13D Filing: Nokomis Capital and Sequans Communications SA ADR (SQNS)

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SCHEDULE 13D

This Schedule 13D (this Schedule 13D) is being filed on behalf of Nokomis Capital, L.L.C., a Texas limited liability company
(Nokomis Capital), and Mr. Brett Hendrickson, the principal of Nokomis Capital, relating to Ordinary shares, nominal value 0.02 (the Common Stock), of Sequans Communications S.A., a société anonyme
incorporated in France (the Issuer).

This Schedule 13D relates to Common Stock of the Issuer purchased by Nokomis Capital
through the accounts of certain private funds (collectively, the Nokomis Accounts). Nokomis Capital serves as the investment adviser to the Nokomis Accounts and may direct the vote and dispose of the 8,344,513 shares of Common Stock held
by the Nokomis Accounts. As the principal of Nokomis Capital, Mr. Hendrickson may direct the vote and disposition of the 8,344,513 shares of Common Stock held by the Nokomis Accounts.

The Common Stock held by the Reporting Persons (as defined below) reported on this Schedule 13D were previously reported on a Schedule 13G as
most recently filed with the Securities Exchange Commission on February 13, 2017.

Item 1.

Security and Issuer

Securities acquired: Ordinary shares, nominal value
0.02 (the Common Stock).

Item 2.

Identity and Background

(a) This Schedule 13D is jointly filed by Nokomis
Capital and Mr. Brett Hendrickson. Because Mr. Hendrickson is the principal of Nokomis Capital (with Mr. Hendrickson and Nokomis Capital hereinafter referred to as the Reporting Persons), the Reporting Persons may be
deemed, pursuant to Rule 13d-3 of the Securities Exchange Act of 1934, as amended (the Act), to be the beneficial owners of all of the shares of Common Stock held by the Nokomis Accounts. The
Reporting Persons are filing this Schedule 13D jointly, as they may be considered a group under Section 13(d)(3) of the Act. However, neither the fact of this filing nor anything contained herein shall be deemed to be an admission
by the Reporting Persons that such a group exists.

(b) The principal place of business for each of the Reporting Persons is 2305 Cedar
Springs Rd., Suite 420, Dallas, TX 75201.

(c) The principal occupation of Mr. Hendrickson is serving as the principal of Nokomis
Capital. The principal business of Nokomis Capital is acting as the investment adviser to the Nokomis Accounts.