Sixth Street Specialty Lending, Inc. (TSLX) insider trading

{
  "status": "OK",
  "results": [
    {
      "tickers": [
        "TSLX"
      ],
      "issuer_cik": "0001508655",
      "owner_cik": "0002112742",
      "accession_number": "0001193125-26-222021",
      "form_type": "4",
      "filing_date": "2026-05-13",
      "period_of_report": "2026-05-11",
      "issuer_name": "Sixth Street Specialty Lending, Inc.",
      "issuer_trading_symbol": "TSLX",
      "owner_name": "Bruck Ross Anthony",
      "is_director": false,
      "is_officer": true,
      "is_ten_percent_owner": false,
      "is_other": false,
      "officer_title": "Vice President",
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-05-11",
      "transaction_code": "P",
      "equity_swap_involved": false,
      "transaction_shares": 8000,
      "transaction_price_per_share": 17.76,
      "transaction_acquired_disposed": "A",
      "shares_owned_following_transaction": 18250,
      "transaction_value": 142080,
      "direct_or_indirect": "D",
      "remarks": "(1) Anton Brett is signing on behalf of Ross Bruck pursuant to a Power of Attorney dated February 20, 2026."
    },
    {
      "tickers": [
        "TSLX"
      ],
      "issuer_cik": "0001508655",
      "owner_cik": "0001515132",
      "accession_number": "0001193125-26-102222",
      "form_type": "4",
      "filing_date": "2026-03-11",
      "period_of_report": "2026-03-09",
      "issuer_name": "Sixth Street Specialty Lending, Inc.",
      "issuer_trading_symbol": "TSLX",
      "owner_name": "Waxman Alan",
      "is_director": false,
      "is_officer": true,
      "is_ten_percent_owner": false,
      "is_other": false,
      "officer_title": "Vice President",
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-03-09",
      "transaction_code": "P",
      "equity_swap_involved": false,
      "transaction_shares": 200000,
      "transaction_price_per_share": 18.18,
      "transaction_acquired_disposed": "A",
      "shares_owned_following_transaction": 500000,
      "transaction_value": 3636000,
      "direct_or_indirect": "I",
      "nature_of_ownership": "By Trust",
      "footnotes": [
        {
          "id": "F1",
          "description": "The price reported in Column 4 is a weighted average price. These shares of common stock, par value $0.01 per share (the \"Shares\") were purchased in multiple transactions at prices ranging from $17.865 to $18.445, inclusive. Mr. Waxman (\"Reporting Person\") undertakes to provide to Sixth Street Specialty Lending, Inc. (the \"Issuer\"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares purchased at each separate price within the range set forth above."
        }
      ],
      "remarks": "Reporting Person disclaims beneficial ownership of these Shares, except to the extent of his pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, Reporting Person states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.\n\n(A) Anton Brett is signing on behalf of Mr. Waxman pursuant to a Power of Attorney dated March 2, 2026."
    }
  ]
}

// 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.