DUOLINGO INC

Ticker: DUOL CUSIP: 26603R106 Class: EQTY

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q4 2025

Shares 1,967 Value ($000) $345 Avg Close $235.64 Range $166.27 - $353.00

Q3 2025

Shares 2,793 Value ($000) $899 Avg Close $334.45 Range $256.63 - $468.00

Q2 2025

Shares 3,400 Value ($000) $1,394 Avg Close $438.78 Range $274.97 - $544.93

Q1 2025

Shares 2,628 Value ($000) $816 Avg Close $342.01 Range $263.68 - $441.76

Q2 2022

Shares 37 Value ($000) $3 Avg Close $88.33 Range $60.50 - $106.43

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,967	$345	$235.64	$166.27 - $353.00
Q3 2025	2,793	$899	$334.45	$256.63 - $468.00
Q2 2025	3,400	$1,394	$438.78	$274.97 - $544.93
Q1 2025	2,628	$816	$342.01	$263.68 - $441.76
Q2 2022	37	$3	$88.33	$60.50 - $106.43