Insmed, Inc. (INSM) insider trading

{
  "status": "OK",
  "results": [
    {
      "tickers": [
        "INSM"
      ],
      "issuer_cik": "0001104506",
      "owner_cik": "0001609305",
      "accession_number": "0001609305-26-000009",
      "form_type": "4",
      "filing_date": "2026-09-11",
      "period_of_report": "2026-09-09",
      "issuer_name": "INSMED Inc",
      "issuer_trading_symbol": "INSM",
      "owner_name": "Brennan David R",
      "is_director": true,
      "is_officer": false,
      "is_ten_percent_owner": false,
      "is_other": false,
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-09-09",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 25000,
      "transaction_price_per_share": 124,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 39238,
      "transaction_value": 3100000,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "D"
    },
    {
      "tickers": [
        "INSM"
      ],
      "issuer_cik": "0001104506",
      "owner_cik": "0001182633",
      "accession_number": "0001182633-26-000010",
      "form_type": "4",
      "filing_date": "2026-08-19",
      "period_of_report": "2026-08-17",
      "issuer_name": "INSMED Inc",
      "issuer_trading_symbol": "INSM",
      "owner_name": "SHAROKY MELVIN MD",
      "is_director": true,
      "is_officer": false,
      "is_ten_percent_owner": false,
      "is_other": false,
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-08-17",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 5000,
      "transaction_price_per_share": 127.53,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 0,
      "transaction_value": 637650,
      "not_subject_to_section_16": false,
      "direct_or_indirect": "I",
      "nature_of_ownership": "By Padonia, LLC",
      "footnotes": [
        {
          "id": "F1",
          "description": "This is the weighted average sales price representing 5,000 shares sold at prices ranging from $127.51 to $127.61 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request."
        },
        {
          "id": "F2",
          "description": "The Reporting Person is the managing member of Padonia, LLC."
        }
      ]
    }
  ]
}

// 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.