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SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Schedule 13G
(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (b)

(Amendment No. 2)*

Nimble Storage, Inc.

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

65440R101

(CUSIP Number)

December 31, 2015

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

(Continued on following pages)

Page 1 of 16 Pages

Exhibit Index Contained on Page 14

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1	NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Accel IX L.P. (“A9”)
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) ¨ (b) x
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0 shares.
	6	SHARED VOTING POWER 0 shares.
	7	SOLE DISPOSITIVE POWER 0 shares.
	8	SHARED DISPOSITIVE POWER 0 shares.

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON	0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9	0.0%
12	TYPE OF REPORTING PERSON*	PN

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1	NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Accel IX Strategic Partners L.P. (“A9SP”)
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) ¨ (b) x
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0 shares.
	6	SHARED VOTING POWER 0 shares.
	7	SOLE DISPOSITIVE POWER 0 shares.
	8	SHARED DISPOSITIVE POWER 0 shares.

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON	0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9	0.0%
12	TYPE OF REPORTING PERSON*	PN

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1	NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Accel IX Associates L.L.C. (“A9A”)
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ¨ (b) x
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0 shares.
	6	SHARED VOTING POWER 0 shares.
	7	SOLE DISPOSITIVE POWER 0 shares.
	8	SHARED DISPOSITIVE POWER 0 shares.

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON	0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES	¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9	0.0%
12	TYPE OF REPORTING PERSON	OO

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1	NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Accel Investors 2007 L.L.C. (“AI07”)
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) ¨ (b) x
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0 shares.
	6	SHARED VOTING POWER 0 shares.
	7	SOLE DISPOSITIVE POWER 0 shares.
	8	SHARED DISPOSITIVE POWER 0 shares.

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON	0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9	0.0%
12	TYPE OF REPORTING PERSON*	00

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1	NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Accel Growth Fund II L.P. (“AGF2”)
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) ¨ (b) x
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0 shares.
	6	SHARED VOTING POWER 0 shares.
	7	SOLE DISPOSITIVE POWER 0 shares.
	8	SHARED DISPOSITIVE POWER 0 shares.

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON	0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9	0.0%
12	TYPE OF REPORTING PERSON*	PN

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1	NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Accel Growth Fund II Strategic Partners L.P. (“AGF2SP”)
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) ¨ (b) x
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0 shares.
	6	SHARED VOTING POWER 0 shares.
	7	SOLE DISPOSITIVE POWER 0 shares.
	8	SHARED DISPOSITIVE POWER 0 shares.

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON	0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9	0.0%
12	TYPE OF REPORTING PERSON*	PN

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1	NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Accel Growth Fund II Associates L.L.C. (“AGF2A”)
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) ¨ (b) x
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0 shares.
	6	SHARED VOTING POWER 0 shares.
	7	SOLE DISPOSITIVE POWER 0 shares.
	8	SHARED DISPOSITIVE POWER 0 shares.

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON	0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9	0.0%
12	TYPE OF REPORTING PERSON*	00

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1	NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Accel Growth Fund Investors 2012 L.L.C. (“AGFI12”)
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) ¨ (b) x
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 0 shares.
	6	SHARED VOTING POWER 0 shares.
	7	SOLE DISPOSITIVE POWER 0 shares.
	8	SHARED DISPOSITIVE POWER 0 shares.

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON	0
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9	0.0%
12	TYPE OF REPORTING PERSON*	00

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1	NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Ping Li (“PLI”)
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) ¨ (b) x
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 265,699 shares, 256,850 of which are directly owned by the Li Family Trust, dated July 24, 2009, 5,188 of which are directly owned by PLI and 3,661 of which are directly owned by Li Family GST Exempt Trust.
	6	SHARED VOTING POWER 0 shares.
	7	SOLE DISPOSITIVE POWER 265,699 shares, 256,850 of which are directly owned by the Li Family Trust, dated July 24, 2009, 5,188 of which are directly owned by PLI and 3,661 of which are directly owned by Li Family GST Exempt Trust.
	8	SHARED DISPOSITIVE POWER 0 shares.

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON	265,699
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*	¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9	0.3%
12	TYPE OF REPORTING PERSON*	IN

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This Amendment No. 2 amends the statement on Schedule 13G filed by Accel IX L.P., a Delaware limited partnership (“A9”), Accel IX Strategic Partners L.P., a Delaware limited partnership (“A9SP”), Accel Investors 2007 L.L.C., a Delaware limited liability company (“AI07”), Accel Growth Fund II L.P., a Delaware limited partnership (“AGF2”), Accel Growth Fund II Strategic Partners L.P., a Delaware limited partnership (“AGF2SP”), Accel Growth Fund II Associates L.L.C., a Delaware limited liability company (“AGF2A”), Accel Growth Fund Investors 2012 L.L.C., a Delware limited liability company (“AGFI12”) and Ping Li (“PLI”). The foregoing entities and individual are collectively referred to as the “Reporting Persons.”

ITEM 1(A).	NAME OF ISSUER

	Nimble Storage, Inc.

ITEM 1(B).	ADDRESS OF ISSUER’S PRINCIPAL EXECUTIVE OFFICES

	211 River Oaks Parkway
	San Jose, CA 95134

ITEM 2(A).	NAME OF PERSONS FILING

	A9A is the general partner of A9 and A9SP, and may be deemed to have sole power to vote and sole power to dispose of shares of the issuer directly owned by A9 and A9SP. AGF2A is the general partner of AGF2 and AGF2SP, and may be deemed to have sole power to vote and sole power to dispose of shares of the issuer directly owned by AGF2 and AGF2SP. PLI is a director of the issuer and managing member of A9A, AGF2A, AI07 and AGFI12, and may be deemed to have shared power to vote and shared power to dispose of shares of the issuer directly owned by A9, A9SP, AGF2, AGF2SP, AI07 and AGFI12.

ITEM 2(B).	ADDRESS OF PRINCIPAL OFFICE

	The address for each of the Reporting Persons is:

	Accel Partners
	428 University Avenue
	Palo Alto, CA 94301

ITEM 2(C)	CITIZENSHIP

	A9, A9SP, AGF2 and AGF2SP are Delaware limited partnerships. A9A, AGF2A, AI07 and AGFI12 are Delaware limited liability companies. PLI is a United States citizen.

ITEM 2(D)	TITLE OF CLASS OF SECURITIES

	Common Stock, $0.001 par value.

ITEM 2(E)	CUSIP NUMBER

	65440R101

ITEM 3.	Not Applicable

ITEM 4.	OWNERSHIP

	The following information with respect to the ownership of the Common Stock of the issuer by the persons filing this Statement is provided as of December 31, 2015.

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	(a)	Amount beneficially owned:

		See Row 9 of cover page for each Reporting Person.

	(b)	Percent of Class:

		See Row 11 of cover page for each Reporting Person.

	(c)	Number of shares as to which such person has:

	(i)	Sole power to vote or to direct the vote:

		See Row 5 of cover page for each Reporting Person.

	(ii)	Shared power to vote or to direct the vote:

		See Row 6 of cover page for each Reporting Person.

	(iii)	Sole power to dispose or to direct the disposition of:

		See Row 7 of cover page for each Reporting Person.

	(iv)	Shared power to dispose or to direct the disposition of:

		See Row 8 of cover page for each Reporting Person.

ITEM 5.	OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS

	If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following: x Yes

ITEM 6.	OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

	Under certain circumstances set forth in the limited partnership agreements of A9, A9SP, AGF2 and AGF2SP, and the limited liability company agreements of A9A, AGF2A, AI07 and AGFI12, the general partner and/or limited partners or members, as the case may be, of each of such entities may be deemed to have the right to receive dividends from, or the proceeds from, the sale of the shares of the issuer owned by each such entity of which they are a partner.

ITEM 7.	IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY

	Not applicable.

ITEM 8.	IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

	Not applicable.

ITEM 9.	NOTICE OF DISSOLUTION OF GROUP.

	Not applicable.

ITEM 10.	CERTIFICATION.

	Not applicable.

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SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 16, 2016

Entities:	Accel IX L.P.
	Accel IX Strategic Partners L.P.
	Accel IX Associates L.L.C.
	Accel Investors 2007 L.L.C.
	Accel Growth Fund II L.P.
	Accel Growth Fund II Strategic Partners L.P.
	Accel Growth Fund II Associates L.L.C.
	Accel Growth Fund Investors 2012 L.L.C.

	By:	/s/ Tracy L. Sedlock
		Tracy L. Sedlock, Attorney-in-fact for
		the above-listed entities

Individuals:

Ping Li (“PLI”)

	By:	/s/ Tracy L. Sedlock
		Tracy L. Sedlock, Attorney-in-fact for
		the above-listed individual

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EXHIBIT INDEX

		Found on Sequentially
Exhibit		Numbered Page

Exhibit A: Agreement of Joint Filing		15

Exhibit B: Power of Attorney		16

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exhibit A

Agreement of Joint Filing

The Reporting Persons hereby agree that a single Schedule 13G (or any amendment thereto) relating to the Common Stock of Nimble Storage, Inc. shall be filed on behalf of each of the Reporting Persons. Note that copies of the applicable Agreement of Joint Filing are already on file with the appropriate agencies.

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exhibit B

Power of Attorney

Tracy L. Sedlock has signed this Schedule 13G as Attorney-In-Fact. Note that copies of the applicable Power of Attorney are already on file with the appropriate agencies.