Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^{F1,F2,F3,F4,F5,F6,F7,F8,F9,F10}	Mar 21, 2018	S	22,746	$1.6023	D	9,458,083	I	By EMC Acquisition Holdings, LLC
Common Stock^{F2,F3,F4,F5,F6,F7,F8,F9,F10}	Mar 22, 2018	S	2,300	$1.60	D	9,455,783	I	By EMC Acquisition Holdings, LLC

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote 1 to this Form 4 report.
F10Each of Mr. Jay Grossman and Ms. Peggy Koenig, equal members and managers of each of ABRY GP and ABRY VII Capital Investors, LLC, may be deemed to share voting and dispositive power with respect to any Shares beneficially owned by EMC Aggregator, LLC, but disclaims beneficial ownership of such Shares.
F2The securities are held directly by EMC Acquisition Holdings, LLC ("EMC Acquisition Holdings"). EMC Aggregator, LLC owns 84.3% of the member interests of and controls EMC Acquisition Holdings. EMC Acquisition Holdings owned 4,922,923 of the shares of the Issuer prior to the transactions set forth above.
F3On December 28, 2017, EMC Aggregator, LLC became the direct owner of 4,557,906 of the Shares of the Issuer, as a result of the transfer of such shares from EMC Holdco 2 B.V. to EMC Aggregator, LLC in connection with the dissolution of EMC Holdco 2 B.V. EMC Holdco 2 B.V. was an indirect wholly owned subsidiary of EMC Aggregator, LLC. As a result, EMC Aggregator, LLC was the beneficial owner of 9,480,829 of the Shares of the Issuer prior to the reported transactions. Based upon the statement in the Issuer's proxy statement, as filed with the Securities and Exchange Commission on November 28, 2017, that there were 90,770,478 shares of Common Stock of the Issuer outstanding as of November 20, 2017, EMC Aggregator, LLC now beneficially owns 10.41% of the Issuer's outstanding shares.
F4As the direct owner of 96.72429% of the equity interests of EMC Aggregator, LLC, ABRY Partners VII, L.P., a Delaware limited partnership, also may be deemed to share voting and dispositive power with respect to any Shares beneficially owned by EMC Aggregator, LLC. As the direct owner of 3.19196% of the equity interests of EMC Aggregator, LLC, ABRY Partners VII Co-Investment Fund, L.P., a Delaware limited partnership, also may be deemed to share voting and dispositive power with respect to any Shares beneficially owned by EMC Aggregator, LLC. As the direct owner of 0.08375% of the equity interests of EMC Aggregator, ABRY Investment Partnership, L.P. also may be deemed to share voting and dispositive power with respect to any Shares beneficially owned by EMC Aggregator, LLC. Each of James Scola and Messrs.
F5Yosef-Or and Brucato is a member of the board of directors of each of EMC Aggregator, LLC and may be deemed to share voting and dispositive power with respect to any Shares beneficially owned by EMC Aggregator, LLC, but disclaims beneficial ownership of such Shares.
F6ABRY VII Capital Partners, L.P., a Delaware limited partnership, the general partner of ABRY Partners VII, L.P., may be deemed to share voting and dispositive power with respect to any Shares beneficially owned by EMC Aggregator, LLC, but disclaims beneficial ownership of such Shares.
F7ABRY Partners VII Co-Investment GP, LLC, a Delaware limited liability company, the general partner of ABRY Partners VII Co-Investment Fund, L.P., may be deemed to share voting and dispositive power with respect to any Shares beneficially owned by EMC Aggregator, LLC, but disclaims beneficial ownership of such Shares.
F8ABRY VII Capital Investors, LLC, a Delaware limited liability company, the general partner of ABRY VII Capital Partners, L.P. and member of ABRY Partners VII Co-Investment GP, LLC, may be deemed to share voting and dispositive power with respect to any Shares beneficially owned by EMC Aggregator, LLC, but disclaims beneficial ownership of such Shares.
F9ABRY GP, a Delaware limited liability company, the general partner of ABRY Investment Partnership, L.P., may be deemed to share voting and dispositive power with respect to any Shares beneficially owned by EMC Aggregator, LLC, but disclaims beneficial ownership of such Shares.