Boston Family Office’s Duolingo DUOL Stock Holding History

Boston Family Office’s Portfolio DUOL Stock Details DUOL Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-1,026	Closed	-$330K	–	311
2025 Q3	$330K	Hold	1,026	–	–	0.02%	240
2025 Q2	$421K	Sell	1,026 -310	-23%	-$136K	0.03%	218
2025 Q1	$415K	Hold	1,336	–	–	0.03%	210
2024 Q4	$433K	Hold	1,336	–	–	0.03%	209
2024 Q3	$377K	Hold	1,336	–	–	0.03%	221
2024 Q2	$279K	Hold	1,336	–	–	0.02%	228
2024 Q1	$295K	Hold	1,336	–	–	0.02%	222
2023 Q4	$303K	Hold	1,336	–	–	0.02%	222
2023 Q3	$222K	Sell	1,336 -1,335	-50%	-$196K	0.02%	234
2023 Q2	$382K	Hold	2,671	–	–	0.03%	213
2023 Q1	$380K	Buy	+2,671	New	+$274K	0.03%	214

Other funds holding DUOL

Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

DIG

Dragoneer Investment Group San Francisco, California $2.83B AUM 12.55% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

WRCM

Whale Rock Capital Management Boston, Massachusetts $12.5B AUM 306.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Boston Family Office's DUOL Position: Q4 2025 in Review

Boston Family Office sold out of Duolingo (DUOL) in Q4 2025, closing a stake of 1,026 shares — an estimated $330K sold.

Boston Family Office first reported a position in DUOL in Q1 2023 and held it in 11 quarters. The position peaked at $433K in Q4 2024. 475 funds tracked by Wall St. Rank hold DUOL as of Q4 2025.

Boston Family Office reported no remaining Duolingo position as of Q4 2025 after selling out during the quarter.
Boston Family Office sold 1,026 Duolingo shares in Q4 2025, an estimated $330K.
Boston Family Office first reported a position in Duolingo in Q1 2023 and held it in 11 quarters.
Boston Family Office's Duolingo position peaked at $433K in Q4 2024.
475 funds tracked by Wall St. Rank held Duolingo as of Q4 2025.

Based on Boston Family Office's 13F filing for Q4 2025, filed 13 Feb 2026.