Monomoy Capital Partners has sold Astro Shapes to Wynnchurch Capital. Monomoy acquired Astro Shapes in December 2020 from National Material LP.
Astro Shapes specializes in creating over 14,000 unique extrusion shapes and sizes with finishes including painted, thermal, anodized, and other coatings. The company’s products are used in residential and commercial windows and doors, RV components, and equipment for medical and industrial applications. The company produces approximately 145 million pounds of extrusions annually.

Astro Shapes was founded in 1971 by Bob Cene, Sr. and is currently led by CEO Paul Cene, the son of the founder. The company has more than 700 employees and a 450,000 sq. ft. production and headquarters facility located southeast of Youngstown in Struthers, Ohio.
During Monomoy’s four-year ownership term, Astro Shapes expanded its market share, added new products, and integrated an in-house sales team and a new CRM system. With the sale to Wynnchurch, Astro Shapes has promoted Steve DeVoe to CEO.
“Astro Shapes has an industry-leading value proposition with its unique services and technological capabilities,” said Greg Gleason, a managing partner at Wynnchurch. “We’re excited to partner with Steve and his team to continue their track record of delivering superior products and services to their customers and build upon Astro Shapes’ position as a leading manufacturer of specialty aluminum products.”
“The success Astro Shapes has experienced during our partnership with Monomoy is not only due to tactical improvements but also the holistic value-creation approach we have executed together,” said Mr. Cene, who has transitioned to an advisory role on Astro Shapes’ board of directors. “In Monomoy, we established a team of thought partners who deeply understand family-led companies and helped equip us with the necessary resources to continue my father’s legacy. On behalf of my family, we are proud of the Astro Shapes team and grateful for Monomoy’s leadership, and we wish Steve and the entire company continued growth and success.”
“Monomoy is honored to have partnered alongside Paul and a devoted management team to supercharge the growth of the Astro Shapes business,” said Jaime Forsyth, a partner at Monomoy. “We achieved success through our co-development of key operational initiatives that resulted in significant growth during a market downturn. We would like to congratulate Paul, Steve, and the entire Astro Shapes team, who should be very proud of the legacy they have built, and wish the entire company continued success in this next chapter with Wynnchurch.”
Monomoy Capital Partners makes control investments of debt and equity in companies with $20 million to $100 million of EBITDA. Sectors of interest include manufacturing, distribution, and services across North America. In July 2024, after just five months of fundraising, Monomoy held an oversubscribed and above-target closing of its fifth fund with $2.25 billion of capital. Monomoy was founded in 2005 and is based in New York City, with over $5 billion in assets under management.
Wynnchurch Capital invests in businesses with revenues between $50 million and $1 billion. Its expertise includes recapitalizations, growth capital, management buyouts, corporate carve-outs, and restructurings. Wynnchurch focuses on sectors such as aerospace, defense, and government; building products and materials; consumer and food; manufacturing, industrial, and transportation; and business services and distribution. Founded in 1999, Wynnchurch is headquartered near Chicago in Rosemont, Illinois. In January 2024, the firm closed its sixth private equity fund, Wynnchurch Capital Partners VI LP, with $3.5 billion in committed capital.
KeyBanc Capital Markets and Houlihan Lokey Capital were the financial advisors to Astro Shapes and Monomoy. Lincoln International acted as board advisor to Astro Shapes, while Goldman Sachs & Co. served as the financial advisor to Wynnchurch.
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