15 Days from when they filed the nt 10k. After submission of the SEC Form NT 10-K, the company must then file its 10-K within 15 days. Read more: http://www.investopedia.com/terms/s/sec-form-nt-10k.asp#ixzz3XTSJKTQ3 Follow us: @Investopedia on Twitter http://www.investopedia.com/terms/s/sec-form-nt-10k.asp http://www.investopedia.com/terms/s/sec-form-nt-10k.asp