Brad Pitt Has Visitation with His Younger Kids but 'Virtually No Contact' with Adult Kids: Source (Exclusive)

One month after Angelina Jolie and Brad Pitt's 18-year-old daughter Shiloh filed to drop "Pitt" from her last name, a source close to the family tells PEOPLE that the actor has "virtually no contact" with his adult kids but still has visitation with his younger kids.

"He has virtually no contact with the adult kids. His engagement with the younger kids is more limited in recent months because of his filming schedule," the source says. Pitt is currently on location in Europe filming his upcoming racing movie F1.

Jolie, 48, and Pitt, 60, share six kids: Maddox, 22, Zahara, 19, Shiloh, Pax, 20, and twins Knox and Vivienne, 15. The source also notes that the couple's custody agreement allows visitation rights to their minor children. Jolie first filed for divorce and sole physical custody of their kids in 2016.

"[Angelina] has the kids most of the time, but per their agreement, he has visitation with the younger kids."

Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

A source close to Pitt recently revealed to PEOPLE that the father of six is "aware and upset" about Shiloh's name change. “He’s aware and upset that Shiloh dropped his last name," the source said in June.

"The reminders that he’s lost his children, is of course not easy for Brad. He loves his children and misses them. It’s very sad," added the insider.

"He’s still happy with Ines [de Ramon]," the source continued, but the distance from his children "pains him."

The PEOPLE Puzzler crossword is here! How quickly can you solve it? Play now!

“He still loves all of his kids tremendously,” another source close to Pitt told PEOPLE. “This whole process has been very hard for the whole family."

As confirmed to PEOPLE by someone familiar with the matter, Shiloh’s documents were filed on Monday, May 27, which also happened to be her 18th birthday. The teenager is requesting a new legal name, hoping to go by simply "Shiloh Jolie."

Shiloh isn't the only child of Jolie and Pitt to appear to go by a different name. In the Playbill for the new musical The Outsiders, which their daughter Vivienne helped mom Jolie produce, the teenager is listed as “Vivienne Jolie" instead of "Vivienne Jolie-Pitt," PEOPLE confirmed.

At this time, it is not clear if Vivienne has also legally changed her name.