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Ken Griffin's Duolingo, Inc. (DUOL) position

Yes: as of Q1 2026, Ken Griffin holds 274K shares of DUOL worth $27M (0.0% of the disclosed portfolio). Last quarter the position was reduced by 14.2%. First disclosed Q3 2021.
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Current value
$27M
Shares held
274K
% of portfolio
0.0%
Est. average buy price (i)
$235.66
est. since Q4 2025
Quarter-end price
$98.57

Estimated trade prices

Average price in quarters with purchases
$278.95
Average prices in quarters with sales
  • Q1 2026: $123.48 (45K shares sold)
  • Q1 2025: $342.01 (997 shares sold)
  • Q4 2024: $318.27 (57K shares sold)
  • Q2 2024: $204.75 (18K shares sold)
  • Q1 2024: $203.74 (57K shares sold)
  • Q3 2023: $147.08 (91K shares sold)
  • Q2 2023: $143.30 (71K shares sold)
  • Q1 2023: $102.70 (40K shares sold)
  • Q3 2022: $97.34 (98K shares sold)
  • Q1 2022: $90.31 (37K shares sold)

DUOL price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$60$200$400$60020222023202420252026New position of 11K shares · Q3 2021. Average closing price $151.77 · Price range $120.00–$202.6911KsharespurchasedAdded 97K shares (853.6%) · Q4 2021. Average closing price $137.73 · Price range $95.69–$188.0597KsharespurchasedSold 37K shares (34.2%) · Q1 2022. Average closing price $90.31 · Price range $66.99–$105.8637KsharessoldSold 98K shares (31.1%) · Q3 2022. Average closing price $97.34 · Price range $89.21–$110.0998KsharessoldAdded 6K shares (2.9%) · Q4 2022. Average closing price $78.08 · Price range $65.38–$104.296KsharespurchasedSold 40K shares (17.7%) · Q1 2023. Average closing price $102.70 · Price range $70.93–$142.5940KsharessoldSold 71K shares (38.4%) · Q2 2023. Average closing price $143.30 · Price range $119.66–$167.0571KsharessoldSold 91K shares (80.2%) · Q3 2023. Average closing price $147.08 · Price range $123.90–$165.8791KsharessoldAdded 53K shares (233.4%) · Q4 2023. Average closing price $194.44 · Price range $142.04–$241.2153KsharespurchasedSold 57K shares (75.5%) · Q1 2024. Average closing price $203.74 · Price range $174.26–$239.0057KsharessoldSold 18K shares (99.7%) · Q2 2024. Average closing price $204.75 · Price range $175.78–$248.8418KsharessoldAdded 58K shares (over 1,000%) · Q3 2024. Average closing price $205.07 · Price range $158.85–$287.5458KsharespurchasedSold 57K shares (98.2%) · Q4 2024. Average closing price $318.27 · Price range $279.75–$373.0357KsharessoldSold 997 shares (96.9%) · Q1 2025. Average closing price $342.01 · Price range $272.49–$441.39997sharessoldAdded 118K shares (over 1,000%) · Q2 2025. Average closing price $438.77 · Price range $292.88–$540.68118KsharespurchasedAdded 112K shares (94.7%) · Q3 2025. Average closing price $335.14 · Price range $271.18–$436.26112KsharespurchasedSold 45K shares (14.2%) · Q1 2026. Average closing price $123.48 · Price range $94.12–$190.7545Ksharessold
Average closing price · filing quarter
$123.48
Price range · filing quarter
$94.12 – $190.75
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Reduced −45K −$5.6M −14.2% 274K May 15, 2026
Q4 2025 First covered – – – 319K Feb 17, 2026
Q3 2025 Added +112K +$38M +94.7% 230K Nov 14, 2025
Q2 2025 Added +118K +$52M +369,178.1% 118K Aug 14, 2025
Q1 2025 Reduced −997 −$341K −96.9% 32 May 15, 2025
Q4 2024 Reduced −57K −$18M −98.2% 1K Feb 14, 2025
Q3 2024 Added +58K +$12M +121,552.1% 58K Nov 14, 2024
Q2 2024 Reduced −18K −$3.8M −99.7% 48 Aug 14, 2024
Q1 2024 Reduced −57K −$12M −75.5% 18K May 15, 2024
Q4 2023 Added +53K +$10M +233.4% 75K Feb 14, 2024
Q3 2023 Reduced −91K −$13M −80.2% 23K Nov 14, 2023
Q2 2023 Reduced −71K −$10M −38.4% 114K Aug 14, 2023
Q1 2023 Reduced −40K −$4.1M −17.7% 185K May 15, 2023
Q4 2022 Added +6K +$499K +2.9% 224K Feb 14, 2023
Q3 2022 Reduced −98K −$9.6M −31.1% 218K Nov 14, 2022
Q2 2022 First covered – – – 316K Aug 15, 2022
Q1 2022 Reduced −37K −$3.3M −34.2% 71K May 16, 2022
Q4 2021 Added +97K +$13M +853.6% 108K Feb 14, 2022
Q3 2021 New +11K +$1.7M – 11K Nov 15, 2021
Data through Q1 2026 · filed May 15, 2026
19 grouped rows from 19 quarters

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Common questions

Does Ken Griffin own DUOL?

Yes. As of Q1 2026, Ken Griffin disclosed 274K shares of DUOL, worth $27M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy DUOL?

Ken Griffin first disclosed a DUOL position in Q3 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell DUOL?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in DUOL. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of DUOL does Ken Griffin own?

Ken Griffin disclosed 274K shares of DUOL as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for DUOL?

Ken Griffin began building the DUOL position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.