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 *
CHUBB CORP
  2. Issuer Name and Ticker or Trading Symbol
Alphatec Holdings, Inc. [ATEC]
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)
15 MOUNTAIN VIEW ROAD
3. Date of Earliest Transaction (Month/Day/Year)
06/07/2006
(Street)

WARREN, NJ 07059
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
Series A Preferred Stock 06/07/2006   J   1,500,000 D (1) 0 (1) I Parent corporation of Federal Insurance Company
Common Stock 06/07/2006   J   577,732 A (1) 577,732 I Parent corporation of Federal Insurance Company
New Redeemable Preferred Stock 06/07/2006   J   497,761 A (1) 497,761 I Parent corporation of Federal Insurance Company
Common Stock 06/07/2006   C   2,358,127 A (4) 2,935,859 I Parent corporation of Federal Insurance Company
Common Stock 06/07/2006   J   57,138 A (3) 2,992,997 I Parent corporation of Federal Insurance Company
New Redeemable Preferred Stock 06/07/2006   J   49,229 A (3) 546,990 I Parent corporation of Federal Insurance Company

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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
Series A Common Stock (2) 06/07/2006   C     660,540   (2)   (2) Common Stock 2,358,127 (2) 0 I Parent corporation of Federal Insurance Company

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CHUBB CORP
15 MOUNTAIN VIEW ROAD
WARREN, NJ 07059
    X    

Signatures

 /s/ Daren Graham, Attorney-in-fact   06/09/2006
**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 Series A Preferred Stock was redeemed by the Issuer upon the closing of the Issuer's initial public offering for 577,732 shares of Common Stock, 497,761 shares of New Redeemable Preferred Stock and cash.
(2) There is no expiration date. Each share of Series A Common Stock converted into common stock on a 3.57-for-1 basis effective upon the closing of the Issuer's initial public offering.
(3) In payment of dividends accrued on the Series A Common Stock, the Reporting Person received 57,138 shares of Common Stock, 49,229 shares of New Redeemable Preferred Stock and cash.
(4) Each share of Series A Common Stock converted into common stock on a 3.57-for-1 basis effective upon the closing of the Issuer's initial public offering.

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