Fortune 500 Power MovesPeter Griffith, CFO of Amgen (
No. 134), who has served as the company's EVP and CFO since 2020, is retiring.
Thomas Dittrich will return to Amgen as EVP on July 1 and succeed Griffith as CFO, effective Sept. 1. Dittrich, who previously held senior finance roles at Amgen, brings more than 30 years of experience. Most recently, he served as CFO of Galderma. Before that, he was the CFO at both Shire and Sulzer. Griffith will remain with the company into January 2027 for a transition period.
Every Friday morning, the weekly Fortune 500 Power Moves column tracks Fortune 500 company C-suite shifts—see the most recent edition.More notable moves this week:Carrie L. Anderson was appointed EVP and CFO of
A.O. Smith Corporation (NYSE: AOS), a water heating and treatment company, effective July 1. She succeeds Charles T. Lauber, who is retiring but will stay through Sept. 30 to transition the role. Anderson most recently served as EVP and CFO of The Campbell's Company, a role she previously held at Integra LifeSciences. Earlier in her career, she held senior finance roles at Dover Corporation and Delphi Corporation.
Ron Kisling was appointed CFO of
Skillsoft Corp. (NYSE: SKIL), an AI-native skills management platform, effective immediately. Kisling has more than 40 years of finance experience, including 15 years of CFO experience at high-growth technology companies. He most recently served as CFO at Fastly and Fitbit. Before that. Kisling held CFO positions at other technology companies, including Nanometrics, PGP Corporation, Saba Software, Inc., and SPL WorldGroup, Inc.
Dan Karpel was promoted to SVP and CFO of
Caleres (NYSE: CAL), a portfolio of consumer-driven footwear brands, effective immediately. Karpel rejoined Caleres as chief accounting officer in October 2025 and was appointed to the role of interim chief financial officer in January 2026. He brings 30 years of experience. Before rejoining Caleres, he served as the CFO of Club Car Wash Operating, LLC, and CW Holdings, LLC.
Ranjan Kalia was appointed CFO of
Material Plus Holdings, LLC, a global strategy, consumer insights, and digital transformation consultancy that is part of the Blackstone portfolio. Kalia brings to the role more than 30 years of experience. Most recently, he was CFO at Brillio, and before that at Orion Innovation and Virtusa Corporation.
Eric Lindquist was appointed CFO of
Delphi Diagnostics. Lindquist brings decades of leadership experience across pharmaceutical and diagnostics companies. Most recently, he served as CEO of InnoSIGN. Before that, he was chief business and commercial officer at Celcuity. Earlier in his career, Lindquist held senior leadership roles at Natera.
Greg Martini was appointed CFO of
Kyverna Therapeutics, Inc. (Nasdaq: KYTX), a late-stage clinical biopharmaceutical company, effective May 18. Martini succeeds Marc Grasso who will be consulting for the company for a transition period. Martini joins Kyverna from Ironwood Pharmaceuticals, where he most recently served as SVP and CFO.
Manus Costello was promoted to group CFO of
Standard Chartered, a multinational banking and financial services company. Costello succeeds Diego De Giorgi, who resigned in February. Standard Chartered had named Peter Burrill as its interim CFO following De Giorgi's departure to join Apollo Global Management as head of the EMEA region. Costello takes on the CFO role after joining Standard Chartered in April 2024 as global head of investor relations.
