As of the latest Form 4 filed Jun 18, 2026.
What Duolingo Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 81 most recent filings for DUOL.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-18 | 2026-06-17 | Chen Stephen C. General Counsel | MExercise | +58.00 | $14.42 | $836.36 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-03 | Shelton James H Director | AAward | +2.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-03 | Clemens Sara Director | AAward | +2.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-03 | Bohutinsky Amy Director | AAward | +2.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-03 | Lilly III John Osborne Director | AAward | +2.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-03 | GORDON WILLIAM B Director | AAward | +2.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-03 | Schlosser Mario Director | AAward | +2.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-03 | Ross Bonnie Director | AAward | +2.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Chen Stephen C. General Counsel | SSale | −700.00 | $114.22 | $80.0K | Yes (planned) | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Chen Stephen C., General Counsel | SSale | −1.28K | $113.27 | $145K | Yes (planned) | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Glance Natalie Chief Engineering Officer | SSale | −1.30K | $114.19 | $148K | Yes (planned) | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Glance Natalie, Chief Engineering Officer | SSale | −2.06K | $113.21 | $233K | Yes (planned) | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Chen Stephen C. General Counsel | SSale | −820.00 | $112.16 | $92.0K | Yes (planned) | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Chen Stephen C., General Counsel | AAward | +24.4K | $112.06 | $2.74M | Yes (planned) | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Glance Natalie Chief Engineering Officer | SSale | −1.93K | $112.16 | $216K | Yes (planned) | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Glance Natalie, Chief Engineering Officer | AAward | +39.1K | $112.06 | $4.38M | Yes (planned) | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Meese Robert Chief Business Officer | SSale | −1.42K | $112.16 | $159K | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-15 | Meese Robert, Chief Business Officer | AAward | +19.5K | $112.06 | $2.19M | No | Form 4 ↗ |
| 2026-05-13 | 2026-05-12 | Chen Stephen C. General Counsel | MExercise | +648.00 | $14.42 | $9.34K | No | Form 4 ↗ |
| 2026-05-13 | 2026-05-11 | von Ahn Luis President & CEO, Co-Founder | GGift | −50.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-13 | 2026-05-11 | von Ahn Luis, President & CEO, Co-Founder | CConvert | +50.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-27 | 2026-03-25 | Munson Gillian Chief Financial Officer | AAward | +134K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Meese Robert Chief Business Officer | MExercise | +20.0K | $22.91 | $458K | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Meese Robert, Chief Business Officer | MExercise | +5.63K | $14.42 | $81.1K | No | Form 4 ↗ |
| 2026-03-16 | 2026-03-13 | Meese Robert, Chief Business Officer | MExercise | +4.38K | $8.15 | $35.7K | No | Form 4 ↗ |
| 2026-03-04 | 2026-03-03 | Shelton James H Director | PPurchase | +5.00K | $99.76 | $499K | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Skaruppa Matthew Chief Financial Officer | SSale | −360.00 | $115.29 | $41.5K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Skaruppa Matthew, Chief Financial Officer | SSale | −1.76K | $114.35 | $202K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Skaruppa Matthew, Chief Financial Officer | SSale | −236.00 | $113.37 | $26.8K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Skaruppa Matthew, Chief Financial Officer | SSale | −1.63K | $112.26 | $183K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Chen Stephen C. General Counsel | SSale | −80.00 | $115.47 | $9.24K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Chen Stephen C., General Counsel | SSale | −520.00 | $114.55 | $59.6K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Chen Stephen C., General Counsel | SSale | −480.00 | $113.95 | $54.7K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Chen Stephen C., General Counsel | SSale | −821.00 | $111.83 | $91.8K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Glance Natalie Chief Engineering Officer | SSale | −360.00 | $115.29 | $41.5K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Glance Natalie, Chief Engineering Officer | SSale | −1.52K | $114.29 | $174K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Glance Natalie, Chief Engineering Officer | SSale | −166.00 | $113.55 | $18.8K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-18 | Glance Natalie, Chief Engineering Officer | SSale | −1.50K | $112.30 | $168K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-17 | Meese Robert Chief Business Officer | SSale | −1.00K | $110.06 | $110K | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-17 | Skaruppa Matthew Chief Financial Officer | SSale | −1.87K | $110.06 | $206K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-17 | Chen Stephen C. General Counsel | SSale | −896.00 | $110.06 | $98.6K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-17 | Glance Natalie Chief Engineering Officer | SSale | −1.74K | $110.06 | $192K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin Chief Tech Officer, Co-Founder | SSale | −200.00 | $231.61 | $46.3K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −600.00 | $230.48 | $138K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −600.00 | $229.52 | $138K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −200.00 | $228.41 | $45.7K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −400.00 | $226.88 | $90.8K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −900.00 | $225.99 | $203K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −300.00 | $224.43 | $67.3K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −1.10K | $223.67 | $246K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −1.20K | $222.82 | $267K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −809.00 | $221.51 | $179K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −2.49K | $220.46 | $549K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | SSale | −1.20K | $219.49 | $263K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Hacker Severin, Chief Tech Officer, Co-Founder | CConvert | +10.0K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew Chief Financial Officer | SSale | −100.00 | $231.75 | $23.2K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −500.00 | $230.52 | $115K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −500.00 | $229.68 | $115K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −200.00 | $227.50 | $45.5K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −200.00 | $226.66 | $45.3K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −800.00 | $225.91 | $181K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −500.00 | $224.19 | $112K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −1.43K | $223.25 | $320K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −500.00 | $222.07 | $111K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −877.00 | $220.96 | $194K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −1.79K | $220.35 | $394K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | SSale | −600.00 | $219.36 | $132K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | Skaruppa Matthew, Chief Financial Officer | MExercise | +8.00K | $14.42 | $115K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis President & CEO, Co-Founder | SSale | −200.00 | $231.83 | $46.4K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −700.00 | $230.76 | $162K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −500.00 | $230.01 | $115K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −400.00 | $228.89 | $91.6K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −300.00 | $227.37 | $68.2K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −900.00 | $226.34 | $204K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −534.00 | $225.45 | $120K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −1.00K | $224.01 | $224K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −1.82K | $223.13 | $407K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −894.00 | $221.83 | $198K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −2.85K | $220.68 | $629K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | SSale | −1.90K | $219.78 | $417K | Yes (planned) | Form 4 ↗ |
| 2024-05-03 | 2024-05-01 | von Ahn Luis, President & CEO, Co-Founder | CConvert | +12.0K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also DUOL’s full analysis or the market-wide insider trading feed. The tabs above jump to DUOL’s other SEC data.
Source: SEC Form 4 filings for DUOL, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.