Duolingo (DUOL)
Duolingo on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as services-prepackaged software.
7.1M
Short interest
settlement 2026-10-15
8.5
Days to cover
+1.8 days vs prior
46.3%
Short share of volume
2026-10-28
78
Fails to deliver
settlement 2026-09-24
Wed 4 Nov
Next earnings
estimated date
-$37.7M
Insider flow, 90 days
0 buys, 26 sells
As of 2026-10-28.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in DUOL is 7,103,345 shares, up 529,356 shares over the last month. Over the last 48 readings it ranged from 1,186,232 shares (15 May 2025) to 8,729,424 shares (13 February 2026). At the reported average volume of 839K shares a day that is 8.5 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 7,103,345 | -0.7% | 839,112 | 8.47 |
| 2026-09-30 | 7,152,857 | +8.8% | 1,064,073 | 6.72 |
| 2026-09-15 | 6,573,989 | -13.2% | 1,323,285 | 4.97 |
| 2026-08-31 | 7,573,914 | +6.8% | 1,058,025 | 7.16 |
| 2026-08-14 | 7,091,179 | -2.4% | 1,574,832 | 4.50 |
| 2026-07-31 | 7,263,743 | -3.1% | 1,004,121 | 7.23 |
| 2026-07-15 | 7,494,489 | +0.7% | 982,814 | 7.63 |
| 2026-06-30 | 7,440,425 | -6.0% | 1,637,652 | 4.54 |
| 2026-06-15 | 7,912,936 | +3.9% | 1,579,947 | 5.01 |
| 2026-05-29 | 7,615,582 | -2.2% | 1,197,098 | 6.36 |
| 2026-05-15 | 7,784,364 | +2.4% | 2,453,941 | 3.17 |
| 2026-04-30 | 7,604,206 | -2.9% | 1,594,098 | 4.77 |
| 2026-04-15 | 7,833,591 | -1.7% | 1,763,739 | 4.44 |
| 2026-03-31 | 7,972,506 | +4.4% | 1,613,937 | 4.94 |
| 2026-03-13 | 7,634,055 | -11.3% | 2,933,867 | 2.60 |
| 2026-02-27 | 8,601,297 | -1.5% | 4,339,043 | 1.98 |
| 2026-02-13 | 8,729,424 | +26.5% | 3,146,213 | 2.77 |
| 2026-01-30 | 6,902,698 | -7.1% | 2,013,293 | 3.43 |
| 2026-01-15 | 7,431,337 | +15.4% | 2,093,574 | 3.55 |
| 2025-12-31 | 6,441,438 | +29.6% | 1,204,086 | 5.35 |
| 2025-12-15 | 4,970,210 | -8.1% | 1,603,642 | 3.10 |
| 2025-11-28 | 5,405,604 | +0.8% | 1,934,934 | 2.79 |
| 2025-11-14 | 5,364,843 | +16.8% | 3,483,471 | 1.54 |
| 2025-10-31 | 4,594,054 | +19.1% | 1,181,405 | 3.89 |
| 2025-10-15 | 3,858,476 | +2.4% | 1,241,566 | 3.11 |
| 2025-09-30 | 3,768,549 | +9.2% | 1,707,483 | 2.21 |
| 2025-09-15 | 3,451,571 | +4.3% | 2,231,264 | 1.55 |
| 2025-08-29 | 3,308,303 | +9.4% | 1,731,918 | 1.91 |
| 2025-08-15 | 3,022,873 | +23.2% | 2,628,717 | 1.15 |
| 2025-07-31 | 2,453,625 | +1.2% | 952,104 | 2.58 |
| 2025-07-15 | 2,423,692 | +5.5% | 832,667 | 2.91 |
| 2025-06-30 | 2,296,712 | +24.0% | 1,095,309 | 2.10 |
| 2025-06-13 | 1,852,681 | +29.2% | 789,916 | 2.35 |
| 2025-05-30 | 1,434,085 | +20.9% | 667,935 | 2.15 |
| 2025-05-15 | 1,186,232 | -6.7% | 1,224,366 | 1.00 |
| 2025-04-30 | 1,270,958 | -8.1% | 796,267 | 1.60 |
| 2025-04-15 | 1,383,198 | -15.3% | 900,208 | 1.54 |
| 2025-03-31 | 1,633,703 | +8.1% | 795,641 | 2.05 |
| 2025-03-14 | 1,511,244 | +22.8% | 1,206,824 | 1.25 |
| 2025-02-28 | 1,231,178 | -14.4% | 1,233,006 | 1.00 |
| 2025-02-14 | 1,437,905 | -0.4% | 761,594 | 1.89 |
| 2025-01-31 | 1,443,633 | +5.7% | 589,336 | 2.45 |
| 2025-01-15 | 1,365,585 | +5.4% | 457,730 | 2.98 |
| 2024-12-31 | 1,295,113 | +5.8% | 492,437 | 2.63 |
| 2024-12-13 | 1,224,693 | -9.4% | 563,629 | 2.17 |
| 2024-11-29 | 1,352,009 | -5.3% | 594,178 | 2.28 |
| 2024-11-15 | 1,427,864 | -18.9% | 640,362 | 2.23 |
| 2024-10-31 | 1,759,569 | -5.5% | 424,114 | 4.15 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 28 October 2026, the short share of DUOL volume is 46.3%, down 25.6 points over the last five sessions. Over the last 30 readings it ranged from 43.0% (20 October 2026) to 73.3% (13 October 2026). The latest reading is 13.0 points below the 30-session average of 59.2%, on 389K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-28 | 180K | 389K | 46.3% | 221 |
| 2026-10-27 | 156K | 270K | 57.7% | 10 |
| 2026-10-26 | 235K | 386K | 61.0% | 31 |
| 2026-10-23 | 128K | 272K | 47.0% | 272 |
| 2026-10-22 | 269K | 413K | 65.0% | 0 |
| 2026-10-21 | 173K | 241K | 71.9% | 118 |
| 2026-10-20 | 86K | 199K | 43.0% | 1,116 |
| 2026-10-19 | 133K | 264K | 50.4% | 0 |
| 2026-10-16 | 196K | 343K | 57.1% | 103 |
| 2026-10-15 | 315K | 607K | 51.8% | 2,892 |
| 2026-10-14 | 240K | 361K | 66.4% | 8 |
| 2026-10-13 | 211K | 288K | 73.3% | 2,391 |
| 2026-10-12 | 172K | 285K | 60.4% | 74 |
| 2026-10-09 | 160K | 247K | 64.9% | 18 |
| 2026-10-08 | 188K | 290K | 64.8% | 76 |
| 2026-10-07 | 192K | 302K | 63.6% | 100 |
| 2026-10-06 | 149K | 257K | 58.2% | 130 |
| 2026-10-05 | 148K | 298K | 49.8% | 32 |
| 2026-10-02 | 198K | 288K | 68.8% | 0 |
| 2026-10-01 | 178K | 290K | 61.3% | 32 |
| 2026-09-30 | 170K | 360K | 47.2% | 301 |
| 2026-09-29 | 281K | 493K | 56.9% | 82 |
| 2026-09-28 | 586K | 822K | 71.2% | 37 |
| 2026-09-25 | 157K | 248K | 63.1% | 2 |
| 2026-09-24 | 258K | 460K | 56.1% | 350 |
| 2026-09-23 | 281K | 444K | 63.3% | 30,130 |
| 2026-09-22 | 231K | 339K | 68.0% | 0 |
| 2026-09-21 | 246K | 510K | 48.2% | 0 |
| 2026-09-18 | 139K | 252K | 55.4% | 0 |
| 2026-09-17 | 177K | 273K | 64.9% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 24 September 2026, the fails-to-deliver balance in DUOL is 78 shares, up 9 shares over the last settlement date. Over the last 30 readings it ranged from 3 shares (5 June 2026) to 57,173 shares (3 August 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-24 | 78 | $145.98 | $11K |
| 2026-09-22 | 69 | $149.42 | $10K |
| 2026-09-21 | 100 | $141.90 | $14K |
| 2026-09-17 | 1,795 | $148.17 | $266K |
| 2026-09-08 | 200 | $154.46 | $31K |
| 2026-09-04 | 23,617 | $158.82 | $3.8M |
| 2026-08-31 | 359 | $146.98 | $53K |
| 2026-08-24 | 1,184 | $146.13 | $173K |
| 2026-08-21 | 78 | $147.03 | $11K |
| 2026-08-14 | 1,315 | $144.10 | $189K |
| 2026-08-10 | 832 | $130.90 | $109K |
| 2026-08-04 | 18,225 | $135.80 | $2.5M |
| 2026-08-03 | 57,173 | $134.81 | $7.7M |
| 2026-07-30 | 1,295 | $140.17 | $182K |
| 2026-07-28 | 784 | $132.82 | $104K |
| 2026-07-22 | 65 | $124.71 | $8K |
| 2026-07-20 | 1,500 | $133.85 | $201K |
| 2026-07-10 | 49,366 | $129.95 | $6.4M |
| 2026-07-08 | 219 | $131.95 | $29K |
| 2026-07-07 | 1,694 | $129.72 | $220K |
| 2026-06-29 | 2,619 | $121.49 | $318K |
| 2026-06-26 | 291 | $119.94 | $35K |
| 2026-06-22 | 22,091 | $125.56 | $2.8M |
| 2026-06-15 | 1,316 | $122.63 | $161K |
| 2026-06-08 | 257 | $109.03 | $28K |
| 2026-06-05 | 3 | $109.15 | $327 |
| 2026-05-28 | 297 | $107.82 | $32K |
| 2026-05-21 | 47 | $106.82 | $5K |
| 2026-05-19 | 171 | $113.24 | $19K |
| 2026-05-18 | 889 | $112.06 | $100K |
Insider trades
SEC Form 4, newest first. JSONInsiders at DUOL reported 26 open-market sells worth $37.7M in the last 90 days and no open-market buys. Latest filing: Bohutinsky Amy (Director) on 2026-10-10.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-10 | Bohutinsky Amy | Director | Grant | 108 | $149.92 | $16K | 8K |
| 2026-10-10 | Lilly III John Osborne | Director | Grant | 98 | $149.92 | $15K | 9K |
| 2026-10-10 | Schlosser Mario | Director | Grant | 116 | $149.92 | $17K | 4K |
| 2026-10-10 | Shelton James H | Director | Grant | 100 | $149.92 | $15K | 12K |
| 2026-10-07 | von Ahn Luis | President & CEO, Co-Founder | Sell | 5K | $153.26 | $784K | 0 |
| 2026-10-07 | von Ahn Luis | President & CEO, Co-Founder | Sell | 30K | $152.47 | $4.6M | 5K |
| 2026-10-07 | von Ahn Luis | President & CEO, Co-Founder | Sell | 55K | $151.52 | $8.3M | 35K |
| 2026-10-07 | von Ahn Luis | President & CEO, Co-Founder | Sell | 20K | $150.63 | $3.0M | 90K |
| 2026-10-07 | von Ahn Luis | President & CEO, Co-Founder | Conversion | 110K | $38.08 | $4.2M | 110K |
| 2026-09-24 | von Ahn Luis | President & CEO, Co-Founder | Sell | 900 | $152.29 | $137K | 0 |
| 2026-09-24 | von Ahn Luis | President & CEO, Co-Founder | Sell | 7K | $151.42 | $1.1M | 900 |
| 2026-09-24 | von Ahn Luis | President & CEO, Co-Founder | Sell | 39K | $150.45 | $5.8M | 8K |
| 2026-09-24 | von Ahn Luis | President & CEO, Co-Founder | Conversion | 47K | $38.08 | $1.8M | 47K |
| 2026-09-22 | von Ahn Luis | President & CEO, Co-Founder | Sell | 3K | $152.02 | $519K | 0 |
| 2026-09-22 | von Ahn Luis | President & CEO, Co-Founder | Sell | 200 | $150.00 | $30K | 3K |
| 2026-09-22 | von Ahn Luis | President & CEO, Co-Founder | Conversion | 4K | $38.08 | $138K | 4K |
| 2026-09-21 | von Ahn Luis | President & CEO, Co-Founder | Sell | 4K | $151.07 | $621K | 0 |
| 2026-09-21 | von Ahn Luis | President & CEO, Co-Founder | Sell | 33K | $150.46 | $5.0M | 4K |
| 2026-09-21 | von Ahn Luis | President & CEO, Co-Founder | Conversion | 9K | $38.08 | $358K | 37K |
| 2026-09-21 | von Ahn Luis | President & CEO, Co-Founder | Conversion | 28K | $14.42 | $403K | 28K |
| 2026-09-16 | von Ahn Luis | President & CEO, Co-Founder | Sell | 1K | $151.54 | $155K | 0 |
| 2026-09-16 | von Ahn Luis | President & CEO, Co-Founder | Sell | 27K | $150.17 | $4.1M | 1K |
| 2026-09-16 | von Ahn Luis | President & CEO, Co-Founder | Conversion | 5K | $38.08 | $200K | 28K |
| 2026-09-16 | von Ahn Luis | President & CEO, Co-Founder | Conversion | 23K | $14.42 | $332K | 23K |
| 2026-09-14 | Chen Stephen C. | General Counsel | Sell | 6K | $150.00 | $895K | 44K |
| 2026-09-14 | Chen Stephen C. | General Counsel | Sell | 2K | $147.43 | $311K | 50K |
| 2026-09-08 | GORDON WILLIAM B | Director | Sell | 100 | $151.64 | $15K | 68K |
| 2026-09-08 | GORDON WILLIAM B | Director | Sell | 200 | $148.68 | $30K | 69K |
| 2026-09-08 | GORDON WILLIAM B | Director | Sell | 3K | $146.58 | $392K | 69K |
| 2026-09-08 | GORDON WILLIAM B | Director | Sell | 3K | $145.91 | $508K | 71K |
| 2026-09-08 | GORDON WILLIAM B | Director | Sell | 3K | $144.59 | $396K | 75K |
| 2026-09-08 | GORDON WILLIAM B | Director | Sell | 800 | $143.83 | $115K | 78K |
| 2026-08-18 | Glance Natalie | Chief Engineering Officer | Sell | 1K | $138.19 | $143K | 169K |
| 2026-08-18 | Glance Natalie | Chief Engineering Officer | Sell | 502 | $137.01 | $69K | 170K |
| 2026-08-17 | Glance Natalie | Chief Engineering Officer | Sell | 3K | $129.13 | $355K | 171K |
| 2026-08-17 | Meese Robert | Chief Business Officer | Sell | 1K | $129.13 | $175K | 169K |
| 2026-08-17 | Chen Stephen C. | General Counsel | Sell | 1K | $129.13 | $132K | 52K |
| 2026-08-10 | KRAWCHECK SALLIE | Director | Grant | 3K | $0.00 | $0 | 5K |
| 2026-08-10 | KRAWCHECK SALLIE | Director | Grant | 1K | $0.00 | $0 | 1K |
| 2026-07-10 | Shelton James H | Director | Grant | 120 | $124.76 | $15K | 12K |
| 2026-07-10 | Schlosser Mario | Director | Grant | 140 | $124.76 | $17K | 4K |
| 2026-07-10 | Lilly III John Osborne | Director | Grant | 118 | $124.76 | $15K | 9K |
| 2026-07-10 | Bohutinsky Amy | Director | Grant | 130 | $124.76 | $16K | 8K |
| 2026-06-17 | Chen Stephen C. | General Counsel | Exercise or conversion | 58 | $14.42 | $836 | 53K |
| 2026-06-03 | Shelton James H | Director | Grant | 2K | $0.00 | $0 | 12K |
| 2026-06-03 | Lilly III John Osborne | Director | Grant | 2K | $0.00 | $0 | 9K |
| 2026-06-03 | GORDON WILLIAM B | Director | Grant | 2K | $0.00 | $0 | 78K |
| 2026-06-03 | Schlosser Mario | Director | Grant | 2K | $0.00 | $0 | 4K |
| 2026-06-03 | Ross Bonnie | Director | Grant | 2K | $0.00 | $0 | 3K |
| 2026-06-03 | Clemens Sara | Director | Grant | 2K | $0.00 | $0 | 6K |
| 2026-06-03 | Bohutinsky Amy | Director | Grant | 2K | $0.00 | $0 | 8K |
| 2026-05-18 | Glance Natalie | Chief Engineering Officer | Sell | 1K | $114.19 | $148K | 173K |
| 2026-05-18 | Glance Natalie | Chief Engineering Officer | Sell | 2K | $113.21 | $233K | 175K |
| 2026-05-18 | Chen Stephen C. | General Counsel | Sell | 700 | $114.22 | $80K | 53K |
| 2026-05-18 | Chen Stephen C. | General Counsel | Sell | 1K | $113.27 | $145K | 54K |
| 2026-05-15 | Glance Natalie | Chief Engineering Officer | Sell | 2K | $112.16 | $216K | 177K |
| 2026-05-15 | Glance Natalie | Chief Engineering Officer | Grant | 39K | $112.06 | $4.4M | 179K |
| 2026-05-15 | Meese Robert | Chief Business Officer | Sell | 1K | $112.16 | $159K | 171K |
| 2026-05-15 | Meese Robert | Chief Business Officer | Grant | 20K | $112.06 | $2.2M | 172K |
| 2026-05-15 | Chen Stephen C. | General Counsel | Sell | 820 | $112.16 | $92K | 55K |
| 2026-05-15 | Chen Stephen C. | General Counsel | Grant | 24K | $112.06 | $2.7M | 56K |
| 2026-05-12 | Chen Stephen C. | General Counsel | Exercise or conversion | 648 | $14.42 | $9K | 31K |
| 2026-05-11 | von Ahn Luis | President & CEO, Co-Founder | Gift | 50K | $0.00 | $0 | 0 |
| 2026-05-11 | von Ahn Luis | President & CEO, Co-Founder | Conversion | 50K | $0.00 | $0 | 50K |
| 2026-03-25 | Munson Gillian | Chief Financial Officer | Grant | 134K | $0.00 | $0 | 138K |
| 2026-03-13 | Meese Robert | Chief Business Officer | Exercise or conversion | 20K | $22.91 | $458K | 153K |
| 2026-03-13 | Meese Robert | Chief Business Officer | Exercise or conversion | 6K | $14.42 | $81K | 133K |
| 2026-03-13 | Meese Robert | Chief Business Officer | Exercise or conversion | 4K | $8.15 | $36K | 127K |
| 2026-03-03 | Shelton James H | Director | Buy | 5K | $99.76 | $499K | 10K |
| 2026-02-27 | Glance Natalie | Chief Engineering Officer | Exercise or conversion | 12K | $7.11 | $88K | 140K |
| 2026-02-27 | Glance Natalie | Chief Engineering Officer | Exercise or conversion | 12K | $5.00 | $59K | 127K |
| 2026-02-18 | Skaruppa Matthew | Chief Financial Officer | Sell | 360 | $115.29 | $42K | 32K |
| 2026-02-18 | Skaruppa Matthew | Chief Financial Officer | Sell | 2K | $114.35 | $202K | 32K |
| 2026-02-18 | Skaruppa Matthew | Chief Financial Officer | Sell | 236 | $113.37 | $27K | 34K |
| 2026-02-18 | Skaruppa Matthew | Chief Financial Officer | Sell | 2K | $112.26 | $183K | 34K |
| 2026-02-18 | Glance Natalie | Chief Engineering Officer | Sell | 360 | $115.29 | $42K | 115K |
| 2026-02-18 | Glance Natalie | Chief Engineering Officer | Sell | 2K | $114.29 | $174K | 116K |
| 2026-02-18 | Glance Natalie | Chief Engineering Officer | Sell | 166 | $113.55 | $19K | 117K |
| 2026-02-18 | Glance Natalie | Chief Engineering Officer | Sell | 1K | $112.30 | $168K | 117K |
| 2026-02-18 | Chen Stephen C. | General Counsel | Sell | 80 | $115.47 | $9K | 31K |
| 2026-02-18 | Chen Stephen C. | General Counsel | Sell | 520 | $114.55 | $60K | 31K |
| 2026-02-18 | Chen Stephen C. | General Counsel | Sell | 480 | $113.95 | $55K | 31K |
| 2026-02-18 | Chen Stephen C. | General Counsel | Sell | 821 | $111.83 | $92K | 32K |
| 2026-02-17 | Meese Robert | Chief Business Officer | Sell | 1K | $110.06 | $110K | 123K |
| 2026-02-17 | Skaruppa Matthew | Chief Financial Officer | Sell | 2K | $110.06 | $206K | 36K |
| 2026-02-17 | Glance Natalie | Chief Engineering Officer | Sell | 2K | $110.06 | $192K | 119K |
| 2026-02-17 | Chen Stephen C. | General Counsel | Sell | 896 | $110.06 | $99K | 32K |
| 2025-12-29 | Chen Stephen C. | General Counsel | Exercise or conversion | 2K | $14.42 | $26K | 33K |
| 2025-12-08 | Hacker Severin | Chief Tech Officer, Co-Founder | Gift | 50K | $0.00 | $0 | 72 |
| 2025-12-08 | Hacker Severin | Chief Tech Officer, Co-Founder | Conversion | 50K | $0.00 | $0 | 50K |
| 2025-12-05 | Glance Natalie | Chief Engineering Officer | Exercise or conversion | 10K | $5.00 | $48K | 121K |
| 2025-11-19 | Hacker Severin | Chief Tech Officer, Co-Founder | Sell | 280 | $176.68 | $49K | 72 |
| 2025-11-19 | Hacker Severin | Chief Tech Officer, Co-Founder | Sell | 435 | $175.46 | $76K | 352 |
| 2025-11-19 | Hacker Severin | Chief Tech Officer, Co-Founder | Sell | 3K | $174.61 | $539K | 787 |
| 2025-11-19 | Hacker Severin | Chief Tech Officer, Co-Founder | Sell | 760 | $173.74 | $132K | 4K |
| 2025-11-19 | Hacker Severin | Chief Tech Officer, Co-Founder | Sell | 1K | $172.39 | $221K | 5K |
| 2025-11-19 | Hacker Severin | Chief Tech Officer, Co-Founder | Sell | 2K | $171.50 | $345K | 6K |
| 2025-11-19 | Hacker Severin | Chief Tech Officer, Co-Founder | Sell | 1K | $170.55 | $171K | 8K |
| 2025-11-19 | Hacker Severin | Chief Tech Officer, Co-Founder | Sell | 1K | $169.57 | $194K | 9K |
| 2025-11-19 | Hacker Severin | Chief Tech Officer, Co-Founder | Conversion | 10K | $38.08 | $381K | 10K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON35 Form 144 notices on file for DUOL worth $67.0M at the prices reported; 13 in the last 90 days worth $46.3M. Latest: LUIS VON AHN ARELLANO filed on 2026-10-07 to sell 110,046 shares ($16.3M) from 2026-10-07.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-10-07 | LUIS VON AHN ARELLANODirector, Officer, 10% Stockholder | 110K | $16.3M | 0.272% | 2026-10-07 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-24 | LUIS VON AHN ARELLANODirector, Officer, 10% Stockholder | 47K | $6.8M | 0.116% | 2026-09-24 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-22 | LUIS VON AHN ARELLANODirector, Officer, 10% Stockholder | 4K | $540K | 0.009% | 2026-09-22 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-21 | LUIS VON AHN ARELLANODirector, Officer, 10% Stockholder | 37K | $5.3M | 0.093% | 2026-09-21 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-21 | LUIS VON AHN FOUNDATIONDirector, Officer, 10% Stockholder | 35K | $5.0M | 0.087% | 2026-09-21 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-16 | LUIS VON AHN FOUNDATIONDirector, Officer, 10% Stockholder | 19K | $2.9M | 0.047% | 2026-09-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-16 | LUIS VON AHN ARELLANODirector, Officer, 10% Stockholder | 28K | $4.4M | 0.070% | 2026-09-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-14 | STEPHEN CHENOfficer | 8K | $1.2M | 0.020% | 2026-09-14 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-09-08 | WILLIAM B. GORDONDirector | 20K | $3.1M | 0.050% | 2026-09-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-18 | NATALIE GLANCEOfficer | 2K | $200K | 0.004% | 2026-08-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-17 | NATALIE GLANCEOfficer | 3K | $355K | 0.007% | 2026-08-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-17 | ROBERT MEESEOfficer | 1K | $175K | 0.003% | 2026-08-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-08-17 | STEPHEN CHENOfficer | 1K | $132K | 0.003% | 2026-08-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-18 | NATALIE GLANCEOfficer | 3K | $377K | 0.008% | 2026-05-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-18 | STEPHEN CHENOfficer | 2K | $222K | 0.005% | 2026-05-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-15 | ROBERT MEESEOfficer | 1K | $159K | 0.004% | 2026-05-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-15 | NATALIE GLANCEOfficer | 2K | $216K | 0.005% | 2026-05-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-05-15 | STEPHEN CHENOfficer | 820 | $92K | 0.002% | 2026-05-15 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-18 | MATTHEW SKARUPPAOfficer | 4K | $447K | 0.010% | 2026-02-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-18 | NATALIE GLANCEOfficer | 4K | $397K | 0.009% | 2026-02-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-18 | STEPHEN CHENOfficer | 2K | $213K | 0.005% | 2026-02-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-17 | MATTHEW SKARUPPAOfficer | 2K | $206K | 0.005% | 2026-02-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-17 | NATALIE GLANCEOfficer | 2K | $192K | 0.004% | 2026-02-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-17 | ROBERT MEESEOfficer | 1K | $110K | 0.002% | 2026-02-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-02-17 | STEPHEN CHENOfficer | 896 | $99K | 0.002% | 2026-02-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-12 | THE SEVERIN HACKER FOUNDATIONC/O PHILIP BARTELSDirector, Officer, 10% Stockholder | 10K | $2.0M | 0.025% | 2025-12-12 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-18 | MATTHEW SKARUPPAOfficer | 3K | $545K | 0.008% | 2025-11-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-18 | NATALIE GLANCEOfficer | 2K | $441K | 0.006% | 2025-11-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-18 | STEPHEN CHENOfficer | 2K | $270K | 0.004% | 2025-11-18 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-17 | ROBERT MEESEOfficer | 1K | $257K | 0.004% | 2025-11-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-17 | NATALIE GLANCEOfficer | 3K | $451K | 0.006% | 2025-11-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-17 | MATTHEW SKARUPPAOfficer | 3K | $498K | 0.007% | 2025-11-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-11-17 | STEPHEN CHENOfficer | 1K | $228K | 0.003% | 2025-11-17 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-10-08 | LUIS VON AHN FOUNDATIONDirector, Officer, 10% Stockholder | 1K | $320K | 0.003% | 2025-10-08 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-10-06 | SEVERIN HACKERDirector, Officer, 10% Stockholder | 40K | $12.9M | 0.101% | 2025-10-06 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON4 holders report 5% or more of DUOL in their latest filing, all on Schedule 13G (passive). The largest reported stake is BAILLIE GIFFORD & CO at 11.3% of the class (4,554,894 shares), filed 2026-10-20 for an event on 2026-09-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-20 | 13G/Ano. 11 | BAILLIE GIFFORD & COinvestment adviser | 4.6M | 11.3% | 2026-09-30 |
| 2026-08-12 | 13G | AQR Capital Management, LLCinvestment adviser | 2.3M | 5.8% | 2026-06-30 |
| 2026-08-12 | 13G | AQR Capital Management Holdings, LLCparent holding company | 2.3M | 5.8% | 2026-06-30 |
| 2026-07-31 | 13G | Vanguard Capital Managementinvestment adviser | 2.1M | 5.1% | 2026-06-30 |
| 2026-05-14 | 13G/Ano. 1 | Capital World Investorsinvestment adviser | 0 | 0.0% | 2026-03-31 |
| 2026-05-06 | 13G/Ano. 5 | Abigail P. Johnsonindividual | 1.1M | 2.7% | 2026-03-31 |
| 2026-05-06 | 13G/Ano. 5 | FMR LLCparent holding company | 1.1M | 2.7% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 2 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding DUOL at their latest 13F. JSON7 of the 30 tracked managers held DUOL at their latest 13F, $536.0M in total at quarter-end prices. AQR Capital Management is the largest at $268.3M (0.1% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 4 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 2.3M | $268.3M | 0.09% | +2.2M |
| Two Sigma Investments | 2026-06-30 | 1.6M | $187.4M | 0.14% | +234K |
| Point72 Asset Management | 2026-06-30 | 215K | $24.7M | 0.03% | new |
| Renaissance Technologies | 2026-06-30 | 212K | $24.3M | 0.03% | -392K |
| D. E. Shaw & Co. | 2026-06-30 | 197K | $22.6M | 0.01% | -84K |
| Millennium Management | 2026-06-30 | 72K | $8.3M | 0.00% | -259K |
| Citadel Advisors | 2026-06-30 | 3K | $300K | 0.00% | -271K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q2 FY 2026 (quarter ended 2026-06-30) Duolingo reported revenue of $298.5M, up 18.3% from the same quarter a year earlier, and net income of $33.2M (0.66 diluted EPS). In FY 2025 it generated $387.8M of operating cash flow.
- Cash
- $1.18B
- Equity
- $1.41B
- Total assets
- $2.07B
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $298.5M | $33.2M | 11.1% | 0.66 |
| Q1 FY 2026 | 2026-03-31 | $292.0M | $43.5M | 14.9% | 0.89 |
| Q4 FY 2025derived | 2025-12-31 | $282.9M | $42.0M | 14.8% | n/a |
| Q3 FY 2025 | 2025-09-30 | $271.7M | $292.2M | 107.5% | 5.95 |
| Q2 FY 2025 | 2025-06-30 | $252.3M | $44.8M | 17.8% | 0.91 |
| Q1 FY 2025 | 2025-03-31 | $230.7M | $35.1M | 15.2% | 0.72 |
| Q4 FY 2024derived | 2024-12-31 | $209.6M | $13.9M | 6.6% | n/a |
| Q3 FY 2024 | 2024-09-30 | $192.6M | $23.4M | 12.1% | 0.49 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $1.04B | $414.1M | $387.8M | $18.1M | n/a | n/a |
| FY 2024 | 2024-12-31 | $748.0M | $88.6M | $285.5M | $12.1M | n/a | n/a |
| FY 2023 | 2023-12-31 | $531.1M | $16.1M | $153.6M | $3.2M | $0 | n/a |
| FY 2022 | 2022-12-31 | $369.5M | -$59.6M | $53.7M | $5.6M | $0 | n/a |
| FY 2021 | 2021-12-31 | $250.8M | -$60.1M | $9.2M | $3.6M | $868K | n/a |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30.
What this page is
Duolingo in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Duolingo (DUOL), SEC CIK 1562088, listed on Nasdaq, classified by the SEC as services-prepackaged software. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-28.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-24.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-10-07.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-10-20.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-05.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-10.JSON and CSV
- Company record
- EDGAR filing index for CIK 1562088Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as services-prepackaged software
Other company pages
Datasets
Frequently Asked Questions
How much of DUOL is sold short?
7,103,345 shares were held short at the 2026-10-15 settlement, 8.5 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is DUOL's daily short volume?
On 2026-10-28, 179,825 of the 388,575 DUOL shares reported to FINRA were sold short, 46.3% of the day's reported volume. Short volume is a flow for one day, not a position.
Does DUOL have fails to deliver?
The SEC's latest file shows 78 DUOL shares failed to deliver at settlement 2026-09-24. Fails are reported per settlement date and published twice a month with a lag.
Are DUOL insiders buying or selling?
Insiders at DUOL reported 26 open-market sells worth $37.7M in the last 90 days and no open-market buys. Latest filing: Bohutinsky Amy (Director) on 2026-10-10.
Have DUOL insiders filed to sell?
35 Form 144 notices on file for DUOL worth $67.0M at the prices reported; 13 in the last 90 days worth $46.3M. Latest: LUIS VON AHN ARELLANO filed on 2026-10-07 to sell 110,046 shares ($16.3M) from 2026-10-07.
Who owns 5% or more of DUOL?
4 holders report 5% or more of DUOL in their latest filing, all on Schedule 13G (passive). The largest reported stake is BAILLIE GIFFORD & CO at 11.3% of the class (4,554,894 shares), filed 2026-10-20 for an event on 2026-09-30.
What did DUOL report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Duolingo reported revenue of $298.5M, up 18.3% from the same quarter a year earlier, and net income of $33.2M (0.66 diluted EPS). In FY 2025 it generated $387.8M of operating cash flow.
Which tracked 13F managers own DUOL?
7 of the 30 tracked 13F managers held DUOL shares at their latest filing, $536.0M in all. The largest: Cliff Asness's AQR Capital Management (2.3M shares, $268.3M), Two Sigma Investments (1.6M shares, $187.4M), Steve Cohen's Point72 Asset Management (215K shares, $24.7M), Renaissance Technologies (212K shares, $24.3M), D. E. Shaw & Co. (197K shares, $22.6M), Izzy Englander's Millennium Management (72K shares, $8.3M). The table above lists all 7.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.