Wheaton Precious Metals Closes $4.3 Billion Silver Stream Acquisition with BHP on Antamina Mine
WPM sits 91% above its 52-week low of $68.03.
Summary
Wheaton Precious Metals announced the completion of its previously disclosed silver stream transaction with BHP for the Antamina Mine, involving an upfront payment of US$4.3 billion.
Key Events · M&A and Partnerships · WPM
-
Silver Stream Transaction Completed
Wheaton Precious Metals International Ltd. (WPMI) has completed the previously announced silver stream transaction with a wholly-owned subsidiary of BHP Group Limited regarding the Antamina Mine in Peru.
-
US$4.3 Billion Upfront Payment Made
WPMI has made the upfront payment of US$4.3 billion as part of the Precious Metals Purchase Agreement.
-
Long-Term Silver Stream Secured
WPMI will purchase 33.75% of payable silver from the Antamina mine until 100 million ounces are delivered, then 22.5% for the life of the mine, with ongoing payments of 20% of the spot price of silver.
Analysis · WPM · Energy & Transportation
This filing confirms the completion of a highly significant strategic acquisition for Wheaton Precious Metals. The US$4.3 billion upfront payment secures a substantial silver stream from BHP's Antamina Mine, a long-life asset. This transaction is expected to significantly enhance Wheaton's long-term silver production profile, diversify its asset portfolio, and reinforce its position as a premier precious metals streaming company. Investors should view this as a major growth initiative that solidifies future revenue streams.
How filings like this one have moved
In the 30 days to Oct 3, 2026, 41% of the 327 measured filings Wiseek scored 9 moved their stock by 5% or more by the next session's close. The median move was -0.30%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, WPM was trading at $130.09 on NYSE in the Energy & Transportation sector, with a market capitalization of approximately $62.1B. The 52-week trading range was $68.03 to $165.76. This filing was assessed with positive market sentiment and an importance score of 9 out of 10.