RIBBON COMMUNICATIONS INC (RBBN) Stock Institutional Trading Activity


RIBBON COMMUNICATIONS INC (RBBN) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q3 2025), investors with some of the largest reported share count changes include Polen Capital Management, Renaissance Technologies LLC, and First Eagle U.S. Value. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2025Renaissance Technologies LLCBuy11,30038,800$147,440
Q3 2025Polen Capital ManagementSell-42,94287,246$331,535
Q3 2025First Eagle U.S. ValueBuy8,0001,033,914$3,928,873
Q2 2025Renaissance Technologies LLCSell-117,31227,500$110,275
Q2 2025Polen Capital ManagementBuy130,188130,188$522,054
Q2 2025First Eagle U.S. ValueBuy145,1591,025,914$4,113,915
Q1 2025Renaissance Technologies LLCBuy130,712144,812$567,663
Q1 2025First Eagle U.S. ValueBuy61,386880,755$3,452,560
Q4 2024Renaissance Technologies LLCSell-61,11214,100$58,656
Q4 2024First Eagle U.S. ValueBuy748,090819,369$3,408,575
Q3 2024First Eagle U.S. ValueBuy71,27971,279$231,657
Q2 2024Renaissance Technologies LLCBuy61,21275,212$247,447
Q4 2023Renaissance Technologies LLCSell-17,60014,000$41
Q3 2023Renaissance Technologies LLCSell-90,81231,600$85
Q2 2023Renaissance Technologies LLCBuy81,512122,412$342
Q1 2023Renaissance Technologies LLCSell-35,30040,900$140
Q4 2022Renaissance Technologies LLCSell-207,92476,200$213
Q3 2022Renaissance Technologies LLCBuy168,824284,124$631
Q2 2022Renaissance Technologies LLCSell-17,111115,300$351
Q1 2022Renaissance Technologies LLCBuy74,011132,411$409
Q4 2021Renaissance Technologies LLCSell-47,70058,400$353
Q3 2021Renaissance Technologies LLCSell-100,800106,100$634
Q2 2021Renaissance Technologies LLCSell-400,436206,900$1,575
Q1 2021Renaissance Technologies LLCSell-354,033607,336$4,986
Q4 2020Renaissance Technologies LLCSell-148,131961,369$6,307
Q3 2020Renaissance Technologies LLCSell-273,0001,109,500$4,294
Q2 2020Renaissance Technologies LLCSell-168,3001,382,500$5,433
Q1 2020Renaissance Technologies LLCSell-328,8001,550,800$4,699
Q4 2019Renaissance Technologies LLCSell-197,3001,879,600$5,827
Q3 2019Renaissance Technologies LLCBuy48,1002,076,900$12,129

Frequently asked questions about RBBN activity

  • Which institutional owners are buying RBBN?

    Institutional owners buying RBBN include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in RBBN activity?

    "Buy" means an investor increased their reported position in RBBN compared to the prior reporting period. This reflects growing exposure to RIBBON COMMUNICATIONS INC (RBBN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in RBBN increasing?

    Institutional interest in RBBN can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.