Merck's Gulfstream G650ER lands in Trenton the day of FDA's Keytruda approval

Merck's Gulfstream G650ER (N822MK) was tracked departing Prairie Ronde Airport in Michigan at 21:43 UTC on June 25, 2026, and arriving at Trenton Mercer Airport in New Jersey just over an hour later at 22:51 UTC. The aircraft covered 613 knots at 41,000 feet.

If Merck executives were aboard, they would land in the New Jersey area the same day the FDA approved Keytruda (pembrolizumab) and Keytruda QLEX in combination with Gilead's Trodelvy as a first-line treatment for patients with PD-L1+ advanced triple-negative breast cancer, per a Business Wire report [finance.yahoo.com](https://finance.yahoo.com/healthcare/articles/fda-approves-keytruda-pembrolizumab-keytruda-104500449.html). The approval, announced by Merck on June 25, marks the first PD-1 inhibitor plus Trop-2-directed ADC regimen in this setting.

The flight from Michigan follows a pattern of recent trips by the same aircraft: earlier on June 25, it flew from Greenville, South Carolina to Michigan, and on June 23 it connected the Scranton area to Greenville. The fleet's movements often link Merck's Rahway headquarters to key operational sites and events — making a return to New Jersey the week of a major regulatory milestone a plausible business trip.