Citigroup
RBBN icon

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 $1.81T AUM 41.13% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
RA
Royce & Associates New York $12.4B AUM 64.17% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
PCMI
Paradigm Capital Management Inc Albany, New York $3.67B AUM 121.12% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $52.8B AUM 58.98% 1-Year Est. Return

Citigroup's RBBN Position: Q2 2026 in Review

Citigroup increased its Ribbon Communications (RBBN) stake by 140% in Q2 2026, buying an estimated $136K and bringing the position to 87,907 shares worth $206K. The position accounts for ﹤0.01% of the portfolio, ranked #4327.

Citigroup first reported a position in RBBN in Q2 2013 and has held it in 53 quarters since. The position peaked at $946K in Q2 2021. 160 funds tracked by Wall St. Rank hold RBBN as of Q2 2026.

  • Citigroup held 87,907 shares of Ribbon Communications worth $206K as of Q2 2026.
  • Citigroup bought 51,340 Ribbon Communications shares in Q2 2026, an estimated $136K.
  • Ribbon Communications made up ﹤0.01% of Citigroup's portfolio in Q2 2026, its #4327 holding.
  • Citigroup first reported a position in Ribbon Communications in Q2 2013 and has held it in 53 quarters since.
  • Citigroup's Ribbon Communications position peaked at $946K in Q2 2021.
  • 160 funds tracked by Wall St. Rank held Ribbon Communications as of Q2 2026.

Based on Citigroup's 13F filing for Q2 2026, filed 3 Aug 2026.