Leon Topalian

Chief Executive Officer at NUCOR CORPORATION

Net worth: 35 M $ as of 2026-05-30

58 year

68 connections

Non-Energy Minerals

Commercial Services

Producer Manufacturing

Profile

Leon J. Topalian is President, Chief Executive Officer & Director at Nucor Corp. In his past career he held the position of General Manager at Nucor-Yamato Steel Co., General Manager for Nucor Steel Kankakee, Inc., Manager-Melting & Casting at Nucor Steel-South Carolina and Project Engineer at Nucor Steel Berkeley.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
NUCOR CORPORATION 0.06%	2026-05-31	139,511 ( 0.06% )	35 M $	2026-05-30
PPG INDUSTRIES, INC. 0%	2026-04-15	1,310 ( 0% )	148 004 $	2026-05-30

Latest news about Leon Topalian

04-27

Nucor beats quarterly revenue estimates on steel mills strength

Leon Topalian active positions

Companies	Position	Start
NUCOR CORPORATION	Chief Executive Officer	2019-12-31
PPG INDUSTRIES, INC.	Director/Board Member	2025-07-15
American Iron & Steel Institute, Inc. American Iron & Steel Institute, Inc. Metal FabricationProducer Manufacturing Engages in iron & steel industry	Director/Board Member	2023-04-30
World Steel Association World Steel Association Miscellaneous Commercial ServicesCommercial Services Operates an organisation for steel production industry	Director/Board Member	-
National Association of Manufacturers National Association of Manufacturers Miscellaneous Commercial ServicesCommercial Services Operates as a trade association	Director/Board Member	-

All active positions of Leon Topalian

Former positions of Leon Topalian

Companies	Position	End
Nucor-Yamato Steel Co. Nucor-Yamato Steel Co. Metal FabricationProducer Manufacturing Provides structural-steel shapes, such as wide-flange shapes, car-building shapes	Corporate Officer/Principal	2017-05-13
Nucor Steel Kankakee, Inc. Nucor Steel Kankakee, Inc. SteelNon-Energy Minerals Manufactures steel products	Corporate Officer/Principal	2013-12-31
AISC Holdings, Inc. AISC Holdings, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as holding company whose subsidiaries provides structural-steel-related technical and market-building activities	Director/Board Member	-
Nucor Steel-South Carolina Nucor Steel-South Carolina SteelNon-Energy Minerals Manufactures steel bars & related products	Corporate Officer/Principal	-
░░░░░ ░░░░░ ░░░░░░░░	░░░░░░░░░ ░░░░░░░░░░░░░░░░░	-

See the detail of Leon Topalian's experience

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Leon Topalian's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	10
Nucor Corp. Nucor Corp. SteelNon-Energy Minerals Manufactures steel and steel products	Non-Energy Minerals
PPG Industries, Inc. PPG Industries, Inc. Industrial SpecialtiesProcess Industries Manufactures and distributes paints, coatings & specialty materials	Process Industries
Nucor Steel Kankakee, Inc. Nucor Steel Kankakee, Inc. SteelNon-Energy Minerals Manufactures steel products	Non-Energy Minerals
Nucor-Yamato Steel Co. Nucor-Yamato Steel Co. Metal FabricationProducer Manufacturing Provides structural-steel shapes, such as wide-flange shapes, car-building shapes	Producer Manufacturing
National Association of Manufacturers National Association of Manufacturers Miscellaneous Commercial ServicesCommercial Services Operates as a trade association	Commercial Services
American Iron & Steel Institute, Inc. American Iron & Steel Institute, Inc. Metal FabricationProducer Manufacturing Engages in iron & steel industry	Producer Manufacturing
World Steel Association World Steel Association Miscellaneous Commercial ServicesCommercial Services Operates an organisation for steel production industry	Commercial Services
AISC Holdings, Inc. AISC Holdings, Inc. Miscellaneous Commercial ServicesCommercial Services Operates as holding company whose subsidiaries provides structural-steel-related technical and market-building activities	Commercial Services
Nucor Steel-South Carolina Nucor Steel-South Carolina SteelNon-Energy Minerals Manufactures steel bars & related products	Non-Energy Minerals
Nucor Steel Berkeley Nucor Steel Berkeley SteelNon-Energy Minerals Manufactures and supplies steel coils & tubes	Non-Energy Minerals