Axcelis Technologies Inc (ACLS) insider trading

{
  "status": "OK",
  "results": [
    {
      "tickers": [
        "ACLS"
      ],
      "issuer_cik": "0001113232",
      "owner_cik": "0001338515",
      "accession_number": "0001338515-26-000004",
      "form_type": "4",
      "filing_date": "2026-06-04",
      "period_of_report": "2026-06-03",
      "issuer_name": "AXCELIS TECHNOLOGIES INC",
      "issuer_trading_symbol": "ACLS",
      "owner_name": "Sayiner Necip",
      "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": "2026-06-03",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 1586,
      "transaction_price_per_share": 157.4422,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 7112,
      "transaction_value": 249703.32920000004,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $157.4100 to $157.7100, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."
        },
        {
          "id": "F2",
          "description": "Of the shares held after this sale on June 3, 2026, 2,110 shares were issuable on vesting of restricted stock units granted to the reporting person under the 2012 Equity Incentive Plan and are subject to forfeiture."
        }
      ]
    },
    {
      "tickers": [
        "ACLS"
      ],
      "issuer_cik": "0001113232",
      "owner_cik": "0002101601",
      "accession_number": "0002101601-26-000012",
      "form_type": "4",
      "filing_date": "2026-06-03",
      "period_of_report": "2026-06-02",
      "issuer_name": "AXCELIS TECHNOLOGIES INC",
      "issuer_trading_symbol": "ACLS",
      "owner_name": "Mahoney Robert John",
      "is_director": false,
      "is_officer": true,
      "is_ten_percent_owner": false,
      "is_other": false,
      "officer_title": "EVP Global Operations",
      "security_type": "non_derivative",
      "record_type": "transaction",
      "security_title": "Common Stock",
      "transaction_timeliness": "O",
      "aff_10b5_one": false,
      "transaction_date": "2026-06-02",
      "transaction_code": "S",
      "equity_swap_involved": false,
      "transaction_shares": 1155,
      "transaction_price_per_share": 155.24,
      "transaction_acquired_disposed": "D",
      "shares_owned_following_transaction": 14410,
      "transaction_value": 179302.2,
      "direct_or_indirect": "D",
      "footnotes": [
        {
          "id": "F1",
          "description": "Of the shares held after this sale on June 2, 2026, 12,578 shares were issuable on vesting of restricted stock units granted to the reporting person under the 2012 Equity Incentive Plan and are subject to forfeiture."
        }
      ]
    }
  ]
}

// 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.