Sec Form 4 Filing - ROBINSON PAUL @ SEACOR HOLDINGS INC /NEW/ - 2013-03-08

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person ROBINSON PAUL 2. Issuer Name and Ticker or Trading Symbol SEACOR HOLDINGS INC /NEW/ [ CKH] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) SVP, General Counsel and Secr (Last) (First) (Middle) C/O SEACOR HOLDINGS INC., 2200 ELLER DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 03/08/2013 (Street) FT. LAUDERDALE, FL33316 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/08/2013 M 5,155 A $ 53.4 27,739 D Common Stock 03/08/2013 M 226 A $ 28.43 27,965 D Common Stock 03/08/2013 M 226 A $ 44.96 28,191 D Common Stock 03/08/2013 M 226 A $ 43.1 28,417 D Common Stock 03/08/2013 M 226 A $ 42.41 28,643 D Common Stock 03/08/2013 M 645 A $ 46.19 29,288 D Common Stock 03/08/2013 M 645 A $ 37.18 29,933 D Common Stock 03/08/2013 M 645 A $ 47.34 30,578 D Common Stock 03/08/2013 S 7,994 D $ 70.4167 ( 1 ) 22,584 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Options (right to buy) $ 53.4 ( 2 ) 03/08/2013 M 5,155 ( 3 ) 10/16/2017 Common Stock 5,155 $ 0 0 ( 2 ) D Stock Options (right to buy) $ 28.43 ( 2 ) 03/08/2013 M 226 ( 4 ) 03/04/2019 Common Stock 226 $ 0 225 ( 2 ) D Stock Options (right to buy) $ 44.96 ( 2 ) 03/08/2013 M 226 ( 4 ) 03/04/2019 Common Stock 226 $ 0 225 ( 2 ) D Stock Options (right to buy) $ 43.1 ( 2 ) 03/08/2013 M 226 ( 4 ) 03/04/2019 Common Stock 226 $ 0 225 ( 2 ) D Stock Options (right to buy) $ 42.41 ( 2 ) 03/08/2013 M 226 ( 4 ) 03/04/2019 Common Stock 226 $ 0 225 ( 2 ) D Stock Options (right to buy) $ 46.19 ( 2 ) 03/08/2013 M 645 ( 5 ) 03/04/2020 Common Stock 645 $ 0 1,288 ( 2 ) D Stock Options (right to buy) $ 37.18 ( 2 ) 03/08/2013 M 645 ( 5 ) 03/04/2020 Common Stock 645 $ 0 1,288 ( 2 ) D Stock Options (right to buy) $ 47.34 ( 2 ) 03/08/2013 M 645 ( 5 ) 03/04/2020 Common Stock 645 $ 0 1,288 ( 2 ) D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other ROBINSON PAUL C/O SEACOR HOLDINGS INC. 2200 ELLER DRIVE FT. LAUDERDALE, FL33316 SVP, General Counsel and Secr Signatures Paul L. Robinson 03/12/2013 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The price reported in Column 4 is a weighted average price. The Common Shares were sold in separate transactions on the same day at prices ranging from $70.32 to $70.53 per share. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Common Shares sold at each separate price within the range set forth in this Footnote. ( 2 )On January 31, 2013, Issuer effected a spin-off of its Aviation Division (the "Spin-Off"). In connection with the Spin-Off, the amount and exercise price of Reporting Person's options to purchase shares of Common Stock of Issuer were adjusted pursuant to the Company's Amended 2007 Share Incentive Plan. ( 3 )These shares became exercisable in equal installments on October 16, 2011 and October 16, 2012. ( 4 )These options became exercisable in equal installments of 20% of the total number of shares granted on each of 3/4/10, 3/4/11, 3/4/12 and 3/4/13. ( 5 )These options became exercisable in equal installments of 20% of the total number of shares granted on each of 3/4/11, 3/4/12 and 3/4/13.

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* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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