Spero Therapeutics
SPRO
SPRO
50 hedge funds and large institutions have $49.3M invested in Spero Therapeutics in 2026 Q1 according to their latest regulatory filings, with 8 funds opening new positions, 13 increasing their positions, 10 reducing their positions, and 12 closing their positions.
New
Increased
Maintained
Reduced
Closed
more funds holding in top 10
Funds holding in top 10: →
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more capital invested
Capital invested by funds: $ → $
less ownership
Funds ownership: →
11% less funds holding
Funds holding: 56 → 50 (-6)
33% less first-time investments, than exits
New positions opened: 8 | Existing positions closed: 12
45% less call options, than puts
Call options by funds: $194K | Put options by funds: $350K
Holders
50
Holding in Top 10
2
Calls
$194K
Puts
$350K
Top Buyers
| 1 | +$1.22M | |
| 2 | +$519K | |
| 3 | +$373K | |
| 4 |
GCP
GSA Capital Partners
London,
United Kingdom
|
+$236K |
| 5 |
Squarepoint
New York
|
+$178K |
Top Sellers
| 1 | -$508K | |
| 2 | -$353K | |
| 3 | -$308K | |
| 4 |
UBS Group
Zurich,
Switzerland
|
-$269K |
| 5 |
ACM
ADAR1 Capital Management
Austin,
Texas
|
-$265K |
