{"entity":{"type":"insider","cik":"0001912935","url":"/insider/0001912935","json_url":"/insider/0001912935.json","name":"Marraccini Jeffrey","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":23,"n_filings":18,"first":"2022-03-09","last":"2025-03-19","span_basis":"filed_date"},"name_variants":[{"name":"Marraccini Jeffrey","source":"filing","n_filings":18,"first_seen":"2022-03-09","last_seen":"2025-03-19"}],"transactions":[{"id":4512068,"accession":"0001127602-25-009932","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-25-009932","line_url":"/filing/0001127602-25-009932#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":90.0,"shares_display":"90","price_per_share":111.3,"price_display":"111.30","price_state":"stated","total_value":10017.0,"total_display":"10,017.00","shares_owned_after":5462.0,"shares_owned_after_display":"5,462","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-03-17","filed_date":"2025-03-19","scope":"insider"},{"id":4669282,"accession":"0001127602-25-008211","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-25-008211","line_url":"/filing/0001127602-25-008211#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":197.0,"shares_display":"197","price_per_share":111.45,"price_display":"111.45","price_state":"stated","total_value":21955.65,"total_display":"21,955.65","shares_owned_after":5552.0,"shares_owned_after_display":"5,552","ownership_form":"D","is_10b5_1":null,"transaction_date":"2025-03-03","filed_date":"2025-03-05","scope":"insider"},{"id":2724601,"accession":"0001127602-24-026650","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001127602-24-026650","line_url":"/filing/0001127602-24-026650#line-4","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1824.0,"shares_display":"1,824","price_per_share":104.1,"price_display":"104.10","price_state":"stated","total_value":189878.4,"total_display":"189,878.40","shares_owned_after":4680.0,"shares_owned_after_display":"4,680","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-11-05","filed_date":"2024-11-07","scope":"insider"},{"id":2347380,"accession":"0001127602-24-015417","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001127602-24-015417","line_url":"/filing/0001127602-24-015417#line-3","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":12000.0,"shares_display":"12,000","price_per_share":85.7364,"price_display":"85.74","price_state":"stated","total_value":1028836.8,"total_display":"1,028,836.80","shares_owned_after":4597.0,"shares_owned_after_display":"4,597","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-05-14","filed_date":"2024-05-15","scope":"insider"},{"id":2347372,"accession":"0001127602-24-015417","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-24-015417","line_url":"/filing/0001127602-24-015417#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":43.0,"shares_display":"43","price_per_share":85.77,"price_display":"85.77","price_state":"stated","total_value":3688.11,"total_display":"3,688.11","shares_owned_after":4597.0,"shares_owned_after_display":"4,597","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-05-13","filed_date":"2024-05-15","scope":"insider"},{"id":2840216,"accession":"0001127602-24-014903","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-24-014903","line_url":"/filing/0001127602-24-014903#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":23.0,"shares_display":"23","price_per_share":84.38,"price_display":"84.38","price_state":"stated","total_value":1940.74,"total_display":"1,940.74","shares_owned_after":4640.0,"shares_owned_after_display":"4,640","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-05-08","filed_date":"2024-05-10","scope":"insider"},{"id":2109461,"accession":"0001127602-24-010105","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-24-010105","line_url":"/filing/0001127602-24-010105#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":105.0,"shares_display":"105","price_per_share":81.66,"price_display":"81.66","price_state":"stated","total_value":8574.3,"total_display":"8,574.30","shares_owned_after":3934.0,"shares_owned_after_display":"3,934","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-03-13","filed_date":"2024-03-14","scope":"insider"},{"id":2261841,"accession":"0001127602-24-008961","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001127602-24-008961","line_url":"/filing/0001127602-24-008961#line-2","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5778.0,"shares_display":"5,778","price_per_share":83.0404,"price_display":"83.04","price_state":"stated","total_value":479807.4312,"total_display":"479,807.43","shares_owned_after":4039.0,"shares_owned_after_display":"4,039","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-03-06","filed_date":"2024-03-07","scope":"insider"},{"id":2464025,"accession":"0001127602-24-008449","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-24-008449","line_url":"/filing/0001127602-24-008449#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":197.0,"shares_display":"197","price_per_share":85.32,"price_display":"85.32","price_state":"stated","total_value":16808.04,"total_display":"16,808.04","shares_owned_after":4039.0,"shares_owned_after_display":"4,039","ownership_form":"D","is_10b5_1":null,"transaction_date":"2024-03-04","filed_date":"2024-03-05","scope":"insider"},{"id":7971443,"accession":"0001127602-23-027056","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001127602-23-027056","line_url":"/filing/0001127602-23-027056#line-4","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2611.0,"shares_display":"2,611","price_per_share":67.404,"price_display":"67.40","price_state":"stated","total_value":175991.844,"total_display":"175,991.84","shares_owned_after":5242.0,"shares_owned_after_display":"5,242","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-11-07","filed_date":"2023-11-08","scope":"insider"},{"id":7971440,"accession":"0001127602-23-027056","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001127602-23-027056","line_url":"/filing/0001127602-23-027056#line-3","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1100.0,"shares_display":"1,100","price_per_share":67.995,"price_display":"68.00","price_state":"stated","total_value":74794.5,"total_display":"74,794.50","shares_owned_after":4142.0,"shares_owned_after_display":"4,142","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-11-07","filed_date":"2023-11-08","scope":"insider"},{"id":8624982,"accession":"0001127602-23-018236","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001127602-23-018236","line_url":"/filing/0001127602-23-018236#line-4","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1772.0,"shares_display":"1,772","price_per_share":75.205,"price_display":"75.20","price_state":"stated","total_value":133263.26,"total_display":"133,263.26","shares_owned_after":4002.0,"shares_owned_after_display":"4,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-06-07","filed_date":"2023-06-08","scope":"insider"},{"id":8624980,"accession":"0001127602-23-018236","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001127602-23-018236","line_url":"/filing/0001127602-23-018236#line-3","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1379.0,"shares_display":"1,379","price_per_share":74.607,"price_display":"74.61","price_state":"stated","total_value":102883.053,"total_display":"102,883.05","shares_owned_after":5774.0,"shares_owned_after_display":"5,774","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-06-07","filed_date":"2023-06-08","scope":"insider"},{"id":8432102,"accession":"0001127602-23-015622","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-23-015622","line_url":"/filing/0001127602-23-015622#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":41.0,"shares_display":"41","price_per_share":67.4,"price_display":"67.40","price_state":"stated","total_value":2763.4,"total_display":"2,763.40","shares_owned_after":4002.0,"shares_owned_after_display":"4,002","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-05-12","filed_date":"2023-05-15","scope":"insider"},{"id":7805598,"accession":"0001127602-23-010557","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-23-010557","line_url":"/filing/0001127602-23-010557#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":220.0,"shares_display":"220","price_per_share":64.967,"price_display":"64.97","price_state":"stated","total_value":14292.74,"total_display":"14,292.74","shares_owned_after":4043.0,"shares_owned_after_display":"4,043","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-03-16","filed_date":"2023-03-17","scope":"insider"},{"id":8257935,"accession":"0001127602-23-010297","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-23-010297","line_url":"/filing/0001127602-23-010297#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":125.0,"shares_display":"125","price_per_share":62.49,"price_display":"62.49","price_state":"stated","total_value":7811.25,"total_display":"7,811.25","shares_owned_after":4263.0,"shares_owned_after_display":"4,263","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-03-13","filed_date":"2023-03-15","scope":"insider"},{"id":8291836,"accession":"0001127602-23-008114","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-23-008114","line_url":"/filing/0001127602-23-008114#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2039.0,"shares_display":"2,039","price_per_share":64.48,"price_display":"64.48","price_state":"stated","total_value":131474.72,"total_display":"131,474.72","shares_owned_after":2086.0,"shares_owned_after_display":"2,086","ownership_form":"D","is_10b5_1":null,"transaction_date":"2023-02-28","filed_date":"2023-03-02","scope":"insider"},{"id":6173420,"accession":"0001127602-22-009871","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001127602-22-009871","line_url":"/filing/0001127602-22-009871#line-2","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":215.0,"shares_display":"215","price_per_share":58.48,"price_display":"58.48","price_state":"stated","total_value":12573.2,"total_display":"12,573.20","shares_owned_after":2256.0,"shares_owned_after_display":"2,256","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-16","filed_date":"2022-03-18","scope":"insider"},{"id":6173416,"accession":"0001127602-22-009871","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-22-009871","line_url":"/filing/0001127602-22-009871#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":2.0,"shares_display":"2","price_per_share":59.97,"price_display":"59.97","price_state":"stated","total_value":119.94,"total_display":"119.94","shares_owned_after":2254.0,"shares_owned_after_display":"2,254","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-16","filed_date":"2022-03-18","scope":"insider"},{"id":6962731,"accession":"0001127602-22-009399","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-22-009399","line_url":"/filing/0001127602-22-009399#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":126.0,"shares_display":"126","price_per_share":59.963,"price_display":"59.96","price_state":"stated","total_value":7555.338,"total_display":"7,555.34","shares_owned_after":2471.0,"shares_owned_after_display":"2,471","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-14","filed_date":"2022-03-15","scope":"insider"},{"id":6746910,"accession":"0001127602-22-008847","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001127602-22-008847","line_url":"/filing/0001127602-22-008847#line-2","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":756.0,"shares_display":"756","price_per_share":62.682,"price_display":"62.68","price_state":"stated","total_value":47387.592,"total_display":"47,387.59","shares_owned_after":2761.0,"shares_owned_after_display":"2,761","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-09","filed_date":"2022-03-10","scope":"insider"},{"id":6746907,"accession":"0001127602-22-008847","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-22-008847","line_url":"/filing/0001127602-22-008847#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":164.0,"shares_display":"164","price_per_share":63.267,"price_display":"63.27","price_state":"stated","total_value":10375.788,"total_display":"10,375.79","shares_owned_after":2597.0,"shares_owned_after_display":"2,597","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-09","filed_date":"2022-03-10","scope":"insider"},{"id":6111019,"accession":"0001127602-22-008820","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001127602-22-008820","line_url":"/filing/0001127602-22-008820#line-1","is_derivative":false,"issuer_cik":"0001701732","issuer_name":"Altair Engineering Inc.","issuer_ticker":"ALTR","issuer_name_source":null,"issuer_url":"/issuer/0001701732","owner_cik":"0001912935","owner_name":"Marraccini Jeffrey","owner_url":"/insider/0001912935","role":"Officer","officer_title":"See Remarks","security_title":"Class A Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":91.0,"shares_display":"91","price_per_share":64.55,"price_display":"64.55","price_state":"stated","total_value":5874.05,"total_display":"5,874.05","shares_owned_after":3517.0,"shares_owned_after_display":"3,517","ownership_form":"D","is_10b5_1":null,"transaction_date":"2022-03-07","filed_date":"2022-03-09","scope":"insider"}],"next_cursor":null,"ledger_fault":false,"count":{"value":23,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":0,"open_market":true},{"code":"S","label":"Open-market sale","n":23,"open_market":true},{"code":"M","label":"Option exercise","n":0,"open_market":false},{"code":"A","label":"Grant or award","n":0,"open_market":false},{"code":"F","label":"Tax withholding","n":0,"open_market":false},{"code":"D","label":"Disposition to the issuer","n":0,"open_market":false},{"code":"X","label":"In-the-money option exercise","n":0,"open_market":false}],"total":23},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001701732","name":"Altair Engineering Inc.","url":"/issuer/0001701732","role":"Officer","n_filings":18,"first_seen":"2022-03-09","last_seen":"2025-03-19"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001912935","retrieved_at":"2026-08-21T03:30:15+00:00","coverage":{"filings":1505395,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-19","last_ingest":"2026-08-20T05:22:56.381658+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}