Duolingo, Inc. (DUOL) insider trading

{
  "status": "OK",
  "results": [
    {
      "tickers": [
        "DUOL"
      ],
      "issuer_cik": "0001562088",
      "owner_cik": "0001829259",
      "accession_number": "0001628280-26-065528",
      "form_type": "4",
      "filing_date": "2026-10-09",
      "period_of_report": "2026-10-07",
      "issuer_name": "Duolingo, Inc.",
      "issuer_trading_symbol": "DUOL",
      "owner_name": "von Ahn Luis",
      "is_director": true,
      "is_officer": true,
      "is_ten_percent_owner": true,
      "is_other": false,
      "officer_title": "President & CEO, Co-Founder",
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Class A Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": true,
      "transaction_date": "2026-10-07",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 20025,
      "transaction_price_per_share": 150.6319,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 90021,
      "transaction_value": 3016403.7975,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2026."
        },
        {
          "id": "F2",
          "description": "The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $150.00 to $150.99, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."
        }
      ]
    },
    {
      "tickers": [
        "DUOL"
      ],
      "issuer_cik": "0001562088",
      "owner_cik": "0001829259",
      "accession_number": "0001628280-26-065528",
      "form_type": "4",
      "filing_date": "2026-10-09",
      "period_of_report": "2026-10-07",
      "issuer_name": "Duolingo, Inc.",
      "issuer_trading_symbol": "DUOL",
      "owner_name": "von Ahn Luis",
      "is_director": true,
      "is_officer": true,
      "is_ten_percent_owner": true,
      "is_other": false,
      "officer_title": "President & CEO, Co-Founder",
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Class A Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": true,
      "transaction_date": "2026-10-07",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 5114,
      "transaction_price_per_share": 153.2611,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 0,
      "transaction_value": 783777.2654,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan adopted on June 2, 2026."
        },
        {
          "id": "F5",
          "description": "The price reported in Column 4 is a weighted average sale price calculated by the broker executing the sales. These shares were sold in multiple transactions at prices ranging from $153.00 to $153.61, inclusive. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote."
        }
      ]
    }
  ]
}

// trimmed to 2 results

The response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.