RBBN Ribbon Communications Inc.: institutional ownership and insider trading
171 funds reported holding $315M of Ribbon Communications Inc. in their latest 13F filings; in Q2 2026 funds net sold $2.25M, with 22 new positions and 12 funds selling out; over the last 12 months insiders bought $74.3K and sold $0 on the open market.
Famous investors holding RBBN
- D. E. Shaw (D. E. Shaw & Co.): $4.19M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $2.97M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $1.63M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $239K, 0.0% of the portfolio
Largest institutional holders of RBBN
- JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) — $116M
- Neuberger Berman Group LLC — $38.7M
- VANGUARD GROUP INC — $22.6M
- BlackRock, Inc. (BLK) — $16.7M
- DIMENSIONAL FUND ADVISORS LP — $14.7M
- ROYCE & ASSOCIATES LP — $11.9M
- VANGUARD CAPITAL MANAGEMENT LLC — $9.19M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $8.22M
- PARADIGM CAPITAL MANAGEMENT INC/NY — $7.11M
- GEODE CAPITAL MANAGEMENT, LLC — $5.82M
Recent RBBN insider trades
- Feb 13, 2026: McClelland Bruce William bought 37,000 shares ($74.3K)
- Sep 8, 2025: Redington Dan sold 189,610 shares ($767K)
- Sep 5, 2025: Infante Beatriz V sold 8,690 shares ($34.6K)
- Apr 9, 2025: Jpmorgan Chase & Co sold 14 shares ($0)
5%+ owners
- PARADIGM CAPITAL MANAGEMENT INC/NY: 5.0% (Schedule 13G/A, filed Aug 14, 2025)