Diane K. Duren

Companies

• Werner EnterprisesBoard member May 11, 2017 to now¹
• U.S. SILICA HOLDINGS, INC.Board member Aug 17, 2017 to Aug 1, 2024²
• Union Pacific CorporationEVP & Corporate Secretary Mar 1, 2013 to Nov 21, 2016³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Union Pacific Corporation UNP140,464 shares⁴$40.6M at $288.72Nov 21, 2016
• Werner Enterprises WERN30,007 shares⁵$910.4K at $30.34May 12, 2026
• USU.S. SILICA HOLDINGS, INC.0 shares⁶Jul 31, 2024

As of each latest filing. The line shows shares held over time.

Recent filings

• May 12, 2026Granted 3,025 shares of Werner Enterprises⁵
• May 13, 2025Granted 3,706 shares of Werner Enterprises⁷
• Jul 31, 2024Returned to company 9,677 shares at $15.50 of U.S. SILICA HOLDINGS, INC.⁶
• Jul 31, 2024Returned to company 93,350 shares at $15.50 of U.S. SILICA HOLDINGS, INC.⁶
• May 14, 2024Granted 2,739 shares of Werner Enterprises⁸
• May 9, 2024Granted 9,677 shares of U.S. SILICA HOLDINGS, INC.⁹
• May 11, 2023Granted 12,077 shares of U.S. SILICA HOLDINGS, INC.¹⁰
• May 9, 2023Granted 2,274 shares of Werner Enterprises¹¹
• Dec 16, 2022Sold 16,089 shares at $11.43 of U.S. SILICA HOLDINGS, INC.¹²
• May 12, 2022Granted 7,467 shares of U.S. SILICA HOLDINGS, INC.¹³
• May 10, 2022Granted 2,410 shares of Werner Enterprises¹⁴
• Nov 18, 2016Sold 2,840 shares at $98.98 of Union Pacific Corporation⁴
• Jun 3, 2016Sold 2,500 shares at $85.46 of Union Pacific Corporation¹⁵
• Feb 7, 2016Shares withheld for tax 5,544 shares at $75.03 of Union Pacific Corporation¹⁶
• Feb 4, 2016Granted 15,894 shares of Union Pacific Corporation¹⁶
• Feb 4, 2016Granted 3,973 shares of Union Pacific Corporation¹⁶
• Feb 2, 2016Other 1,777 shares at $71.71 of Union Pacific Corporation¹⁷
• Feb 2, 2016Other 1,777 shares of Union Pacific Corporation¹⁷
• Feb 2, 2016Shares withheld for tax 141 shares at $71.71 of Union Pacific Corporation¹⁷
• Nov 17, 2015Gift 2,376 shares of Union Pacific Corporation¹⁸
• May 22, 2015Sold 15,500 shares at $104.39 of Union Pacific Corporation¹⁹
• Feb 5, 2015Shares withheld for tax 3,756 shares at $122.85 of Union Pacific Corporation²⁰
• Feb 5, 2015Granted 10,098 shares of Union Pacific Corporation²⁰
• Feb 5, 2015Granted 2,524 shares of Union Pacific Corporation²⁰
• Feb 3, 2015Shares withheld for tax 764 shares at $121.79 of Union Pacific Corporation²¹