the company name to Workhorse Group Incorporated. 2010s Move to Lisle, Illinois In September 2010, despite uncertainty over EGR and a sluggish economy, Navistar leadership revived an effort to relocate the company headquarters from Warrenville, IL, to nearby Lisle, IL. The new headquarters was expected to retain or create 3,000 permanent jobs and about 400 construction jobs. Navistar President Dan Ustian said roughly 500 engineers would be hired immediately. Navistar aimed to invest $110 million in the 1.2 million-square-foot Lisle campus, which would include product development. The state gave Navistar incentives of nearly $65 million, including tax credits. In March 2011, Navistar announced the move to Lisle. Renovations were completed in the fall, but the company gradually moved from Warrenville to Lisle in summer 2011. "You can't build a campus like this anywhere for anywhere near the price we paid for this, and even though you might get more incentives, when you look at the whole picture, you really can't beat it," said Don Sharp, Navistar vice president. In 2011, Navistar began phasing out its Truck Development and Technology Center (TDTC) in Fort Wayne, Indiana. In early December 2011, the company laid off 130 employees, mostly engineers and designers who were United Auto Workers members. In total, 300 out of 1,400 Fort Wayne employees eventually accepted offers to relocate to Illinois. The other 1,100 workers either retired or chose to remain in Indiana and find work elsewhere. The cost to move employees and consolidate operations was estimated to be $75 million. The only Navistar employees remaining after December 2012 were 20-25 people manning the company's test track on Oxford Street. In late July 2015, the TDTC closed and the remaining workers were let go. Tension mounts In June 2012, speculation mounted about a possible takeover of the struggling truck maker. This came as hedge fund MHR Fund Management LLC disclosed a 13.6% stake in the company, slightly higher than billionaire activist investor Carl Icahn's 11.9% stake. As a result, Navistar adopted a poison pill defense. If the plan were triggered by an outside investor taking a stake of 15 percent or more in the company, then Navistar would issue its shareholders rights that would let them buy new common stock in the company at a discount of 50 percent: For each share held, the investor could buy $280 worth of new shares for $140. The investor who took the 15