Qube Research & Technologies (QRT)
RBBN icon

Qube Research & Technologies (QRT)’s Ribbon Communications RBBN Stock Holding History

Qube Research & Technologies (QRT)’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 		$323K Buy
+137,899
New +$364K ﹤0.01% 2769
2026
Q1 		– Sell
-44,058
Closed -$127K – 4012
2025
Q4 		$127K Buy
+44,058
New +$142K ﹤0.01% 3147
2023
Q4 		– Sell
-10,880
Closed -$29.2K – 4663
2023
Q3 		$29.2K Sell
10,880
-56,895
-84% -$166K ﹤0.01% 3028
2023
Q2 		$189K Sell
67,775
-37,367
-36% -$104K ﹤0.01% 1794
2023
Q1 		$360K Buy
+105,142
New +$384K ﹤0.01% 1679
2021
Q2 		– Sell
-19,787
Closed -$162K – 2710
2021
Q1 		$162K Buy
+19,787
New +$164K ﹤0.01% 1684

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

Qube Research & Technologies (QRT)'s RBBN Position: Q2 2026 in Review

Qube Research & Technologies (QRT) opened a new position in Ribbon Communications (RBBN) in Q2 2026: 137,899 shares worth $323K. The stake represents ﹤0.01% of the portfolio and ranks #2769 among its holdings. This is a return to the name: Qube Research & Technologies (QRT) previously reported a position in RBBN as recently as Q4 2025.

Qube Research & Technologies (QRT) first reported a position in RBBN in Q1 2021 and has held it in 6 quarters since. The position peaked at $360K in Q1 2023. 160 funds tracked by Wall St. Rank hold RBBN as of Q2 2026.

  • Qube Research & Technologies (QRT) held 137,899 shares of Ribbon Communications worth $323K as of Q2 2026.
  • Ribbon Communications was a new Qube Research & Technologies (QRT) position in Q2 2026.
  • Ribbon Communications made up ﹤0.01% of Qube Research & Technologies (QRT)'s portfolio in Q2 2026, its #2769 holding.
  • Qube Research & Technologies (QRT) first reported a position in Ribbon Communications in Q1 2021 and has held it in 6 quarters since.
  • Qube Research & Technologies (QRT)'s Ribbon Communications position peaked at $360K in Q1 2023.
  • 160 funds tracked by Wall St. Rank held Ribbon Communications as of Q2 2026.

Based on Qube Research & Technologies (QRT)'s 13F filing for Q2 2026, filed 14 Aug 2026.