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MQS Management’s Ribbon Communications RBBN Stock Holding History

MQS 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
2025
Q4 		– Sell
-21,308
Closed -$81K – 601
2025
Q3 		$81K Buy
+21,308
New +$83.7K 0.05% 400
2024
Q3 		– Sell
-30,348
Closed -$99.8K – 611
2024
Q2 		$99.8K Buy
+30,348
New +$92.3K 0.06% 396
2023
Q2 		– Sell
-20,376
Closed -$69.7K – 571
2023
Q1 		$69.7K Buy
+20,376
New +$74.5K 0.04% 383

Other funds holding RBBN

JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return
PCMI
Paradigm Capital Management Inc Albany, New York $2.61B AUM 78.58% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
RA
Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $43.4B AUM 51.29% 1-Year Est. Return

MQS Management's RBBN Position: Q4 2025 in Review

MQS Management sold out of Ribbon Communications (RBBN) in Q4 2025, closing a stake of 21,308 shares — an estimated $81K sold.

MQS Management first reported a position in RBBN in Q1 2023 and held it in 3 quarters. The position peaked at $99.8K in Q2 2024. 153 funds tracked by Wall St. Rank hold RBBN as of Q4 2025.

  • MQS Management reported no remaining Ribbon Communications position as of Q4 2025 after selling out during the quarter.
  • MQS Management sold 21,308 Ribbon Communications shares in Q4 2025, an estimated $81K.
  • MQS Management first reported a position in Ribbon Communications in Q1 2023 and held it in 3 quarters.
  • MQS Management's Ribbon Communications position peaked at $99.8K in Q2 2024.
  • 153 funds tracked by Wall St. Rank held Ribbon Communications as of Q4 2025.

Based on MQS Management's 13F filing for Q4 2025, filed 9 Feb 2026.