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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1. Name and Address of Reporting Person * STROHMEYER KARL   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, Americas (Last) (First) (Middle) ONE LAGOON DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 02/15/2018 (Street) REDWOOD CITY, CA 94065 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 Common Stock 02/15/2018   M   1,661 A $ 0 2,959 (1) D   Common Stock 02/15/2018   M   1,283 A $ 0 4,242 D   Common Stock 02/16/2018   S(2)   4 D $ 399.2148 (3) 4,238 D   Common Stock 02/16/2018   S(2)   610 D $ 400.8205 (4) 3,628 D   Common Stock 02/16/2018   S(2)   300 D $ 401.9513 (5) 3,328 D   Common Stock 02/16/2018   S(2)   300 D $ 402.86 (6) 3,028 D   Common Stock 02/16/2018   S(2)   200 D $ 404.02 2,828 D

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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

Restricted Stock Units

$ 0

02/15/2018

M

1,661

(7)

(8)

Common Stock

1,661

$ 0

0

D

Restricted Stock Units

$ 0

02/15/2018

M

1,283

(9)

(8)

Common Stock

1,283

$ 0

1,283

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
STROHMEYER KARL ONE LAGOON DRIVE REDWOOD CITY, CA 94065			President, Americas

Signatures

Samantha Lagocki, POA		02/20/2018
**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)	Includes 88 shares acquired under the Equinix, Inc. Employee Stock Purchase Plan on February 14, 2018.
(2)	Shares were sold pursuant to a 10b5-1 Trading Plan in order to raise funds to pay the required withholding tax pursuant to the vesting of RSUs.
(3)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $399.21 to $399.24, inclusive. The reporting person undertakes to provide to Equinix, Inc, any security holder of Equinix Inc, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnotes 3 through 6 to this Form 4.
(4)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $400.41 to $401.06 inclusive.
(5)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $401.65 to $402.49 inclusive.
(6)	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $402.74 to $403.07 inclusive.
(7)	On February 12, 2015 the reporting person was granted performance restricted stock units, the vesting of which was subject to both continued service and the attainment of certain revenue and AFFO targets for 2015. The Compensation Committee certified the degree to which the targets were achieved, therefore 50% of the award vested on February 12, 2016, with 25% additional units scheduled to vest on each of February 15, 2017 and February 15, 2018, subject solely to continued service.
(8)	Restricted stock unit award expires upon reporting person's termination of employment.
(9)	On March 16, 2016, the reporting person was granted performance restricted stock units, the vesting of which was subject to both continued service and the attainment of certain AFFO, Revenue and EBITDA targets for 2016. The Compensation Committee certified the degree to which the targets were achieved, therefore 50% of the award vested on February 17, 2017, 25% will vest on February 15, 2018 and the remaining 25% will on February 15, 2019, subject solely to continued service.

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