SONIC CORP Form 10-K: Annual report

Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.

2018-10-23: Form 10-K; Period of report 2018-08-31; Description 10-K; Document soncfy201810k.htm.
2017-10-27: Form 10-K; Period of report 2017-08-31; Description 10-K; Document soncfy201710k.htm.
2016-10-31: Form 10-K; Period of report 2016-08-31; Description 10-K; Document sonc-20160831x10k.htm.
2015-10-23: Form 10-K; Period of report 2015-08-31; Description 10-K; Document sonc-20150831x10k.htm.

Filed	Form	Period of report	Description	Document
2018-10-23	10-K	2018-08-31	10-K	soncfy201810k.htm
2017-10-27	10-K	2017-08-31	10-K	soncfy201710k.htm
2016-10-31	10-K	2016-08-31	10-K	sonc-20160831x10k.htm
2015-10-23	10-K	2015-08-31	10-K	sonc-20150831x10k.htm
2014-10-24	10-K	2014-08-31	10-K	sonc-20140831x10k.htm
2013-10-25	10-K	2013-08-31	10-K	sonc-20130831x10k.htm
2012-10-26	10-K	2012-08-31	FORM 10-K	d426526d10k.htm
2011-10-28	10-K	2011-08-31	FORM 10-K	d246884d10k.htm
2010-10-29	10-K	2010-08-31	FORM 10-K	d10k.htm
2009-10-29	10-K	2009-08-31	SONIC CORP 10-K 8-31-2009	form10k.htm
2008-10-30	10-K	2008-08-31	SONIC CORP 10-K 8-31-2008	form10k.htm
2007-10-29	10-K	2007-08-31	FORM 10K 08/31/2007	form10k_10292007.htm
2006-10-31	10-K	2006-08-31	FY06 10K	fy06_10k.htm
2005-11-14	10-K	2005-08-31	FY05 10K	fy05_10k.htm
2004-11-15	10-K	2004-08-31	FY04 10K	fy04_10k.htm
2003-11-25	10-K	2003-08-31	FY03 10K	fy03_10k.htm
2002-11-27	10-K	2002-08-31	FY 2002 10K - SONIC CORP.	fy2002_10k.htm
1999-11-24	10-K	1999-08-31	10-K	0000912057-99-007363-d1.html
1998-11-25	10-K	1998-08-31	FORM 10-K