DUOLINGO INC

Ticker: DUOL CUSIP: 26603R106 Class: EQTY

CULLEN/FROST BANKERS, INC.'s Holding History (CIK: 0000039263)

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

Q3 2025

Shares 39 Value ($000) $13 Avg Close $334.45 Range $256.63 - $468.00

Q2 2025

Shares 150 Value ($000) $62 Avg Close $438.78 Range $274.97 - $544.93

Q4 2024

Shares 23 Value ($000) $7 Avg Close $318.27 Range $273.06 - $378.48

Q3 2024

Shares 19 Value ($000) $5 Avg Close $205.07 Range $145.05 - $297.56

Q2 2024

Shares 15 Value ($000) $3 Avg Close $204.75 Range $171.93 - $251.30

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	39	$13	$334.45	$256.63 - $468.00
Q2 2025	150	$62	$438.78	$274.97 - $544.93
Q4 2024	23	$7	$318.27	$273.06 - $378.48
Q3 2024	19	$5	$205.07	$145.05 - $297.56
Q2 2024	15	$3	$204.75	$171.93 - $251.30