SEC FORM 4

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^*

KOEN PHILIP J

(Last)

(First)

(Middle)

301 VELOCITY WAY

(Street)

FOSTER CITY

94404

(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	10% Owner
X	Officer (give title below)	Other (specify below)
President and COO

3. Date of Earliest Transaction (Month/Day/Year)
02/14/2006

4. If Amendment, Date of 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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	02/14/2006		M		27,500	A	$3.25	30,755	D
Common Stock	02/14/2006		M		7,324	A	$22.4	38,079	D
Common Stock	02/14/2006		M		5,176	A	$29.44	43,255	D
Common Stock	02/14/2006		S		40,000⁽¹⁾	D	$44.7684	3,764⁽²⁾	D
Common Stock								468	I	As custodian for children

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy)	$3.25	02/14/2006		M			27,500	01/01/2006	03/06/2013	Common Stock	27,500	$0	12,500	D
Stock Option (Right to Buy)	$22.4	02/14/2006		M			7,324	⁽³⁾	04/22/2012	Common Stock	7,324	$0	489	D
Stock Option (Right to Buy)	$29.44	02/14/2006		M			5,176	12/09/2004	04/09/2011	Common Stock	5,176	$0	9,883	D

Explanation of Responses:

1. Average price of $44.7684 consists of the following blocks: 5000 shares at $44.47, 4700 shares at $44.50, 100 shares at $44.51, 200 shares at $44.53, 5000 shares at $44.58, 9800 shares at $44.80, 200 shares at $44.83, 500 shares at $44.88, 900 shares at $44.89, 433 shares at $44.90, 700 shares at $44.91, 400 shares at $44.92, 467 shares at $44.95, 6000 shares at $45, 100 shares at $45.01, 100 shares at $45.03, 4774 shares at $45.05, 400 shares at $45.08 and 226 shares at $45.09.

2. Includes 509 shares acquired on 2/14/2006 pursuant to the Issuer's Employee Stock Purchase Plan.

3. The option vests on a monthly basis from 4/22/2002.

Remarks:

	Monica Volta, Attorney-in-Fact	02/16/2006
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.