Fourth quarter pro forma operating expenses increased 19% compared with last year, driven by increased headcount, higher travel costs, increased customer training activities, and higher R&D-related project costs.

Jan 24, 2023 / CFO / receipt, needs a key / Jamie Smath, CFO | earnings call 2023-01-24 | transcript 143df09f-0b70-4801-b78e-df15a14b603f | chars 18284-18496 | segment 18

The increase in second quarter operating expenses from a year ago reflected an increase in headcount, higher R&D related project costs, and higher travel costs, including the impact of inflation.

Jul 21, 2022 / CFO / receipt, needs a key / Jamie Smath, CFO | earnings call 2022-07-21 | transcript 9a4e9b28-8aa8-4293-a6ed-5e62c14f03e5 | chars 15909-16104 | segment 16