Ownership Submission
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 OF SECURITIES

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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(Print or Type Responses)
1. Name and Address of Reporting Person *
McMahon William B
  2. Issuer Name and Ticker or Trading Symbol
NAUTILUS, INC. [NLS]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Operating Officer
(Last)
(First)
(Middle)
NAUTILUS, INC., 17750 SE 6TH WAY
3. Date of Earliest Transaction (Month/Day/Year)
03/15/2013
(Street)

VANCOUVER, WA 98683
4. If Amendment, Date Original Filed(Month/Day/Year)
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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 03/15/2013   M   26,667 (1) A $ 0 52,427 D  
Common Stock 03/15/2013   F   7,294 (2) D $ 6.51 45,133 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)
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
Performance Unit Award $ 0 (1) 03/15/2013   M     26,667   (1)   (1) Common Stock 26,667 $ 0 13,333 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
McMahon William B
NAUTILUS, INC.
17750 SE 6TH WAY
VANCOUVER, WA 98683
      Chief Operating Officer  

Signatures

 /s/ Wayne M. Bolio, Attorney-in-fact for William B. McMahon   03/19/2013
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Represents the settlement upon partial vesting of a performance unit award granted on April 2, 2010. The award entitles the reporting owner to receive up to 40,000 shares of issuer common stock upon achievement of a stock price performance condition, subject also to employment-based vesting of the award in three equal annual installments on the anniversary of the grant date. The stock price performance condition was achieved on March 15, 2013 when the closing price of the issuer's common stock reported on the New York Stock Exchange exceeded $5.98 per share on 20 trading days of the 30 consecutive trading day period ending on March 15, 2013. The acquired shares represent settlement of the time-vested portion of the award on the date the stock price performance condition was achieved. The remaining shares subject to the award will vest, subject to satisfaction of the employment conditions, on April 2, 2013.
(2) Represents shares withheld to satisfy the tax liability incident to the vesting of a security issued in accordance with Rule 16b-3.

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