Ribbon Communications
RBBN
144 hedge funds and large institutions have $495M invested in Ribbon Communications in 2025 Q1 according to their latest regulatory filings, with 27 funds opening new positions, 45 increasing their positions, 48 reducing their positions, and 16 closing their positions.
2,927% more call options, than puts
Call options by funds: $999K | Put options by funds: $33K
69% more first-time investments, than exits
New positions opened: 27 | Existing positions closed: 16
8% more funds holding
Funds holding: 133 → 144 (+11)
0.65% more ownership
Funds ownership: 71.86% → 72.51% (+0.65%)
5% less capital invested
Capital invested by funds: $520M → $495M (-$24.6M)
6% less repeat investments, than reductions
Existing positions increased: 45 | Existing positions reduced: 48
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Connor, Clark & Lunn Investment Management (CC&L)
Vancouver,
British Columbia, Canada
|
+$2.17M |
| 2 |
HIM
Hillsdale Investment Management
Toronto,
Ontario, Canada
|
+$1.38M |
| 3 |
Raymond James Financial
St Petersburg,
Florida
|
+$1.24M |
| 4 |
Commonwealth Equity Services
Waltham,
Massachusetts
|
+$1.22M |
| 5 |
RA
Royce & Associates
New York
|
+$1.22M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PCMI
Paradigm Capital Management Inc
Albany,
New York
|
-$2.64M |
| 2 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
-$1.32M |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$1.26M |
| 4 |
HIM
Herald Investment Management
London,
United Kingdom
|
-$888K |
| 5 |
MIC
Maxi Investments CY
Limassol,
Cyprus
|
-$812K |
RBBN Hedge Fund Activity: Q1 2025 in Review
144 of the 7,472 institutional investors tracked by Wall St. Rank reported a position in Ribbon Communications (RBBN) for Q1 2025, worth a combined $495M — down 4.7% from $520M a quarter earlier.
Buyers outnumbered sellers: 27 funds opened new RBBN positions and 16 closed out — a net gain of 11 holders — while 45 added to existing stakes and 48 trimmed.
The largest buyer was Connor, Clark & Lunn Investment Management (CC&L), adding an estimated $2.17M. The largest seller was Paradigm Capital Management Inc, cutting an estimated $2.64M.
- 144 institutional investors held Ribbon Communications (RBBN) as of Q1 2025, up from 133 in Q4 2024.
- Funds reported $495M of Ribbon Communications stock for Q1 2025, down 4.7% quarter-over-quarter.
- 27 funds opened new Ribbon Communications positions in Q1 2025 and 16 closed out, a net change of +11 holders.
- The largest Ribbon Communications buyer in Q1 2025 was Connor, Clark & Lunn Investment Management (CC&L), an estimated $2.17M added.
- The largest Ribbon Communications seller in Q1 2025 was Paradigm Capital Management Inc, an estimated $2.64M sold.
Based on aggregated 13F filings for Q1 2025.