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 *
MILLER LLOYD I III
   2. Issuer Name and Ticker or Trading Symbol
STAMPS.COM INC [STMP] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
4550 GORDON DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
05/24/2011
(Street)

NAPLES, FL 34102		 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 05/24/2011   P   9,456 A $ 12.311 (1) 9,456 (2) I By Milfam NG LLC
Common Stock               492,666 (2) I By Milfam II L.P.
Common Stock               350,403 D  
Common Stock               259,344 (2) I By Trust A-4 - Lloyd I. Miller
Common Stock               150,633 (2) I By Marli Miller Managed
Common Stock               128,761 (2) (3) I By Milgrat I (G7)
Common Stock               0 (3) (4) I By Trust C - Lloyd I. Miller
Common Stock               58,505 (2) (4) I By Milgrat I (X7)
Common Stock               55,000 (2) I By Milfam I L.P.
Common Stock               1,000 (2) I By Lloyd I. Miller, custodian under Florida UGMA for Lloyd I. Miller, IV
Common Stock               1,000 (2) I By Lloyd I. Miller, custodian under Florida UGMA for Alexandra B. Miller

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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
Stock Option (Common Stock) $ 14.5             04/23/2004 04/23/2014 Common Stock 5,000   5,000 D  
Stock Option (Common Stock) $ 20.69             05/25/2005 05/25/2015 Common Stock 5,000   10,000 D  
Stock Option (Common Stock) $ 31.64             06/07/2006 06/07/2016 Common Stock 5,000   15,000 D  
Stock Option (Common Stock) $ 13.81             06/06/2007 06/06/2017 Common Stock 5,000   20,000 D  
Stock Option (Common Stock) $ 13.48             05/22/2008 05/22/2018 Common Stock 5,000   25,000 D  
Stock Option (Common Stock) $ 8.86             06/25/2009 06/25/2019 Common Stock 5,000   30,000 D  
Stock Option (Common Stock) $ 10.55             06/16/2010 06/16/2020 Common Stock 5,000   35,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MILLER LLOYD I III
4550 GORDON DRIVE
NAPLES, FL 34102		   X   X    

Signatures

 /s/ David J. Hoyt Attorney-in-fact   05/25/2011
**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) The price in Column 4 is a weighted average price. The prices actually paid ranged from $12.30 to $12.32 per share. The reporting person will provide the Issuer, any security holder of the Issuer, or the SEC staff, upon request, information regarding the number of shares purchased at each price within the range.
(2) The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein. This filing shall not be deemed an admission that the reporting person is, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this filing.
(3) On December 13, 2010, 58,505 securities held by Milgrat I (G7) were transferred to Trust C. Such transaction only effected a change in the form of beneficial ownership without changing the reporting person's pecuniary interest in such securities and was exempt from Section 16 of the Securities Exchange Act of 1934 pursuant to Rule 16a-13.
(4) On January 20, 2011, 58,505 securities held by Trust C were transferred to Milgrat I (X7). Such transaction only effected a change in the form of beneficial ownership without changing the reporting person's pecuniary interest in such securities and was exempt from Section 16 of the Securities Exchange Act of 1934 pursuant to Rule 16a-13.

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