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

SCHEDULE 13G
Under the Securities Exchange Act of 1934

(Amendment No.  )*

Kirby Corp.
-----------------------------------------------------
(Name of Issuer)

Common Stock
-----------------------------------------------------
(Title of Class of Securities)

497266106
-----------------------------------------------------
(CUSIP Number)

December 31, 2020
-----------------------------------------------------
(Date of Event which Requires Filing of this Statement)

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

[X]  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).

1. NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Diamond Hill Capital Management, Inc. ("Diamond Hill")
31-1019984

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a)    [ ]
(b)    [ ]

3. SEC USE ONLY

4. CITIZENSHIP OR PLACE OF ORGANIZATION
An Ohio Corporation

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

5. SOLE VOTING POWER
2,960,165

6. SHARED VOTING POWER
0

7. SOLE DISPOSITIVE POWER
3,057,643

8. SHARED DISPOSITIVE POWER
0

9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,057,643

10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
[ ]

11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.1%

12. TYPE OF REPORTING PERSON
IA


Item 1.
(a) Name of Issuer
Kirby Corp.

(b) Address of Issuer's Principal Executive Offices
55 Waugh Dr., Suite 1000, Houston, TX 77007

Item 2.
(a) Name of Person Filing
Diamond Hill Capital Management, Inc.

(b) Address of the Principal Office or, if none, residence
325 John H. McConnell Blvd., Suite 200, Columbus, OH 43215

(c) Citizenship
An Ohio Corporation

(d) Title of Class of Securities
Common Stock

(e) CUSIP Number
497266106

Item 3.  If this statement is filed pursuant to Sections 240.13d-1(b) or
240.13d-2(b) or (c), check whether the person filing is a:

[  ]Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

[  ]Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

[  ]Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

[  ]Investment company registered under section 8 of the Investment Company
 Act of 1940 (15 U.S.C. 80a-8).

[X]An investment adviser in accordance with Section 240.13d-1(b)(1)(ii)(E);

[  ]An employee benefit plan or endowment fund in accordance
with Section  240.13d-1(b)(1)(ii)(F);

[  ]A parent holding company or control person in accordance
with Section 240.13d-1(b)(1)(ii)(G);

[  ]A savings associations as defined in Section 3(b) of the Federal Deposit
Insurance Act (12 U.S.C. 1813);

[  ]A church plan that is excluded from the definition of an investment
company under section 3(c)(14) of the Investment Company Act
of 1940 (15 U.S.C. 80a-3);

[  ]Group, in accordance with section 240.13d-1(b)(1)(ii)(J).

Item 4.  Ownership.
Provide the following information regarding the aggregate number and percentage
of the class of securities of the issuer identified in Item 1.

(a) Amount beneficially owned:  3,057,643
(b) Percent of class:  5.1%
(c) Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:  2,960,165
(ii) Shared power to vote or to direct the vote:  0
(iii)Sole power to dispose or to direct the disposition of:  3,057,643
(iv) Shared power to dispose or to direct the disposition of:  0

Item 5.  Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities, check the following     [ ].

Item 6.  Ownership of More than Five Percent on Behalf of Another Person.

	Diamond Hill does not serve as custodian of the assets of any of its
	clients; accordingly, in each instance only the client or the client's
	custodian or trustee bank has the right to receive dividends paid with
	respect to, and proceeds from the sale of, such securities.

	The ultimate power to direct the receipt of dividends paid with respect to,
	and the proceeds from the sale of, such securities, is vested in the
	individual and institutional clients which Diamond Hill serves as investment
	adviser. Any and all discretionary authority which has been delegated to
	Diamond Hill may be revoked in whole or in part at any time.

	Except as may be indicated if this is a joint filing with one of the
	registered investment companies sponsored by Diamond Hill which it also
	serves as investment adviser ("Diamond Hill Funds"), not more than 5% of the
	class of such securities is owned by any one client subject to the
	investment advice of Diamond Hill.

Item 7.  Identification and Classification of the Subsidiary Which Acquired
the Security Being Reported on By the Parent Holding Company.
     Not Applicable

Item 8.  Identification and Classification of Members of the Group.
     Not Applicable

Item 9.  Notice of Dissolution of Group.
     Not Applicable

Item 10.  Certification.

The following certification shall be included if the statement is filed
pursuant to Section 240.13d-1(b):

By signing below I certify that, to the best of my knowledge and belief, the
securities referred to above were acquired and are held in the ordinary
course of business and were not acquired and are not held for the purpose
of or with the effect of changing or influencing the control of the issuer of
the securities and were not acquired and are not held in connection with or
as a participant in any transaction having that purpose or effect.

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: 2/11/2021

By: /s/ Gary Young


Gary Young
Chief Compliance Officer