$5 - AKs UTG - Bubble

[pokerscaresme]

Poker Stars, $5 + $0.50 NL Hold'em Tournament, 200/400 Blinds, 9 Players
LeggoPoker Hand History Converter

SB: 8,132
BB: 8,805
Hero (UTG): 9,441
UTG+1: 9,448
UTG+2: 5,905
MP1: 14,439
MP2: 17,627
CO: 11,437
BTN: 5,575

Pre-Flop: (825) K[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/heart.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to 1,200</font>, <font color="red">UTG+1 raises to 4,400</font>, 7 folds, <font color="red">Hero raises to 9,416 and is All-In</font>

30ish left to money.
Villain is 25/10, I'm 15/10.

I know this is standard.. just wondering if I should've picked a better spot.
I don't see him raising less than AK/TT+
What does an overbet like this usually indicate besides him isolating me?