DUOLINGO INC

Ticker: DUOL CUSIP: 26603R106 Class: EQTY

Left Brain Wealth Management, LLC's Holding History (CIK: 0001957370)

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

Q3 2025

Shares 1,651 Value ($000) $531 Avg Close $334.45 Range $256.63 - $468.00

Q2 2025

Shares 2,032 Value ($000) $833 Avg Close $438.78 Range $274.97 - $544.93

Q1 2025

Shares 1,479 Value ($000) $459 Avg Close $342.01 Range $263.68 - $441.76

Q4 2024

Shares 3,472 Value ($000) $1,126 Avg Close $318.27 Range $273.06 - $378.48

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	1,651	$531	$334.45	$256.63 - $468.00
Q2 2025	2,032	$833	$438.78	$274.97 - $544.93
Q1 2025	1,479	$459	$342.01	$263.68 - $441.76
Q4 2024	3,472	$1,126	$318.27	$273.06 - $378.48