Spero Therapeutics shares owned by Citadel Advisors
Quarter-by-quarter ownership of Spero Therapeutics (SPRO) shares owned by Citadel Advisors
from 13F filings
Historical chart of Citadel Advisors investment in Spero Therapeutics
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Quarterly reported holdings in Spero Therapeutics by Citadel Advisors
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $103k | 55k | 1.88 |
| 2025-06-30 | $699k | 241k | 2.90 |
| 2025-03-31 | $51k | 71k | 0.72 |
| 2024-12-31 | $179k | 173k | 1.03 |
| 2024-09-30 | $110k | 82k | 1.34 |
| 2024-06-30 | $408k | 314k | 1.30 |
| 2023-12-31 | $47k | 32k | 1.47 |
| 2023-06-30 | $23k | 16k | 1.45 |
| 2022-06-30 | $137k | 186k | 0.74 |
| 2022-03-31 | $240k | 28k | 8.71 |
| 2021-12-31 | $689k | 43k | 16.02 |
| 2021-09-30 | $1.2M | 63k | 18.40 |
| 2021-06-30 | $1.1M | 76k | 13.97 |
| 2021-03-31 | $1.4M | 93k | 14.71 |
| 2020-12-31 | $2.5M | 128k | 19.39 |
| 2020-09-30 | $942k | 65k | 14.49 |