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Who owns Ribbon Communications (RBBN) stock

149 funds reported Ribbon Communications (RBBN) shares in their latest 13F filings, worth $190M in all. The largest holder is Neuberger Berman Group LLC ($38.7M). Last quarter 81 funds added to their stakes and 47 cut them.

Largest holders of RBBN (13F)Largest holders of RBBN (13F)Neuberger Berman Group LLC$38.7MVanguard Group$22.6MBlackRock$16.7MDimensional Fund Advisors LP$14.7MRoyce & Associates LP$11.9MVanguard Capital Management LLC$9.2MVanguard Portfolio Management LLC$8.2MGeode Capital Management, LLC$5.8MConnor, Clark & Lunn Investment M…$5.2MState Street$4.5M

Largest holders (13F)

FundSharesValueChangeQuarter
Neuberger Berman Group LLC18,311,073$38.7Mincrease2026-06-30
Vanguard Group7,833,009$22.6Mincrease2025-12-31
BlackRock7,146,590$16.7Mincrease2026-06-30
Dimensional Fund Advisors LP6,286,323$14.7Mdecrease2026-06-30
Royce & Associates LP5,090,927$11.9Mincrease2026-06-30
Vanguard Capital Management LLC3,925,626$9.2Mdecrease2026-06-30
Vanguard Portfolio Management LLC3,513,067$8.2Mincrease2026-06-30
Geode Capital Management, LLC2,485,064$5.8Mincrease2026-06-30
Connor, Clark & Lunn Investment Management2,213,134$5.2Mincrease2026-06-30
State Street1,930,153$4.5Mincrease2026-06-30
D. E. Shaw1,790,375$4.2Mincrease2026-06-30
Acadian Asset Management LLC1,768,227$4.1Mincrease2026-06-30
AQR Capital Management LLC1,409,795$3.3Mincrease2026-06-30
First Wilshire Securities Management1,404,493$3.3Mdecrease2026-06-30
Citadel Advisors LLC1,241,200$2.9Mincrease2026-06-30

Ribbon Communications' latest quarter

Ribbon Communications, Q3 2026: revenue $219M (+2% year over year), operating margin 2.6%, net loss $9.1M, operating cash flow −$14.4M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most RBBN stock?

By the latest 13F filings: Neuberger Berman Group LLC ($38.7M); Vanguard Group ($22.6M); BlackRock ($16.7M); Dimensional Fund Advisors LP ($14.7M); Royce & Associates LP ($11.9M).

What is the short interest in RBBN?

5,204,223 shares were sold short at the 2026-10-15 settlement, 3.82% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.