Deirdre Mahlan | Diageo
Alcoholic beverage maker Diageo’s former finance chief, Deirdre Mahlan, will return to the group as interim CFO on Aug. 18. Mahlan first joined Diageo, the maker of Guinness, Casamigos and Johnnie Walker, in 2002 as part of its North America finance team. She took over as chief financial officer in 2010. After five years in the top finance spot, she was promoted to president of Diageo North America. She retired from the company in July 2020. In early 2023, Mahlan was named CEO and board chairperson of luxury wine producer The Duckhorn Portfolio, a role she held until December 2024. Mahlan replaces Nik Jhangiani, who earlier this month became the company’s interim CEO after Debra Crew stepped down “by mutual agreement.”
Wayne DeVeydt | UnitedHealth Group
UnitedHealth Group appointed Wayne DeVeydt as CFO, effective Sept. 2. The former managing director and operating partner at Bain Capital will replace John Rex, who will transition to strategic adviser to the CEO. Before DeVeydt’s time at Bain, he served as chairman and CEO of Tennessee-based surgical facilities operator Surgery Partners from 2018 through 2020. This isn’t DeVeydt’s first time serving as finance chief of a major insurer; he previously worked as CFO of Anthem from 2007 to 2016. He also worked as a partner at PwC, where he focused on the health care sector. In a news release, outgoing CFO Rex said that DeVeydt’s appointment comes at a “pivotal moment for UnitedHealth Group.”
Costin Corneanu | Amtrak
Costin Corneanu was promoted to chief financial officer of Amtrak, effective Aug. 4. Corneanu joined the national passenger railroad in 2020 and has been deputy CFO since January. He earlier spent eight years at Spirit Airlines, most recently as senior director of FP&A and head of finance, and four years at US Airways, most recently as senior financial analyst operations. Corneanu will succeed Tracie Winbigler, who will remain in her EVP role as chief transformation officer, leading the procurement and real estate teams before retiring on Jan. 1, 2026.
James Maryniak | Everton Football Club
James Maryniak, chief financial officer of Premier League team Everton Football Club, will leave the club next month after the opening of its new Hill Dickinson Stadium in Liverpool. Maryniak joined Everton in 2017 as head of reporting and FP&A and has worked as deputy finance director and financial director. He has been finance chief since December 2023 after holding the role in an interim capacity before that. Before joining Everton, Maryniak was a group accountant at chemicals company Multisol Group and a supervisor at Baker Tilly. He started his career at Grant Thornton UK as an associate.
Adam Aringer | Briggs & Stratton
Lawn mower engine and outdoor power equipment maker Briggs & Stratton appointed Adam Aringer as chief financial officer, effective Aug. 4. Aringer joins the company from building technology solutions manufacturer Johnson Controls, where he was most recently vice president of financial planning and analysis. Before his six years at Johnson Controls, he was a senior controller and corporate development manager at automotive supplier Adient.
Justin Plouffe | Carlyle
Justin Plouffe will become chief financial officer of the global investment firm Carlyle on Jan. 1, 2026. Plouffe has been with the firm for over 18 years and was most recently deputy chief investment officer for Carlyle Global Credit. Before joining Carlyle, he worked as an attorney at Ropes & Gray. He also served as a clerk on the U.S. Court of Appeals for the First Circuit and as a legislative assistant to former U.S. Rep. Tom Allen. He replaces John Redett, who will stay on as CFO through the end of the year. Redett will then become co-president and lead the company’s global private equity business, overseeing corporate private equity and real assets.
Heather Planishek | Tines
Tines, a workflow platform for security and IT teams, appointed Heather Planishek as chief operating and financial officer. Planishek spent over eight years at AI-powered automation software provider Palantir Technologies, where she most recently served as the chief accounting officer. She previously held finance and operational roles at Hewlett Packard Enterprise and Ernst & Young.
Roger Deschenes | Tecogen
Clean energy products manufacturer Tecogen promoted chief accounting officer Roger Deschenes to chief financial officer and treasurer. Before joining Tecogen in March 2021, he was the division CFO of L3 Security, a subsidiary of L3 Harris Technologies. Earlier roles include chief financial officer of Implant Sciences, vice president of finance at Beacon Roofing Supply and chief accounting officer of Saucony.
Jessica McClain | American Staffing Association
Jessica McClain has been named CFO of the American Staffing Association, a 501(c)(6) trade group that represents the interests of the American staffing, recruiting and workforce solutions industry. Previously, McClain was CFO of The Girl Scouts Nation’s Capital for nearly four years, a 501(c)(3) nonprofit and the Washington-D.C. division of Girl Scouts of the USA. Prior to working there, McClain held various roles at Williams, Adley and Company, Grant Thornton, IBM and KPMG.
Allison Milan | Louisiana Tech University Foundation
The Louisiana Tech University Foundation has promoted Allison Milan, who was previously comptroller, to CFO. The foundation is a 501(c)(3) public charity and exists to secure private gifts, engage donors and manage real estate and fundraising efforts the university cannot directly pursue due to regulatory restrictions. Milan joined the foundation in 2022 as director of accounting. Her background includes accounting roles at Origin Bank and KPMG. She is also an alumni of the university, earning both her undergraduate and master’s degrees there.
