Citigroup
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Citigroup’s Ribbon Communications RBBN Stock Holding History

Citigroup’s Portfolio RBBN Stock Details RBBN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2016
Q1 		– Sell
-800
Closed -$6K – 7708
2015
Q4 		$6K Sell
800
-1,000
-56% -$6.71K ﹤0.01% 6981
2015
Q3 		$10K Buy
1,800
+900
+100% +$6.07K ﹤0.01% 6430
2015
Q2 		$6K Buy
+900
New +$7.06K ﹤0.01% 6690

Other funds holding RBBN

JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $148B AUM 31.56% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Royce & Associates
Royce & Associates New York $11B AUM 39.4% 1-Year Est. Return
Paradigm Capital Management Inc
Paradigm Capital Management Inc Albany, New York $3.17B AUM 63.41% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $85.7B AUM 51.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Citigroup's RBBN Position: Q3 2026 in Review

Citigroup increased its Ribbon Communications (RBBN) stake by 11% in Q3 2026, buying an estimated $19.3K and bringing the position to 97,372 shares worth $171K. The position accounts for ﹤0.01% of the portfolio, ranked #4276.

Citigroup first reported a position in RBBN in Q2 2013 and has held it in 54 quarters since. The position peaked at $946K in Q2 2021. 104 funds tracked by Wall St. Rank hold RBBN as of Q3 2026.

  • Citigroup held 97,372 shares of Ribbon Communications worth $171K as of Q3 2026.
  • Citigroup bought 9,465 Ribbon Communications shares in Q3 2026, an estimated $19.3K.
  • Ribbon Communications made up ﹤0.01% of Citigroup's portfolio in Q3 2026, its #4276 holding.
  • Citigroup first reported a position in Ribbon Communications in Q2 2013 and has held it in 54 quarters since.
  • Citigroup's Ribbon Communications position peaked at $946K in Q2 2021.
  • 104 funds tracked by Wall St. Rank held Ribbon Communications as of Q3 2026.

Based on Citigroup's 13F filing for Q3 2026, filed 4 Nov 2026.