Filing Details

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ________)* Immune Design Corp. (Name of Issuer) Common Stock (Title of Class of Securities) 45252L103 (CUSIP Number) September 29, 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 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). CUSIP No. 45252L103 13G Page 2 of 8

1. NAMES OF REPORTING PERSONS Bain Capital Public Equity Management, LLC 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) ? (b) ? 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION DelawareNUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 1,299,013 6. SHARED VOTING POWER 0 7. SOLE DISPOSITIVE POWER 1,299,013 8. SHARED DISPOSITIVE POWER 09. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,299,013 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) ?11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.07% 12. TYPE OF REPORTING PERSON (see instructions) PNCUSIP No. 45252L103 13G Page 3 of 81. NAMES OF REPORTING PERSONS Brookside Capital Investors II, L.P. 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) ? (b) ? 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION DelawareNUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 1,299,013 6. SHARED VOTING POWER 0 7. SOLE DISPOSITIVE POWER 1,299,013 8. SHARED DISPOSITIVE POWER 011. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.07% 12. TYPE OF REPORTING PERSON (see instructions) PNCUSIP No. 45252L103 13G Page 4 of 8 Pages1. NAMES OF REPORTING PERSONS Brookside Capital Trading Fund, L.P. 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions) (a) ? (b) ? 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION DelawareNUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 5. SOLE VOTING POWER 1,299,013 6. SHARED VOTING POWER 0 7. SOLE DISPOSITIVE POWER 1,299,013 8. SHARED DISPOSITIVE POWER 09. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,299,013 10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (see instructions) ?11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 5.07% 12. TYPE OF REPORTING PERSON (see instructions) PNCUSIP No. 45252L103 13G Page 5 of 8Item 1. (a) Name of Issuer The name of the issuer to which this filing on Schedule 13G relates is Immune Design Corp. (the "Company")(b) Address of the Principal Office or, if none, residence The principal business address of each of the Trading Fund, Brookside Investors II and BCPE Management is c/o Bain Capital Public Equity, LP, 200 Clarendon Street, Boston, MA 02116.(c) Citizenship Each of the Trading Fund, Brookside Investors II and BCPE Management is organized under the laws of the State of Delaware.(d) Title of Class of Securities The class of equity securities of the Company to which this filing on Schedule 13G relates is Common Stock ("Common Stock").(e) CUSIP Number The CUSIP number of the Company's Common Stock is 45252L103. Item 3. If this statement is filed pursuant to 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: (a) ? Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).(b) ? Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).(c) ? Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).(d) ? Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).(f) ? An employee benefit plan or endowment fund in accordance with 240.13d-1(b)(1)(ii)(F);(g) ? A parent holding company or control person in accordance with 240.13d-1(b)(1)(ii)(G);(h) ? A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);(i) ? A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);(j) ? Group, in accordance with 240.13d-1(b)(1)(ii)(J).[x] If this statement is filed pursuant to 240.13d-1(c), check this box. Item 4. Ownership. Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.(a) Amount beneficially owned: 1,299,013.(b) Percent of class: 5.07% based upon 25,619,732 shares of Common Stock outstanding.(c) Number of shares as to which the person has: 1,299,013.(i) Sole power to vote or to direct the vote: 1,299,013.(ii) Shared power to vote or to direct the vote: 0.(iv) Shared power to dispose or to direct the disposition of: 0.Item 5. Ownership of Five Percent or Less of a Class. Not applicable. Item 6. Ownership of More than Five Percent on Behalf of Another Person. Not applicable. 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.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.CUSIP No. 45252L103 13G Page 7 of 8After 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: October 6, 2017 BAIN CAPITAL PUBLIC EQUITY MANAGEMENT, LLC By: Name: Joshua Ross Title: Managing Director BROOKSIDE CAPITAL INVESTORS II, L.P. By: Bain Capital Public Equity Management, LLC, its general partner By: Name: Joshua Ross Title: Managing Director BROOKSIDE CAPITAL TRADING FUND, L.P. By: Brookside Capital Investors II, L.P., its general partner By: Bain Capital Public Equity Management, LLC, its general partner By: Name: Joshua Ross Title: Managing Director The percentage of Common Stock reported owned by the Reporting Persons is based upon 25,619,732 shares of Common Stock outstanding as reported in the Issuer's Quarterly Report on Form 10-Q dated June 30, 2017. The percentage of Common Stock reported owned by the Reporting Persons is based upon 25,619,732 shares of Common Stock outstanding as reported in the Issuer's Quarterly Report on Form 10-Q dated June 30, 2017. The percentage of Common Stock reported owned by the Reporting Persons is based upon 25,619,732 shares of Common Stock outstanding as reported in the Issuer's Quarterly Report on Form 10-Q dated June 30, 2017.48220740_1 48220740_1 48220740_1 48220740_1