Last checked Oct 8, 2026
Haynes International, Inc. (high-performance alloys; formerly NASDAQ: HAYN)haynesintl.comHaynes International, Inc. (high-performance alloys; formerly NASDAQ: HAYN) is not currently listed as private-equity-owned.
Ownership & Acquisition History
Haynes International, Inc. is not currently controlled by a private equity firm; it is owned by Acerinox, S.A. (via North American Stainless) following the merger closing on November 21, 2024.
Notes
- The name “Haynes” is ambiguous (it may refer to multiple unrelated entities, e.g., Haynes Manuals, Haynes & Boone, etc.); this research resolves it to Haynes International, Inc. because it matches the widely-recognized standalone “Haynes” industrial company and has clear public documentation of a change-of-control transaction.
- Haynes International’s own communications and Acerinox/North American Stainless press materials state the acquisition closed on November 21, 2024, making Acerinox the controlling owner (a strategic/public corporate owner, not a PE sponsor).
- Founding details (1912; Elwood Haynes; Kokomo, Indiana) are supported by Haynes International’s corporate history pages and corroborated by third-party references.
Sources
- Haynes International Announces the Completion of its Previously Announced Sale to North American Stainless (NAS), a Wholly-owned Subsidiary of Acerinox (Nov 21, 2024)
Haynes International - Confirms closing/completion of the sale to North American Stainless (Acerinox subsidiary) on Nov 21, 2024 (current controlling owner).
- Acerinox completes the acquisition of Haynes International
Acerinox - Confirms Acerinox completed acquisition via North American Stainless (control/ownership).
- Current Report on Form 8‑K (Haynes International) describing the Nov 21, 2024 closing of the merger
U.S. Securities and Exchange Commission (SEC) - Regulatory filing confirming the closing date and merger parties (ownership/control evidence).
- Nuestra Historia de la Empresa (Company history)
Haynes International - States the company was formed in Kokomo, Indiana in October 1912 and links the foundation to Elwood Haynes (founding year/location/founder).
- File:Haynes International Logo.gif
Wikimedia Commons - Provides a reliable hosted copy of the Haynes International wordmark/logo and the original file link (logo URL evidence).
- https://en.wikipedia.org/wiki/Haynes_Automobile_Company
Web search - Consulted by the research agent
- https://en.wikipedia.org/wiki/Haynes_and_Boone
Web search - Consulted by the research agent
- https://en.wikipedia.org/wiki/Haynes_International
Web search - Consulted by the research agent
- https://haynesintl.com/en/our-company/our-company-history/
Web search - Consulted by the research agent
- https://haynesintl.com/wp-content/uploads/2024/01/HAYN-2023-Proxy.pdf
Web search - Consulted by the research agent
- https://en.wikipedia.org/wiki/Haynes_Manual
Web search - Consulted by the research agent
- https://investor.haynes.com/sites/default/files/report/Haynes%20Publishing%20Group%20Annual%20Report%202012.pdf
Web search - Consulted by the research agent
Ownership FAQ
Is Haynes International, Inc. (high-performance alloys; formerly NASDAQ: HAYN) owned by private equity?
No. Haynes International, Inc. (high-performance alloys; formerly NASDAQ: HAYN) does not currently appear to be private-equity-owned.
Who owns Haynes International, Inc. (high-performance alloys; formerly NASDAQ: HAYN)?
Acerinox, S.A. (via wholly-owned U.S. subsidiary North American Stainless)
When was Haynes International, Inc. (high-performance alloys; formerly NASDAQ: HAYN) last checked?
This page was last checked on Oct 8, 2026.