EDGW Edgewater Technology, Inc. (delisted)

As filed with the Securities and Exchange Commission on November 2, 2018

Registration No. 333-29689

Registration No. 333-30209

Registration No. 333-56789

Registration No. 333-106325

Registration No. 333-153740

Registration No. 333-153741

Registration No. 333-175660

Registration No. 333-182164

Registration No. 333-204898

Registration No. 333-219170

Registration No. 333-88313

Registration No. 333-50912

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

POST-EFFECTIVE AMENDMENT NO. 1 TO:

FORM S-8 REGISTRATION STATEMENT NO. 333-29689

FORM S-8 REGISTRATION STATEMENT NO. 333-30209

FORM S-8 REGISTRATION STATEMENT NO. 333-56789

FORM S-8 REGISTRATION STATEMENT NO. 333-106325

FORM S-8 REGISTRATION STATEMENT NO. 333-153740

FORM S-8 REGISTRATION STATEMENT NO. 333-153741

FORM S-8 REGISTRATION STATEMENT NO. 333-175660

FORM S-8 REGISTRATION STATEMENT NO. 333-182164

FORM S-8 REGISTRATION STATEMENT NO. 333-204898

FORM S-8 REGISTRATION STATEMENT NO. 333-219170

POST-EFFECTIVE AMENDMENT NO. 2 TO:

FORM S-8 REGISTRATION STATEMENT NO. 333-88313

FORM S-8 REGISTRATION STATEMENT NO. 333-50912

UNDER

THE SECURITIES ACT OF 1933

EDGEWATER TECHNOLOGY, INC.

(Alithya USA, Inc., as successor by merger to Edgewater Technology, Inc.)

(Exact name of registrant as specified in its charter)

c/o Alithya Group inc.

700 De La Gauchetière Street West, Suite 2400

Montréal, Québec, Canada H3B 5M2

(Address of Principal Executive Offices, Zip Code)

StaffMark, Inc. Stock Election Plan for Non-Employee Directors

Edgewater Technology, Inc. Amended And Restated 1996 Stock Option Plan (f/k/a StaffMark, Inc. Amended

and Restated 1996 Stock Option Plan (f/k/a StaffMark, Inc. 1996 Stock Option Plan))

Edgewater Technology, Inc. Amended and Restated 2000 Stock Option Plan (f/k/a Edgewater Technology,

DEREGISTRATION OF SECURITIES

This Post-Effective Amendment (this “Post-Effective Amendment”) deregisters all unissued common stock, par value $0.01 per share (“Common Stock”), of Alithya USA, Inc. (f/k/a Edgewater Technology, Inc.) (“Alithya USA”) and any other securities remaining unissued under the following Registration Statements on Form S-8 (each, a “Registration Statement,” and collectively, the “Registration Statements”) filed by Alithya USA with the U.S. Securities and Exchange Commission (the “Commission”):

Effective November 1, 2018, pursuant to the arrangement agreement, as amended from time to time, among Alithya Group Inc., a Québec private corporation (“Alithya”), Alithya Group inc. (f/k/a 9374-8572 Québec Inc.), a newly-formed Québec corporation (“New Alithya”), 9374-8572 Delaware Inc., a newly-formed wholly-owned Delaware

subsidiary of New Alithya (“U.S. Merger Sub”), and Alithya USA, (i) New Alithya acquired Alithya pursuant to a plan of arrangement under the laws of Québec, Canada, and (ii) U.S. Merger Sub merged with and into Alithya USA (the “merger”), with Alithya USA as the surviving corporation (together, the “transactions”). Upon completion of the transactions, both Alithya USA and Alithya will become wholly-owned subsidiaries of New Alithya and Alithya USA changed its name to Alithya USA, Inc.

As a result of the transactions, Alithya USA has terminated any and all offerings of its securities pursuant to the Registration Statements. Accordingly, Alithya USA hereby terminates the effectiveness of the Registration Statements and, in accordance with an undertaking made by Alithya USA in Part II of the Registration Statements to remove from registration, by means of a post-effective amendment, any securities that had been registered for issuance but remain unsold at the termination of the offering, removes from registration any and all securities of Alithya USA registered but unsold under the Registration Statements as of the date hereof.