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 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 New York $1.56T AUM 27.86% 1-Year Est. Return

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

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $43.4B AUM 51.29% 1-Year Est. Return

Qube Research & Technologies (QRT)'s RBBN Position: Q1 2026 in Review

Qube Research & Technologies (QRT) sold out of Ribbon Communications (RBBN) in Q1 2026, closing a stake of 44,058 shares — an estimated $127K sold.

Qube Research & Technologies (QRT) first reported a position in RBBN in Q1 2021 and held it in 5 quarters. The position peaked at $360K in Q1 2023. 150 funds tracked by Wall St. Rank hold RBBN as of Q1 2026.

Qube Research & Technologies (QRT) reported no remaining Ribbon Communications position as of Q1 2026 after selling out during the quarter.
Qube Research & Technologies (QRT) sold 44,058 Ribbon Communications shares in Q1 2026, an estimated $127K.
Qube Research & Technologies (QRT) first reported a position in Ribbon Communications in Q1 2021 and held it in 5 quarters.
Qube Research & Technologies (QRT)'s Ribbon Communications position peaked at $360K in Q1 2023.
150 funds tracked by Wall St. Rank held Ribbon Communications as of Q1 2026.

Based on Qube Research & Technologies (QRT)'s 13F filing for Q1 2026, filed 15 May 2026.