DEERFIELD, Ill., March 16, 2020 (GLOBE NEWSWIRE) — RTI Surgical Holdings, Inc. (Nasdaq: RTIX), a global surgical implant company, announced it will file a Form 12b-25 Notification of Late Filing with the Securities and Exchange Commission (the “SEC”) to provide a 15 calendar day extension within which to file its Form 10-K for the fiscal …