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Spero Therapeutics shares owned by Cubist Systematic Strategies

Quarter-by-quarter ownership of Spero Therapeutics (SPRO) shares owned by Cubist Systematic Strategies from 13F filings

Historical chart of Cubist Systematic Strategies investment in Spero Therapeutics

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All positions including Spero Therapeutics held by Cubist Systematic Strategies consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Spero Therapeutics by Cubist Systematic Strategies

Quarter filed Position value Share count Share price at filing
2025-09-30 $77k 41k 1.88
2025-06-30 $79k 27k 2.90
2022-03-31 $123k 14k 8.70
2018-09-30 $11k 1.0k 10.93