<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Version>2.4.0.8</Version><ReportLongName>122 - Disclosure - Subsequent Events</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column FlagID="0"><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><CurrencyCode /><FootnoteIndexer /><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><MCU><KeyName /><CurrencySymbol /><contextRef><ContextID>cx_01_January_2013_TO_30_June_2013</ContextID><EntitySchema>http://www.sec.gov/CIK</EntitySchema><EntityValue>0001162324</EntityValue><PeriodDisplayName /><PeriodType>duration</PeriodType><PeriodStartDate>2013-01-01T00:00:00</PeriodStartDate><PeriodEndDate>2013-06-30T00:00:00</PeriodEndDate><Segments /><Scenarios /></contextRef><UPS /><CurrencyCode /><OriginalCurrencyCode /></MCU><CurrencySymbol /><Labels><Label Key="CalendarSupplement" Id="0" Label="6 Months Ended" /><Label Key="Calendar" Id="1" Label="Jun. 30, 2013" /></Labels></Column></Columns><Rows><Row FlagID="0"><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>4</Level><ElementName>us-gaap_SubsequentEventsTextBlock</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="cx_01_January_2013_TO_30_June_2013" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;table border="0" cellpadding="0" cellspacing="0" style="border-color: black; border-collapse: collapse; font-size: 10pt; font-family: times new roman,times,serif;" width="100%"&gt;
        &lt;tr&gt;
          &lt;td valign="top" width="5%"&gt;16.&lt;/td&gt;
          &lt;td&gt;
            &lt;p align="justify" style="font-family: times new roman,times,serif; font-size: 10pt;margin:inherit;"&gt;Subsequent Events&lt;/p&gt;
          &lt;/td&gt;
        &lt;/tr&gt;
        &lt;tr&gt;
          &lt;td width="5%"&gt;&amp;#160;&lt;/td&gt;
          &lt;td&gt;&amp;#160;&lt;/td&gt;
        &lt;/tr&gt;
        &lt;tr&gt;
          &lt;td width="5%"&gt;&amp;#160;&lt;/td&gt;
          &lt;td&gt;
            &lt;p align="justify" style="font-family: times new roman,times,serif; font-size: 10pt;margin:inherit;"&gt;
              On July 1, 2013, the Company granted
              30,000
              options to acquire
              30,000
              shares of the Company&amp;#8217;s common stock at an exercise price of $1.11
              for
              10
              years. The options vest
              40% upon the date of grant and
              30% upon each of the first and second anniversaries of the grant date.
            &lt;/p&gt;
          &lt;/td&gt;
        &lt;/tr&gt;
        &lt;tr&gt;
          &lt;td width="5%"&gt;&amp;#160;&lt;/td&gt;
          &lt;td&gt;&amp;#160;&lt;/td&gt;
        &lt;/tr&gt;
        &lt;tr&gt;
          &lt;td width="5%"&gt;&amp;#160;&lt;/td&gt;
          &lt;td&gt;
            &lt;p align="justify" style="font-family: times new roman,times,serif; font-size: 10pt;margin:inherit;"&gt;
              On July 9, 2013, the Company granted
              180,000
              options to acquire
              180,000
              shares of the Company&amp;#8217;s common stock at an exercise price of $1.20
              for
              18
              months. The options vest immediately.
            &lt;/p&gt;
          &lt;/td&gt;
        &lt;/tr&gt;
    &lt;/table&gt;
        &lt;table border="0" cellpadding="0" cellspacing="0" style="border-color: black; border-collapse: collapse; font-size: 10pt; font-family: times new roman,times,serif;" width="100%"&gt;
        &lt;tr&gt;
          &lt;td width="5%"&gt;&amp;#160;&lt;/td&gt;
          &lt;td&gt;&amp;#160;&lt;/td&gt;
        &lt;/tr&gt;
        &lt;tr&gt;
          &lt;td width="5%"&gt;&amp;#160;&lt;/td&gt;
          &lt;td&gt;
            &lt;p align="justify" style="font-family: times new roman,times,serif; font-size: 10pt;margin:inherit;"&gt;
              On July 12, 2013, the Company granted
              975,000
              options to acquire
              975,000
              shares of the Company&amp;#8217;s common stock at an exercise price of $1.22
              for
              10
              years. The options vest
              40% upon the date of grant and
              30% upon each of the first and second anniversaries of the grant date.
            &lt;/p&gt;
          &lt;/td&gt;
        &lt;/tr&gt;
    &lt;/table&gt;</NonNumbericText><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>nonnum:textBlockItemType</ElementDataType><SimpleDataType>na</SimpleDataType><ElementDefenition>The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.</ElementDefenition><ElementReferences>No definition available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Subsequent Events [Text Block]</Label></Row></Rows><Footnotes /><IsEquityReport>false</IsEquityReport><ReportName>Subsequent Events</ReportName><MonetaryRoundingLevel>UnKnown</MonetaryRoundingLevel><SharesRoundingLevel>UnKnown</SharesRoundingLevel><PerShareRoundingLevel>UnKnown</PerShareRoundingLevel><ExchangeRateRoundingLevel>UnKnown</ExchangeRateRoundingLevel><HasCustomUnits>true</HasCustomUnits><IsEmbedReport>false</IsEmbedReport><IsMultiCurrency>false</IsMultiCurrency><ReportType>Sheet</ReportType><RoleURI>http://www.uranerz.com/taxonomy/role/NotesToFinancialStatementsSubsequentEventsTextBlock</RoleURI><NumberOfCols>1</NumberOfCols><NumberOfRows>1</NumberOfRows></InstanceReport>
