UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-PX ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT INVESTMENT COMPANY INVESTMENT COMPANY ACT FILE NUMBER: 811-22492 NAME OF REGISTRANT: MainGate Trust ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 6075 Poplar Ave., Suite 720 Memphis, TN 38119 NAME AND ADDRESS OF AGENT FOR SERVICE: Geoffrey Mavar MainGate Trust 6075 Poplar Ave., Suite 720 Memphis, TN 38119 REGISTRANT'S TELEPHONE NUMBER: (901) 537-1866 DATE OF FISCAL YEAR END: 11/30 DATE OF REPORTING PERIOD: 07/01/2016 - 06/30/2017 MainGate MLP Fund -------------------------------------------------------------------------------------------------------------------------- BUCKEYE PARTNERS, L.P. Agenda Number: 934603653 -------------------------------------------------------------------------------------------------------------------------- Security: 118230101 Meeting Type: Annual Meeting Date: 06-Jun-2017 Ticker: BPL ISIN: US1182301010 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. DIRECTOR BARBARA J. DUGANIER Mgmt For For JOSEPH A. LASALA, JR. Mgmt For For LARRY C. PAYNE Mgmt For For MARTIN A. WHITE Mgmt For For 2. THE APPROVAL OF THE AMENDMENTS TO THE Mgmt For For BUCKEYE PARTNERS, L.P. 2013 LONG-TERM INCENTIVE PLAN, AS DESCRIBED IN OUR PROXY STATEMENT. 3. THE RATIFICATION OF THE SELECTION OF Mgmt For For DELOITTE & TOUCHE LLP AS BUCKEYE PARTNERS, L.P.'S INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS FOR 2017. 4. THE APPROVAL, IN AN ADVISORY VOTE, OF THE Mgmt For For COMPENSATION OF BUCKEYE'S NAMED EXECUTIVE OFFICERS AS DESCRIBED IN OUR PROXY STATEMENT PURSUANT TO ITEM 402 OF REGULATION S-K. 5. THE VOTE, ON AN ADVISORY BASIS, ON THE Mgmt 2 Years Against FREQUENCY OF THE ADVISORY VOTE ON THE COMPENSATION OF THE NAMED EXECUTIVE OFFICERS. -------------------------------------------------------------------------------------------------------------------------- MAGELLAN MIDSTREAM PARTNERS,L.P. Agenda Number: 934535139 -------------------------------------------------------------------------------------------------------------------------- Security: 559080106 Meeting Type: Annual Meeting Date: 20-Apr-2017 Ticker: MMP ISIN: US5590801065 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. DIRECTOR LORI A. GOBILLOT Mgmt For For EDWARD J. GUAY Mgmt For For MICHAEL N. MEARS Mgmt For For JAMES R. MONTAGUE Mgmt For For 2. ADVISORY RESOLUTION TO APPROVE EXECUTIVE Mgmt For For COMPENSATION 3. ADVISORY RESOLUTION TO APPROVE EXECUTIVE Mgmt 2 Years Against COMPENSATION VOTE FREQUENCY 4. RATIFICATION OF APPOINTMENT OF INDEPENDENT Mgmt For For AUDITOR -------------------------------------------------------------------------------------------------------------------------- PLAINS GP HOLDINGS, L.P. Agenda Number: 934489659 -------------------------------------------------------------------------------------------------------------------------- Security: 72651A108 Meeting Type: Special Meeting Date: 15-Nov-2016 Ticker: PAGP ISIN: US72651A1088 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. PROPOSAL TO APPROVE THE SIMPLIFICATION Mgmt For For AGREEMENT, DATED AS OF JULY 11, 2016, BY AND AMONG PLAINS GP HOLDINGS, L.P., PAA GP HOLDINGS LLC, PLAINS AAP, L.P., PLAINS ALL AMERICAN GP LLC, PLAINS ALL AMERICAN PIPELINE, L.P., AND PAA GP LLC, AND THE TRANSACTIONS CONTEMPLATED BY THE SIMPLIFICATION AGREEMENT. 2. PROPOSAL TO APPROVE THE ADJOURNMENT OF THE Mgmt For For SPECIAL MEETING TO A LATER DATE OR DATES, AT THE DISCRETION OF OUR GENERAL PARTNER, TO SOLICIT ADDITIONAL PROXIES TO APPROVE THE SIMPLIFICATION PROPOSAL. -------------------------------------------------------------------------------------------------------------------------- SEMGROUP CORPORATION Agenda Number: 934476018 -------------------------------------------------------------------------------------------------------------------------- Security: 81663A105 Meeting Type: Special Meeting Date: 29-Sep-2016 Ticker: SEMG ISIN: US81663A1051 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. TO APPROVE THE ISSUANCE OF CLASS A COMMON Mgmt For For STOCK PURSUANT TO THE TERMS OF THE MERGER AGREEMENT IN CONNECTION WITH THE MERGER. 2. TO APPROVE THE ADJOURNMENT OF THE SEMGROUP Mgmt For For SPECIAL MEETING, FROM TIME TO TIME, IF NECESSARY OR APPROPRIATE TO SOLICIT ADDITIONAL PROXIES. -------------------------------------------------------------------------------------------------------------------------- SEMGROUP CORPORATION Agenda Number: 934594664 -------------------------------------------------------------------------------------------------------------------------- Security: 81663A105 Meeting Type: Annual Meeting Date: 17-May-2017 Ticker: SEMG ISIN: US81663A1051 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1. DIRECTOR RONALD A. BALLSCHMIEDE Mgmt For For SARAH M. BARPOULIS Mgmt For For CARLIN G. CONNER Mgmt For For KARL F. KURZ Mgmt For For JAMES H. LYTAL Mgmt For For WILLIAM J. MCADAM Mgmt For For THOMAS R. MCDANIEL Mgmt For For 2. TO APPROVE, ON A NON-BINDING ADVISORY Mgmt For For BASIS, THE COMPENSATION OF THE COMPANY'S NAMED EXECUTIVE OFFICERS. 3. TO SELECT, ON A NON-BINDING ADVISORY BASIS, Mgmt 2 Years Against THE FREQUENCY OF FUTURE STOCKHOLDER ADVISORY VOTES ON THE COMPENSATION OF THE COMPANY'S NAMED EXECUTIVE OFFICERS. 4. RATIFICATION OF GRANT THORNTON LLP AS Mgmt For For INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM FOR 2017. 5. TO APPROVE AN AMENDMENT TO THE COMPANY'S Mgmt For For AMENDED AND RESTATED CERTIFICATE OF INCORPORATION TO AUTHORIZE 4,000,000 SHARES OF PREFERRED STOCK. -------------------------------------------------------------------------------------------------------------------------- TARGA RESOURCES CORP. Agenda Number: 934581996 -------------------------------------------------------------------------------------------------------------------------- Security: 87612G101 Meeting Type: Annual Meeting Date: 22-May-2017 Ticker: TRGP ISIN: US87612G1013 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1A. ELECTION OF DIRECTOR: CHARLES R. CRISP Mgmt For For 1B. ELECTION OF DIRECTOR: LAURA C. FULTON Mgmt For For 1C. ELECTION OF DIRECTOR: MICHAEL A. HEIM Mgmt For For 1D. ELECTION OF DIRECTOR: JAMES. W. WHALEN Mgmt For For 2. RATIFICATION OF SELECTION OF INDEPENDENT Mgmt For For ACCOUNTANTS 3. ADVISORY VOTE ON EXECUTIVE COMPENSATION Mgmt For For 4. ADVISORY VOTE ON THE FREQUENCY OF THE Mgmt 2 Years Against ADVISORY VOTE ON EXECUTIVE COMPENSATION 5. ADOPTION OF THE AMENDED AND RESTATED TARGA Mgmt For For RESOURCES CORP. 2010 STOCK INCENTIVE PLAN 6. ISSUANCE OF SHARES OF COMMON STOCK UPON Mgmt For For CONVERSION OF SERIES A PREFERRED STOCK AND EXERCISE OF WARRANTS -------------------------------------------------------------------------------------------------------------------------- THE WILLIAMS COMPANIES, INC. Agenda Number: 934492579 -------------------------------------------------------------------------------------------------------------------------- Security: 969457100 Meeting Type: Annual Meeting Date: 23-Nov-2016 Ticker: WMB ISIN: US9694571004 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1A. ELECTION OF DIRECTOR: ALAN S. ARMSTRONG Mgmt For For 1B. ELECTION OF DIRECTOR: STEPHEN W. BERGSTROM Mgmt For For 1C. ELECTION OF DIRECTOR: STEPHEN I. CHAZEN Mgmt For For 1D. ELECTION OF DIRECTOR: KATHLEEN B. COOPER Mgmt For For 1E. ELECTION OF DIRECTOR: PETER A. RAGAUSS Mgmt For For 1F. ELECTION OF DIRECTOR: SCOTT D. SHEFFIELD Mgmt For For 1G. ELECTION OF DIRECTOR: MURRAY D. SMITH Mgmt For For 1H. ELECTION OF DIRECTOR: WILLIAM H. SPENCE Mgmt For For 1I. ELECTION OF DIRECTOR: JANICE D. STONEY Mgmt For For 2. RATIFICATION OF ERNST & YOUNG LLP AS Mgmt For For AUDITORS FOR 2016. 3. APPROVAL, BY NONBINDING ADVISORY VOTE, OF Mgmt For For THE COMPANY'S EXECUTIVE COMPENSATION. -------------------------------------------------------------------------------------------------------------------------- THE WILLIAMS COMPANIES, INC. Agenda Number: 934580259 -------------------------------------------------------------------------------------------------------------------------- Security: 969457100 Meeting Type: Annual Meeting Date: 18-May-2017 Ticker: WMB ISIN: US9694571004 -------------------------------------------------------------------------------------------------------------------------- Prop.# Proposal Proposal Proposal Vote For/Against Type Management 1A. ELECTION OF DIRECTOR: ALAN S. ARMSTRONG Mgmt For For 1B. ELECTION OF DIRECTOR: STEPHEN W. BERGSTROM Mgmt For For 1C. ELECTION OF DIRECTOR: STEPHEN I. CHAZEN Mgmt For For 1D. ELECTION OF DIRECTOR: CHARLES I. COGUT Mgmt For For 1E. ELECTION OF DIRECTOR: KATHLEEN B. COOPER Mgmt For For 1F. ELECTION OF DIRECTOR: MICHAEL A. CREEL Mgmt For For 1G. ELECTION OF DIRECTOR: PETER A. RAGAUSS Mgmt For For 1H. ELECTION OF DIRECTOR: SCOTT D. SHEFFIELD Mgmt For For 1I. ELECTION OF DIRECTOR: MURRAY D. SMITH Mgmt For For 1J. ELECTION OF DIRECTOR: WILLIAM H. SPENCE Mgmt For For 1K. ELECTION OF DIRECTOR: JANICE D. STONEY Mgmt For For 2. RATIFICATION OF ERNST & YOUNG LLP AS Mgmt For For AUDITORS FOR 2017. 3. APPROVAL, BY NONBINDING ADVISORY VOTE, OF Mgmt For For THE COMPANY'S EXECUTIVE COMPENSATION 4. AN ADVISORY VOTE ON THE FREQUENCY OF Mgmt 2 Years Against HOLDING AN ADVISORY VOTE ON EXECUTIVE COMPENSATION * Management position unknown SIGNATURES Pursuant to the requirements of the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) MainGate Trust By (Signature) /s/ Matthew G. Mead Name Matthew G. Mead Title President Date 07/26/2017