{"slug":"most-common-sec-filings","qid":"amendments","label":"The most-amended SEC forms: /A filings, trailing 12 months","post_title":"The Most Common SEC Filings, Explained by Data","post_url":"/blog/most-common-sec-filings#q-amendments","columns":["amended_form","amendments","amendments_display","pct_of_amendments"],"rows":[{"amended_form":"SCHEDULE 13G/A","amendments":33916,"amendments_display":"33,916","pct_of_amendments":35.5},{"amended_form":"D/A","amendments":21990,"amendments_display":"21,990","pct_of_amendments":23},{"amended_form":"SCHEDULE 13D/A","amendments":8421,"amendments_display":"8,421","pct_of_amendments":8.8},{"amended_form":"40-APP/A","amendments":8095,"amendments_display":"8,095","pct_of_amendments":8.5},{"amended_form":"4/A","amendments":5202,"amendments_display":"5,202","pct_of_amendments":5.4},{"amended_form":"S-1/A","amendments":1631,"amendments_display":"1,631","pct_of_amendments":1.7},{"amended_form":"8-K/A","amendments":1428,"amendments_display":"1,428","pct_of_amendments":1.5},{"amended_form":"3/A","amendments":1328,"amendments_display":"1,328","pct_of_amendments":1.4}],"shape":"ranking","sql":"SELECT form_type AS amended_form,\n       count() AS amendments,\n       reverse(arrayStringConcat(extractAll(reverse(toString(count())), '[0-9]{1,3}'), ',')) AS amendments_display,\n       round(100.0 * count() / (SELECT countIf(endsWith(form_type, '/A')) FROM global_markets.stocks_sec_edgar_index WHERE filing_date >= today() - INTERVAL 12 MONTH AND filing_date < today()), 1) AS pct_of_amendments\nFROM global_markets.stocks_sec_edgar_index\nWHERE filing_date >= today() - INTERVAL 12 MONTH AND filing_date < today()\n  AND endsWith(form_type, '/A')\nGROUP BY form_type\nORDER BY amendments DESC\nLIMIT 8","computed_at":"2026-08-22T04:17:08.609654+00:00","elapsed":0.093611834}