DUOLINGO INC

Ticker: DUOL CUSIP: 26603R106 Class: EQTY

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2025

Shares 1,814 Value ($000) $318 Avg Close $235.64 Range $166.27 - $353.00

Q3 2025

Shares 7,681 Value ($000) $2,472 Avg Close $334.45 Range $256.63 - $468.00

Q2 2025

Shares 1,124 Value ($000) $461 Avg Close $438.78 Range $274.97 - $544.93

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,814	$318	$235.64	$166.27 - $353.00
Q3 2025	7,681	$2,472	$334.45	$256.63 - $468.00
Q2 2025	1,124	$461	$438.78	$274.97 - $544.93