13D Filing: Southeastern Asset Management and Sonic Corp (SONC)

Sonic Corp (NASDAQ:SONC): Mason Hawkins’ Southeastern Asset Management filed an amended 13D.

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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
Southeastern Asset Management, Inc. I.D. No. 6 6,370,000 6,370,000 6,436,879 17.3 %
Longleaf Partners Small-Cap Fund I.D. No. 6 6,370,000 6,370,000 17.1 %
O. Mason Hawkins I.D. No. XXX-XX-XXXX 0.0%

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Page 1 of 4 – SEC Filing

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D
Under the Securities Exchange Act of 1934

Amendment No. 1

Sonic Corp.
___________________________________________
(Name of Issuer)

Common Stock
___________________________________________
(Title of Class and Securities)

835451105
___________________________________________
(CUSIP Number of Class of Securities)

O. Mason Hawkins
Chairman of the Board and C.E.O.
and
Andrew R. McCarroll
Vice President & General Counsel

Southeastern Asset Management, Inc.
6410 Poplar Avenue, Suite 900
Memphis, TN 38119
(901) 761-2474
___________________________________________________________

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

April 3, 2018
___________________________________________
(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 which is the subject of this Schedule 13D, and is filing this
Schedule because of Sections 240.13d-1(e), 240.13d-1(f), or 240.13d-1(g), check
the following box: [X]

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Page 2 of 4 – SEC Filing

CUSIP No. 835451105 13D
___________________________________________________________________
(1) NAMES OF REPORTING PERSONS
Southeastern Asset Management, Inc. I.D. No. 62-0951781
___________________________________________________________________
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
(a)
(b) X
___________________________________________________________________
(3) SEC USE ONLY
___________________________________________________________________
(4) SOURCE OF FUNDS
OO: Funds of investment advisory clients
___________________________________________________________________
(5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ]
___________________________________________________________________
(6) CITIZENSHIP OR PLACE OF ORGANIZATION
Tennessee
___________________________________________________________________
: (7) SOLE VOTING POWER
: (Discretionary Accounts)
NUMBER OF SHARES BENEFICIALLY : 0 shares
OWNED BY EACH REPORTING PERSON ________________________________
WITH : (8) SHARED OR NO VOTING POWER

: 6,370,000 shares (Shared)
66,879 shares (None)
________________________________
: (9) SOLE DISPOSITIVE POWER
: (Discretionary Accounts)
: 66,879 shares
________________________________
: (10) SHARED DISPOSITIVE POWER
: 6,370,000 shares

___________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

6,436,879 shares
___________________________________________________________________
(12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES
CERTAIN SHARES
___________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
17.3 %
___________________________________________________________________
(14) TYPE OF REPORTING PERSON
IA
___________________________________________________________________

CUSIP No. 835451105 13D
___________________________________________________________________
(1) NAMES OF REPORTING PERSONS
Longleaf Partners Small-Cap Fund I.D. No. 62-1376170
___________________________________________________________________
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
(a)
(b) X
___________________________________________________________________
(3) SEC USE ONLY
___________________________________________________________________
(4) SOURCE OF FUNDS
OO: Funds of investment company shareholders
___________________________________________________________________
(5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ]
___________________________________________________________________
(6) CITIZENSHIP OR PLACE OF ORGANIZATION
Massachusetts
___________________________________________________________________
: (7) SOLE VOTING POWER
:
NUMBER OF SHARES BENEFICIALLY : None
OWNED BY EACH REPORTING PERSON ________________________________
WITH : (8) SHARED VOTING POWER

: 6,370,000 shares

________________________________
: (9) SOLE DISPOSITIVE POWER
:
: None
________________________________
: (10) SHARED DISPOSITIVE POWER
: 6,370,000 shares

___________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

6,370,000 shares
___________________________________________________________________
(12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES
CERTAIN SHARES
___________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
17.1 %
___________________________________________________________________
(14) TYPE OF REPORTING PERSON
IV
___________________________________________________________________

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Page 3 of 4 – SEC Filing

CUSIP No. 835451105 13D
___________________________________________________________________
(1) NAMES OF REPORTING PERSONS
O. Mason Hawkins I.D. No. XXX-XX-XXXX
___________________________________________________________________
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
(a)
(b) X
___________________________________________________________________
(3) SEC USE ONLY
___________________________________________________________________
(4) SOURCE OF FUNDS
OO: None
___________________________________________________________________
(5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ]
___________________________________________________________________
(6) CITIZENSHIP OR PLACE OF ORGANIZATION
Citizen of United States
___________________________________________________________________
: (7) SOLE VOTING POWER
: (Discretionary Accounts)
NUMBER OF SHARES BENEFICIALLY : None
OWNED BY EACH REPORTING PERSON ________________________________
WITH : (8) SHARED VOTING POWER

: None
________________________________
: (9) SOLE DISPOSITIVE POWER

: None
________________________________
: (10) SHARED DISPOSITIVE POWER

: None
___________________________________________________________________
(11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

None (See Item 2)
___________________________________________________________________
(12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES
CERTAIN SHARES
___________________________________________________________________
(13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11
0.0%
___________________________________________________________________
(14) TYPE OF REPORTING PERSON
IN
___________________________________________________________________

Item 5. Interest In Securities Of The Issuer

(a) The aggregate number and percentage of Securities to which this
Schedule 13D relates is 6,436,879 shares of the common stock of the Issuer,
constituting approximately 17.3% of the 37,154,893 shares outstanding.

Common % of outstanding
Shares Common Shares
Held
___________________________________________________________________
Voting Authority

Sole: 0 0.0%
Shared: 6,370,000* 17.1%
None: 66,879 0.2%

Total 6,436,879 17.3%

*Consists of shares owned by Longleaf Partners Small-Cap Fund, a series of
Longleaf Partners Funds Trust, an open-end management investment company
registered under the Investment Company Act of 1940.

Dispositive Authority

Sole: 66,879 0.2%
Shared: 6,370,000* 17.1%

Total 6,436,879 17.3%

*Consists of shares owned by Longleaf Partners Small-Cap Fund, a series of
Longleaf Partners Funds Trust, an open-end management investment company
registered under the Investment Company Act of 1940.

(b) Southeastern generally has the sole power to dispose of or to
direct the disposition of the Securities held for discretionary accounts of its
investment clients, and may be granted the sole power to vote or direct the
vote of such Securities; such powers may be retained by or shared with the
respective clients for shared or non-discretionary accounts. Shares held by
any Series of Longleaf Partners Funds Trust are reported in the “shared”
category.

(c) There have been no purchase or sale transactions in the
Securities during the past sixty days.

(d) The investment advisory clients of Southeastern have the sole
right to receive and, subject to notice, to withdraw the proceeds from the sale
of the Securities, and the sole power to direct the receipt of dividends from
any of the Securities held for their respective accounts. Such clients may
also terminate the investment advisory agreements without penalty upon
appropriate notice. Southeastern does not have an economic interest in any of
the Securities reported herein.

(e) Not applicable.

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Page 4 of 4 – SEC Filing

Signatures

After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

Dated: April 4, 2018

SOUTHEASTERN ASSET MANAGEMENT, INC.

By /s/ Andrew R. McCarroll
_______________________________
Andrew R. McCarroll
General Counsel

LONGLEAF PARTNERS SMALL-CAP FUND
By: Southeastern Asset Management, Inc.

By /s/ Andrew R. McCarroll
_______________________________
Andrew R. McCarroll
General Counsel

O. MASON HAWKINS
(Individually)

/s/ O. Mason Hawkins
_______________________________

Joint Filing Agreement

In accordance with Rule 13d-1(k) under the Securities Exchange Act
of 1934, the persons or entities named below agree to the joint
filing on behalf of each of them of this Schedule 13G with respect
to the Securities of the Issuer and further agree that this joint
filing agreement be included as an exhibit to this Schedule 13G. In
evidence thereof, the undersigned hereby execute this Agreement as
of April 4, 2018.

Southeastern Asset Management, Inc.

By /s/ Andrew R. McCarroll
__________________________________
Andrew R. McCarroll
Vice President and General Counsel

Longleaf Partners Small-Cap Fund

By: Southeastern Asset Management, Inc.

By /s/ Andrew R. McCarroll
_______________________________
Andrew R. McCarroll
Vice President & General Counsel

O. Mason Hawkins, Individually

/s/ O. Mason Hawkins
_______________________________

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