SANTA CLARA, Calif.–(BUSINESS WIRE)–Feb. 26, 2015–
MoSys, Inc. (NASDAQ: MOSY)
today announced that it intends to offer shares of its common stock in
an underwritten public offering. The offering is subject to market and
other conditions, and there can be no assurance as to whether or when
the offering may be completed, or as to the actual size or terms of the
offering.

Roth Capital Partners is acting as the sole book-running manager of the
offering and The Benchmark Company is acting as co-manager.

The company intends to use the net proceeds from the offering for
working capital and general corporate purposes.

The shares described above are being offered pursuant to a registration
statement previously filed with and subsequently declared effective by
the Securities and Exchange Commission, or SEC. A preliminary prospectus
relating to the offering has also been filed with the SEC and is
available on the SEC’s website at http://www.sec.gov.

This press release shall not constitute an offer to sell or the
solicitation of an offer to buy any of the securities described herein,
nor shall there be any sale of these securities in any state or
jurisdiction in which such offer, solicitation or sale would be unlawful
prior to registration or qualification under the securities laws of any
such state or jurisdiction. Copies of the preliminary prospectus
supplement and accompanying base prospectus relating to this offering
may be obtained from Roth Capital Partners, LLC, 888 San Clemente,
Newport Beach, CA 92660, (800) 678-9147 or by accessing the SEC’s
website, www.sec.gov.

About MoSys, Inc.

MoSys, Inc. (NASDAQ: MOSY) is a fabless semiconductor company enabling
leading equipment manufacturers in the networking and communications
systems markets to address the continual increase in Internet users,
data and services. More information is available at www.mosys.com.

Safe Harbor / Forward-Looking Statements

This press release contains forward-looking statements regarding the
proposed public offering and the intended use of proceeds from the
offering. Forward-looking statements are based on certain assumptions
and expectations of future events that are subject to risks and
uncertainties. Actual results and trends may differ materially from
those projected in any such forward-looking statements depending on a
variety of factors, including market conditions, risks associated with
the cash requirements of the company’s business and other risks
identified in the company’s most recent report on Form 10-Q and Form
10-K filed with the SEC, as well as other reports that MoSys files from
time to time with SEC. MoSys undertakes no obligation to update publicly
any forward-looking statement for any reason, except as required by law,
even as new information becomes available or other events occur in the
future.

MoSys is a registered trademark of MoSys, Inc. in the US and/or other
countries. The MoSys logo is a trademark of MoSys, Inc. All other marks
mentioned herein are the property of their respective owners.

Source: MoSys, Inc.

MoSys, Inc.
Jim Sullivan, CFO, +1-408-418-7500
jsullivan@mosys.com
or
Shelton
Group, Investor Relations
Beverly Twing, +1-214-272-0089
Sr.
Acct. Manager
btwing@sheltongroup.com