Constantine Macricostas

Founder at PHOTRONICS, INC.

Net worth: 13 M $ as of 2026-05-30

90 year

24 connections

Electronic Technology

Consumer Services

Technology Services

Profile

Constantine S.
Macricostas is the founder of Photronics, Inc., founded in 1969, serving as Director since 2025.
Mr. Macricostas was the founder of NTT Global Data Centers, Inc., founded in 2000, serving as Chairman from 2000 to 2011.
Current jobs include Director at Orbit Semiconductor, Inc., and President, Treasurer & Director at Macricostas Family Foundation, Inc. since 2001.
Former jobs include Director at Medical Connections Holdings, Inc., Director at Western Connecticut State University, Director at Photronics Semiconductor Mask Corp., Design Engineer at National Semiconductor Corp., and Engineering Manager at Qualitronics Corp from 1965 to 1969.
Education includes undergraduate studies at the University of Hartford.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
PHOTRONICS, INC. 0.7%	2026-04-13	410,895 ( 0.7% )	13 M $	2026-05-30

Constantine Macricostas active positions

Companies	Position	Start
PHOTRONICS, INC.	Founder	1968-12-31
Orbit Semiconductor, Inc. Orbit Semiconductor, Inc. SemiconductorsElectronic Technology Provides semiconductor design, manufacturing and engineering support services	Director/Board Member	-
Macricostas Family Foundation, Inc. Macricostas Family Foundation, Inc. Investment Trusts/Mutual FundsMiscellaneous Operates as a foundation	President	2000-12-31

All active positions of Constantine Macricostas

Former positions of Constantine Macricostas

Companies	Position	End
Qualitronics Corp Qualitronics Corp Electronic Production EquipmentElectronic Technology Manufactures a variety of electronic products	Corporate Officer/Principal	1968-12-31
Western Connecticut State University Western Connecticut State University Other Consumer ServicesConsumer Services Functions as a College/University	Director/Board Member	-
National Semiconductor Corp. National Semiconductor Corp. SemiconductorsElectronic Technology Develops and manufactures analog intensive and mixed-signal integrated circuits	Corporate Officer/Principal	-
Photronics Semiconductor Mask Corp. Photronics Semiconductor Mask Corp. SemiconductorsElectronic Technology Engaged in the research, development and manufacture of photo masks	Chairman	2011-02-23
MEDICAL CONNECTIONS HOLDINGS, INC.	Director/Board Member	-

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Linked companies

Private companies	10
National Semiconductor Corp. National Semiconductor Corp. SemiconductorsElectronic Technology Develops and manufactures analog intensive and mixed-signal integrated circuits	Electronic Technology
Orbit Semiconductor, Inc. Orbit Semiconductor, Inc. SemiconductorsElectronic Technology Provides semiconductor design, manufacturing and engineering support services	Electronic Technology
Photronics, Inc. Photronics, Inc. Electronic Production EquipmentElectronic Technology Manufactures and distributes photomasks used in making semiconductors	Electronic Technology
NTT Global Data Centers, Inc. NTT Global Data Centers, Inc. Information Technology ServicesTechnology Services Provides information technology services and solutions	Technology Services
Medical Connections Holdings, Inc. Medical Connections Holdings, Inc. Personnel ServicesCommercial Services Provides recruiting and staffing services to clients within the healthcare and medical industries	Commercial Services
Qualitronics Corp Qualitronics Corp Electronic Production EquipmentElectronic Technology Manufactures a variety of electronic products	Electronic Technology
University of Hartford University of Hartford Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Western Connecticut State University Western Connecticut State University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Photronics Semiconductor Mask Corp. Photronics Semiconductor Mask Corp. SemiconductorsElectronic Technology Engaged in the research, development and manufacture of photo masks	Electronic Technology
Macricostas Family Foundation, Inc. Macricostas Family Foundation, Inc. Investment Trusts/Mutual FundsMiscellaneous Operates as a foundation	Miscellaneous