UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

MINDBODY, Inc.

(Name of Issuer)

Class A Common Stock, par value $0.000004 per share

(Title of Class of Securities)

60255W 10 5

(CUSIP Number)

January 10, 2017

(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 information required in 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).

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MINDBODY, Inc. (the “Issuer”)

4051 Broad Street, Suite 220

San Luis Obispo, CA 93401

This statement is filed by J.P. Morgan Investment Management Inc. (“JPMIM”); PEG Digital Growth Fund II L.P. (“DGF II”) and PEG Secondary Private Investors II L.P. (“Secondary II,” together with JPMIM and DGF II, the “Reporting Persons”).

For each Reporting Person:

320 Park Avenue

New York, New York 10022

For each Reporting Person, Delaware

Class A Common Stock, par value $0.000004 per share (“Class A Common Stock”)

60255W 10 5

Not Applicable.

The information required by this item with respect to each Reporting Person is set forth in Rows 5 through 9 and 11 of the cover page to this Schedule 13G.

The percent of Class A Common Stock represented by the amount beneficially owned by each Reporting Person is based on 27,004,858 shares of Class A Common Stock outstanding on November 7, 2016, as disclosed in the Issuer’s Form 10-Q filed on November 10, 2016.

DGF II directly holds 1,356,130 shares of Class A Common Stock and 1,356,129 shares of Class B Common

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Stock, par value $0.000004 per share, of the Issuer (“Class B Common Stock”). Secondary II directly holds 258,311 shares of Class A Common Stock and 258,310 shares of Class B Common Stock. Shares of Class B Common Stock are convertible into shares of Class A Common Stock on a one-for-one-basis. JPMIM serves as investment advisor to DGF II and Secondary II and shares voting and dispositive power over shares of Class A Common Stock beneficially owned by DGF II and Secondary II, respectively.

Pursuant to Stock Restriction Agreements between each of DGF II and Secondary II, on the one hand, and the Issuer, on the other hand (the “Stock Restriction Agreements”), DGF II and Secondary II are restricted from converting their Class B Common Stock into Class A Common Stock if, after the conversion, DGF II or Secondary II, as the case may be, and its affiliates and any other person with which such holder would constitute a group would beneficially own more than 9.99% of the outstanding Class A Common Stock.

Accordingly, as restricted by the Stock Restriction Agreements, (i) JPMIM’s beneficial ownership consists of (A) 1,356,130 shares directly held by DGF II, (B) 258,311 shares directly held by Secondary II, (C) 1,173,257 shares issuable upon conversion of Class B Common Stock held by DGF II and Secondary II, in the aggregate, and (D) 27,295 shares directly held by client accounts advised by JPMIM (the “Client Account Shares”); (ii) DGF II’s beneficial ownership consists of (A) 1,356,130 shares that it holds directly and (B) 1,173,257 shares issuable upon conversion of Class B Common Stock that it holds directly (assuming no conversion of Class B Common Stock held by Secondary II) and (iii) Secondary II’s beneficial ownership consists of (A) 258,311 shares that it holds directly and (B) 258,310 shares issuable upon conversion of Class B Common Stock that it holds directly (assuming conversion of no more than 914,947 shares of Class B Common Stock by DGF II).

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 ☐.

With respect to the Client Account Shares beneficially owned by JPMIM, the particular account with respect to which the shares are held has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities.

Not applicable.

Not applicable.

Not applicable.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

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Signature

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.

Dated January 23, 2017

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Exhibit A

Agreement

The persons below hereby agree that the Schedule 13G to which this agreement is attached as an exhibit, as well as all future amendments to such Schedule 13G, shall be filed on behalf of each of them. This agreement is intended to satisfy the requirements of Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934.

Dated January 23, 2017

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