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Feb 13, 2024 09:48AM Form SC 13G/A Spok Holdings, Inc Filed by: RENAISSANCE TECHNOLOGIES LLC

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Feb 10, 2022 09:01AM Form SC 13G/A Spok Holdings, Inc Filed by: VANGUARD GROUP INC

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Feb 13, 2020 01:13PM Form SC 13G/A Spok Holdings, Inc Filed by: RENAISSANCE TECHNOLOGIES LLC

Feb 12, 2020 12:11PM

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Jan 31, 2019 03:52PM Form SC 13G/A Spok Holdings, Inc Filed by: VANGUARD WORLD FUND

Jan 31, 2019 02:53PM

Feb 14, 2018 10:58AM

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Jan 8, 2018 04:07PM Form SC 13G/A Spok Holdings, Inc Filed by: Braeside Investments, LLC

Feb 14, 2017 10:43AM

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Feb 13, 2017 11:16AM

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Apr 8, 2016 01:28PM Form SC 13G/A Spok Holdings, Inc Filed by: VANGUARD GROUP INC

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Feb 12, 2015 03:45PM Form SC 13G/A Spok Holdings, Inc Filed by: RENAISSANCE TECHNOLOGIES LLC

Feb 11, 2015 08:55AM

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