Amber Road Inc. (AMBR): Discovery Group Decreases Stake

Item 3 of the Schedule 13D is hereby amended to read in its
entirety as follows:

The total purchase price for the 1,510,255 shares of Common
Stock beneficially owned by the Reporting Persons as of September 2, 2016 was approximately $10,034,939. The source of such funds
was the assets of Discovery Equity Partners, including proceeds of margin loans under margin loan facilities maintained in the
ordinary course of business by the Discovery Equity Partners with a broker on customary terms and conditions. Discovery Equity
Partners is the legal owner of all of the Common Stock beneficially owned by Discovery Group and Messrs. Donoghue and Murphy.

Item 5 of the Schedule 13D is hereby amended to read in its
entirety as follows:

The information concerning percentages of ownership set forth
below is based on 26,460,677 shares of Common Stock outstanding as of July 31, 2016
in the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2016.

Discovery Equity Partners beneficially owns 1,510,255 shares
of Common Stock as of September 2, 2016, which represents 5.7% of the outstanding Common Stock.

Discovery Group beneficially owns 1,510,255 shares of Common
Stock as of September 2, 2016, which represents 5.7% of the outstanding Common Stock.

Mr. Donoghue beneficially owns 1,510,255 shares of Common Stock
as of September 2, 2016, which represents 5.7% of the outstanding Common Stock.

Mr. Murphy beneficially owns 1,510,255 shares of Common Stock
as of September 2, 2016, which represents 5.7% of the outstanding Common Stock..

Discovery Group is the
sole general partner of Discovery Equity Partners.  Messrs. Donoghue and Murphy are the sole managing members of Discovery
Group.  As a consequence, Discovery Group and Messrs. Donoghue and Murphy may be deemed to share beneficial ownership of all of the shares of Common
Stock owned by Discovery Equity Partners.

The transactions in Common Stock effected by the Reporting Persons
since those reported in the Schedule 13D filed by the Reporting Persons on August 26, 2016 are set out in Exhibit 1 hereto.

No person other than Discovery
Equity Partners is known to any Reporting Person to have the right to receive or the power to direct the receipt of dividends
from, or the proceeds from the sale of, any of the shares of Common Stock reported herein.

Item 6 of the Schedule 13D is hereby amended to read in its
entirety as follows:

There are no contracts,
arrangements, understandings or relationships (legal or otherwise) between or among any of the Reporting Persons and any other
person with respect to any securities of the Company other than the governing documents of Discovery Group and Discovery Equity
Partners, the margin loan facilities referred to under Item 3 above, the Joint Filing Agreements of the Reporting Persons
with respect to the Schedule 13D that were included as exhibits thereto, the Joint Filing Agreement of the Reporting Persons with
respect to this Amendment No. 4 included as Exhibit 2 to this Amendment No. 4, and the Powers of Attorney granted by Messrs.
Donoghue and Murphy with respect to reports under Section 13 of the Securities Exchange Act of 1934, as amended, which Powers of
Attorney are included as Exhibit 3 and Exhibit 4, respectively, to this Amendment No. 4.

Date

DISCOVERY GROUP I, LLC,

for itself and as general partner of

DISCOVERY EQUITY PARTNERS, L.P.

By: Michael R. Murphy*

Mark Buckley

Attorney-in-Fact for Daniel J. Donoghue

Attorney-in-Fact for Michael R. Murphy

Joint Filing Agreement dated as of September 6, 2016, by and
among

Discovery Equity Partners;
Discovery Group; Daniel J. Donoghue; and Michael R. Murphy.