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) 06/09/2006 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 06/07/2006   J   583,953 A (1) 583,953 I Parent corporation of Federal Insurance Company Common Stock 06/07/2006   J   57,754 A (2) 2,999,834 I Parent corporation of Federal Insurance Company

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

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		06/16/2006
**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 583,953 shares of Common Stock, 497,761 shares of New Redeemable Preferred Stock and cash.
(2)	In payment of dividends accrued on the Series A Common Stock, the Reporting Person received 57,754 shares of Common Stock, 49,229 shares of New Redeemable Preferred Stock and cash.
Remarks: The amount of net proceeds received by the Issuer from its initial public offering was recalculated after all of the Issuer's offering related expenses were finalized.  The recalculation of net proceeds resulted in an increase in the number of shares of Common Stock deemed received by the filing person upon the closing of the offering by way of dividend payment and redemption.  This amended Form 4 reflects the increase in shares of Common Stock deemed received by the filing person.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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