SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO

RULE 13d-2(a)

UNDER THE SECURITIES AND EXCHANGE ACT OF 1934

REIS, INC.

(Name of Issuer)

Common Stock, par value $0.02 per share

(Title of Class of Securities)

75936P105

(CUSIP Number)

John J. Goggins

Executive Vice President and General Counsel

Moody’s Corporation

7 World Trade Center at

250 Greenwich Street

New York, New York 10007

(212) 553-0300

Copy to:

Marie L. Gibson

Skadden, Arps, Slate, Meagher & Flom LLP

Four Times Square

New York, New York 10036

(212) 735-3000

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

August 29, 2018

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box.  ☐

The Shares over which the Reporting Person may be deemed to have shared voting power are comprised of 2,310,769 Shares (which includes 225,000 Shares issuable upon the exercise of vested stock options) that are the subject of the Tender and Support Agreements (as defined below). The Tender and Support Agreements provide that, upon the acquisition of any additional Shares or the exercise of any security exchangeable for Shares by the other parties to the Tender and Support Agreements, such Shares acquired (upon exercise or otherwise) shall be included under the Tender and Support Agreements, and the Reporting Person may be deemed to have beneficial ownership of such additional Shares.

The calculation of this percentage is based on 11,810,699 Shares (which (i) includes 241,000 Shares reserved for issuance upon the exercise of outstanding vested stock options and (ii) excludes 2,557,456 Shares held by wholly-owned subsidiaries of the Issuer) outstanding as of August 24, 2018.

The Shares over which the Reporting Person may be deemed to have shared voting power are comprised of 2,310,769 Shares (which includes 225,000 Shares issuable upon the exercise of vested stock options) that are the subject of the Tender and Support Agreements (as defined below). The Tender and Support Agreements provide that, upon the acquisition of any additional Shares or the exercise of any security exchangeable for Shares by the other parties to the Tender and Support Agreements, such Shares acquired (upon exercise or otherwise) shall be included under the Tender and Support Agreements, and the Reporting Person may be deemed to have beneficial ownership of such additional Shares.

The calculation of this percentage is based on 11,810,699 Shares (which (i) includes 241,000 Shares reserved for issuance upon the exercise of outstanding vested stock options and (ii) excludes 2,557,456 Shares held by wholly-owned subsidiaries of the Issuer) outstanding as of August 24, 2018.

SCHEDULE 13D

The class of equity securities to which this Schedule 13D (this “Schedule 13D”) relates is the common stock, par value $0.02 per share (the “Shares”), of Reis, Inc., a Maryland corporation (the “Issuer”). The principal executive office of Issuer is located at 1185 Avenue of the Americas, New York, NY 10036.

This Schedule 13D is being jointly filed by (i) Moody’s Corporation, a Delaware corporation (“Parent”) and (ii) Moody’s Analytics Maryland Corp., a Maryland corporation and wholly-owned subsidiary of Parent (“Merger Sub” and, collectively with Parent, the “Reporting Persons”).

A Joint Filing Agreement among the Reporting Persons is attached as Exhibit 4 hereto.

Parent’s principal executive offices are located at, and its principal business address is, 7 World Trade Center at 250 Greenwich Street, New York, NY 10007. The telephone number of Parent is (212) 553-0300. Parent, together with its subsidiaries, is a provider of (i) credit ratings; (ii) credit, capital markets and economic research, data and analytical tools; (iii) software solutions that support financial risk management activities; (iv) quantitatively derived credit scores; (v) financial services training and certification services; (vi) offshore financial research and analytical services; and (vii) company information and business intelligence products.

Merger Sub’s principal executive offices are located at c/o Moody’s Corporation, 7 World Trade Center at 250 Greenwich Street, New York, NY 10007. The telephone number of Merger Sub is (212) 553-0300. Merger Sub is a wholly-owned subsidiary of Parent. Merger Sub was formed solely for the purpose of effecting the transactions contemplated by the Merger Agreement (defined below) and has not engaged in any activities other than those incidental to its formation and the transactions contemplated by the Merger Agreement and the Tender and Support Agreements (each defined below).

The name, business address, present principal occupation or employment and citizenship of each director and executive officer of any of the Reporting Persons, as applicable, is set forth on Schedule A. During the preceding five years, none of the Reporting Persons nor, to the best knowledge of the Reporting Persons, any of the persons listed on Schedule A, have been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or was a party to a civil proceeding of a judicial or administrative body of competent jurisdiction as a result of which such person was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws, or finding any violation with respect to such laws.

The Tender and Support Agreements described in Item 4 of this Schedule 13D (the terms of which are hereby incorporated by reference) were entered into by and among Parent, Merger Sub and the Supporting Stockholders (as defined below in Item 4). The Supporting Stockholders entered into the Tender and Support Agreements as an inducement to Parent’s and Merger Sub’s willingness to enter into the Merger Agreement described in Item 4 of this Schedule 13D (the terms of which are hereby incorporated by reference). The Shares to which this Schedule 13D relates have not been purchased by any Reporting Person and no payments were made by or on behalf of any Reporting Person in connection with the execution of the Tender and Support Agreements.

On August 29, 2018, Parent, Merger Sub and Issuer entered into an Agreement and Plan of Merger (the “Merger Agreement”). Pursuant to the terms of the Merger Agreement, no later than 10 business days of the date of the Merger Agreement, Merger Sub will commence a tender offer (the “Offer”) to purchase all of the outstanding Shares at a price of $23.00 per Share net to the seller in cash, without interest and less any required withholding taxes (the “Offer Price”), upon the terms and subject to the conditions set forth in the Merger Agreement. Merger Sub’s obligation to accept for payment the Shares tendered in the Offer is conditioned upon, among other things, there being validly tendered and not withdrawn, prior to the expiration of the Offer (the “Offer Expiration Time”), a number of Shares that represent at least a majority of the Shares issued and outstanding (excluding, for purposes of determining such majority, the total number of Shares owned by any of the Issuer’s wholly-owned subsidiaries) (the “Minimum Condition”).

As promptly as possible following the Offer Expiration Time, and in any event on the first business day after the day on which certain conditions set forth in the Merger Agreement are satisfied or waived, or as otherwise agreed in writing by Parent and Issuer, and in accordance with applicable law, Merger Sub will be merged with and into Issuer (the “Merger”), with Issuer as the surviving corporation (the “Surviving Corporation”) and a wholly-owned subsidiary of Parent. The Merger will be governed by Section 3-106.1 of the Maryland General Corporation Law and effected without a vote of Issuer’s stockholders. At the effective time of the Merger (the “Merger Effective Time”) (i) each then outstanding Share (other than Shares held by a wholly-owned subsidiary of Issuer and Shares held by Parent, Merger Sub or any other subsidiary of Parent (collectively, the “Excluded Shares”)), will be converted into the right to receive consideration equal to the Offer Price, (ii) each Excluded Share will be converted into one fully paid and non-assessable share of common stock, par value $0.01 per share, of the Surviving Corporation, and (iii) each share of common stock, par value $0.01 per share, of Merger Sub will be converted into one fully paid and non-assessable share of common stock, par value $0.01 per share, of the Surviving Corporation. The foregoing description of the Merger Agreement is qualified in its entirety by reference to the full text of the Merger Agreement, which is attached as Exhibit 1 and is incorporated herein by reference.

Concurrently with the execution of the Merger Agreement, Parent and Merger Sub entered into two tender and support agreements, dated August 29, 2018 (the “Tender and Support Agreements”) with each of (i) Jonathan Garfield, Jonathan T. Garfield 2016 Qualified Annuity Trust and Jonathan Garfield Family Trust, in the case of one Tender and Support Agreement, and (ii) Lloyd Lynford, Lloyd N. Lynford 2016 Qualified Annuity Trust and Lloyd N. Lynford 2017 Qualified Annuity Trust, in the case of the other Tender and Support Agreement (each person listed in (i) and (ii) above, a “Supporting Stockholder”). Pursuant to the Tender and Support Agreements, each Supporting Stockholder has agreed to validly tender, or cause to be validly tendered, all Shares beneficially owned by such Supporting Stockholder (the “Subject Shares”) in the Offer, no later than 10 business days after commencement of the Offer. The Supporting Stockholders may transfer not more than 200,000 of the aggregate number of Subject Shares beneficially owned by the Supporting Stockholders (or approximately 1.70% of the Shares (based on 11,810,699 Shares outstanding as of August 24, 2018 (which (i) includes 241,000 Shares reserved for issuance upon the exercise of outstanding vested stock options and (ii) excludes Shares held by wholly-owned subsidiaries of the Issuer)) in one or more charitable contributions subject to certain terms and conditions including that any transferee agrees to take all actions necessary to tender such Subject Shares into the Offer. Collectively, the Supporting Stockholders had beneficial ownership, as of August 29, 2018, of an aggregate of 2,310,769 Shares (which includes 225,000 shares issuable upon the exercise of vested stock options) or approximately 19.6% of the Shares (based on 11,810,699 Shares outstanding as of August 24, 2018 (which (i) includes 241,000 Shares reserved for issuance upon the exercise of outstanding vested stock options and (ii) excludes 2,557,456 Shares held by any wholly-owned subsidiary of the Issuer)).

Pursuant to the Tender and Support Agreements, the Supporting Stockholders have agreed (i) to vote all of the Subject Shares against (i) any action or agreement that would reasonably be expected to result in the failure of any condition to the Offer to be satisfied, (ii) any proposal or offer (including any amendment or modification to any existing proposal or offer) from any person or “group” (as defined in Section 13(d) of the Exchange Act), other than Parent or any of its affiliates, for (x) a merger, consolidation or business combination representing 20% or more of the consolidated assets of Issuer and its subsidiaries, taken as a whole, (y) a sale, lease, exchange, transfer or other disposition, in a single transaction or series of related transactions, of 20% or more of the consolidated assets of Issuer and its subsidiaries, taken as a whole, or (z) a purchase or sale of shares of capital stock or other securities, in a single transaction or series of related transactions, representing 20% or more of the voting power of the capital stock of Issuer, including by way of a tender offer or exchange offer (such proposal or offer, a “Takeover Proposal”) and (iii) any other action, agreement or transaction involving Issuer that is intended, or would reasonably be expected, to impede, interfere with or prevent the consummation of the Offer or the Merger or the other transactions contemplated by the Merger Agreement.

Each Supporting Stockholder has also agreed to revoke any and all previous proxies granted with respect to the outstanding Subject Shares beneficially owned by such Supporting Stockholder which are inconsistent with such Supporting Stockholder’s obligations outlined above. Each Supporting Stockholder has agreed to grant a proxy appointing Parent as such Stockholder’s attorney-in-fact and proxy, with full power of substitution, for and in such Stockholder’s name, to vote or execute or withhold consent in the manner outlined above.

Each Supporting Stockholder has also agreed not to, directly or indirectly, subject to certain exceptions (i) encumber or permit to be encumbered such Stockholder’s Subject Shares, (ii) transfer, sell, assign, gift, hedge, distribute, pledge or otherwise dispose of, or enter into any derivative arrangement with respect to (collectively, “Transfer”), such Stockholder’s Subject Shares, or any right or interest therein, or (iii) enter into any contract with respect to any Transfer of such Stockholder’s Subject Shares or any legal or beneficial interest therein. Furthermore, each Supporting Stockholder has agreed that it will not engage in certain activities with respect to Takeover Proposals including, among other things, (i) soliciting, initiating, knowingly facilitating or knowingly encouraging the making of any Takeover Proposal, (ii) entering into or participating in discussion with any person regarding a Takeover Proposal or any potential Takeover Proposal or (iii) executing or entering into any contract providing for a Takeover Proposal ((i), (ii) and (iii) collectively, the “Restricted Activities”). If however, Issuer or the Board of Directors of Issuer determines that it can participate in such Restricted Activities in accordance with the Merger Agreement, the Supporting Stockholder will be entitled to participate in such activities.

The Tender and Support Agreement is subject to termination with respect to a Supporting Stockholder automatically, without any notice or other action by any party to the Tender and Support Agreement, upon the first to occur of: (i) the Effective Time (as defined in the Merger Agreement); (ii) the valid termination of the Merger Agreement; (iii) the entry without the prior written consent of such Supporting Stockholder into any amendment, waiver or modification to the Merger Agreement or the terms of, or conditions to, the Offer, affecting certain rights of such Supporting Stockholder or (iv) the mutual written consent of Parent and such Supporting Stockholder.

The foregoing description of the Tender and Support Agreement does not purport to be complete and is qualified in its entirety by reference to the Tender and Support Agreements, which are attached as Exhibit 2 and Exhibit 3 respectively, and incorporated herein by reference. Schedule B lists the names and number of Shares that are beneficially held by each Supporting Stockholder and subject to this Schedule 13D.

The purpose of the Offer and the Merger is for Parent to acquire control of, and the entire equity interest in, Issuer. The Offer, as the first step in the acquisition of Issuer, is intended to facilitate the acquisition of all of the Shares. The purpose of the Merger is to acquire all capital stock of Issuer not purchased pursuant to the Offer or otherwise and to cause Issuer to become a wholly-owned subsidiary of Parent.

The Shares acquired in the Offer will be canceled in the Merger and, upon completion of the Offer, Merger Sub will merge with and into Issuer, which will continue as the surviving corporation and a wholly-owned subsidiary of Parent. At the Merger Effective Time, (i) the directors of Merger Sub immediately prior to the Merger Effective Time will be directors of the Surviving Corporation, (ii) the officers of the Merger Sub immediately prior to the Merger Effective Time will be the officers of the Surviving Corporation and (iii) the articles of incorporation and bylaws of Issuer will be amended and restated to conform to the articles of incorporation and the bylaws of Merger Sub and as so amended and restated shall be the articles of incorporation and bylaws of the Surviving Corporation. Upon completion of the Merger, the Shares currently listed on the NASDAQ Global Select Market (“NASDAQ”) will cease to be listed on the NASDAQ and will subsequently be deregistered under the Exchange Act.

Except as set forth in this Schedule 13D and in connection with the Offer and the Merger described above, Parent has no plan or proposal that relates to or would result in any of the transactions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.

The Offer has not yet commenced. The foregoing is neither an offer to purchase nor a solicitation of an offer to sell Shares, nor is it a substitute for the tender offer materials that Parent and Merger Sub will file with the SEC upon commencement of the Offer. At the time the Offer is commenced, Parent and Merger Sub will file tender offer materials on Schedule TO, and the Issuer will file a Solicitation/Recommendation Statement on Schedule 14D-9 with the SEC with respect to the Offer. The tender offer materials (including an Offer to Purchase, a related Letter of Transmittal and certain other tender offer documents) and the Solicitation/Recommendation Statement will contain important information. Holders of Shares are urged to read these documents when they become available because they will contain important information that holders of Issuer securities should consider before making any decision regarding tendering their securities. The Offer to Purchase, the related Letter of Transmittal and certain other tender offer documents, as well as the Solicitation/Recommendation Statement, will be made available to all holders of Shares at no expense to them. The tender offer materials and the Solicitation/Recommendation Statement will be made available for free at the SEC’s web site at www.sec.gov. Holders of Shares may also obtain a free copy of these materials (when available) by directing such requests to the information agent for the Offer, which will be named in the tender offer statement on Schedule TO.

(a), (b)

Other than those Shares that may be deemed to be beneficially owned by operation of the Tender and Support Agreement, the Reporting Persons do not beneficially own any Shares.

As a result of the Tender and Support Agreements, Parent may be deemed to have shared power to vote up to 2,085,769 Shares in favor of approval of the Merger or in connection with certain other matters described in Item 4 above (the terms of which are incorporated herein by reference), and thus, each Reporting Person may be deemed to be the beneficial owner of 2,085,769 Shares. As of August 29, 2018, all Shares that may be deemed to be beneficially owned by the Reporting Persons constitute approximately 18.03% of the issued and outstanding Shares (based on 11,569,699 Shares as of August 24, 2018 (as represented by Issuer in the Merger Agreement)). The Reporting Persons are not entitled to any rights as a stockholder of Issuer as to the Shares covered by the Tender and Support Agreements, except as otherwise expressly provided in the Tender and Support Agreements.

Except as set forth in this Item 5, to the knowledge of the Reporting Persons, none of the persons named in Schedule A beneficially owns any Shares.

(c)

Except for the agreements described in this Schedule 13D, to the knowledge of the Reporting Persons, no transactions in the class of securities reported have been effected during the past 60 days by any person named in Schedule A or Item 5(a).

(d)

To the knowledge of the Reporting Persons, no other person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities of Issuer reported herein.

(e)

Inapplicable.

Except for the agreements described in this Schedule 13D, to the knowledge of the Reporting Persons, there are no contracts, arrangements, understandings or relationships (legal or otherwise), among the Reporting Persons or, to the knowledge of any of the Reporting Persons, any other person or entity referred to in Item 2 (including those listed on Schedule A), or between such persons and any other person, with respect to any securities of Issuer, including, but not limited to, transfer or voting of any of the securities, finder’s fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding proxies.

SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this Schedule 13D is true, complete and correct.

Date: September 10, 2018

SIGNATURES (CONT.)

SCHEDULE A

CERTAIN INFORMATION CONCERNING EXECUTIVE DIRECTORS AND OFFICERS OF

MOODY’S CORPORATION AND MOODY’S ANALYTICS MARYLAND CORP.

Directors and Executive Officers of Parent. The following table sets forth as to each of the directors and executive officers of Parent: his or her name, citizenship, business address, present principal occupation or employment and the name, principal business and address of any corporation or other organization in which such employment is conducted. Unless otherwise indicated, (i) the current business address of each person is 7 World Trade Center at 250 Greenwich Street, New York, NY 10007, and (ii) the principal employer of each such individual is Parent, Moody’s Analytics, Inc., Moody’s Investors Service, Inc. or Moody’s Shared Services, Inc. the business address of which is 7 World Trade Center at 250 Greenwich Street, New York, NY 10007. Moody’s Analytics, Inc., Moody’s Investors Services, Inc. and Moody’s Shared Services, Inc. are subsidiaries of Parent.

13

14

Directors and Executive Officers of Merger Sub. The following table sets forth as to each of the directors and executive officers of Merger Sub: his or her name, citizenship, business address, present principal occupation or employment and the name, principal business and address of any corporation or other organization in which such employment is conducted. Unless otherwise indicated, (i) the current business address of each person is 7 World Trade Center at 250 Greenwich Street, New York, NY 10007, and (ii) the principal employer of each such individual is Parent, Moody’s Analytics, Inc. or Moody’s Shared Services, Inc., the business address of which is 7 World Trade Center at 250 Greenwich Street, New York, NY 10007. Moody’s Analytics, Inc. and Moody’s Shared Services, Inc. are subsidiaries of Parent.

15

SCHEDULE B

STOCKHOLDERS AND SUBJECT SHARES