Villain is a strange, nitty reg (at least preflop). He is 17/13 with 5% 3bet and 65% fold to 3bet and an UTG RFI of 12 over 850 hands. I've only seen him 4bet AA and AKs, but he also flatted a 2bet with AA once. (I wouldn't say with certainty that he can't have KK in his range OTF).
PokerStars - $0.25 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4
SB: 182.48 BB
BB: 135.96 BB
UTG: 112.92 BB
Hero (MP): 101.96 BB
CO: 94.6 BB
BTN: 36.28 BB
SB posts SB 0.4 BB, BB posts BB 1 BB
Pre Flop: (pot: 1.4 BB) Hero has A
A
UTG raises to 3 BB,
Hero raises to 9 BB,
fold,
fold,
fold,
fold,
UTG calls 6 BB
Flop: (19.4 BB, 2 players) 5
Q
K
UTG bets 12.36 BB,
Hero calls 12.36 BB
Turn: (44.12 BB, 2 players) T
UTG checks,
Hero checks
River: (44.12 BB, 2 players) K
UTG checks,
Hero bets 12.64 BB