Mariner’s Ribbon Communications RBBN Stock Holding History

Mariner’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	$49K	Buy	+23,093	New	+$55.3K	﹤0.01%	3429

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

Mariner's RBBN Position: Q1 2026 in Review

Mariner opened a new position in Ribbon Communications (RBBN) in Q1 2026: 23,093 shares worth $49K. The stake represents ﹤0.01% of the portfolio and ranks #3429 among its holdings.

150 funds tracked by Wall St. Rank hold RBBN as of Q1 2026.

Mariner held 23,093 shares of Ribbon Communications worth $49K as of Q1 2026.
Ribbon Communications was a new Mariner position in Q1 2026.
Ribbon Communications made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #3429 holding.
150 funds tracked by Wall St. Rank held Ribbon Communications as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.