ITEM 4. MINE SAFETy DISCloSurES ITEM 5. MArkET For rEgISTrANT’S CoMMoN EquITy, rElATED SToCkholDEr MATTErS AND ISSuEr purChASES oF EquITy  SECurITIES PART II Fourth Third Second First Quarter Quarter Quarter Quarter 2012 – High $ 6.81 $ 6.94 $ 4.96 $ 5.99 – Low $ 5.25 $ 4.14 $ 3.70 $ 4.25 2011 – High $ 7.00 $ 8.65 $ 9.95 $ 11.56 – Low $ 4.82 $ 5.32 $ 6.87 $ 7.81 The information concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and  Consumer Protection Act and Item 104 of Regulation S-K is included in exhibit 95 to this Annual Report. Shares of our common stock are traded on the New York Stock Exchange, Inc., where it trades under the symbol “HL.” As of February 21, 2013,  there were 6,573 shareholders of record of our common stock. Our common stock quarterly high and low sale prices for the past two years were as  follows: Quarterly dividends were paid on our Series B Preferred Stock for 2011 and 2012, and no dividends are in arrears. The final quarterly dividend on our  6.5% Mandatory Convertible Preferred Stock for the fourth quarter of 2010 was paid in January 2011, and no dividends are in arrears. All outstanding  shares of our 6.5% Mandatory Convertible Preferred Stock converted to common stock on January 1, 2011.  In September 2011 and February 2012, our Board of Directors adopted a common stock dividend policy that has two components: (1) a dividend  that links the amount of dividends on our common stock to our average quarterly realized silver price in the preceding quarter, and (2) a minimum  annual dividend of $0.01 per share of common stock, in each case, payable quarterly, when declared. See  Note 9  of  Notes to Consolidated Financial  Statements  for more information on potential dividend amounts under the first component of the policy at various silver prices. The following table  summarizes the common stock dividends declared by our Board of Directors under the policy described above: (A) (B) (A+B) Silver- Minimum Total  price-linked  annual Total dividend  component   component  dividend amount Declaration date per share per share per share  (in millions) Month of payment  November 8, 2011  $ 0.02 $ 0 $ 0.02 $ 5.6 December 2011 February 17, 2012  $ 0.01 $ 0.0025 $ 0.0125 $ 3.6 March 2012 May 8, 2012 $ 0.02 $ 0.0025 $ 0.0225 $ 6.4  June 2012 August 7, 2012 $ — $ 0.0025 $ 0.0025 $ 0.7 September 2012 November 2, 2012  $ 0.02 $ 0.0025 $ 0.0225 $ 6.4 December 2012 February 25, 2013  $ — $ 0.0025 $ 0.0025 $ 0.7 anticipated in March 2013 Because the average realized silver price for the second and fourth quarters of 2012 was $27.05 and $29.20 per ounce, respectively, below the  minimum threshold of $30 according to the policy, no silver-price-linked component was declared or paid. However, on February 25, 2013, our Board of  Directors declared a special common stock dividend of $0.01 per share, in addition to the minimum dividend of $0.0025 per share, for an aggregate  dividend of $3.6 million. Once declared, it is payable in March 2013. Prior to 2011, no dividends had been declared on our common stock since 1990.  We cannot pay dividends on our common stock if we fail to pay dividends on our Series B Preferred Stock. The declaration and payment of common  stock dividends, whether pursuant to the policy or in addition thereto, is at the sole discretion of our Board of Directors, and there can be no assurance  that we will continue to declare and pay common stock dividends in the future. The following table provides information as of December 31, 2012 regarding our compensation plans under which equity securities are authorized  for issuance: Number of Securities  Number of To Be Issued  Securities Remaining Upon Exercise of  Weighted-Average  Available For Future Outstanding Options, Exercise Price of  Issuance Under Equity Equity Compensation Plans Approved by Security Holders:  Warrants and Rights  Outstanding Options Compensation Plans  2010 Stock Incentive Plan  —  N/A  19,605,740  1995 Stock Incentive Plan  938,408  6.23  —  Stock Plan for Non-employee Directors  —  N/A  622,685  Key Employee Deferred Compensation Plan  —  N/A  1,325,012  Total 938,408  6.23  21,553,437  See  Note 8  and  Note 9  of  Notes to Consolidated Financial Statements  for information regarding the above plans. We did not issue any unregistered securities in 2012. On December 12, 2011, we issued 5,395,683 unregistered shares of common stock to the  various parties listed in the Purchase and Sale Agreement filed as exhibit 10.1 to our Current Report on Form 8-K filed on December 13, 2011. The  shares were not registered under the Securities Act of 1933 in reliance on Section 4(2) of such Act and Regulation D thereunder, as transactions by an  18 [ HL:10-K ] 