diff --git a/_people/xiong.md b/_people/xiong.md
index 431f2166b227fd6dca77b7ebc52df27916e09a13..39e8db2d1b3e6f39a294ec9edc11747a715e4772 100644
--- a/_people/xiong.md
+++ b/_people/xiong.md
@@ -5,9 +5,13 @@ position: PhD Student
 webpage: http://www.doc.ic.ac.uk/~sx14/
 email: shale.xiong14@imperial.ac.uk
 github: ShaleXIONG
-alumnus: false
+alumnus: true
 projects:
   - concurrency
   - moc
 ---
 
+was a PhD student with the group. Shale defended his thesis: Parametric Operational 
+Semantics for Consistency Models in February 2020 and he is currently working 
+for [Arm Research]( https://www.arm.com/resources/research), Cambridge, as a 
+Research Engineer in their Security group.
\ No newline at end of file