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Ribbon Communications
RBBN
RBBN
150 hedge funds and large institutions have $268M invested in Ribbon Communications in 2026 Q1 according to their latest regulatory filings, with 37 funds opening new positions, 51 increasing their positions, 43 reducing their positions, and 35 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 ownership
Funds ownership: →
less funds holding
Funds holding: →
27% less capital invested
Capital invested by funds: $369M → $268M (-$101M)
Holders
150
Holding in Top 10
–
Calls
$512K
Puts
–
Top Buyers
| 1 | +$1.83M | |
| 2 | +$1.62M | |
| 3 | +$1.43M | |
| 4 |
D.E. Shaw & Co
New York
|
+$1.34M |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$1.25M |
Top Sellers
| 1 | -$2.48M | |
| 2 | -$2.25M | |
| 3 | -$2.05M | |
| 4 |
HIM
Herald Investment Management
London,
United Kingdom
|
-$1.68M |
| 5 |
Jane Street
New York
|
-$1.09M |
