SCHEDULE 13D/A
Beneficial Ownership Report
Spero Therapeutics, Inc. Filed Acc 0001999371-25-003391
Stakes reported in this filing
| Reporting person | Shares | Of the class |
|---|---|---|
| GSK PLC | 9,190,606 | 16.4% |
Members of a group can each report the same shares, so these rows overlap and don't add up.
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