I saw that NetJets are working 5 on, 4 off.
From their
website
NetJets flight deck crew work a 6/5 day roster, except the ultra-long-haul crews who work a mix of 7/6 and 6/5 day rosters. This is 200 working days per year for all pilots split into 50 working days per quarter, less annual vacation entitlement of 22 days.