13D Filing: Berkshire Hathaway and USG Corp (USG)

USG Corp (NYSE:USG): Warren Buffett’s Berkshire Hathaway filed an amended 13D.

You can check out Berkshire Hathaway’s latest holdings and filings here.

Please follow Berkshire Hathaway (if you aren’t already doing so) to get real-time email alerts whenever we publish an article about Berkshire Hathaway or update its stock holdings.

Follow Warren Buffett's Berkshire Hathaway

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
Warren E. Buffett 0 43,387,980 0 43,387,980 43,387,980 30.8%
Berkshire Hathaway Inc 0 43,387,980 0 43,387,980 43,387,980 30.8%
National Indemnity Company 0 39,002,016 0 39,002,016 39,002,016 27.6%
Berkshire Hathaway Life Insurance Company of Nebraska 0 14,035,088 0 14,035,088 14,035,088 9.9%
Berkshire Hathaway Assurance Corporation 0 7,894,736 0 7,894,736 7,894,736 5.6%
General Re Corporation 0 4,385,964 0 4,385,964 4,385,964 3.1%
General Reinsurance Corporation 0 4,385,964 0 4,385,964 4,385,964 3.1%
General Re Life Corporation 0 4,385,964 0 4,385,964 4,385,964 3.1%

Follow Warren Buffett's Berkshire Hathaway

Page 1 of 11 – SEC Filing

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

SCHEDULE
13D/A

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED

PURSUANT TO § 240.13d-2(a)

(Amendment No. 9)

USG
CORPORATION

(Name of Issuer)

COMMON STOCK, PAR VALUE $0.10 PER SHARE

(Title of Class of Securities)

903293 40 5

(CUSIP
Number)

MARC D. HAMBURG

BERKSHIRE HATHAWAY INC.

3555 FARNAM STREET

OMAHA, NEBRASKA 68131

(402) 346-1400

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

March 23, 2018

(Date of Event Which Requires Filing of this Statement)

If the 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.

1 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 (the 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).

Follow Usg Corp (NYSE:USG)

Page 2 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE 2 OF 11 PAGES
  1 

NAMES OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Warren E. Buffett

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ☒        (b)  ☐

  3

SEC USE ONLY

  4

SOURCE OF FUNDS

AF

  5

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) or 2(f)  ☐

  6

CITIZENSHIP OR PLACE OF
ORGANIZATION

U.S.
citizen

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

  7 

SOLE VOTING POWER

0 (see Item 5)

  8

SHARED VOTING POWER

43,387,980 (see Item 5)

  9

SOLE DISPOSITIVE POWER

0 (see Item 5)

10

SHARED DISPOSITIVE POWER

43,387,980 (see Item
5)

11 

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

43,387,980 (see Item 5)

12

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES*  ☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

30.8% (see Item 5)

14

TYPE OF REPORTING PERSON*

IN, HC

* See instructions

Follow Usg Corp (NYSE:USG)

Page 3 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE
3
OF 11 PAGES
  1 

NAMES OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Berkshire Hathaway Inc.

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ☒        (b)  ☐

  3

SEC USE ONLY

  4

SOURCE OF FUNDS

AF

  5

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) or 2(f)  ☐

  6

CITIZENSHIP OR PLACE OF
ORGANIZATION

Delaware
corporation

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

  7 

SOLE VOTING POWER

0

  8

SHARED VOTING POWER

43,387,980 (see Item 5)

  9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

43,387,980 (see Item
5)

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

43,387,980 (see Item 5)

12

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES*  ☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

30.8% (see Item 5)

14 

TYPE OF REPORTING PERSON*

HC, CO

* See instructions

Follow Usg Corp (NYSE:USG)

Page 4 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE
4
OF 11 PAGES
  1 

NAMES OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

National Indemnity Company

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ☒        (b)  ☐

  3

SEC USE ONLY

  4

SOURCE OF FUNDS

AF

  5

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) or 2(f)  ☐

  6

CITIZENSHIP OR PLACE OF
ORGANIZATION

Nebraska
corporation

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

  7 

SOLE VOTING POWER

0

  8

SHARED VOTING POWER

39,002,016 (see Item 5)

  9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

39,002,016 (see Item
5)

11 

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

39,002,016 (see Item 5)

12

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES*  ☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

27.6% (see Item 5)

14

TYPE OF REPORTING PERSON*

IC, CO

* See instructions

Follow Usg Corp (NYSE:USG)

Page 5 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE 5 OF 11 PAGES
  1 

NAMES OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Berkshire Hathaway Life Insurance Company of Nebraska

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ☒        (b)  ☐

  3

SEC USE ONLY

  4

SOURCE OF FUNDS

WC

  5

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) or 2(f)  ☐

  6

CITIZENSHIP OR PLACE OF
ORGANIZATION

Nebraska
corporation

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

  7 

SOLE VOTING POWER

0

  8

SHARED VOTING POWER

14,035,088 (see Item 5)

  9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

14,035,088 (see Item
5)

11 

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

14,035,088 (see Item 5)

12

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES*  ☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

9.9% (see Item 5)

14

TYPE OF REPORTING PERSON*

IC, CO

* See instructions

Follow Usg Corp (NYSE:USG)

Page 6 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE 6 OF 11 PAGES
  1 

NAMES OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

Berkshire Hathaway Assurance Corporation

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ☒        (b)  ☐

  3

SEC USE ONLY

  4

SOURCE OF FUNDS

WC

  5

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) or 2(f)  ☐

  6

CITIZENSHIP OR PLACE OF
ORGANIZATION

New York
corporation

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

  7 

SOLE VOTING POWER

0

  8

SHARED VOTING POWER

7,894,736 (see Item 5)

  9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

7,894,736 (see Item 5)

11 

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

7,894,736 (see Item 5)

12

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES*  ☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

5.6% (see Item 5)

14

TYPE OF REPORTING PERSON*

IC, CO

* See instructions

Follow Usg Corp (NYSE:USG)

Page 7 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE 7 OF 11 PAGES
  1 

NAMES OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

General Re Corporation

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ☒        (b)  ☐

  3

SEC USE ONLY

  4

SOURCE OF FUNDS

AF

  5

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) or 2(f)  ☐

  6

CITIZENSHIP OR PLACE OF
ORGANIZATION

Delaware
corporation

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

  7 

SOLE VOTING POWER

0

  8

SHARED VOTING POWER

4,385,964 (see Item 5)

  9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

4,385,964 (see Item 5)

11 

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,385,964 (see Item 5)

12

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES*  ☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

3.1% (see Item 5)

14

TYPE OF REPORTING PERSON*

HC, CO

* See instructions

Follow Usg Corp (NYSE:USG)

Page 8 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE 8 OF 11 PAGES
  1 

NAMES OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

General Reinsurance Corporation

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ☒        (b)  ☐

  3

SEC USE ONLY

  4

SOURCE OF FUNDS

AF

  5

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) or 2(f)  ☐

  6

CITIZENSHIP OR PLACE OF
ORGANIZATION

Delaware
corporation

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

  7 

SOLE VOTING POWER

0

  8

SHARED VOTING POWER

4,385,964 (see Item 5)

  9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

4,385,964 (see Item 5)

11 

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,385,964 (see Item 5)

12

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES*  ☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

3.1% (see Item 5)

14

TYPE OF REPORTING PERSON*

IC, CO

* See instructions

Follow Usg Corp (NYSE:USG)

Page 9 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE 9 OF 11 PAGES
  1 

NAMES OF
REPORTING PERSONS

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

General Re Life Corporation

  2

CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP*

(a)  ☒        (b)  ☐

  3

SEC USE ONLY

  4

SOURCE OF FUNDS

WC

  5

CHECK BOX IF DISCLOSURE OF LEGAL
PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) or 2(f)  ☐

  6

CITIZENSHIP OR PLACE OF
ORGANIZATION

Connecticut
corporation

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

  7 

SOLE VOTING POWER

0

  8

SHARED VOTING POWER

4,385,964 (see Item 5)

  9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

4,385,964 (see Item 5)

11 

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

4,385,964 (see Item 5)

12

CHECK BOX IF THE AGGREGATE AMOUNT IN
ROW (11) EXCLUDES CERTAIN SHARES*  ☐

13

PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (11)

3.1% (see Item 5)

14

TYPE OF REPORTING PERSON*

IC, CO

* See instructions

Follow Usg Corp (NYSE:USG)

Page 10 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE
10
OF 11 PAGES

This Amendment No. 9 to Schedule 13D amends and supplements the information set forth in the Schedule 13D
filed by certain of the Reporting Persons with the Securities and Exchange Commission (the Commission) on January 31, 2006 (the 13D), as subsequently amended thereafter, with respect to the shares of Common Stock, par value
$0.10 per share (Common Stock) of USG Corporation (USG). Capitalized terms used herein without definition shall have the meaning assigned to such terms in the 13D.

Item 4 is hereby amended to add the following:

From time
to time, beginning many years ago, executives of Gebr. Knauf Verwaltungsgesellschaft KG (Gebr. Knauf) and/or C & G Verwaltungs GmbH (C & G Verwaltungs and, together with Gebr. Knauf, the Knauf
Entities) have contacted Berkshires Chief Executive Officer (CEO) to describe the Knauf Entities potential and conditional interest in a transaction with USG. Most recently, the Knauf Entities furnished Berkshire a copy
of a letter from Gebr. Knauf to USG dated March 15, 2018 in which Gebr. Knauf submitted an indicative and non-binding proposal for the acquisition of 100% of the outstanding shares of Common Stock of USG at $42.00 per share.

On March 23, 2018 Berkshires CEO and another Berkshire executive held a telephonic discussion with two executives of the Knauf Entities and three
representatives of one of the advisors of the Knauf Entities, during which Berkshire proposed to grant to the Knauf Entities an option to purchase all of the Berkshire Entities shares of Common Stock of USG, subject to legal review. Such
option would be exercisable only in connection with the consummation of a purchase by the Knauf Entities of all of the outstanding shares of Common Stock of USG that the Knauf Entities did not already own, at a price of not less than $42.00 per
share, subject to and in accordance with applicable law and contractual restrictions. The option exercise price per share was proposed by Berkshire to be the price per share paid to such other holders of Common Stock of USG by the Knauf Entities,
less the option purchase price of $2.00 per share to be paid to the Berkshire Entities upon entering into a definitive option agreement. The option would have a term of approximately 6 months.

The Knauf Entities have not responded to this proposal, and the Reporting Persons do not know whether the Knauf Entities will pursue further discussion with
Berkshire of the proposed option or will make an offer to purchase shares of Common Stock of USG. Berkshire has not agreed to support any plan or proposal by the Knauf Entities with respect to the Common Stock of USG, and there are no agreements,
written or otherwise, between the Reporting Persons and the Knauf Entities.

Depending upon price, market conditions, availability of funds, evaluation of
other investment opportunities, and other factors, the Reporting Persons may at any time and from time to time sell or otherwise dispose of some or all of the shares of Common Stock of USG held by them, either as contemplated by the Registration
Rights Agreement or in another manner permitted by applicable law.

Item 5 is hereby amended as follows:

The percentages of outstanding shares reported in this Amendment No. 9 are based on the number of shares of Common Stock disclosed as outstanding on USGs
Form 10-K filed with the Commission on February 14, 2018.

Follow Usg Corp (NYSE:USG)

Page 11 of 11 – SEC Filing


CUSIP NO. 903293 40 5 SCHEDULE 13D/A PAGE
11
OF 11 PAGES

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth
in this Statement on Schedule 13D is true, complete, and correct.

Dated: March 26, 2018

WARREN E. BUFFETT
By:

/s/ MARC D. HAMBURG

Name: Marc D. Hamburg
Title: Attorney-In-Fact
BERKSHIRE HATHAWAY INC.
By:

/s/ MARC D. HAMBURG

Name: Marc D. Hamburg
Title: Senior Vice President
NATIONAL INDEMNITY COMPANY
By:

/s/ MARC D. HAMBURG

Name: Marc D. Hamburg
Title: Attorney-In-Fact
BERKSHIRE HATHAWAY LIFE INSURANCE COMPANY OF NEBRASKA
By:

/s/ MARC D. HAMBURG

Name: Marc D. Hamburg
Title: Attorney-In-Fact
BERKSHIRE HATHAWAY ASSURANCE CORPORATION
By:

/s/ MARC D. HAMBURG

Name: Marc D. Hamburg
Title: Attorney-In-Fact
GENERAL RE CORPORATION
By:

/s/ MARC D. HAMBURG

Name: Marc D. Hamburg
Title: Attorney-In-Fact
GENERAL REINSURANCE CORPORATION
By:

/s/ MARC D. HAMBURG

Name: Marc D. Hamburg
Title: Attorney-In-Fact
GENERAL RE LIFE CORPORATION
By:

/S/ MARC D. HAMBURG

Name: Marc D. Hamburg
Title: Attorney-In-Fact

Follow Usg Corp (NYSE:USG)