DUOLINGO INC

Ticker: DUOL CUSIP: 26603R106 Class: EQTY

Vontobel Holding Ltd.'s Holding History (CIK: 0001588340)

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

Q4 2025

Shares 2,423 Value ($000) $425 Avg Close $235.64 Range $166.27 - $353.00

Q3 2025

Shares 2,764 Value ($000) $890 Avg Close $334.45 Range $256.63 - $468.00

Q2 2025

Shares 898 Value ($000) $368 Avg Close $438.78 Range $274.97 - $544.93

Q1 2025

Shares 1,307 Value ($000) $406 Avg Close $342.01 Range $263.68 - $441.76

Q4 2024

Shares 1,603 Value ($000) $520 Avg Close $318.27 Range $273.06 - $378.48

Q3 2024

Shares 1,682 Value ($000) $474 Avg Close $205.07 Range $145.05 - $297.56

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,423	$425	$235.64	$166.27 - $353.00
Q3 2025	2,764	$890	$334.45	$256.63 - $468.00
Q2 2025	898	$368	$438.78	$274.97 - $544.93
Q1 2025	1,307	$406	$342.01	$263.68 - $441.76
Q4 2024	1,603	$520	$318.27	$273.06 - $378.48
Q3 2024	1,682	$474	$205.07	$145.05 - $297.56