13G Filing: International Value Advisers and Cys Investments Inc. (CYS)

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities
Exchange Act of 1934
(Amendment No. 4)*

CYS Investments
Inc. Series B 7.50% Pfd

(Name of Issuer)

Common Stock
pfd

(Title of Class of Securities)

12673A306

(CUSIP Number)

International
Value Advisers, LLC, 717 Fifth Avenue, 10^th Floor, New York, NY 10022

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

April
30, 2017

(Date of Event which Requires Filing
of this Statement)

Check
the appropriate box to designate the rule pursuant to which this Schedule is filed:
☒  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.

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
(“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions
of the Act (however, see the Notes).