Follow the people · Insider
Stephen C. Chen
Stephen C. Chen files insider transactions with the SEC as a general counsel of Duolingo (DUOL). We hold 5 disclosed purchases and sales filed since 22 September 2021, 1 of them in the last 90 days.
- Files forDUOL
- Disclosed buys and sells5 in all, 1 in the last 90 days
- Last disclosure19 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 15 August 2021 — 17 August 2026General Counsel · Duolingo (DUOL)147 Form 4 lines · source: SEC Form 4
Everything they disclosed
120 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 1,024 shares of DuolingoSEC Form 419 August 2026Class A Common Stock · traded 17 August 2026 · filed 19 August 2026
- exercised options over 58 shares of DuolingoSEC Form 418 June 2026Class A Common Stock · traded 17 June 2026 · filed 18 June 2026
- exercised options over 58 shares of Duolingo (a derivative holding)SEC Form 418 June 2026Stock Option (Right to Buy) · traded 17 June 2026 · filed 18 June 2026
- was granted 24,411 shares of DuolingoSEC Form 419 May 2026Class A Common Stock · traded 15 May 2026 · filed 19 May 2026
- ▼ sold on the open market 820 shares of DuolingoSEC Form 419 May 2026Class A Common Stock · traded 15 May 2026 · filed 19 May 2026
- ▼ sold on the open market 1,277 shares of DuolingoSEC Form 419 May 2026Class A Common Stock · traded 18 May 2026 · filed 19 May 2026
- ▼ sold on the open market 700 shares of DuolingoSEC Form 419 May 2026Class A Common Stock · traded 18 May 2026 · filed 19 May 2026
- exercised options over 648 shares of DuolingoSEC Form 413 May 2026Class A Common Stock · traded 12 May 2026 · filed 13 May 2026
- exercised options over 648 shares of Duolingo (a derivative holding)SEC Form 413 May 2026Stock Option (Right to Buy) · traded 12 May 2026 · filed 13 May 2026
- ▼ sold on the open market 896 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 17 February 2026 · filed 20 February 2026
- ▼ sold on the open market 821 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 480 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 520 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 80 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 896 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 17 February 2026 · filed 20 February 2026
- ▼ sold on the open market 821 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 480 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 520 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 18 February 2026 · filed 20 February 2026
- ▼ sold on the open market 80 shares of DuolingoSEC Form 420 February 2026Class A Common Stock · traded 18 February 2026 · filed 20 February 2026
- exercised options over 1,800 shares of Duolingo (a derivative holding)SEC Form 430 December 2025Stock Option (Right to Buy) · traded 29 December 2025 · filed 30 December 2025
- exercised options over 1,800 shares of DuolingoSEC Form 430 December 2025Class A Common Stock · traded 29 December 2025 · filed 30 December 2025
- ▼ sold on the open market 1,282 shares of DuolingoSEC Form 419 November 2025Class A Common Stock · traded 17 November 2025 · filed 19 November 2025
- ▼ sold on the open market 120 shares of DuolingoSEC Form 419 November 2025Class A Common Stock · traded 18 November 2025 · filed 19 November 2025
- ▼ sold on the open market 594 shares of DuolingoSEC Form 419 November 2025Class A Common Stock · traded 18 November 2025 · filed 19 November 2025
- ▼ sold on the open market 320 shares of DuolingoSEC Form 419 November 2025Class A Common Stock · traded 18 November 2025 · filed 19 November 2025
- ▼ sold on the open market 480 shares of DuolingoSEC Form 419 November 2025Class A Common Stock · traded 18 November 2025 · filed 19 November 2025
- exercised options over 1,700 shares of Duolingo (a derivative holding)SEC Form 419 September 2025Stock Option (Right to Buy) · traded 18 September 2025 · filed 19 September 2025
- exercised options over 1,700 shares of DuolingoSEC Form 419 September 2025Class A Common Stock · traded 18 September 2025 · filed 19 September 2025
- ▼ sold on the open market 1,515 shares of DuolingoSEC Form 428 August 2025Class A Common Stock · traded 26 August 2025 · filed 28 August 2025
- ▼ sold on the open market 1,282 shares of DuolingoSEC Form 418 August 2025Class A Common Stock · traded 15 August 2025 · filed 18 August 2025
- gave away 750 shares of DuolingoSEC Form 415 August 2025Class A Common Stock · traded 15 August 2025 · filed 15 August 2025
- ▼ sold on the open market 1,268 shares of DuolingoSEC Form 419 May 2025Class A Common Stock · traded 16 May 2025 · filed 19 May 2025
- ▼ sold on the open market 300 shares of DuolingoSEC Form 419 May 2025Class A Common Stock · traded 16 May 2025 · filed 19 May 2025
- ▼ sold on the open market 300 shares of DuolingoSEC Form 419 May 2025Class A Common Stock · traded 16 May 2025 · filed 19 May 2025
- ▼ sold on the open market 467 shares of DuolingoSEC Form 419 May 2025Class A Common Stock · traded 16 May 2025 · filed 19 May 2025
- ▼ sold on the open market 100 shares of DuolingoSEC Form 419 May 2025Class A Common Stock · traded 16 May 2025 · filed 19 May 2025
- ▼ sold on the open market 200 shares of DuolingoSEC Form 419 May 2025Class A Common Stock · traded 16 May 2025 · filed 19 May 2025
- was granted 5,443 shares of DuolingoSEC Form 416 May 2025Class A Common Stock · traded 15 May 2025 · filed 16 May 2025
- ▼ sold on the open market 1,257 shares of DuolingoSEC Form 416 May 2025Class A Common Stock · traded 15 May 2025 · filed 16 May 2025
- ▼ sold on the open market 1,166 shares of DuolingoSEC Form 419 February 2025Class A Common Stock · traded 18 February 2025 · filed 19 February 2025
- ▼ sold on the open market 898 shares of DuolingoSEC Form 419 February 2025Class A Common Stock · traded 18 February 2025 · filed 19 February 2025
- exercised options over 1,331 shares of Duolingo (a derivative holding)SEC Form 47 February 2025Stock Option (Right to Buy) · traded 6 February 2025 · filed 7 February 2025
- exercised options over 1,331 shares of DuolingoSEC Form 47 February 2025Class A Common Stock · traded 6 February 2025 · filed 7 February 2025
- exercised options over 3,700 shares of Duolingo (a derivative holding)SEC Form 420 December 2024Stock Option (Right to Buy) · traded 19 December 2024 · filed 20 December 2024
- exercised options over 3,700 shares of DuolingoSEC Form 420 December 2024Class A Common Stock · traded 19 December 2024 · filed 20 December 2024
- ▼ sold on the open market 275 shares of DuolingoSEC Form 420 November 2024Class A Common Stock · traded 18 November 2024 · filed 20 November 2024
- ▼ sold on the open market 1,767 shares of DuolingoSEC Form 420 November 2024Class A Common Stock · traded 18 November 2024 · filed 20 November 2024
- ▼ sold on the open market 400 shares of DuolingoSEC Form 420 November 2024Class A Common Stock · traded 18 November 2024 · filed 20 November 2024
- ▼ sold on the open market 200 shares of DuolingoSEC Form 420 November 2024Class A Common Stock · traded 18 November 2024 · filed 20 November 2024
- ▼ sold on the open market 1,249 shares of DuolingoSEC Form 418 November 2024Class A Common Stock · traded 15 November 2024 · filed 18 November 2024
- exercised options over 7,382 shares of Duolingo (a derivative holding)SEC Form 43 September 2024Stock Option (Right to Buy) · traded 30 August 2024 · filed 3 September 2024
- exercised options over 7,382 shares of DuolingoSEC Form 43 September 2024Class A Common Stock · traded 30 August 2024 · filed 3 September 2024
- ▼ sold on the open market 1,363 shares of DuolingoSEC Form 43 September 2024Class A Common Stock · traded 30 August 2024 · filed 3 September 2024
- ▼ sold on the open market 3,173 shares of DuolingoSEC Form 43 September 2024Class A Common Stock · traded 30 August 2024 · filed 3 September 2024
- ▼ sold on the open market 2,815 shares of DuolingoSEC Form 43 September 2024Class A Common Stock · traded 30 August 2024 · filed 3 September 2024
- ▼ sold on the open market 2,977 shares of DuolingoSEC Form 43 September 2024Class A Common Stock · traded 30 August 2024 · filed 3 September 2024
- ▼ sold on the open market 5,677 shares of DuolingoSEC Form 43 September 2024Class A Common Stock · traded 30 August 2024 · filed 3 September 2024
- ▼ sold on the open market 3,459 shares of DuolingoSEC Form 43 September 2024Class A Common Stock · traded 30 August 2024 · filed 3 September 2024
- ▼ sold on the open market 1,249 shares of DuolingoSEC Form 416 August 2024Class A Common Stock · traded 15 August 2024 · filed 16 August 2024
- exercised options over 6,715 shares of Duolingo (a derivative holding)SEC Form 42 July 2024Stock Option (Right to Buy) · traded 28 June 2024 · filed 2 July 2024
- exercised options over 6,715 shares of DuolingoSEC Form 42 July 2024Class A Common Stock · traded 28 June 2024 · filed 2 July 2024
- ▼ sold on the open market 988 shares of DuolingoSEC Form 416 May 2024Class A Common Stock · traded 15 May 2024 · filed 16 May 2024
- was granted 9,117 shares of DuolingoSEC Form 416 May 2024Class A Common Stock · traded 15 May 2024 · filed 16 May 2024
- ▼ sold on the open market 988 shares of DuolingoSEC Form 420 February 2024Class A Common Stock · traded 15 February 2024 · filed 20 February 2024
- exercised options over 2,000 shares of Duolingo (a derivative holding)SEC Form 412 February 2024Stock Option (Right to Buy) · traded 9 February 2024 · filed 12 February 2024
- exercised options over 2,000 shares of DuolingoSEC Form 412 February 2024Class A Common Stock · traded 9 February 2024 · filed 12 February 2024
- ▼ sold on the open market 2,000 shares of DuolingoSEC Form 412 February 2024Class A Common Stock · traded 9 February 2024 · filed 12 February 2024
- exercised options over 18,000 shares of Duolingo (a derivative holding)SEC Form 45 January 2024Stock Option (Right to Buy) · traded 4 January 2024 · filed 5 January 2024
- exercised options over 18,000 shares of DuolingoSEC Form 45 January 2024Class A Common Stock · traded 4 January 2024 · filed 5 January 2024
- ▼ sold on the open market 5,396 shares of DuolingoSEC Form 45 January 2024Class A Common Stock · traded 4 January 2024 · filed 5 January 2024
- ▼ sold on the open market 3,840 shares of DuolingoSEC Form 45 January 2024Class A Common Stock · traded 4 January 2024 · filed 5 January 2024
- ▼ sold on the open market 1,586 shares of DuolingoSEC Form 45 January 2024Class A Common Stock · traded 4 January 2024 · filed 5 January 2024
- ▼ sold on the open market 4,722 shares of DuolingoSEC Form 45 January 2024Class A Common Stock · traded 4 January 2024 · filed 5 January 2024
- ▼ sold on the open market 2,091 shares of DuolingoSEC Form 45 January 2024Class A Common Stock · traded 4 January 2024 · filed 5 January 2024
- ▼ sold on the open market 365 shares of DuolingoSEC Form 45 January 2024Class A Common Stock · traded 4 January 2024 · filed 5 January 2024
- ▼ sold on the open market 988 shares of DuolingoSEC Form 416 November 2023Class A Common Stock · traded 15 November 2023 · filed 16 November 2023
- exercised options over 5,325 shares of Duolingo (a derivative holding)SEC Form 412 September 2023Stock Option (Right to Buy) · traded 8 September 2023 · filed 12 September 2023
- exercised options over 8,842 shares of Duolingo (a derivative holding)SEC Form 412 September 2023Stock Option (Right to Buy) · traded 11 September 2023 · filed 12 September 2023
- exercised options over 5,325 shares of DuolingoSEC Form 412 September 2023Class A Common Stock · traded 8 September 2023 · filed 12 September 2023
- ▼ sold on the open market 5,325 shares of DuolingoSEC Form 412 September 2023Class A Common Stock · traded 8 September 2023 · filed 12 September 2023
- exercised options over 8,842 shares of DuolingoSEC Form 412 September 2023Class A Common Stock · traded 11 September 2023 · filed 12 September 2023
- ▼ sold on the open market 8,742 shares of DuolingoSEC Form 412 September 2023Class A Common Stock · traded 11 September 2023 · filed 12 September 2023
- ▼ sold on the open market 100 shares of DuolingoSEC Form 412 September 2023Class A Common Stock · traded 11 September 2023 · filed 12 September 2023
- ▼ sold on the open market 988 shares of DuolingoSEC Form 417 August 2023Class A Common Stock · traded 15 August 2023 · filed 17 August 2023
- was granted 11,125 shares of DuolingoSEC Form 417 May 2023Class A Common Stock · traded 15 May 2023 · filed 17 May 2023
- ▼ sold on the open market 669 shares of DuolingoSEC Form 416 May 2023Class A Common Stock · traded 15 May 2023 · filed 16 May 2023
- exercised options over 9,252 shares of Duolingo (a derivative holding)SEC Form 422 March 2023Stock Option (Right to Buy) · traded 21 March 2023 · filed 22 March 2023
- exercised options over 9,252 shares of DuolingoSEC Form 422 March 2023Class A Common Stock · traded 21 March 2023 · filed 22 March 2023
- ▼ sold on the open market 9,252 shares of DuolingoSEC Form 422 March 2023Class A Common Stock · traded 21 March 2023 · filed 22 March 2023
- exercised options over 10,748 shares of Duolingo (a derivative holding)SEC Form 48 March 2023Stock Option (Right to Buy) · traded 7 March 2023 · filed 8 March 2023
- exercised options over 10,748 shares of DuolingoSEC Form 48 March 2023Class A Common Stock · traded 7 March 2023 · filed 8 March 2023
- ▼ sold on the open market 10,748 shares of DuolingoSEC Form 48 March 2023Class A Common Stock · traded 7 March 2023 · filed 8 March 2023
- ▼ sold on the open market 484 shares of DuolingoSEC Form 417 February 2023Class A Common Stock · traded 15 February 2023 · filed 17 February 2023
- ▼ sold on the open market 674 shares of DuolingoSEC Form 417 November 2022Class A Common Stock · traded 15 November 2022 · filed 17 November 2022
- ▼ sold on the open market 673 shares of DuolingoSEC Form 417 August 2022Class A Common Stock · traded 15 August 2022 · filed 17 August 2022
- exercised options over 25,358 shares of Duolingo (a derivative holding)SEC Form 427 June 2022Stock Option (Right to Buy) · traded 24 June 2022 · filed 27 June 2022
- exercised options over 25,358 shares of DuolingoSEC Form 427 June 2022Class A Common Stock · traded 24 June 2022 · filed 27 June 2022
- ▼ sold on the open market 7,348 shares of DuolingoSEC Form 427 June 2022Class A Common Stock · traded 24 June 2022 · filed 27 June 2022
- ▼ sold on the open market 10,712 shares of DuolingoSEC Form 427 June 2022Class A Common Stock · traded 24 June 2022 · filed 27 June 2022
- ▼ sold on the open market 6,201 shares of DuolingoSEC Form 427 June 2022Class A Common Stock · traded 24 June 2022 · filed 27 June 2022
- ▼ sold on the open market 1,097 shares of DuolingoSEC Form 427 June 2022Class A Common Stock · traded 24 June 2022 · filed 27 June 2022
- exercised options over 10,535 shares of Duolingo (a derivative holding)SEC Form 422 June 2022Stock Option (Right to Buy) · traded 21 June 2022 · filed 22 June 2022
- exercised options over 10,535 shares of DuolingoSEC Form 422 June 2022Class A Common Stock · traded 21 June 2022 · filed 22 June 2022
- ▼ sold on the open market 10,535 shares of DuolingoSEC Form 422 June 2022Class A Common Stock · traded 21 June 2022 · filed 22 June 2022
- exercised options over 4,007 shares of Duolingo (a derivative holding)SEC Form 410 June 2022Stock Option (Right to Buy) · traded 8 June 2022 · filed 10 June 2022
- exercised options over 100 shares of Duolingo (a derivative holding)SEC Form 410 June 2022Stock Option (Right to Buy) · traded 9 June 2022 · filed 10 June 2022
- exercised options over 4,007 shares of DuolingoSEC Form 410 June 2022Class A Common Stock · traded 8 June 2022 · filed 10 June 2022
- ▼ sold on the open market 4,007 shares of DuolingoSEC Form 410 June 2022Class A Common Stock · traded 8 June 2022 · filed 10 June 2022
- exercised options over 100 shares of DuolingoSEC Form 410 June 2022Class A Common Stock · traded 9 June 2022 · filed 10 June 2022
- ▼ sold on the open market 100 shares of DuolingoSEC Form 410 June 2022Class A Common Stock · traded 9 June 2022 · filed 10 June 2022
- ▼ sold on the open market 75 shares of DuolingoSEC Form 418 May 2022Class A Common Stock · traded 16 May 2022 · filed 18 May 2022
- was granted 19,065 shares of DuolingoSEC Form 417 May 2022Class A Common Stock · traded 13 May 2022 · filed 17 May 2022
- exercised options over 5,000 shares of Duolingo (a derivative holding)SEC Form 42 March 2022Stock Option (Right to Buy) · traded 28 February 2022 · filed 2 March 2022
- exercised options over 5,000 shares of DuolingoSEC Form 42 March 2022Class A Common Stock · traded 28 February 2022 · filed 2 March 2022
- ▼ sold on the open market 14 shares of DuolingoSEC Form 424 February 2022Class A Common Stock · traded 15 February 2022 · filed 24 February 2022
- ▼ sold on the open market 27 shares of DuolingoSEC Form 424 February 2022Class A Common Stock · traded 15 February 2022 · filed 24 February 2022
- ▼ sold on the open market 17 shares of DuolingoSEC Form 424 February 2022Class A Common Stock · traded 15 February 2022 · filed 24 February 2022
- ▼ sold on the open market 20 shares of DuolingoSEC Form 424 February 2022Class A Common Stock · traded 15 February 2022 · filed 24 February 2022
- ▼ sold on the open market 18 shares of DuolingoSEC Form 424 February 2022Class A Common Stock · traded 15 February 2022 · filed 24 February 2022
- ▼ sold on the open market 1 share of DuolingoSEC Form 424 February 2022Class A Common Stock · traded 15 February 2022 · filed 24 February 2022
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.