Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock ($0.0001 par value)^F3,F4,F1	Jul 25, 2018	P	5,358	$9.4904	A	340,839	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F4,F2	Jul 25, 2018	P	3,542	$9.4904	A	228,442	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F5,F1	Aug 15, 2018	P	7,398	$9.1435	A	348,237	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F5,F2	Aug 15, 2018	P	4,824	$9.1435	A	233,266	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F1	Aug 24, 2018	P	1,816	$9.78	A	350,053	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F2	Aug 24, 2018	P	1,184	$9.78	A	234,450	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F6,F1	Aug 27, 2018	P	1,518	$10.0031	A	351,571	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F6,F2	Aug 27, 2018	P	990	$10.0031	A	235,440	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F1	Aug 29, 2018	P	605	$10.325	A	352,176	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F2	Aug 29, 2018	P	395	$10.325	A	235,835	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F1	Sep 11, 2018	P	908	$9.99	A	353,084	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F2	Sep 11, 2018	P	592	$9.99	A	236,427	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F1	Oct 4, 2018	P	240	$9.945	A	353,324	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F2	Oct 4, 2018	P	160	$9.945	A	236,587	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F1	Oct 5, 2018	P	779	$9.4954	A	354,103	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F2	Oct 5, 2018	P	521	$9.4954	A	237,108	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F1	Oct 9, 2018	P	1,798	$9.7073	A	355,901	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F2	Oct 9, 2018	P	1,202	$9.7073	A	238,310	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F7,F1	Oct 15, 2018	P	3,463	$8.9078	A	359,364	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F7,F2	Oct 15, 2018	P	2,315	$8.9078	A	240,625	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F1	Oct 24, 2018	P	599	$8.6784	A	359,963	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F2	Oct 24, 2018	P	401	$8.6784	A	241,026	I	By: Greenhaven Road Capital Fund 2, L.P.
Common Stock ($0.0001 par value)^F8,F1	Oct 26, 2018	P	3,517	$7.8467	A	363,480	I	By: Greenhaven Road Capital Fund 1, L.P.
Common Stock ($0.0001 par value)^F8,F2	Oct 26, 2018	P	2,352	$7.8467	A	243,378	I	By: Greenhaven Road Capital Fund 2, L.P.

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1Greenhaven Road Capital Fund 1, L.P. ("Fund 1") is a private investment vehicle. Fund 1 directly owns these securities reported herein. Greenhaven Road Investment Management, LP (the "Investment Manager") is the investment manager of Fund 1. MVM Funds, LLC (the "General Partner") is the general partner of Fund 1 and the Investment Manager. Scott Miller is the controlling person of the General Partner. Each Reporting Person disclaims beneficial ownership of all securities reported herein, except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities and Exchange Act of 1934 or for any other purpose.
F2Greenhaven Road Capital Fund 2, L.P. ("Fund 2") is a private investment vehicle. Fund 2 directly owns these securities reported herein. The Investment Manager is the investment manager of Fund 2. The General Partner is the general partner of Fund 2. Each Reporting Person disclaims beneficial ownership of all securities reported herein, except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Securities and Exchange Act of 1934 or for any other purpose.
F3All prices reported herein are exclusive of brokerage commissions.
F4The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $9.48 to $9.50, inclusive. The Reporting Persons undertake 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 acquired at each separate price within the ranges set forth in footnotes (4) through (8) of this Form 4.
F5The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $9.07653 to $9.20, inclusive.
F6The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $9.9997 to $10.01, inclusive.
F7The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $8.8785333 to $8.92, inclusive.
F8The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $7.8453167 to $7.8481178, inclusive.