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 *
MILLENCO, L.L.C.
  2. Issuer Name and Ticker or Trading Symbol
HAPC, Inc. [HAPN]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
666 FIFTH AVENUE, 8TH FLOOR, 
3. Date of Earliest Transaction (Month/Day/Year)
10/26/2007
(Street)

NEW YORK, NY 10103-0899
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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

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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
warrant ("Warrant") $ 5 10/26/2007   S     87,500 10/26/2007(1) 04/11/2011(1) common stock, par value $0.0001 per share ("Common Stock") 87,500 (1) $ 0.5 1,684,625 D (2)  
Warrant $ 5 10/29/2007   S     166,070 10/26/2007(1) 04/11/2011(1) Common Stock 166,070 (1) $ 0.5 1,518,555 (1) D (2)  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MILLENCO, L.L.C.
666 FIFTH AVENUE, 8TH FLOOR
NEW YORK, NY 10103-0899
    X    
MILLENNIUM MANAGEMENT, L.L.C.
666 FIFTH AVENUE, 8TH FLOOR
NEW YORK, NY 10103-0899
      May be deemed as group member.
ENGLANDER ISRAEL A
C/O MILLENNIUM MANAGEMENT LLC
666 FIFTH AVENUE, 8TH FLOOR
NEW YORK, NY 10103-0899
      May be deemed as group member.

Signatures

 * Mark Meskin, Chief Executive Officer   10/29/2007
**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) As of the date hereof, Millenco LLC, a Delaware limited liability company ("Millenco") (formerly known as Millenco, L.P.) was the beneficial owner of 1,518,555 warrants ("Warrants") to purchase shares of the Issuer's common stock, par value $0.0001 per share ("Common Stock"). Each Warrant, which became exercisable upon the Issuer's completion of its acquisition of InfuSystem, Inc. on October 26, 2007, entitles the holder to purchase one share of the Issuer's Common Stock at a price of $5.00 per share. The Warrants will expire on April 11, 2011, or earlier upon redemption.
(2) Millennium Management LLC, a Delaware limited liability company ("Millennium Management"), is the manager of Millenco, and consequently may be deemed to have shared voting control and investment discretion over securities owned by Millenco. Israel A. Englander ("Mr. Englander") is the managing member of Millennium Management. As a result, Mr. Englander may be deemed to have shared voting control and investment discretion over securities deemed to be beneficially owned by Millennium Management. The foregoing should not be construed in and of itself as an admission by Millennium Management or Mr. Englander as to beneficial ownership of the shares owned by Millenco.
 
Remarks:
*Millenco LLC

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