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Spero Therapeutics
SPRO
SPRO
47 hedge funds and large institutions have $21.3M invested in Spero Therapeutics in 2025 Q3 according to their latest regulatory filings, with 14 funds opening new positions, 12 increasing their positions, 6 reducing their positions, and 11 closing their positions.
New
Increased
Maintained
Reduced
Closed
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more first-time investments, than exits
New positions opened: | Existing positions closed:
more funds holding
Funds holding: →
more ownership
Funds ownership: →
34% less capital invested
Capital invested by funds: $32.1M → $21.3M (-$10.9M)
45% less call options, than puts
Call options by funds: $195K | Put options by funds: $355K
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Holders
47
Holding in Top 10
–
Calls
$195K
Puts
$355K
Top Buyers
| 1 | +$1.36M | |
| 2 | +$331K | |
| 3 | +$242K | |
| 4 |
GCP
GSA Capital Partners
London,
United Kingdom
|
+$235K |
| 5 |
SC
Shay Capital
New York
|
+$140K |
Top Sellers
| 1 | -$1.48M | |
| 2 | -$902K | |
| 3 | -$455K | |
| 4 |
Acadian Asset Management
Boston,
Massachusetts
|
-$327K |
| 5 |
Citadel Advisors
Miami,
Florida
|
-$228K |