreased by the amount of any Indebtedness (as defined in the Asset Purchase Agreement) of the Business as of the Closing, (iii) decreased by $35 million to the extent the Business does not achieve certain financial performance metrics in the month ending prior to Closing, and (iv) decreased by a specified amount reflecting the average billed accounts receivable of the Business as of the four-quarter period ending June 30, 2025.

Credit Facility

On November 18, 2025, we entered into an amendment to our credit agreement. The amendment amends the asset sale restrictions to eliminate the restriction entirely for the divestiture of PTC’s Kepware and ThingWorx businesses pursuant to that certain Asset Purchase Agreement dated November 5, 2025, between PTC and Purchaser and to permit sales of assets up to an aggregate of $250 million in book value in any fiscal year as long as no Default or Event of Default exists or would exist after consummation of the sale.

On November 20, 2025, we borrowed $70 million under our revolving credit facility to fund working capital requirements.

Share Repurchases

In the first quarter of 2026, we continued our share repurchase program. Through November 20, 2025, we have repurchased $71 million of our common stock.