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MAI Capital Management’s Ribbon Communications RBBN Stock Holding History

MAI Capital Management’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
2026
Q2 		– Sell
-641
Closed -$1.36K – 4110
2026
Q1 		$1.36K Buy
641
+563
+722% +$1.35K ﹤0.01% 4073
2025
Q4 		$225 Buy
+78
New +$252 ﹤0.01% 4017
2025
Q1 		– Sell
-916
Closed -$3.81K – 3552
2024
Q4 		$3.81K Buy
+916
New +$3.46K ﹤0.01% 2861

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

MAI Capital Management's RBBN Position: Q2 2026 in Review

MAI Capital Management sold out of Ribbon Communications (RBBN) in Q2 2026, closing a stake of 641 shares — an estimated $1.36K sold.

MAI Capital Management first reported a position in RBBN in Q4 2024 and held it in 3 quarters. The position peaked at $3.81K in Q4 2024. 160 funds tracked by Wall St. Rank hold RBBN as of Q2 2026.

  • MAI Capital Management reported no remaining Ribbon Communications position as of Q2 2026 after selling out during the quarter.
  • MAI Capital Management sold 641 Ribbon Communications shares in Q2 2026, an estimated $1.36K.
  • MAI Capital Management first reported a position in Ribbon Communications in Q4 2024 and held it in 3 quarters.
  • MAI Capital Management's Ribbon Communications position peaked at $3.81K in Q4 2024.
  • 160 funds tracked by Wall St. Rank held Ribbon Communications as of Q2 2026.

Based on MAI Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.