DUOLINGO INC DUOL
CL A COM · Common Stock · CUSIP 26603R106 · ISIN US26603R1068
American online platform for language learning
- SectorTechnology
- IndustryServices-Prepackaged Software
- HeadquartersPittsburgh, PA
- Websiteen.duolingo.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($3.6m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $142.93. Options: 14 managers hold calls ($73.9m notional), 15 hold puts ($66.5m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 168 |
| Q4 2022 | 155 |
| Q1 2023 | 196 |
| Q2 2023 | 238 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 97 | 70 |
| Q1 2023 | 127 | 68 |
| Q2 2023 | 162 | 70 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $26.3m | $31.6m | 1.20 |
| Q4 2022 | $12.1m | $15.1m | 1.25 |
| Q1 2023 | $95.5m | $78.7m | 0.82 |
| Q2 2023 | $73.9m | $66.5m | 0.90 |
Biggest buyers
| VANGUARD GROUP INC | Added | +458.0k |
| DEUTSCHE BANK AG\ | Added | +453.1k |
| D. E. Shaw & Co., Inc. | Added | +340.1k |
| TWO SIGMA ADVISERS, LP | Added | +309.9k |
| BlackRock Inc. | Added | +303.2k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +263.5k |
| GOLDMAN SACHS GROUP INC | Added | +239.3k |
| WELLINGTON MANAGEMENT GROUP LLP | Added | +227.8k |
| TWO SIGMA INVESTMENTS, LP | Added | +203.3k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +191.8k |
Biggest sellers
| FMR LLC | Reduced | -1.2m |
| GENERAL ATLANTIC, L.P. | Reduced | -583.7k |
| Alphabet Inc. | Sold out | -523.8k |
| BIT Capital GmbH | Reduced | -321.8k |
| T. Rowe Price Investment Management, Inc. | Reduced | -247.4k |
| BAILLIE GIFFORD & CO | Reduced | -192.5k |
| NORGES BANK | Reduced | -145.0k |
| Man Group plc | Sold out | -106.5k |
| Carnegie Mellon University | Reduced | -70.9k |
| CITADEL ADVISORS LLC | Reduced | -70.8k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $19.4m135.4k shares |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | Added | $17.2m120.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $12.0m84.3k shares |
| JANE STREET GROUP, LLC | Reduced | $7.6m52.9k shares |
| SIMPLEX TRADING, LLC | Added | $5.6m38.9k shares |
| PEAK6 Investments LLC | Reduced | $4.3m30.0k shares |
| Cubist Systematic Strategies, LLC | New | $3.0m21.0k shares |
| Walleye Trading LLC | Added | $1.8m12.5k shares |
| GROUP ONE TRADING LLC | Added | $1.6m11.2k shares |
| Walleye Capital LLC | Added | $829.1k5.8k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $22.1m154.4k shares |
| CITADEL ADVISORS LLC | Added | $12.3m86.1k shares |
| SIMPLEX TRADING, LLC | Added | $8.5m59.4k shares |
| Walleye Trading LLC | Reduced | $6.3m43.8k shares |
| Twin Tree Management, LP | Added | $5.8m40.7k shares |
| Walleye Capital LLC | Added | $3.1m21.7k shares |
| JANE STREET GROUP, LLC | Reduced | $2.5m17.4k shares |
| Cubist Systematic Strategies, LLC | New | $1.7m11.9k shares |
| Lido Advisors, LLC | New | $1.4m10.0k shares |
| PEAK6 Investments LLC | New | $1.1m7.6k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BAILLIE GIFFORD & CO 13G · institution -1.1 pts · filed 2026-10-20 | 11.3% |
| von Ahn Luis 13G · exempt (held before listing) filed 2026-08-12 | 8.2% |
| Hacker Severin 13G · exempt (held before listing) filed 2025-04-17 | 7.6% |
| AQR CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-08-12 | 5.8% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-07-31 | 5.1% |
Fell to 5% or below in the last year: Capital World Investors (0.0%, 2026-05-14), FMR LLC (2.7%, 2026-05-06), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q2 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 6 | $26.1m | — |
| Q1 2022 | 0 | — | 5 | $697.4k | — |
| Q2 2022 | 0 | — | 7 | $26.0m | — |
| Q3 2022 | 0 | — | 5 | $4.7m | — |
| Q4 2022 | 0 | — | 5 | $4.2m | — |
| Q1 2023 | 0 | — | 7 | $36.1m | $1.9m |
| Q2 2023 | 0 | — | 9 | $15.4m | $14.7m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-06-14 | von Ahn Luis President & CEO, Co-Founder, director | Sold plan | $5.1m33.3k shares |
| 2023-06-14 | Shelton James H Director | Sold plan | $1.5m10.0k shares |
| 2023-06-12 | Clemens Sara Director | Sold plan | $1.8m11.6k shares |
| 2023-06-12 | Munson Gillian Director | Sold plan | $130.2k832 shares |
| 2023-06-05 | Meese Robert Chief Business Officer | Sold plan | $801.0k5.0k shares |
| 2023-06-01 | Skaruppa Matthew Chief Financial Officer | Sold plan | $768.7k5.0k shares |
| 2023-05-18 | Meese Robert Chief Business Officer | Sold plan | $690.3k4.6k shares |
| 2023-05-17 | Skaruppa Matthew Chief Financial Officer | Sold plan | $282.9k2.0k shares |
| 2023-05-15 | Glance Natalie Chief Engineering Officer | Sold | $254.8k1.8k shares |
| 2023-05-15 | Skaruppa Matthew Chief Financial Officer | Sold | $254.1k1.8k shares |
| 2023-05-15 | Meese Robert Chief Business Officer | Sold | $107.5k763 shares |
| 2023-05-15 | Chen Stephen C. General Counsel | Sold | $94.2k669 shares |
| 2023-05-11 | Meese Robert Chief Business Officer | Sold plan | $60.0k400 shares |
| 2023-05-01 | Hacker Severin Chief Tech Officer, Co-Founder, director · See footnote | Sold plan | $1.4m10.0k shares |
| 2023-04-03 | Hacker Severin Chief Tech Officer, Co-Founder, director · See footnote | Sold plan | $1.4m10.0k shares |
| 2023-04-03 | Skaruppa Matthew Chief Financial Officer | Sold plan | $711.5k5.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| BAILLIE GIFFORD & CO 0.52% of their portfolio | 4.3m $611.1m | Reduced -192.5k |
| Durable Capital Partners LP 5.21% of their portfolio | 4.2m $594.2m | Unchanged |
| VANGUARD GROUP INC 0.01% of their portfolio | 3.1m $438.7m | Added +458.0k |
| BlackRock Inc. 0.01% of their portfolio | 2.3m $332.1m | Added +303.2k |
| Whale Rock Capital Management LLC 3.27% of their portfolio | 1.3m $189.9m | Added +8.7k |
| LORD, ABBETT & CO. LLC 0.31% of their portfolio | 1.3m $179.7m | Added +72.0k |
| Foxhaven Asset Management, LP 5.42% of their portfolio | 1.2m $165.4m | Added +38.7k |
| GILDER GAGNON HOWE & CO LLC 1.78% of their portfolio | 911.0k $130.2m | Reduced -13.9k |
| T. Rowe Price Investment Management, Inc. 0.08% of their portfolio | 805.6k $115.2m | Reduced -247.4k |
| FMR LLC 0.01% of their portfolio | 739.6k $105.7m | Reduced -1.2m |
| D. E. Shaw & Co., Inc. 0.14% of their portfolio | 649.4k $92.8m | Added +340.1k |
| STATE STREET CORP 0.00% of their portfolio | 583.1k $83.4m | Added +88.4k |
| GENERAL ATLANTIC, L.P. 1.31% of their portfolio | 580.6k $83.0m | Reduced -583.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 571.2k $81.7m | Added +87.4k |
| Invesco Ltd. 0.02% of their portfolio | 559.8k $80.0m | Added +154.9k |
| MORGAN STANLEY 0.01% of their portfolio | 546.1k $78.1m | Added +80.2k |
| TWO SIGMA INVESTMENTS, LP 0.20% of their portfolio | 513.4k $73.4m | Added +203.3k |
| TWO SIGMA ADVISERS, LP 0.19% of their portfolio | 512.2k $73.2m | Added +309.9k |
| DEUTSCHE BANK AG\ 0.04% of their portfolio | 508.6k $72.7m | Added +453.1k |
| GOLDMAN SACHS GROUP INC 0.02% of their portfolio | 425.0k $60.7m | Added +239.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.08% of their portfolio | 409.9k $58.6m | Added +191.8k |
| Carnegie Mellon University 74.35% of their portfolio | 369.5k $52.8m | Reduced -70.9k |
| ACADIAN ASSET MANAGEMENT LLC 0.21% of their portfolio | 349.4k $49.9m | Added +263.5k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.22% of their portfolio | 320.4k $45.8m | Added +130.9k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 290.7k $41.5m | Added +67.5k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 271.9k $38.9m | Added +53.8k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 243.3k $34.8m | Added +227.8k |
| MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio | 234.7k $33.5m | Reduced -16.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 211.5k $30.2m | Added +26.4k |
| Man Group plc 0.08% of their portfolio | 182.8k $26.1m | New |
| Artisan Partners Limited Partnership 0.04% of their portfolio | 163.3k $23.3m | New |
| BIT Capital GmbH 2.44% of their portfolio | 146.7k $21.0m | Reduced -321.8k |
| Driehaus Capital Management LLC 0.25% of their portfolio | 137.5k $19.7m | Added +78.2k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 136.9k $19.6m | New |
| NORGES BANK 0.00% of their portfolio | 121.6k $17.4m | Reduced -145.0k |
| Cubist Systematic Strategies, LLC 0.19% of their portfolio | 121.3k $17.3m | Added +95.9k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 113.7k $16.3m | Reduced -70.8k |
| FEDERATED HERMES, INC. 0.04% of their portfolio | 112.9k $16.1m | Added +26.1k |
| JANE STREET GROUP, LLC 0.02% of their portfolio | 104.3k $14.9m | Added +52.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 103.9k $14.9m | Added +12.6k |
| LONG WALK MANAGEMENT LP 10.62% of their portfolio | 100.5k $14.4m | Reduced -23.5k |
| MARSHALL WACE, LLP 0.03% of their portfolio | 97.8k $14.0m | Added +37.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 95.5k $13.7m | Reduced -22.4k |
| ThornTree Capital Partners LP 3.14% of their portfolio | 92.3k $13.2m | Reduced -24.2k |
| Jasper Ridge Partners, L.P. 0.63% of their portfolio | 87.1k $12.5m | Unchanged |
| CREDIT SUISSE AG/ 0.01% of their portfolio | 83.5k $11.9m | Reduced -4.9k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.05% of their portfolio | 80.0k $11.4m | Added +40.0k |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.11% of their portfolio | 79.0k $11.3m | Added +7.1k |
| Allen Investment Management, LLC 0.17% of their portfolio | 78.5k $11.2m | Unchanged |
| COOPER CREEK PARTNERS MANAGEMENT LLC 0.73% of their portfolio | 74.5k $10.7m | Unchanged |
| Atika Capital Management LLC 1.19% of their portfolio | 66.2k $9.5m | Added +1.2k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 63.9k $9.1m | Added +46.2k |
| Bridgewater Associates, LP 0.05% of their portfolio | 62.0k $8.9m | Added +1.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 59.5k $8.5m | Added +39.5k |
| BARCLAYS PLC 0.01% of their portfolio | 59.4k $8.5m | Added +28.3k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 57.1k $8.2m | Reduced -47.5k |
| Swiss National Bank 0.01% of their portfolio | 56.1k $8.0m | Added +15.6k |
| Connor, Clark & Lunn Investment Management Ltd. 0.04% of their portfolio | 54.6k $7.8m | Added +32.6k |
| Mitsubishi UFJ Trust & Banking Corp 0.02% of their portfolio | 52.6k $7.5m | Reduced -1.9k |
| Numerai GP LLC 1.48% of their portfolio | 50.8k $7.3m | New |
| TUDOR INVESTMENT CORP ET AL 0.11% of their portfolio | 48.3k $6.9m | Reduced -1.5k |
| Cerity Partners LLC 0.03% of their portfolio | 45.2k $6.5m | Added +26 |
| M&G INVESTMENT MANAGEMENT LTD 0.04% of their portfolio | 44.7k $6.4m | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 43.5k $6.2m | Added +32.8k |
| Quadrature Capital Ltd 0.13% of their portfolio | 41.0k $5.9m | Added +9.0k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 40.1k $5.6m | Added +37.1k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 39.8k $5.7m | Added +26.5k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 39.4k $5.6m | Added +7.4k |
| CONSOLIDATED PRESS INTERNATIONAL HOLDINGS LTD 1.74% of their portfolio | 38.9k $5.6m | Added +225 |
| Trexquant Investment LP 0.14% of their portfolio | 37.4k $5.3m | Added +5.5k |
| SYCOMORE ASSET MANAGEMENT 1.24% of their portfolio | 37.0k $5.3m | Added +17.6k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 34.8k $5.0m | Added +6.6k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.01% of their portfolio | 32.8k $4.7m | Added +13.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 32.2k $4.6m | Added +6.8k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 31.5k $4.5m | Added +3.9k |
| Hillsdale Investment Management Inc. 0.41% of their portfolio | 31.2k $4.5m | Added +24.7k |
| ALGERT GLOBAL LLC 0.19% of their portfolio | 30.3k $4.3m | Added +22.4k |
| Pier Capital, LLC 0.60% of their portfolio | 29.4k $4.2m | Reduced -27.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 26.1k $3.7m | Unchanged |
| PDT Partners, LLC 0.50% of their portfolio | 25.3k $3.6m | Added +25 |
| Legal & General Group Plc 0.00% of their portfolio | 25.1k $3.6m | Added +4.2k |
| Quantbot Technologies LP 0.23% of their portfolio | 24.7k $3.5m | Added +6.0k |
| ALLEN OPERATIONS LLC 0.75% of their portfolio | 23.7k $3.4m | Unchanged |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.01% of their portfolio | 23.4k $3.3m | Added +9.8k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 22.7k $3.2m | Added +13.8k |
| Engineers Gate Manager LP 0.12% of their portfolio | 22.5k $3.2m | New |
| Global IMC LLC 0.92% of their portfolio | 21.9k $3.1m | Reduced -12.5k |
| Kathleen S. Wright Associates Inc. 1.97% of their portfolio | 21.6k $3.1m | New |
| Squarepoint Ops LLC 0.02% of their portfolio | 21.0k $3.0m | Added +9.3k |
| TD Asset Management Inc 0.00% of their portfolio | 20.5k $2.9m | Reduced -6.9k |
| UBS Group AG 0.00% of their portfolio | 20.3k $2.9m | Added +13.1k |
| G2 Investment Partners Management LLC 0.70% of their portfolio | 20.0k $2.9m | Added +15.3k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 19.4k $2.8m | Added +13.9k |
| Empowered Funds, LLC 0.10% of their portfolio | 19.0k $2.7m | New |
| EA Series Trust 0.10% of their portfolio | 19.0k $2.7m | First filing |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.02% of their portfolio | 18.9k $2.7m | New |
| CAPITAL FUND MANAGEMENT S.A. 0.04% of their portfolio | 18.5k $2.7m | New |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 16.6k $2.4m | Reduced -9.2k |
| AXIOM INVESTORS LLC /DE 0.03% of their portfolio | 16.4k $2.3m | Added +10.0k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 16.1k $2.3m | New |