Mariner
RBBN icon

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
Q2 		$101K Buy
43,328
+20,235
+88% +$53.4K ﹤0.01% 3329
2026
Q1 		$49K Buy
+23,093
New +$55.3K ﹤0.01% 3429

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

Mariner's RBBN Position: Q2 2026 in Review

Mariner increased its Ribbon Communications (RBBN) stake by 88% in Q2 2026, buying an estimated $53.4K and bringing the position to 43,328 shares worth $101K. The position accounts for ﹤0.01% of the portfolio, ranked #3329.

Mariner first reported a position in RBBN in Q1 2026 and has held it in 2 quarters since. 161 funds tracked by Wall St. Rank hold RBBN as of Q2 2026.

  • Mariner held 43,328 shares of Ribbon Communications worth $101K as of Q2 2026.
  • Mariner bought 20,235 Ribbon Communications shares in Q2 2026, an estimated $53.4K.
  • Ribbon Communications made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3329 holding.
  • Mariner first reported a position in Ribbon Communications in Q1 2026 and has held it in 2 quarters since.
  • 161 funds tracked by Wall St. Rank held Ribbon Communications as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.