13D Filing: True Wind Capital, L.p. and Zix Corp (NASDAQ:ZIXI)

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You can access the original SEC filing by clicking here.

Ownership Summary Table

Name Sole Voting Power Shared Voting Power Sole Dispositive Power Shared Dispositive Power Aggregate Amount Owned Power Percent of Class
Zephyr Holdco 0 10,782,865 0 10,782,865 10,782,865 19.9%
True Wind Capital 0 10,782,865 0 10,782,865 10,782,865 19.9%
True Wind Capital GP 0 10,782,865 0 10,782,865 10,782,865 19.9%
James H. Greene, Jr 0 10,782,865 0 10,782,865 10,782,865 19.9%
Adam H. Clammer 0 10,782,865 0 10,782,865 10,782,865 19.9%

Page 1 of 16 – SEC Filing

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No.     )*

ZIX
CORPORATION

(Name of Issuer)

Common Stock, $0.01 par value per share

(Title of Class of Securities)

98974P100

(CUSIP Number)

James H. Greene, Jr.

True Wind Capital Management, L.P.

Four Embarcadero Center, Suite 2350

San Francisco, CA 94111

(415) 780-9975

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

With copies to:

William Brentani, Esq.

Simpson Thacher & Bartlett LLP

2475 Hanover Street

Palo
Alto, California 94304

(650) 251-5000

February 20, 2019

(Date of Event which Requires Filing of this Statement)

If the filing person has
previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e),
240.13d-1(f) or 240.13d-1(g), check the following box. ☐

Note: Schedules filed in paper format shall
include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent.

*

The remainder of this cover page shall be filled out for a reporting persons 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.

The information required on the remainder of this cover page shall not be deemed to be filed for the purpose of Section 18 of the Securities
Exchange Act of 1934, as amended (the Exchange Act), or otherwise subject to the liabilities of that section of the Exchange Act but shall be subject to all other provisions of the Exchange Act (however, see the Notes).

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