13D Filing: Viex Capital Advisors, LLC and Radisys Corp (RSYS)

B.

VIEX GP

(a)

VIEX GP, as the general partner of Series One, may be deemed the beneficial owner of the 2,288,357 shares owned by Series One.

Percentage: Approximately
5.9%

(b)

1. Sole power to vote or direct vote: 0 2. Shared power to vote or direct vote: 2,288,357 3. Sole power to dispose or direct the disposition: 0 4. Shared power to dispose or direct the disposition: 2,288,357

(c)

VIEX GP has not entered into any transactions in the Shares during the past 60 days. The transactions in the shares on behalf of Series One during the past 60 days are set forth in Schedule A and are incorporated herein by reference.

C.

VIEX Capital

(a)

VIEX Capital, as the investment manager of Series One, may be deemed the beneficial owner of the 2,288,357 Shares owned by Series One.

Percentage: Approximately
5.9%

(b)

1. Sole power to vote or direct vote: 0 2. Shared power to vote or direct vote: 2,288,357 3. Sole power to dispose or direct the disposition: 0 4. Shared power to dispose or direct the disposition: 2,288,357

(c)

VIEX Capital has not entered into any transactions in the Shares during the past 60 days. The transactions in the Shares on behalf of Series One during the past 60 days are set forth in Schedule A and are incorporated herein by reference.

D.

Eric Singer

(a)

Mr. Singer, as the managing member of VIEX GP and VIEX Capital, may be deemed the beneficial owner of the 2,288,357 Shares owned by Series One.

Percentage: Approximately
5.9%

(b)

1. Sole power to vote or direct vote: 0 2. Shared power to vote or direct vote: 2,288,357 3. Sole power to dispose or direct the disposition: 0 4. Shared power to dispose or direct the disposition: 2,288,357

(c)

Mr. Singer has not entered into any transactions in the Shares during the past 60 days. The transactions in the Shares on behalf of Series One during the past 60 days are set forth in Schedule A and are incorporated herein by reference.

The filing of this
Schedule 13D shall not be construed as an admission that the Reporting Persons are, for purposes of Section 13(d) of the Securities
Exchange Act of 1934, as amended, the beneficial owners of any of the Shares reported herein. Each Reporting Person disclaims beneficial
ownership of such Shares except to the extent of his or its pecuniary interest therein.