DUOLINGO INC

Ticker: DUOL CUSIP: 26603R106 Class: EQTY

Capital World Investors's Holding History (CIK: 0001422849)

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

Q4 2025

Shares 2,241,378 Value ($000) $393,362 Avg Close $235.64 Range $166.27 - $353.00

Q3 2025

Shares 2,230,238 Value ($000) $717,789 Avg Close $334.45 Range $256.63 - $468.00

Q2 2025

Shares 2,292,752 Value ($000) $940,076 Avg Close $438.78 Range $274.97 - $544.93

Q1 2025

Shares 1,355,796 Value ($000) $421,029 Avg Close $342.01 Range $263.68 - $441.76

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,241,378	$393,362	$235.64	$166.27 - $353.00
Q3 2025	2,230,238	$717,789	$334.45	$256.63 - $468.00
Q2 2025	2,292,752	$940,076	$438.78	$274.97 - $544.93
Q1 2025	1,355,796	$421,029	$342.01	$263.68 - $441.76