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MasTec shares owned by Keystone Financial Services

Quarter-by-quarter ownership of MasTec (MTZ) shares owned by Keystone Financial Services from 13F filings

Historical chart of Keystone Financial Services investment in MasTec

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All positions including MasTec held by Keystone Financial Services consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in MasTec by Keystone Financial Services

Quarter filed Position value Share count Share price at filing
2025-09-30 $214k 1.0k 212.81