GRID DYNAMICS HLDGS INC

Ticker: GDYN CUSIP: 39813G109 Class: Common Stock

MASSMUTUAL TRUST CO FSB/ADV's Holding History (CIK: 0001103653)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 2,492 Value ($000) $23 Avg Close $8.66 Range $7.40 - $10.21

Q3 2025

Shares 426 Value ($000) $3 Avg Close $8.93 Range $7.37 - $12.86

Q1 2025

Shares 45 Value ($000) $1 Avg Close $20.04 Range $15.23 - $25.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,492	$23	$8.66	$7.40 - $10.21
Q3 2025	426	$3	$8.93	$7.37 - $12.86
Q1 2025	45	$1	$20.04	$15.23 - $25.50