SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13D
Under the Securities and Exchange Act of 1934

(Amendment No. 2)*

Builders FirstSource, Inc.
(Name of Issuer)
 
Common Stock, Par Value $0.01
(Title of Class of Securities)
 
12008R 10 7
(CUSIP Number)

Robert Robotti
c/o Robotti & Company, Incorporated
6 East 43rd Street, 23rd Floor
New York, New York 10017
212-986-4800
(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)

September 28, 2011
(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 Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box. o

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits.  See 13d-7 for other parties to whom copies are to be sent.
 
(Page 1 of 20 Pages)
 
*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 the disclosures provided in a prior cover page.

The information required in 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).
 
Schedule 13D
CUSIP No. 12008R 10 7
Page 2 of 20 Pages

1.
Names of Reporting Persons
 
Robert E. Robotti
 
2.
Check the Appropriate Box if a Member of a Group (See Instructions)
 
(a) o (b) x
  
 
3.
SEC Use Only
 
4.
Source of Funds (See Instructions)
 
AF, OO
 
 
5.
Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)
o
 
 
 
6.
Citizenship or Place of Organization
 
United States

Number of
7.
Sole Voting Power: 49,994
Shares
Beneficially
8.
Shared Voting Power: 4,175,923
Owned by
Each
9.
Sole Dispositive Power: 49,994
Reporting
Person With
10.
Shared Dispositive Power: 4,175,923

11.
Aggregate Amount Beneficially Owned by Each Reporting Person
 
4,225,917
 
12.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) o
 
13.
Percent of Class Represented by Amount in Row (11)
 
4.4%
 
14.
Type of Reporting Person (See Instructions)
 
IN, HC
Schedule 13D
CUSIP No. 12008R 10 7
Page 3 of 20 Pages

1.
Names of Reporting Persons
 
Robotti & Company, Incorporated
 
2.
Check the Appropriate Box if a Member of a Group (See Instructions)
 
(a) o (b) x
  
 
3.
SEC Use Only
 
4.
Source of Funds (See Instructions)
 
OO
 
 
5.
Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)
o
 
 
 
6.
Citizenship or Place of Organization
 
New York

Number of
7.
Sole Voting Power: -0-
Shares
Beneficially
8.
Shared Voting Power: 4,145,923
Owned by
Each
9.
Sole Dispositive Power: -0-
Reporting
Person With
10.
Shared Dispositive Power: 4,145,923

11.
Aggregate Amount Beneficially Owned by Each Reporting Person
 
 4,145,923
 
12.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) o
 
13.
Percent of Class Represented by Amount in Row (11)
 
 4.3%
 
14.
Type of Reporting Person (See Instructions)
 
 CO, HC
Schedule 13D
CUSIP No. 12008R 10 7
Page 4 of 20 Pages

1.
Names of Reporting Persons
 
Robotti & Company, LLC
 
2.
Check the Appropriate Box if a Member of a Group (See Instructions)
 
(a) o (b) x
  
 
3.
SEC Use Only
 
4.
Source of Funds (See Instructions)
 
OO
 
 
5.
Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)
o
 
 
 
6.
Citizenship or Place of Organization
 
New York

Number of
7.
Sole Voting Power: -0-
Shares
Beneficially
8.
Shared Voting Power: 57,850
Owned by
Each
9.
Sole Dispositive Power: -0-
Reporting
Person With
10.
Shared Dispositive Power: 57,850

11.
Aggregate Amount Beneficially Owned by Each Reporting Person
 
57,850
 
12.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) o
 
13.
Percent of Class Represented by Amount in Row (11)
 
Less than 1%
 
14.
Type of Reporting Person (See Instructions)
 
OO, BD
 
Schedule 13D
CUSIP No. 12008R 10 7
Page 5 of 20 Pages

1.
Names of Reporting Persons
 
Robotti & Company Advisors, LLC
 
2.
Check the Appropriate Box if a Member of a Group (See Instructions)
 
(a) o (b) x
  
   
3.
SEC Use Only
 
4.
Source of Funds (See Instructions)
 
OO
 
 
5.
Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)
o
 
 
 
6.
Citizenship or Place of Organization
 
New York

Number of
7.
Sole Voting Power: -0-
Shares
Beneficially
8.
Shared Voting Power: 4,072,723
Owned by
Each
9.
Sole Dispositive Power: -0-
Reporting
Person With
10.
Shared Dispositive Power: 4,072,723

11.
Aggregate Amount Beneficially Owned by Each Reporting Person
 
4,072,723
 
12.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) o
 
13.
Percent of Class Represented by Amount in Row (11)
 
 4.2%
 
14.
Type of Reporting Person (See Instructions)
 
OO, IA

Schedule 13D
CUSIP No. 12008R 10 7
Page 6 of 20 Pages

1.
Names of Reporting Persons
 
Suzanne Robotti
 
2.
Check the Appropriate Box if a Member of a Group (See Instructions)
 
(a) o (b) x
  
   
3.
SEC Use Only
 
4.
Source of Funds (See Instructions)
 
PF
 
 
5.
Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)
o
 
 
 
6.
Citizenship or Place of Organization
 
United States

Number of
7.
Sole Voting Power: 30,000
Shares
Beneficially
8.
Shared Voting Power: -0-
Owned by
Each
9.
Sole Dispositive Power: 30,000
Reporting
Person With
10.
Shared Dispositive Power: -0-

11.
Aggregate Amount Beneficially Owned by Each Reporting Person
 
30,000
 
12.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) o
 
13.
Percent of Class Represented by Amount in Row (11)
 
Less than 1%
  
14.
Type of Reporting Person (See Instructions)
 
IN
Schedule 13D
CUSIP No. 12008R 10 7
Page 7 of 20 Pages

1.
Names of Reporting Persons
 
Kenneth R. Wasiak
 
2.
Check the Appropriate Box if a Member of a Group (See Instructions)
 
(a) o (b) x
  
 
3.
SEC Use Only
 
4.
Source of Funds (See Instructions)
 
AF
 
 
5.
Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)
o
 
 
 
6.
Citizenship or Place of Organization
 
United States

Number of
7.
Sole Voting Power: -0-
Shares
Beneficially
8.
Shared Voting Power: 1,283,465
Owned by
Each
9.
Sole Dispositive Power: -0-
Reporting
Person With
10.
Shared Dispositive Power: 1,283,465

11.
Aggregate Amount Beneficially Owned by Each Reporting Person
 
1,283,465
 
12.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) o
 
13.
Percent of Class Represented by Amount in Row (11)
 
1.3%
 
14.
Type of Reporting Person (See Instructions)
 
IN, HC
Schedule 13D
CUSIP No. 12008R 10 7
Page 8 of 20 Pages

1.
Names of Reporting Persons
 
Ravenswood Management Company, L.L.C.
 
2.
Check the Appropriate Box if a Member of a Group (See Instructions)
 
(a) o (b) x
  
 
3.
SEC Use Only
 
4.
Source of Funds (See Instructions)
 
AF
 
 
5.
Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)
o
 
 
 
6.
Citizenship or Place of Organization
 
New York

Number of
7.
Sole Voting Power: -0-
Shares
Beneficially
8.
Shared Voting Power: 1,283,465
Owned by
Each
9.
Sole Dispositive Power: -0-
Reporting
Person With
10.
Shared Dispositive Power: 1,283,465

11.
Aggregate Amount Beneficially Owned by Each Reporting Person
 
1,283,465
 
12.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) o
 
13.
Percent of Class Represented by Amount in Row (11)
 
1.3%
 
14.
Type of Reporting Person (See Instructions)
 
OO
Schedule 13D
CUSIP No. 12008R 10 7
Page 9 of 20 Pages

1.
Names of Reporting Persons
 
The Ravenswood Investment Company, L.P.
 
2.
Check the Appropriate Box if a Member of a Group (See Instructions)
 
(a) o (b) x
  
 
3.
SEC Use Only
 
4.
Source of Funds (See Instructions)
 
WC
 
 
5.
Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)
o
 
 
 
6.
Citizenship or Place of Organization
 
Delaware 

Number of
7.
Sole Voting Power: -0-
Shares
Beneficially
8.
Shared Voting Power: 859,499
Owned by
Each
9.
Sole Dispositive Power: -0-
Reporting
Person With
10.
Shared Dispositive Power: 859,499

11.
Aggregate Amount Beneficially Owned by Each Reporting Person
 
859,499
 
12.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) o
 
13.
Percent of Class Represented by Amount in Row (11)
 
Less than 1%
 
14.
Type of Reporting Person (See Instructions)
 
PN
Schedule 13D
CUSIP No. 12008R 10 7
Page 10 of 20 Pages

1.
Names of Reporting Persons
 
Ravenswood Investments III, L.P.
 
2.
Check the Appropriate Box if a Member of a Group (See Instructions)
 
(a) o (b) x
  
 
3.
SEC Use Only
 
4.
Source of Funds (See Instructions)
 
WC
 
 
5.
Check if Disclosure of Legal Proceedings Is Required Pursuant to Items 2(d) or 2(e)
o
 
 
 
6.
Citizenship or Place of Organization
 
New York 

Number of
7.
Sole Voting Power: -0-
Shares
Beneficially
8.
Shared Voting Power: 423,966
Owned by
Each
9.
Sole Dispositive Power: -0-
Reporting
Person With
10.
Shared Dispositive Power: 423,966

11.
Aggregate Amount Beneficially Owned by Each Reporting Person
 
423,966
 
12.
Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) o
 
13.
Percent of Class Represented by Amount in Row (11)
 
Less than 1%
 
14.
Type of Reporting Person (See Instructions)
 
PN

Schedule 13D
CUSIP No. 12008R 10 7
Page 11 of 20 Pages
 
                 This Statement on Schedule 13D Amendment No. 2 (this "Statement") is filed on behalf of the Reporting Persons with the Securities and Exchange Commission (the "Commission").  This Statement amends the Statement of Beneficial Ownership on Schedule 13D relating to shares of the Common Stock, par value $0.01 per share (the "Common Stock"), of Builders FirstSource, Inc. (the "Issuer"), filed on February 9, 2010 with the Commission as amended by Amendment No. 1 thereto filed on January 31, 2011 (the "Amended Statement"), as specifically set forth herein.  Capitalized terms used herein and not otherwise defined herein shall have the same meanings ascribed to them in the Initial Statement.

Item 2. Identity and Background.

Item 2 of the Amended Statement is hereby amended and restated to read as follows:
 
(a), (b), (c) and (f).  This Statement is filed on behalf of Robert E. Robotti ("Robotti"), Robotti & Company, Incorporated ("ROBT"), Robotti & Company, LLC ("Robotti & Company"), Robotti & Company Advisors, LLC ("Robotti Advisors"), Suzanne Robotti, Kenneth R. Wasiak ("Wasiak"), Ravenswood Management Company, L.L.C. ("RMC"), The Ravenswood Investment Company, L.P. ("RIC"), and Ravenswood Investments III, L.P. ("RI," and together with Robotti, ROBT, Robotti & Company, Robotti Advisors, Suzanne Robotti, Wasiak, RMC and RIC, the "Reporting Persons").
 
Mr. Robotti is a United States citizen whose principal occupation is serving as the president and treasurer of ROBT.  ROBT, a New York corporation, is the parent holding company of Robotti & Company and Robotti Advisors.  Robotti & Company, a New York limited liability company, is a broker-dealer registered under Section 15 of the Securities Exchange Act of 1934, as amended ("Exchange Act").  Robotti Advisors, a New York limited liability company, is an investment advisor registered under the Investment Advisers Act of 1940, as amended.
 
Suzanne Robotti is a United States citizen and the wife of Mr. Robotti.
 
Mr. Wasiak is a United States citizen whose principal occupation is serving as a consultant in the accounting firm of Grassi & Co.  Each of Messrs. Robotti and Wasiak are Managing Member of RMC.  RMC, a New York limited liability company, is the general partner of RIC and RI.  RIC, a Delaware limited partnership, and RI, a New York limited partnership, are private investment partnerships engaged in the purchase and sale of securities for their own accounts.
 
The address of each of the Reporting Persons other than Mr. Wasiak, RMC, RIC, and RI is 6 East 43rd Street, 23rd Floor, New York, NY, 10017.  RMC's, RIC's, and RI's address is 104 Gloucester Road, Massapequa, New York 11758.  Mr. Wasiak's business address is 488 Madison Avenue, New York, New York 10022.
 
Executive Officers and Directors:
 
In accordance with the provisions of General Instruction C to Schedule 13D information concerning executive officers and directors of ROBT, Robotti & Company, and Robotti Advisors included in Schedule A hereto and is incorporated by reference herein.

(d) and (e).  None of the Reporting Persons, and to the best knowledge of the Reporting Persons, none of the persons set forth on Schedule A, has during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction, and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.


Schedule 13D
CUSIP No. 12008R 10 7
Page 12 of 20 Pages
 
Item 3. Source and Amount of Funds or Other Consideration.
 
Item 3 of the Amended Statement is hereby amended and restated to read as follows:
 
The aggregate purchase price of the 15,350 shares of Common Stock held by ROBT is $51,698.47 (including brokerage fees and expenses). All of the shares of Common Stock beneficially held by ROBT were paid for using its working capital.
 
The aggregate purchase price of the 57,850 shares of Common Stock held by Robotti & Company is $161,994.31 (including brokerage fees and expenses).  All of the shares of Common Stock beneficially held by Robotti & Company were paid for using the personal funds of its discretionary customers.
 
The aggregate purchase price of the 2,789,258 shares of Common Stock held by Robotti Advisors is $8,485,237.66 (including brokerage fees and expenses).  All of the shares of Common Stock beneficially held by Robotti Advisors were paid for using the personal funds of its advisory clients.
 
The aggregate purchase price of the 30,000 shares of Common Stock held by Suzanne Robotti is $101,273.00 (including brokerage fees and expenses).  All of the shares of Common Stock beneficially held by Suzanne Robotti were paid for using her personal funds.
 
The aggregate purchase price of the 909,493 shares of Common Stock previously held by RIC is $3,166,159.08 (including brokerage fees and expenses).  All of these shares of Common Stock were paid for using RIC's working capital.  On January 2, 2013, 49,994 shares of the 909,493 shares of Common Stock previously held by RIC were distributed from RIC to Robert Robotti.
 
The aggregate purchase price of the 423,966 shares of Common Stock held by RI is $1,440,546.54 (including brokerage fees and expenses).  All of the shares of Common Stock beneficially held by RI were paid for using its working capital.

Item 5. Interest in Securities of the Issuer.

Item 5 of the Amended Statement is hereby amended and restated to read as follows:
 
(a)-(b) As of August 20, 2013, the aggregate number of shares of Common Stock and percentage of the outstanding Common Stock of the Issuer beneficially owned (i) by each of the Reporting Persons, and (ii) to the knowledge of the Reporting Persons, by each other person who may be deemed to be a member of a group, is as follows:
 
Reporting Person

Aggregate Number of Shares of Common Stock
Number of Shares of Common Stock: Sole Power to Vote or Dispose
Number of Shares of Common Stock: Shared Power to Vote or Dispose

Approximate Percentage*
 
 
 
 
 
Reporting Person
  
 
Aggregate Number of Shares of Common Stock
    
Number of Shares of Common Stock: Sole Power to Vote or Dispose
    
Number of Shares of Common Stock: Shared Power to Vote or Dispose
    
 
 
 
Approximate Percentage*
  
                         
 
Robotti (1)(2)(3)(4)(6)(7)(8)
    
4,225,917
      
49,994
      
4,175,923
      
4.35
%
ROBT (1)(2)(3)(4)
    
4,145,923
      
0
      
4,145,923
      
4.27
%
Robotti & Company (1)(3)
    
57,850
      
0
      
57,850
        
**
Robotti Advisors(1)(4)(7)(8)
    
4,072,723
      
0
      
4,072,723
      
4.19
%
 
 
SCHEDULE 13D
CUSIP No. 12008R 10 7
 
Page 13 of 20 Pages

Suzanne Robotti(1)(5)(6)
    
30,000
      
30,000
      
0
        
**
Wasiak (1)(7)(8)
    
1,283,465
      
0
      
1,283,465
      
1.32
%
RMC (1)(7)(8)
    
1,283,465
      
0
      
1,283,465
      
1.32
%
RIC (1)(7)
    
859,499
      
0
      
859,499
        
**
RI (1)(8)
    
423,966
      
0
      
423,966
        
**

*Based on 97,193,947 shares of Common Stock, par value $0.01 per share outstanding as of July 31, 2013 as disclosed in the Issuer's Quarterly Report on Form 10-Q, for period ended June 30, 2013.
**Less than one percent.

(1) Each of the Reporting Persons disclaims beneficial ownership of the securities held by the other Reporting Persons except to the extent of such Reporting Person's pecuniary interest therein, if any.
(2) Mr. Robotti shares with ROBT the power to vote or direct the vote of, and shares the power to dispose or direct the disposition of, 15,350 shares of the Common Stock owned by ROBT.
(3) Each of Mr. Robotti and ROBT share with Robotti & Company the power to vote or direct the vote of, and shares the power to dispose or direct the disposition of, 57,850 shares of Common Stock owned by the discretionary customers of Robotti & Company.
(4) Each of Mr. Robotti and ROBT share with Robotti Advisors the power to vote or direct the vote of, and shares the power to dispose or direct the disposition of, 4,072,723 shares of Common Stock owned by the advisory clients of Robotti Advisors.
(5) Suzanne Robotti has the sole power to vote or direct the vote of, and has the sole power to dispose or direct the disposition of, 30,000 shares of Common Stock.
(6) Mr. Robotti may be deemed to be the beneficial owner of the shares of Common Stock set forth in footnote (5) above, through his marriage to Suzanne Robotti.
(7) Each of Messrs. Robotti and Wasiak, Robotti Advisors and RMC share with RIC the power to vote or direct the vote of, and shares the power to dispose or direct the disposition of, 859,499 shares of Common Stock owned by RIC.
(8) Each of Messrs. Robotti and Wasiak, Robotti Advisors and RMC share with RI the power to vote or direct the vote of, and shares the power to dispose or direct the disposition of, 423,966 shares of Common Stock owned by RI.

(c) Except as otherwise set forth in this Statement, the table below lists all the transactions in the Issuer's Common Stock from July 30, 2011, sixty days prior to the event.  All such transactions were made by Robotti & Company, Robotti Advisors, RIC and RI in the open market.

Transactions in Shares Since July 30, 2011
 
Party
Date of
Purchase/
Sale
  
Number of Common
Stock
  
Buy/Sell
 
  
Price Per Unit
  
Robotti Advisors' Advisory Clients
08/11/2011
    
46,684
  
BUY
  
$
1.7211
  
Robotti Advisors' Advisory Clients
08/11/2011
    
115,145
  
BUY
  
$
1.7142
  
Robotti Advisors' Advisory Clients
08/12/2011
    
31,998
  
BUY
  
$
1.7168
  
Robotti Advisors' Advisory Clients
08/12/2011
    
90,583
  
BUY
  
$
1.7145
  
Robotti Advisors' Advisory Clients
08/15/2011
    
78
  
BUY
  
$
1.75
  
Robotti Advisors' Advisory Clients
08/15/2011
    
122
  
BUY
  
$
1.75
  
Robotti Advisors' Advisory Clients
08/18/2011
    
18,032
  
BUY
  
$
1.7454
  
Robotti Advisors' Advisory Clients
08/18/2011
    
24,500
  
BUY
  
$
1.7470
  
Robotti Advisors' Advisory Clients
08/19/2011
    
6,755
  
BUY
  
$
1.7432
  
Robotti Advisors' Advisory Clients
08/19/2011
    
16,500
  
BUY
  
$
1.7426
  
Robotti Advisors' Advisory Clients
08/22/2011
    
2,400
  
BUY
  
$
1.7498
  

SCHEDULE 13D
CUSIP No. 12008R 10 7
 
Page 14 of 20 Pages

Robotti Advisors' Advisory Clients
08/22/2011
    
7,322
  
BUY
  
$
1.7498
  
Robotti Advisors' Advisory Clients
08/23/2011
    
1,002
  
BUY
  
$
1.75
  
Robotti Advisors' Advisory Clients
09/01/2011
    
918
  
BUY
  
$
1.75
  
Robotti Advisors' Advisory Clients
09/02/2011
    
15,374
  
BUY
  
$
1.7158
  
Robotti Advisors' Advisory Clients
09/02/2011
    
22,908
  
BUY
  
$
1.7439
  
Robotti Advisors' Advisory Clients
09/06/2011
    
18,815
  
BUY
  
$
1.7061
  
Robotti Advisors' Advisory Clients
09/08/2011
    
15,650
  
BUY
  
$
1.7191
  
Robotti Advisors' Advisory Clients
09/09/2011
    
50,636
  
BUY
  
$
1.6978
  
Robotti Advisors' Advisory Clients
09/12/2011
    
29,448
  
BUY
  
$
1.6949
  
Robotti Advisors' Advisory Clients
09/13/2011
    
27,442
  
BUY
  
$
1.7023
  
Robotti Advisors' Advisory Clients
09/14/2011
    
57,044
  
BUY
  
$
1.6525
  
Robotti Advisors' Advisory Clients
09/15/2011
    
15,523
  
BUY
  
$
1.7432
  
Robotti Advisors' Advisory Clients
09/16/2011
    
34,036
  
BUY
  
$
1.7144
  
Robotti & Company's Discretionary Customers
09/16/2011
    
(800
)
SELL
  
$
1.7106
  
Robotti Advisors' Advisory Clients
09/19/2011
    
55,969
  
BUY
  
$
1.6387
  
Robotti Advisors' Advisory Clients
09/20/2011
    
81,146
  
BUY
  
$
1.6199
  
Robotti Advisors' Advisory Clients
09/21/2011
    
35,494
  
BUY
  
$
1.5578
  
Robotti Advisors' Advisory Clients
09/22/2011
    
58,173
  
BUY
  
$
1.4451
  
Robotti Advisors' Advisory Clients
09/23/2011
    
33,430
  
BUY
  
$
1.493
  
Robotti Advisors' Advisory Clients
09/26/2011
    
23,770
  
BUY
  
$
1.493
  
Robotti Advisors' Advisory Clients
09/27/2011
    
17,987
  
BUY
  
$
1.493
  
Robotti Advisors' Advisory Clients
09/28/2011
    
24,212
  
BUY
  
$
1.4721
  
Robotti Advisors' Advisory Clients
09/29/2011
    
50,178
  
BUY
  
$
1.3533
  
Robotti Advisors' Advisory Clients
10/12/2011
    
24,000
  
BUY
  
$
1.3922
  
Robotti Advisors' Advisory Clients
10/17/2011
    
10,150
  
BUY
  
$
1.3652
  
Robotti Advisors' Advisory Clients
10/25/2011
    
1,100
  
BUY
  
$
1.55
  
Robotti Advisors' Advisory Clients
10/26/2011
    
3,275
  
BUY
  
$
1.5639
  
Robotti Advisors' Advisory Clients
11/01/2011
    
(3,100
)
SELL
  
$
1.5032
  
Robotti Advisors' Advisory Clients
11/01/2011
    
(1,406
)
SELL
  
$
1.5003
  
Robotti Advisors' Advisory Clients
11/04/2011
    
5,100
  
BUY
  
$
1.472
  
RIC
11/04/2011
    
(2,139
)
SELL
  
$
1.50
  
RII
11/04/2011
    
(1,205
)
SELL
  
$
1.50
  
RIC
11/04/2011
    
(396
)
SELL
  
$
1.4999
  
Robotti Advisors' Advisory Clients
11/07/2011
    
4,200
  
BUY
  
$
1.3986
  
RIC
11/07/2011
    
(3,288
)
SELL
  
$
1.50
  
RII
11/07/2011
    
(1,853
)
SELL
  
$
1.50
  
Robotti & Company's Discretionary Customers
11/08/2011
    
12,000
  
BUY
  
$
1.4591
  
Robotti Advisors' Advisory Clients
11/08/2011
    
900
  
BUY
  
$
1.40
  
RII
11/08/2011
    
(800
)
SELL
  
$
1.40
  
Robotti & Company's Discretionary Customers
11/09/2011
    
7,868
  
BUY
  
$
1.40
  
Robotti & Company's Discretionary Customers
11/10/2011
    
2,732
  
BUY
  
$
1.40
  
RIC
11/14/2011
    
(500
)
SELL
  
$
1.50
  
RII
11/15/2011
    
(6,755
)
SELL
  
$
1.50
  
RIC
11/15/2011
    
(3,807
)
SELL
  
$
1.50
  
RII
11/16/2011
    
(5,751
)
SELL
  
$
1.50
  
RIC
11/16/2011
    
(3,241
)
SELL
  
$
1.50
  
RII
11/17/2011
    
(8,255
)
SELL
  
$
1.50
  
RIC
11/17/2011
    
(4,653
)
SELL
  
$
1.50
  
RII
11/18/2011
    
(3,463
)
SELL
  
$
1.50
  
SCHEDULE 13D
CUSIP No. 12008R 10 7
 
Page 15 of 20 Pages

RIC
11/18/2011
    
(1,952
)
SELL
  
$
1.50
  
RII
11/21/2011
    
(2,032
)
SELL
  
$
1.50
  
RIC
11/21/2011
    
(1,145
)
SELL
  
$
1.50
  
RII
11/22/2011
    
(16,568
)
SELL
  
$
1.5008
  
RIC
11/22/2011
    
(9,338
)
SELL
  
$
1.5008
  
RII
11/29/2011
    
(40,150
)
SELL
  
$
1.5007
  
RIC
11/29/2011
    
(22,630
)
SELL
  
$
1.5007
  
RII
11/30/2011
    
(66,174
)
SELL
  
$
1.5263
  
RIC
11/30/2011
    
(37,299
)
SELL
  
$
1.5263
  
RII
12/01/2011
    
(42,462
)
SELL
  
$
1.5412
  
RIC
12/01/2011
    
(23,933
)
SELL
  
$
1.5412
  
RII
12/02/2011
    
(75,567
)
SELL
  
$
1.5748
  
RIC
12/02/2011
    
(44,644
)
SELL
  
$
1.5748
  
Robotti Advisors' Advisory Clients
12/12/2011
    
1,650
  
BUY
  
$
1.9100
  
Robotti Advisors' Advisory Clients
12/13/2011
    
(1,208
)
SELL
  
$
1.9313
  
Robotti Advisors' Advisory Clients
12/14/2011
    
1,000
  
BUY
  
$
1.8000
  
Robotti Advisors' Advisory Clients
12/20/2011
    
(20,861
)
SELL
  
$
1.8566
  
Robotti Advisors' Advisory Clients
01/12/2012
    
(2,000
)
SELL
  
$
2.4000
  
Robotti Advisors' Advisory Clients
01/13/2012
    
(1,000
)
SELL
  
$
2.4000
  
Robotti Advisors' Advisory Clients
01/17/2012
    
(3,000
)
SELL
  
$
2.4002
  
Robotti Advisors' Advisory Clients
02/01/2012
    
(1,900
)
SELL
  
$
2.5805
  
Robotti Advisors' Advisory Clients
02/08/2012
    
1,000
  
BUY
  
$
3.0492
  
Robotti Advisors' Advisory Clients
02/08/2012
    
1,100
  
BUY
  
$
3.0492
  
Robotti Advisors' Advisory Clients
02/08/2012
    
(2,500
)
SELL
  
$
3.1543
  
Robotti Advisors' Advisory Clients
02/09/2012
    
3,900
  
BUY
  
$
3.0941
  
Robotti Advisors' Advisory Clients
02/17/2012
    
(53,591
)
SELL
  
$
3.0477
  
Robotti Advisors' Advisory Clients
02/21/2012
    
(2,804
)
SELL
  
$
3.0076
  
Robotti Advisors' Advisory Clients
02/22/2012
    
4,000
  
BUY
  
$
2.7475
  
Robotti Advisors' Advisory Clients
02/22/2012
    
1,150
  
BUY
  
$
2.7500
  
Robotti Advisors' Advisory Clients
02/23/2012
    
(6,077
)
SELL
  
$
2.9272
  
Robotti Advisors' Advisory Clients
02/28/2012
    
(300
)
SELL
  
$
3.0900
  
Robotti & Company's Discretionary Customers
02/29/2012
    
(2,500
)
SELL
  
$
3.0916
  
Robotti Advisors' Advisory Clients
02/29/2012
    
2,500
  
BUY
  
$
3.0720
  
Robotti Advisors' Advisory Clients
03/02/2012
    
(2,875
)
SELL
  
$
3.1265
  
Robotti Advisors' Advisory Clients
03/05/2012
    
(625
)
SELL
  
$
3.1500
  
Robotti Advisors' Advisory Clients
03/15/2012
    
(2,086
)
SELL
  
$
3.9400
  
Robotti Advisors' Advisory Clients
03/30/2012
    
1,000
  
BUY
  
$
4.2900
  
Robotti Advisors' Advisory Clients
04/03/2012
    
1,150
  
BUY
  
$
4.0000
  
Robotti Advisors' Advisory Clients
04/05/2012
    
575
  
BUY
  
$
3.8980
  
Robotti Advisors' Advisory Clients
04/10/2012
    
575
  
BUY
  
$
3.7000
  
Robotti Advisors' Advisory Clients
04/10/2012
    
1,000
  
BUY
  
$
3.7000
  
Robotti Advisors' Advisory Clients
04/17/2012
    
(5,880
)
SELL
  
$
3.9368
  
Robotti Advisors' Advisory Clients
04/18/2012
    
675
  
BUY
  
$
3.8300
  
Robotti Advisors' Advisory Clients
04/18/2012
    
(18,800
)
SELL
  
$
3.8445
  
Robotti Advisors' Advisory Clients
04/23/2012
    
2,125
  
BUY
  
$
3.4698
  
Robotti Advisors' Advisory Clients
05/15/2012
    
(131,706
)
SELL
  
$
4.3502
  
Robotti Advisors' Advisory Clients
05/15/2012
    
(191,793
)
SELL
  
$
4.3501
  
Robotti Advisors' Advisory Clients
05/16/2012
    
(300
)
BUY
  
$
4.3500
  
Robotti Advisors' Advisory Clients
05/16/2012
    
(1,257
)
SELL
  
$
4.3500
  
Robotti Advisors' Advisory Clients
05/23/2012
    
(1,458
)
SELL
  
$
3.8000
  
Robotti Advisors' Advisory Clients
06/04/2012
    
4,650
  
BUY
  
$
3.5394
  

SCHEDULE 13D
CUSIP No. 12008R 10 7
 
Page 16 of 20 Pages

Robotti Advisors' Advisory Clients
06/04/2012
    
1,000
  
BUY
  
$
3.5500
  
Robotti Advisors' Advisory Clients
06/06/2012
    
(13,950
)
SELL
  
$
3.5559
  
Robotti Advisors' Advisory Clients
06/07/2012
    
9,742
  
BUY
  
$
3.7058
  
Robotti Advisors' Advisory Clients
06/08/2012
    
900
  
BUY
  
$
4.0000
  
Robotti Advisors' Advisory Clients
06/11/2012
    
1,200
  
BUY
  
$
3.9500
  
Robotti Advisors' Advisory Clients
06/12/2012
    
415
  
BUY
  
$
3.9500
  
Robotti Advisors' Advisory Clients
06/13/2012
    
385
  
BUY
  
$
3.9500
  
Robotti Advisors' Advisory Clients
06/14/2012
    
(9,742
)
SELL
  
$
4.0801
  
Robotti Advisors' Advisory Clients
06/15/2012
    
2,000
  
BUY
  
$
4.0400
  
Robotti Advisors' Advisory Clients
06/19/2012
    
(5,613
)
SELL
  
$
4.5000
  
Robotti Advisors' Advisory Clients
06/19/2012
    
(22,313
)
SELL
  
$
4.4888
  
Robotti Advisors' Advisory Clients
06/21/2012
    
8,000
  
BUY
  
$
3.9738
  
Robotti Advisors' Advisory Clients
06/27/2012
    
(63,738
)
SELL
  
$
4.5054
  
Robotti Advisors' Advisory Clients
06/27/2012
    
(5,137
)
SELL
  
$
4.4983
  
Robotti Advisors' Advisory Clients
06/28/2012
    
(78,813
)
SELL
  
$
4.5775
  
Robotti Advisors' Advisory Clients
06/29/2012
    
(220,070
)
SELL
  
$
4.7997
  
Robotti Advisors' Advisory Clients
07/02/2012
    
(123,260
)
SELL
  
$
4.9267
  
Robotti Advisors' Advisory Clients
07/06/2012
    
(1,450
)
SELL
  
$
5.3000
  
Robotti Advisors' Advisory Clients
07/26/2012
    
(2,142
)
SELL
  
$
3.7000
  
Robotti Advisors' Advisory Clients
08/09/2012
    
200
  
BUY
  
$
3.7000
  
Robotti Advisors' Advisory Clients
8/30/2012
    
500
  
BUY
  
$
4.4000
  
Robotti Advisors' Advisory Clients
9/12/2012
    
(1,550
)
SELL
  
$
4.8229
  
Robotti Advisors' Advisory Clients
9/17/2012
    
(1,000
)
SELL
  
$
5.2601
  
Robotti Advisors' Advisory Clients
9/27/2012
    
(1,400
)
SELL
  
$
5.1601
  
Robotti Advisors' Advisory Clients
10/10/2012
    
(21,318
)
SELL
  
$
4.6651
  
Robotti Advisors' Advisory Clients
10/11/2012
    
9,000
  
BUY
  
$
4.6457
  
Robotti Advisors' Advisory Clients
11/9/2012
    
1,750
  
BUY
  
$
5.1650
  
Robotti Advisors' Advisory Clients
11/13/2012
    
(1,000
)
SELL
  
$
5.0700
  
Robotti Advisors' Advisory Clients
11/14/2012
    
200
  
BUY
  
$
4.8500
  
Robotti Advisors' Advisory Clients
11/15/2012
    
1,650
  
BUY
  
$
4.3500
  
Robotti Advisors' Advisory Clients
11/30/2012
    
1,000
  
BUY
  
$
5.2199
  
Robotti Advisors' Advisory Clients
12/3/2012
    
(13,700
)
SELL
  
$
5.2353
  
Robotti Advisors' Advisory Clients
12/11/2012
    
(1,000
)
SELL
  
$
5.2200
  
Robotti Advisors' Advisory Clients
12/12/2012
    
(16,241
)
SELL
  
$
5.1615
  
Robotti Advisors' Advisory Clients
12/27/2012
    
450
  
BUY
  
$
5.1500
  
Robotti Advisors' Advisory Clients
01/02/2013
    
(433
)
SELL
  
$
5.8300
  
Robotti Advisors' Advisory Clients
01/04/2013
    
(3,540
)
SELL
  
$
6.0729
  
Robotti Advisors' Advisory Clients
02/04/2013
    
2,900
  
BUY
  
$
6.0897
  
Robotti Advisors' Advisory Clients
02/04/2013
    
(3,050
)
SELL
  
$
6.0400
  
Robotti Advisors' Advisory Clients
02/22/2013
    
2,275
  
BUY
  
$
5.2496
  
Robotti Advisors' Advisory Clients
03/08/2013
    
(483
)
SELL
  
$
6.0600
  
Robotti Advisors' Advisory Clients
03/14/2013
    
(852
)
SELL
  
$
6.0900
  
Robotti Advisors' Advisory Clients
04/08/2013
    
2,625
  
BUY
  
$
5.5386
  
Robotti Advisors' Advisory Clients
05/08/2013
    
(12,634
)
SELL
  
$
6.5088
  
Robotti Advisors' Advisory Clients
05/14/2013
    
(79,664
)
SELL
  
$
7.1101
  
Robotti Advisors' Advisory Clients
05/14/2013
    
(32,800
)
SELL
  
$
7.1131
  
Robotti Advisors' Advisory Clients
05/15/2013
    
(94,494
)
SELL
  
$
7.0065
  
Robotti Advisors' Advisory Clients
05/15/2013
    
(59,450
)
SELL
  
$
7.0115
  
Robotti Advisors' Advisory Clients
05/16/2013
    
(15,650
)
SELL
  
$
7.0033
  
Robotti Advisors' Advisory Clients
05/16/2013
    
(12,500
)
SELL
  
$
7.0050
  
Robotti Advisors' Advisory Clients
05/17/2013
    
(11,800
)
SELL
  
$
7.0007
  
Robotti Advisors' Advisory Clients
05/17/2013
    
(14,049
)
SELL
  
$
7.0019
  

SCHEDULE 13D
CUSIP No. 12008R 10 7
 
Page 17 of 20 Pages

Robotti Advisors' Advisory Clients
05/20/2013
    
(100
)
SELL
  
$
7.0000
  
Robotti Advisors' Advisory Clients
05/20/2013
    
(500
)
SELL
  
$
7.0000
  
Robotti Advisors' Advisory Clients
05/21/2013
    
(9,360
)
SELL
  
$
7.0001
  
Robotti Advisors' Advisory Clients
05/21/2013
    
(7,660
)
SELL
  
$
7.0000
  
Robotti Advisors' Advisory Clients
05/22/2013
    
(27,132
)
SELL
  
$
7.0092
  
Robotti Advisors' Advisory Clients
05/22/2013
    
(19,929
)
SELL
  
$
7.0100
  
Robotti Advisors' Advisory Clients
05/28/2013
    
(31,918
)
SELL
  
$
7.0022
  
Robotti Advisors' Advisory Clients
05/28/2013
    
(30,177
)
SELL
  
$
7.0069
  
Robotti Advisors' Advisory Clients
05/29/2013
    
(1,300
)
SELL
  
$
7.0000
  
Robotti Advisors' Advisory Clients
05/29/2013
    
(4,700
)
SELL
  
$
7.0000
  
Robotti Advisors' Advisory Clients
06/13/2013
    
1,300
  
BUY
  
$
6.3550
  
Robotti Advisors' Advisory Clients
06/18/2013
    
(47,941
)
SELL
  
$
7.0008
  
Robotti Advisors' Advisory Clients
06/18/2013
    
(29,615
)
SELL
  
$
7.0020
  
Robotti Advisors' Advisory Clients
06/19/2013
    
(200
)
SELL
  
$
7.0000
  
Robotti Advisors' Advisory Clients
06/19/2013
    
(1,161
)
SELL
  
$
7.0000
  
Robotti Advisors' Advisory Clients
06/20/2013
    
300
  
BUY
  
$
6.1880
  
Robotti Advisors' Advisory Clients
07/18/2013
    
(2,100
)
SELL
  
$
6.7214
  
Robotti Advisors' Advisory Clients
08/15/2013
    
2,925
  
BUY
  
$
5.2261
  

*In addition to the transactions listed above, during the period one or more accounts, which held a total of 33,177 of Common Stock, ceased being either a discretionary customer of Robotti & Company or an advisory client of Robotti Advisors.

(d) Robotti & Company's discretionary customers and Robotti Advisors' clients have the right to receive and the power to direct the receipt of dividends from, and the proceeds from the sale of, Common Stock owned by them.  Except as set forth in the immediately preceding sentence, no Person other than the Reporting Persons is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such Common Stock beneficially owned by the Reporting Persons.

(e) As of July 2, 2012, the Reporting Persons ceased to be the beneficial owner of more than 5% of the Issuer's Common Stock.

Item 7. Materials To Be Filed As Exhibits

  The following documents are filed herewith or have been previously filed:

1.          Joint Filing Agreement dated as of February 9, 2010 by and among Robert E. Robotti, Robotti & Company, Incorporated, Robotti & Company, LLC, Robotti & Company Advisors, LLC, Suzanne Robotti, Kenneth R. Wasiak, Ravenswood Management Company, L.L.C., The Ravenswood Investment Company, L.P., and Ravenswood Investments III, L.P.

2.          Power of Attorney, dated June 26, 2013, executed by Robert E. Robotti.

3.          Power of Attorney dated July 2, 2013, executed by Suzanne Robotti.

4.          Power of Attorney dated July 8, 2013, executed by Kenneth R. Wasiak

SCHEDULE 13D
CUSIP No. 12008R 10 7
 
Page 18 of 20 Pages

SIGNATURE

After reasonable inquiry and to the best of the undersigned's knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.
 
Date:
August 23, 2013
 
 
 
 
Robotti & Company, Incorporated
 
 
 
 
 
/s/ Stephen Hart*
By:
/s/ Stephen Hart*
 
Robert E. Robotti
 
Name: Robert E. Robotti
 
 
 
Title: President and Treasurer
 
 
 
 
Robotti & Company, LLC
Robotti & Company Advisors, LLC
 
 
 
 
By:
/s/ Stephen Hart*
By:
/s/ Stephen Hart*
 
Name: Robert E. Robotti
 
Name: Robert E. Robotti
 
Title: President and Treasurer
 
Title: President and Treasurer
 
 
 
 
 
/s/ Stephen Hart*
 
/s/ Stephen Hart*
 
Suzanne Robotti
 
Kenneth R. Wasiak
 
 
 
 
Ravenswood Management Company, L.L.C.
   Ravenswood Investment Company, L.P.
 
 
 
 
By:
/s/ Stephen Hart*
By:
Ravenswood Management Company, L.L.C.
 
Name: Robert E. Robotti
Its General Partner
 
Title: Managing Member
 
By:
/s/ Stephen Hart*
Ravenswood Investments III, L.P.
Name: Robert E. Robotti
 
Title: Managing Member
By:
Ravenswood Management Company, L.L.C.
 
Its General Partner
 
By:
/s/ Stephen Hart*
 
Name: Robert E. Robotti
 
Title: Managing Member
 
* As attorney-in-fact for Robert E. Robotti.  Signed pursuant to Power of Attorney, dated as of June 26, 2013, granted by Mr. Robert E. Robotti included as Exhibit 2 hereto.

* As attorney-in-fact for Suzanne Robotti.  Signed pursuant to Power of Attorney, dated as of July 2, 2013, granted by Mrs. Suzanne Robotti included as Exhibit 3 hereto.

* As attorney-in-fact for Kenneth R. Wasiak.  Signed pursuant to Power of Attorney, dated as of July 8, 2013, granted by Mr. Kenneth R. Robotti included as Exhibit 4 hereto.

SCHEDULE 13D
CUSIP No. 12008R 10 7
 
Page 19 of 20 Pages

Schedule A

The following table sets forth certain information concerning each of the directors and executive officers of the corporations named below as of the date hereof.

Robotti & Company, Incorporated, Robotti & Company, LLC, and Robotti & Company Advisors, LLC

Name:
 
Robert E. Robotti
 
 
(Director, President, Treasurer)
Citizenship
 
U.S.A.
Principal Occupation:
 
President and Treasurer, Robotti & Company, Incorporated
Business Address:
 
6 East 43rd Street, 23rd Floor, New York, New York 10017
 
 
 
Name:
 
Nancy Seklir
 
 
(Director)
Citizenship:
 
U.S.A.
Principal Occupation:
 
Retired
Business Address:
 
c/o Robotti & Company, Incorporated
 
 
6 East 43rd Street, 23rd Floor, New York, New York 10017
 
 
 
Name:
 
Kenneth R. Wasiak
 
 
(Director)
Citizenship
 
U.S.A.
Principal Occupation:
 
Consultant, Grassi & Co.
Business Address:
 
488 Madison Avenue, New York, New York 10022
 
 
 
Name:
 
Erwin Mevorah
 
 
(Vice President, Secretary)
Citizenship:
 
U.S.A.
Principal Occupation:
 
Vice President and Secretary, Robotti & Company, Incorporated
Business Address:
 
6 East 43rd Street, New York, NY 10017

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SCHEDULE 13D
CUSIP No. 12008R 10 7
 
Page 20 of 20 Pages

Exhibit Index

The following documents are filed herewith or previously filed:

 
 
 
Exhibit
 
Page
 
 
 
 
 
 
 
(1)
 
Joint Filing Agreement dated as of February 9, 2010 by and among Robert E. Robotti, Robotti & Company, Incorporated, Robotti & Company, LLC, Robotti & Company Advisors, LLC, Suzanne Robotti, Kenneth R. Wasiak, Ravenswood Management Company, L.L.C., The Ravenswood Investment Company, L.P., and Ravenswood Investments III, L.P.
 
Previously Filed
 
 
 
Power of Attorney, dated June 26, 2013, executed by Robert E. Robotti.
 
Page 21
 
 
 
 
 
 
 
 
Power of Attorney dated July 2, 2013, executed by Suzanne Robotti.
 
Page 23
 
 
 
 
 
 
 
 
Power of Attorney dated July 8, 2013, executed by Kenneth R. Wasiak
 
Page 25

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