{"schema":"rootz.ai/sec-company/v1","layer":3,"cik":"0000847411","name":"MFS INVESTMENT GRADE MUNICIPAL TRUST","filings":[{"form_type":"8-K","period_ending":"2007-12-21","filed_date":"2007-12-28","accession":"0001193125-07-272744","edgar_url":"https://www.sec.gov/Archives/edgar/data/847411/000119312507272744/","pem_signed":true,"extraction_status":"pending","sections_extracted":[]},{"form_type":"DEF 14A","period_ending":"1999-04-15","filed_date":"1999-03-12","accession":"0000021847-99-000044","edgar_url":"https://www.sec.gov/Archives/edgar/data/847411/000002184799000044/","pem_signed":true,"extraction_status":"pending","sections_extracted":[]},{"form_type":"DEF 14A","period_ending":"1998-05-27","filed_date":"1998-04-15","accession":"0000021847-98-000028","edgar_url":"https://www.sec.gov/Archives/edgar/data/847411/000002184798000028/","pem_signed":true,"extraction_status":"pending","sections_extracted":[]},{"form_type":"DEF 14A","period_ending":"1997-05-30","filed_date":"1997-04-24","accession":"0000021847-97-000067","edgar_url":"https://www.sec.gov/Archives/edgar/data/847411/000002184797000067/","pem_signed":true,"extraction_status":"pending","sections_extracted":[]},{"form_type":"DEF 14A","period_ending":"1996-05-31","filed_date":"1996-04-26","accession":"0000021847-96-000058","edgar_url":"https://www.sec.gov/Archives/edgar/data/847411/000002184796000058/","pem_signed":true,"extraction_status":"pending","sections_extracted":[]},{"form_type":"DEF 14A","period_ending":"1995-05-31","filed_date":"1995-04-21","accession":"0000876980-95-000004","edgar_url":"https://www.sec.gov/Archives/edgar/data/847411/000087698095000004/","pem_signed":true,"extraction_status":"pending","sections_extracted":[]}],"edgar_company_page":"https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000847411&type=&dateb=&owner=exclude&count=100","provenance":{"source":"sec.gov/edgar","note":"All filings are PEM-signed by SEC. Accession numbers are permanent identifiers."}}