DUOLINGO INC

Ticker: DUOL CUSIP: 26603R106 Class: EQTY

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q1 2025

Shares 31,000 Value ($000) $9,627 Avg Close $342.01 Range $263.68 - $441.76

Q4 2024

Shares 31,000 Value ($000) $10,051 Avg Close $318.27 Range $273.06 - $378.48

Q3 2024

Shares 31,000 Value ($000) $8,743 Avg Close $205.07 Range $145.05 - $297.56

Q2 2024

Shares 27,500 Value ($000) $5,738 Avg Close $204.75 Range $171.93 - $251.30

Q1 2024

Shares 18,900 Value ($000) $4,169 Avg Close $203.74 Range $171.64 - $245.59

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	31,000	$9,627	$342.01	$263.68 - $441.76
Q4 2024	31,000	$10,051	$318.27	$273.06 - $378.48
Q3 2024	31,000	$8,743	$205.07	$145.05 - $297.56
Q2 2024	27,500	$5,738	$204.75	$171.93 - $251.30
Q1 2024	18,900	$4,169	$203.74	$171.64 - $245.59