X0202
13F-HR
LIVE
0001635007
XXXXXXXX
12-31-2024
12-31-2024
false
Mason Investment Advisory Services, Inc.
11921 Freedom Drive
Suite 1000
Reston
VA
20190
13F COMBINATION REPORT
028-23779
000111113
801-18054
0001364615
028-11964
000111616
801-57184
Aperio Group, LLC
0001364742
028-12019
BlackRock Finance, Inc.
N
Jack Delaney
Chief Compliance Officer
703-716-6000
/s/ Jack Delaney
Reston
VA
02-06-2025
0
71
1705395730