Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

NAMES OF REPORTING PERSONS

Institutional Venture Partners XIII, L.P.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ☐        (b)  ☒ (1)

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

0 shares

SHARED VOTING POWER

2,655,365 shares (2)

SOLE DISPOSITIVE POWER

0 shares

SHARED DISPOSITIVE POWER

2,655,365 shares (2)

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,655,365 shares (2)

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.6% (3)(4)(5)

TYPE OF REPORTING PERSON*

PN

This Schedule 13G is filed by Institutional Venture Partners XIII, L.P. (“IVP XIII”), Institutional Venture Management XIII, LLC (“IVM XIII”), Todd C. Chaffee (“Chaffee”), Norman A. Fogelsong (“Fogelsong”), Stephen J. Harrick (“Harrick”), J. Sanford Miller (“Miller”) and Dennis B. Phelps (“Phelps” together with IVP XIII, IVM XIII, Chaffee, Fogelsong, Harrick and Miller, collectively, the “Reporting Persons”). The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

The shares are held by IVP XIII. Consists of 1,602,683 shares of Class B Common Stock and 1,052,682 shares of Class A Common Stock. The Class B Common Stock is convertible at the holder’s option in the Issuer’s Class A Common Stock on a 1-for-1 basis. The holders of Class B Common Stock are entitled to ten votes per share and the holders of Class A Common Stock are entitled to one vote per share. IVM XIII serves as the sole general partner of IVP XIII and has sole voting and investment control over the shares owned by IVP XIII and may be deemed to own beneficially the shares held by IVP XIII. IVM XIII owns no securities of the Issuer directly. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XIII and share voting and dispositive power over the shares held by IVP XIII, and may be deemed to own beneficially the shares held by IVP XIII. The Managing Directors own no securities of the Issuer directly.

Based on 45,401,442 shares of Class A Common Stock outstanding (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the Securities and Exchange Commission (“SEC”) on November 8, 2018, plus 1,602,683 shares of Class B Common Stock held by the Reporting Persons as of December 31, 2018, which are treated as converted into Class A Common Stock only for the purpose of computing the percentage ownership of the Reporting Person.

The 1,602,683 shares of Class B Common Stock held by the Reporting Persons represent 63.7% of the Issuer’s aggregate Class B Common Stock based on a total of 2,517,684 shares of Class B Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018.

The 2,655,365 shares of Common Stock held by the Reporting Person represent 5.5% of the Issuer’s outstanding Common Stock based on a total of 47,919,126 shares of Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018 and represent approximately 24.2% of the combined voting power of the Issuer’s Common Stock.

NAMES OF REPORTING PERSONS

Institutional Venture Management XIII, LLC

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ☐        (b)  ☒ (1)

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

0 shares

SHARED VOTING POWER

2,655,365 shares (2)

SOLE DISPOSITIVE POWER

0 shares

SHARED DISPOSITIVE POWER

2,655,365 shares (2)

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,655,365 shares (2)

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.6% (3)(4)(5)

TYPE OF REPORTING PERSON*

OO

This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

The shares are held by IVP XIII. Consists of 1,602,683 shares of Class B Common Stock and 1,052,682 shares of Class A Common Stock. The Class B Common Stock is convertible at the holder’s option in the Issuer’s Class A Common Stock on a 1-for-1 basis. The holders of Class B Common Stock are entitled to ten votes per share and the holders of Class A Common Stock are entitled to one vote per share. IVM XIII serves as the sole general partner of IVP XIII and has sole voting and investment control over the shares owned by IVP XIII and may be deemed to own beneficially the shares held by IVP XIII. IVM XIII owns no securities of the Issuer directly. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XIII and share voting and dispositive power over the shares held by IVP XIII, and may be deemed to own beneficially the shares held by IVP XIII. The Managing Directors own no securities of the Issuer directly.

Based on 45,401,442 shares of Class A Common Stock outstanding (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018, plus 1,602,683 shares of Class B Common Stock held by the Reporting Persons as of December 31, 2018, which are treated as converted into Class A Common Stock only for the purpose of computing the percentage ownership of the Reporting Person.

The 1,602,683 shares of Class B Common Stock held by the Reporting Persons represent 63.7% of the Issuer’s aggregate Class B Common Stock based on a total of 2,517,684 shares of Class B Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018.

The 2,655,365 shares of Common Stock held by the Reporting Person represent 5.5% of the Issuer’s outstanding Common Stock based on a total of 47,919,126 shares of Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018 and represent approximately 24.2% of the combined voting power of the Issuer’s Common Stock.

NAMES OF REPORTING PERSONS

Todd C. Chaffee

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ☐        (b)  ☒ (1)

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

United States of America

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

0 shares

SHARED VOTING POWER

2,655,365 shares (2)

SOLE DISPOSITIVE POWER

0 shares

SHARED DISPOSITIVE POWER

2,655,365 shares (2)

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,655,365 shares (2)

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.6% (3)(4)(5)

TYPE OF REPORTING PERSON*

IN

This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

The shares are held by IVP XIII. Consists of 1,602,683 shares of Class B Common Stock and 1,052,682 shares of Class A Common Stock. The Class B Common Stock is convertible at the holder’s option in the Issuer’s Class A Common Stock on a 1-for-1 basis. The holders of Class B Common Stock are entitled to ten votes per share and the holders of Class A Common Stock are entitled to one vote per share. IVM XIII serves as the sole general partner of IVP XIII and has sole voting and investment control over the shares owned by IVP XIII and may be deemed to own beneficially the shares held by IVP XIII. IVM XIII owns no securities of the Issuer directly. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XIII and share voting and dispositive power over the shares held by IVP XIII, and may be deemed to own beneficially the shares held by IVP XIII. The Managing Directors own no securities of the Issuer directly.

Based on 45,401,442 shares of Class A Common Stock outstanding (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018, plus 1,602,683 shares of Class B Common Stock held by the Reporting Persons as of December 31, 2018, which are treated as converted into Class A Common Stock only for the purpose of computing the percentage ownership of the Reporting Person.

The 1,602,683 shares of Class B Common Stock held by the Reporting Persons represent 63.7% of the Issuer’s aggregate Class B Common Stock based on a total of 2,517,684 shares of Class B Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018.

The 2,655,365 shares of Common Stock held by the Reporting Person represent 5.5% of the Issuer’s outstanding Common Stock based on a total of 47,919,126 shares of Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018 and represent approximately 24.2% of the combined voting power of the Issuer’s Common Stock.

NAMES OF REPORTING PERSONS

Norman A. Fogelsong

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ☐        (b)  ☒ (1)

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

United States of America

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

0 shares

SHARED VOTING POWER

2,655,365 shares (2)

SOLE DISPOSITIVE POWER

0 shares

SHARED DISPOSITIVE POWER

2,655,365 shares (2)

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,655,365 shares (2)

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.6% (3)(4)(5)

TYPE OF REPORTING PERSON*

IN

This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

The shares are held by IVP XIII. Consists of 1,602,683 shares of Class B Common Stock and 1,052,682 shares of Class A Common Stock. The Class B Common Stock is convertible at the holder’s option in the Issuer’s Class A Common Stock on a 1-for-1 basis. The holders of Class B Common Stock are entitled to ten votes per share and the holders of Class A Common Stock are entitled to one vote per share. IVM XIII serves as the sole general partner of IVP XIII and has sole voting and investment control over the shares owned by IVP XIII and may be deemed to own beneficially the shares held by IVP XIII. IVM XIII owns no securities of the Issuer directly. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XIII and share voting and dispositive power over the shares held by IVP XIII, and may be deemed to own beneficially the shares held by IVP XIII. The Managing Directors own no securities of the Issuer directly.

Based on 45,401,442 shares of Class A Common Stock outstanding (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018, plus 1,602,683 shares of Class B Common Stock held by the Reporting Persons as of December 31, 2018, which are treated as converted into Class A Common Stock only for the purpose of computing the percentage ownership of the Reporting Person.

The 1,602,683 shares of Class B Common Stock held by the Reporting Persons represent 63.7% of the Issuer’s aggregate Class B Common Stock based on a total of 2,517,684 shares of Class B Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018.

The 2,655,365 shares of Common Stock held by the Reporting Person represent 5.5% of the Issuer’s outstanding Common Stock based on a total of 47,919,126 shares of Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018 and represent approximately 24.2% of the combined voting power of the Issuer’s Common Stock.

NAMES OF REPORTING PERSONS

Stephen J. Harrick

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ☐        (b)  ☒ (1)

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

United States of America

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

0 shares

SHARED VOTING POWER

2,655,365 shares (2)

SOLE DISPOSITIVE POWER

0 shares

SHARED DISPOSITIVE POWER

2,655,365 shares (2)

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,655,365 shares (2)

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.6% (3)(4)(5)

TYPE OF REPORTING PERSON*

IN

This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

The shares are held by IVP XIII. Consists of 1,602,683 shares of Class B Common Stock and 1,052,682 shares of Class A Common Stock. The Class B Common Stock is convertible at the holder’s option in the Issuer’s Class A Common Stock on a 1-for-1 basis. The holders of Class B Common Stock are entitled to ten votes per share and the holders of Class A Common Stock are entitled to one vote per share. IVM XIII serves as the sole general partner of IVP XIII and has sole voting and investment control over the shares owned by IVP XIII and may be deemed to own beneficially the shares held by IVP XIII. IVM XIII owns no securities of the Issuer directly. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XIII and share voting and dispositive power over the shares held by IVP XIII, and may be deemed to own beneficially the shares held by IVP XIII. The Managing Directors own no securities of the Issuer directly.

Based on 45,401,442 shares of Class A Common Stock outstanding (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018, plus 1,602,683 shares of Class B Common Stock held by the Reporting Persons as of December 31, 2018, which are treated as converted into Class A Common Stock only for the purpose of computing the percentage ownership of the Reporting Person.

The 1,602,683 shares of Class B Common Stock held by the Reporting Persons represent 63.7% of the Issuer’s aggregate Class B Common Stock based on a total of 2,517,684 shares of Class B Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018.

The 2,655,365 shares of Common Stock held by the Reporting Person represent 5.5% of the Issuer’s outstanding Common Stock based on a total of 47,919,126 shares of Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018 and represent approximately 24.2% of the combined voting power of the Issuer’s Common Stock.

NAMES OF REPORTING PERSONS

J. Sanford Miller

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ☐        (b)  ☒ (1)

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

United States of America

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

0 shares

SHARED VOTING POWER

2,655,365 shares (2)

SOLE DISPOSITIVE POWER

0 shares

SHARED DISPOSITIVE POWER

2,655,365 shares (2)

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,655,365 shares (2)

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.6% (3)(4)(5)

TYPE OF REPORTING PERSON*

IN

This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

The shares are held by IVP XIII. Consists of 1,602,683 shares of Class B Common Stock and 1,052,682 shares of Class A Common Stock. The Class B Common Stock is convertible at the holder’s option in the Issuer’s Class A Common Stock on a 1-for-1 basis. The holders of Class B Common Stock are entitled to ten votes per share and the holders of Class A Common Stock are entitled to one vote per share. IVM XIII serves as the sole general partner of IVP XIII and has sole voting and investment control over the shares owned by IVP XIII and may be deemed to own beneficially the shares held by IVP XIII. IVM XIII owns no securities of the Issuer directly. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XIII and share voting and dispositive power over the shares held by IVP XIII, and may be deemed to own beneficially the shares held by IVP XIII. The Managing Directors own no securities of the Issuer directly.

Based on 45,401,442 shares of Class A Common Stock outstanding (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018, plus 1,602,683 shares of Class B Common Stock held by the Reporting Persons as of December 31, 2018, which are treated as converted into Class A Common Stock only for the purpose of computing the percentage ownership of the Reporting Person.

The 1,602,683 shares of Class B Common Stock held by the Reporting Persons represent 63.7% of the Issuer’s aggregate Class B Common Stock based on a total of 2,517,684 shares of Class B Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018.

The 2,655,365 shares of Common Stock held by the Reporting Person represent 5.5% of the Issuer’s outstanding Common Stock based on a total of 47,919,126 shares of Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018 and represent approximately 24.2% of the combined voting power of the Issuer’s Common Stock.

NAMES OF REPORTING PERSONS

Dennis B. Phelps

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)  ☐        (b)  ☒ (1)

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

United States of America

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

0 shares

SHARED VOTING POWER

2,655,365 shares (2)

SOLE DISPOSITIVE POWER

0 shares

SHARED DISPOSITIVE POWER

2,655,365 shares (2)

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,655,365 shares (2)

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

5.6% (3)(4)(5)

TYPE OF REPORTING PERSON*

IN

This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

The shares are held by IVP XIII. Consists of 1,602,683 shares of Class B Common Stock and 1,052,682 shares of Class A Common Stock. The Class B Common Stock is convertible at the holder’s option in the Issuer’s Class A Common Stock on a 1-for-1 basis. The holders of Class B Common Stock are entitled to ten votes per share and the holders of Class A Common Stock are entitled to one vote per share. IVM XIII serves as the sole general partner of IVP XIII and has sole voting and investment control over the shares owned by IVP XIII and may be deemed to own beneficially the shares held by IVP XIII. IVM XIII owns no securities of the Issuer directly. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XIII and share voting and dispositive power over the shares held by IVP XIII, and may be deemed to own beneficially the shares held by IVP XIII. The Managing Directors own no securities of the Issuer directly.

Based on 45,401,442 shares of Class A Common Stock outstanding (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018, plus 1,602,683 shares of Class B Common Stock held by the Reporting Persons as of December 31, 2018, which are treated as converted into Class A Common Stock only for the purpose of computing the percentage ownership of the Reporting Person.

The 1,602,683 shares of Class B Common Stock held by the Reporting Persons represent 63.7% of the Issuer’s aggregate Class B Common Stock based on a total of 2,517,684 shares of Class B Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018.

The 2,655,365 shares of Common Stock held by the Reporting Person represent 5.5% of the Issuer’s outstanding Common Stock based on a total of 47,919,126 shares of Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018 and represent approximately 24.2% of the combined voting power of the Issuer’s Common Stock.

Name of Reporting Persons Filing:

Institutional Venture Partners XIII L.P. (“IVP XIII”)

Institutional Venture Management XIII LLC (“IVM XIII”)

Todd C. Chaffee (“Chaffee”)

Norman A. Fogelsong (“Fogelsong”)

Stephen J. Harrick (“Harrick”)

J. Sanford Miller (“Miller”)

Dennis B. Phelps (“Phelps”)

Citizenship:

IVP XIII

Delaware

IVM XIII

Delaware

Chaffee

United States of America

Fogelsong

United States of America

Harrick

United States of America

Miller

United States of America

Phelps

United States of America

Title of Class of Securities:Class A Common Stock

CUSIP Number:60255W 10 5

Not applicable.

Ownership.

Reporting Persons

IVP XIII

IVM XIII (2)

Chaffee (2)

Fogelsong (2)

Harrick (2)

Miller (2)

Phelps (2)

Represents the number of shares of Common Stock held by IVP XIII.

IVM XIII serves as the sole general partner of IVP XIII and has sole voting and investment control over the shares owned by IVP XIII and may be deemed to own beneficially the shares held by IVP XIII. IVM XIII owns no securities of the Issuer directly. Chaffee, Fogelsong, Harrick, Miller and Phelps are Managing Directors of IVM XIII and share voting and dispositive power over the shares held by IVP XIII, and may be deemed to own beneficially the shares held by IVP XIII. The Managing Directors own no securities of the Issuer directly.

Based on 45,401,442 shares of Class A Common Stock outstanding (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018, plus 1,602,683 shares of Class B Common Stock held by the Reporting Persons as of December 31, 2018, which are treated as converted into Class A Common Stock only for the purpose of computing the percentage ownership of the Reporting Person.

The 1,602,683 shares of Class B Common Stock held by the Reporting Persons represent 63.7% of the Issuer’s aggregate Class B Common Stock based on a total of 2,517,684 shares of Class B Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018.

The 2,655,365 shares of Common Stock held by the Reporting Person represent 5.5% of the Issuer’s outstanding Common Stock based on a total of 47,919,126 shares of Common Stock (as of November 5, 2018), as reported by the Issuer on a Form 10-Q for the quarterly period ended September 30, 2018 filed with the SEC on November 8, 2018 and represent approximately 24.2% of the combined voting power of the Issuer’s Common Stock.

Ownership of Five Percent or Less of a Class.

Ownership of More Than Five Percent on Behalf of Another Person.

Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company.

Identification and Classification of Members of the Group.

Notice of Dissolution of Group.

Certification.

/s/ Tracy Hogan

/s/ Tracy Hogan

       /s/ Tracy Hogan

       /s/ Tracy Hogan

       /s/ Tracy Hogan

       /s/ Tracy Hogan

       /s/ Tracy Hogan

Joint Filing Statement