SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
STT COMMUNICATIONS LTD
(Last) (First) (Middle)
51 CUPPAGE ROAD
#10-11/17 STARHUB CENTRE
(Street)
SINGAPORE U0 229469
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
EQUINIX INC [ EQIX ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
11/09/2005
4. If Amendment, Date of 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
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 11/09/2005 C 3,074,919 A (1) 10,189,549 I By subsidiary(2)
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 Securities Underlying Derivative Security (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: 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 CONVERTIBLE PREFERRED STOCK (3) 11/09/2005 C 3,074,919 (4) (5) COMMON STOCK 3,074,919 (5) 0 I By subsidiary(2)
1. Name and Address of Reporting Person*
STT COMMUNICATIONS LTD
(Last) (First) (Middle)
51 CUPPAGE ROAD
#10-11/17 STARHUB CENTRE
(Street)
SINGAPORE U0 229469
(City) (State) (Zip)
1. Name and Address of Reporting Person*
i-STT INVESTMENTS PTE. LTD.
(Last) (First) (Middle)
51 CUPPAGE ROAD
#10-11/17 STARHUB CENTRE
(Street)
SINGAPORE U0 229469
(City) (State) (Zip)
1. Name and Address of Reporting Person*
SINGAPORE TECHNOLOGIES TELEMEDIA PTE LTD
(Last) (First) (Middle)
51 CUPPAGE ROAD
#10-11/17 STARHUB CENTRE
(Street)
SINGAPORE U0 229469
(City) (State) (Zip)
1. Name and Address of Reporting Person*
TEMASEK HOLDINGS (PRIVATE) LTD
(Last) (First) (Middle)
60B ORCHARD ROAD, THE ATRIUM@ORCHARD
#06-18 TOWER 2
(Street)
SINGAPORE U0 238891
(City) (State) (Zip)
Explanation of Responses:
1. On November 9, 2005, i-STT Investments Pte. Ltd. converted 3,074,919 shares of Series A Convertible Preferred Stock into Common Stock of the Issuer on a 1-for-1 basis.
2. STT Communications Ltd, a wholly-owned subsidiary of Singapore Technologies Telemedia Pte Ltd, a wholly-owned subsidiary of Temasek Holdings (Private) Limited ("Temasek"), has an indirect interest in the securities reported herein by virtue of its ownership interests in i-STT Investments Pte. Ltd., which is the record holder of the securities of the Issuer reported herein. Temasek disclaims beneficial ownership of such securities except to the extent of its pecuniary interest herein.
3. The Series A Convertible Preferred Stock is convertible into Common Stock of the Issuer on a 1-for-1 basis.
4. 1,206,252 shares became exercisable on November 7, 2005, and 1,868,667 shares became exercisable on December 31, 2002.
5. Not applicable.
/s/ Pek Siok Lan, Company Secretary, STT COMMUNICATIONS LTD 11/14/2005
/s/ Pek Siok Lan, Director, i-STT INVESTMENTS PTE. LTD. 11/14/2005
/s/ Pek Siok Lan, Company Secretary, SINGAPORE TECHNOLOGIES TELEMEDIA PTE LTD 11/14/2005
/s/ Chia Yue Joo, Managing Director, Legal & Regulations, TEMASEK HOLDINGS (PRIVATE) LIMITED 11/14/2005
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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