Sierra Metals (SMT) Insider Trading & Ownership C$1.14 0.00 (0.00%) As of 08/7/2025 Add Compare Share Share Insider Trades Stock AnalysisChartCompetitorsEarningsHeadlinesInsider TradesBuy This Stock Sierra Metals (TSE:SMT) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage2.86%Number OfInsiders Buying(Last 12 Months)1Amount OfInsider Buying(Last 12 Months)C$23.84KNumber OfInsiders Selling(Last 12 Months)9Amount OfInsider Selling(Last 12 Months)C$5.01M Get SMT Insider Trade Alerts Want to know when executives and insiders are buying or selling Sierra Metals stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. 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SMT Insider Buying and Selling by Quarter Sierra Metals Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame Start Date End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails5/20/2025Ernesto BalarezoDirectorSell550,000C$1.14C$627,000.005/20/2025Patricia Munoz KosaSenior OfficerSell383,098C$1.15C$440,562.705/19/2025Claudio Zavaleta CubillasSenior OfficerSell682,814C$1.13C$774,311.085/16/2025Alberto San Roman CalleSenior OfficerSell470,338C$1.13C$531,481.945/16/2025Jose Noel Gomez MeneraSenior OfficerSell481,988C$1.12C$538,766.195/16/2025Luis Enrique RojasSenior OfficerSell80,365C$0.11C$8,983.205/13/2025Astolfo Romero SanchezSenior OfficerSell133,916C$1.15C$154,003.405/13/2025Rajesh VyasSenior OfficerSell267,800C$1.15C$306,631.004/29/2025J. Alberto AriasDirectorSell47,315C$1.10C$51,876.644/22/2025J. Alberto AriasDirectorSell141,945C$0.87C$124,103.93 Get Insider Trades Delivered To Your InboxEnter your email address below to receive a concise daily summary of insider buying activity, insider selling activity and changes in hedge fund holdings. 3/27/2025J. Alberto AriasDirectorSell80,436C$0.84C$67,643.463/18/2025J. Alberto AriasDirectorSell47,315C$0.84C$39,757.283/12/2025J. Alberto AriasDirectorSell141,472C$0.77C$108,602.962/26/2025J. Alberto AriasDirectorSell18,926C$0.84C$15,848.782/24/2025J. Alberto AriasDirectorSell28,389C$0.84C$23,743.992/11/2025J. Alberto AriasDirectorSell35,486C$0.92C$32,684.841/30/2025J. Alberto AriasDirectorSell189,260C$0.92C$174,967.081/27/2025J. Alberto AriasDirectorSell161,818C$0.90C$145,636.201/14/2025J. Alberto AriasDirectorSell47,315C$1.20C$56,943.6012/30/2024J. Alberto AriasDirectorSell120,180C$0.84C$101,239.6312/27/2024J. Alberto AriasDirectorSell7,570C$0.84C$6,322.4612/20/2024J. Alberto AriasDirectorSell85,167C$0.85C$72,063.5512/13/2024J. Alberto AriasDirectorSell88,952C$0.76C$67,753.6712/6/2024J. Alberto AriasDirectorSell94,630C$0.72C$68,517.6111/22/2024J. Alberto AriasDirectorSell83,748C$0.69C$57,697.3511/18/2024J. Alberto AriasDirectorSell75,704C$0.67C$50,364.3611/14/2024Ernesto BalarezoDirectorBuy20,600C$0.67C$13,715.6911/12/2024J. Alberto AriasDirectorSell18,926C$0.76C$14,340.0211/6/2024J. Alberto AriasDirectorSell5,205C$0.81C$4,224.2610/25/2024J. Alberto AriasDirectorSell47,315C$0.93C$43,998.6910/22/2024J. Alberto AriasDirectorSell94,630C$0.90C$85,483.8210/10/2024J. Alberto AriasDirectorSell47,315C$0.84C$39,914.6510/7/2024J. Alberto AriasDirectorSell85,167C$0.81C$68,754.989/27/2024J. Alberto AriasDirectorSell18,926C$0.56C$10,534.219/20/2024J. Alberto AriasDirectorSell133,902C$0.70C$93,475.389/4/2024Ernesto BalarezoDirectorBuy15,000C$0.68C$10,125.00 (Data available from 1/1/2013 forward) SMT Insider Trading Activity - Frequently Asked Questions Who is on Sierra Metals' Insider Roster? The list of insiders at Sierra Metals includes Alberto San Roman Calle, Astolfo Romero Sanchez, Claudio Zavaleta Cubillas, Ernesto Balarezo, J. Alberto Arias, Jose Noel Gomez Menera, Luis Enrique Rojas, Miguel Aramburu, Patricia Munoz Kosa, and Rajesh Vyas. Learn more on insiders at SMT. What percentage of Sierra Metals stock is owned by insiders? 2.86% of Sierra Metals stock is owned by insiders. Learn more on SMT's insider holdings. Which Sierra Metals insiders have been buying company stock? The following insiders have purchased SMT shares in the last 24 months: Ernesto Balarezo (C$23,840.69), Miguel Aramburu (C$24,000.00), and Patricia Munoz Kosa (C$6,825.00). How much insider buying is happening at Sierra Metals? Insiders have purchased a total of 96,100 SMT shares in the last 24 months for a total of C$54,665.69 bought. Which Sierra Metals insiders have been selling company stock? The following insiders have sold SMT shares in the last 24 months: Alberto San Roman Calle (C$531,481.94), Astolfo Romero Sanchez (C$154,003.40), Claudio Zavaleta Cubillas (C$774,311.08), Ernesto Balarezo (C$627,000.00), J. Alberto Arias (C$2,599,633.13), Jose Noel Gomez Menera (C$538,766.19), Luis Enrique Rojas (C$8,983.20), Patricia Munoz Kosa (C$440,562.70), and Rajesh Vyas (C$306,631.00). How much insider selling is happening at Sierra Metals? Insiders have sold a total of 6,659,344 Sierra Metals shares in the last 24 months for a total of C$5,981,372.64 sold. Sierra Metals Key ExecutivesMr. Ernesto Balarezo Valdéz M.Sc. (Age 57)CEO & Director Compensation: $1.06MMr. Rajesh Vyas CPAVice President of Corporate Controller1 recent tradesMr. Jose Fernandez-Baca LlamosasChief Financial OfficerMr. Carlos Garcia RosalesVice President of TechnicalMr. Jean Pierre Fort Del RioManager of Business Development & Investor RelationsMs. Patricia Kosa MunozVice President of LegalMr. Alberto CalleVice President of Human Resources More Insider Trading Tools from MarketBeat Related Companies Northern Dynasty Minerals Insider Buying Lithium Americas Insider Buying Nouveau Monde Graphite Insider Buying Fireweed Metals Insider Buying Freegold Ventures Insider Buying EMX Royalty Insider Buying Teck Resources Insider Buying Erdene Resource Development Insider Buying Western Copper and Gold Insider Buying Santacruz Silver Mining Insider Buying Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles Costco Faces Downgrades, Death Cross, Insider SellingReynolds Consumer Products Stock Price: Insiders Signal a BottomBuy, Sell, or Hold? Insiders Pile Into These 3 Healthcare StocksInsiders Trade Millions in NVIDIA-Linked Navitas, Hims, & Shift45 Stocks Insiders Are Selling That Analysts Say Buy This page (TSE:SMT) was last updated on 8/29/2025 by MarketBeat.com Staff From Our PartnersMusk’s Project Colossus could mint millionairesI predict this single breakthrough could make Elon the world’s first trillionaire — and mint more new milliona...Brownstone Research | SponsoredINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredBONUS GUIDE - Ben Stein Prepares For the Next Financial CrisisWith inflation high, debt soaring, and global tensions rising, a financial storm may be brewing. 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