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Spero Therapeutics shares owned by GSK

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

Historical chart of GSK investment in Spero Therapeutics

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Quarterly reported holdings in Spero Therapeutics by GSK

Quarter filed	Position value	Share count	Share price at filing
2026-06-30	$20M	9.2M	2.21

More positions owned by GSK

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Top funds holding Spero Therapeutics

Vanguard Capital Management

Renaissance Technologies

Two Sigma Investments

Geode Capital Management

Citadel Advisors

Susquehanna International

Arrowstreet Capital, Limited Partnership

Vanguard Fiduciary Trust

GSA Capital Partners

Dimensional Fund Advisors

State Street Corporation

View all funds holding Spero Therapeutics

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