{"slug":"schedule-13d-vs-13g","qid":"activist_targets","label":"Most-filed 13D names of the last 18 months","post_title":"Schedule 13D vs 13G: Rules and Deadlines","post_url":"/blog/schedule-13d-vs-13g#q-activist_targets","columns":["ticker","issuer","initial_13d","amendments"],"rows":[{"ticker":"GNK","issuer":"GENCO SHIPPING & TRADING LTD","initial_13d":0,"amendments":22},{"ticker":"AB","issuer":"ALLIANCEBERNSTEIN HOLDING L.P.","initial_13d":0,"amendments":5},{"ticker":"PSHG","issuer":"Performance Shipping Inc.","initial_13d":0,"amendments":3},{"ticker":"PLYA","issuer":"Playa Hotels & Resorts N.V.","initial_13d":0,"amendments":2}],"shape":"ranking","sql":"SELECT\n    ticker,\n    any(issuer_name)                AS issuer,\n    countIf(form_type = 'SC 13D')   AS initial_13d,\n    countIf(form_type = 'SC 13D/A') AS amendments\nFROM global_markets.stocks_sec_edgar_index\nWHERE form_type LIKE 'SC 13D%'\n  AND filing_date >= today() - 548\n  AND filing_date <  today()\n  AND ticker != ''\n  AND ticker NOT IN ('SPCX')\nGROUP BY ticker\nORDER BY (initial_13d + amendments) DESC, ticker\nLIMIT 12","computed_at":"2026-08-22T04:18:55.555769+00:00","elapsed":0.137466743}