DUOLINGO INC

Ticker: DUOL CUSIP: 26603R106 Class: EQTY

Banco Santander, S.A.'s Holding History (CIK: 0000891478)

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

Q4 2025
Shares 2,357 Value ($000) $414 Avg Close $235.64 Range $166.27 - $353.00
Q3 2025
Shares 2,387 Value ($000) $768 Avg Close $334.45 Range $256.63 - $468.00
Q2 2025
Shares 1,213 Value ($000) $497 Avg Close $438.78 Range $274.97 - $544.93