William Mastoris net worth and biography

William Mastoris Biography and Net Worth

William Mastoris was named executive vice president — customer service and operations in December 2021.

In this role, Mastoris oversees Wisconsin Field Operations and System Operations, Electric Distribution Asset Management, Customer Operations Support, Fleet Services, Real Estate Services, Economic Development, and Wispark.

Mastoris previously served as vice president — supply chain and fleet for WEC Energy Group since June 2015.

Mastoris joined Wisconsin Electric in 1992 as a specialist — quality assurance and process improvement at Point Beach Nuclear Plant. In 1996, he became the operations manager for the Customer Contact Center and was subsequently named director —customer contact centers for We Energies in 2002. In 2008, he became director — system operations, and in 2011, he was appointed director — electric distribution asset management. He was appointed to vice president — supply chain when WEC Energy Group was formed in 2015.

Under Mastoris’ leadership, the We Energies Customer Contact Center was recognized in 1996 with the Eagle Award for Customer Service from the American Gas Association and Edison Electric Institute. In 1997 and 2000, Call Center Magazine recognized the Customer Contact Center as the Best Utility Call Center. Under his leadership in System Operations and Electric Distribution Asset Management, We Energies received the ReliabilityOne award for superior electric reliability in the Midwest in 2008, 2010, 2011, 2012, 2013 and 2014, as well as the national ReliabilityOne award in 2013.

Mastoris holds a Bachelor of Science degree in economics and mathematical methods in the social sciences from Northwestern University. He served in the U.S. Navy and qualified as an engineer officer with naval reactors. He retired from the Naval Reserves in 2001 with the rank of commander.

Mastoris is current chairman of the board of the Milwaukee Regional Innovation Center (MRIC). He has served on the MRIC board since 2016, and also serves as chairman of its executive, investment, and project and architectural review committees.

What is William Mastoris' net worth?

The estimated net worth of William Mastoris is at least $248,444.84 as of August 12th, 2022. Mr. Mastoris owns 2,506 shares of WEC Energy Group stock worth more than $248,445 as of December 1st. This net worth evaluation does not reflect any other assets that Mr. Mastoris may own. Learn More about William Mastoris' net worth.

How old is William Mastoris?

Mr. Mastoris is currently 58 years old. There are 8 older executives and no younger executives at WEC Energy Group. The oldest executive at WEC Energy Group is Mr. Gale E. Klappa, Exec. Chairman, who is 71 years old. Learn More on William Mastoris' age.

How do I contact William Mastoris?

The corporate mailing address for Mr. Mastoris and other WEC Energy Group executives is 231 WEST MICHIGAN STREET P O BOX 1331, MILWAUKEE WI, 53201. WEC Energy Group can also be reached via phone at (414) 221-2345 and via email at [email protected] Learn More on William Mastoris' contact information.

Has William Mastoris been buying or selling shares of WEC Energy Group?

William Mastoris has not been actively trading shares of WEC Energy Group within the last three months. Most recently, William Mastoris sold 4,690 shares of the business's stock in a transaction on Friday, August 12th. The shares were sold at an average price of $105.04, for a transaction totalling $492,637.60. Following the completion of the sale, the executive vice president now directly owns 2,506 shares of the company's stock, valued at $263,230.24. Learn More on William Mastoris' trading history.

Who are WEC Energy Group's active insiders?

WEC Energy Group's insider roster includes Joshua Erickson (VP), Robert Garvin (EVP), Gale Klappa (Chairman), Thomas Lane (Director), Scott Lauber (CFO), William Mastoris (EVP), Charles Matthews (CEO), Tom Metcalfe (Insider), Molly Mulroy (EVP), Ulice Payne, Jr. (Director), Anthony Reese (VP), James Schubilske (VP), and Mary Straka (VP). Learn More on WEC Energy Group's active insiders.

Are insiders buying or selling shares of WEC Energy Group?

During the last twelve months, WEC Energy Group insiders bought shares 1 times. They purchased a total of 1,000 shares worth more than $91,390.00. During the last twelve months, insiders at the utilities provider sold shares 8 times. They sold a total of 55,611 shares worth more than $5,788,625.73. The most recent insider tranaction occured on November, 28th when Director Ulice Payne Jr sold 950 shares worth more than $92,710.50. Insiders at WEC Energy Group own 0.3 % of the company. Learn More about insider trades at WEC Energy Group.

Information on this page was last updated on 11/28/2022.

William Mastoris Insider Trading History at WEC Energy Group

Transaction DateBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
8/12/2022Sell4,690$105.04$492,637.602,506View SEC Filing Icon  
See Full Table

William Mastoris Buying and Selling Activity at WEC Energy Group

This chart shows William Mastoris's buying and selling at WEC Energy Group by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

WEC Energy Group Company Overview

WEC Energy Group logo
WEC Energy Group, Inc., through its subsidiaries, provides regulated natural gas and electricity, and renewable and nonregulated renewable energy services in the United States. The company operates through six segments: Wisconsin, Illinois, Other States, Electric Transmission, Non-Utility Energy Infrastructure, and Corporate and Other. It generates and distributes electricity from coal, natural gas, oil, hydroelectric, wind, solar, and biomass sources; provides electric transmission services; offers retail natural gas distribution services; transports natural gas; and generates, distributes, and sells steam. As of December 31, 2021, it operated approximately 35,800 miles of overhead distribution lines and 35,600 miles of underground distribution cables, as well as 440 electric distribution substations and 510,500 line transformers; 50,900 miles of natural gas distribution mains; 1,200 miles of natural gas transmission mains; 2.3 million natural gas lateral services; 500 natural gas distribution and transmission gate stations; and 68.2 billion cubic feet of working gas capacities in underground natural gas storage fields. The company was formerly known as Wisconsin Energy Corporation and changed its name to WEC Energy Group, Inc. in June 2015. WEC Energy Group, Inc. was incorporated in 1981 and is headquartered in Milwaukee, Wisconsin.
Read More

Today's Range

Now: $100.08
Low: $99.15
High: $101.11

50 Day Range

MA: $91.61
Low: $82.23
High: $100.15

2 Week Range

Now: $100.08
Low: $80.82
High: $108.39


37,399 shs

Average Volume

1,352,827 shs

Market Capitalization

$31.57 billion

P/E Ratio


Dividend Yield