CBIZ, Inc. filed Post-Effective Amendments to eight legacy Form S-3 registration statements on November 2, 2026, removing all unsold securities from registration following the completion of its merger with Viking MergerCo, Inc.

Key Highlights

  • Merger completed: On November 2, 2026, Viking MergerCo, Inc. merged with and into CBIZ, Inc., with CBIZ surviving as a wholly owned subsidiary of Viking ParentCo, Inc.
  • Merger agreement date: The Agreement and Plan of Merger was dated July 28, 2026, among CBIZ, Viking ParentCo, Inc., and Viking MergerCo, Inc.
  • Eight registration statements affected: The post-effective amendments cover registration statement numbers 333-15413, 333-27825, 333-40331, 333-46687, 333-64109, 333-76179, 333-90749, and 333-135912.
  • All offerings terminated: According to the filing, "any and all offerings of securities registered pursuant to the Registration Statements have been terminated" as a result of the merger.
  • Securities deregistered: The filing removes from registration all unsold debt securities, warrants, 3.125% Convertible Senior Subordinated Notes due 2026, and shares of common stock across all eight statements.
  • Registration statements span decades: The earliest registration statement (No. 333-15413) was originally filed on November 1, 1996, under the company's former name, International Alliance Services, Inc., covering up to 32,126,076 shares.

CBIZ Closes Merger and Terminates Eight Legacy Registration Statements

CBIZ, Inc., a Delaware corporation, filed Post-Effective Amendments on November 2, 2026, to eight separate Form S-3 registration statements, with the stated purpose of deregistering all securities that remained unsold at the termination of those offerings. The filing identifies the trigger as the completion of a merger in which Viking MergerCo, Inc., a direct wholly owned subsidiary of Viking ParentCo, Inc., merged with and into CBIZ, leaving CBIZ as a wholly owned subsidiary of Viking ParentCo, Inc.

The eight registration statements originated between 1996 and 2006, filed under CBIZ's current and former corporate names, including International Alliance Services, Inc. and Century Business Services, Inc. The securities registered across these statements included resale shares for various selling stockholders, up to $125,000,000 of debt securities, shares of common stock, and warrants under Registration No. 333-40331, as well as the company's 3.125% Convertible Senior Subordinated Notes due 2026 and shares issuable upon their conversion under Registration No. 333-135912. According to the filing, the company is acting pursuant to undertakings made in the original registration statements to remove unsold securities by post-effective amendment upon termination of any offering.

The filing was signed by Jim Peko, identified as Chief Executive Officer of CBIZ, Inc., in New York, New York on November 2, 2026. The filing notes that no other person is required to sign the amendments, citing reliance on Rule 478 under the Securities Act of 1933. CBIZ is identified as a large accelerated filer. The company's registered address is listed as 5959 Rockside Woods Blvd. N., Suite 600, Independence, Ohio 44131.

What Was Disclosed

CBIZ, Inc. filed post-effective amendments to eight S-3 registration statements on November 2, 2026, to deregister all unsold securities following the closing of its merger with Viking MergerCo, Inc. and its resulting status as a wholly owned subsidiary of Viking ParentCo, Inc.