TSS
RBBN icon

Two Sigma Securities’s Ribbon Communications RBBN Stock Holding History

Two Sigma Securities’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 		$23.6K Sell
10,101
-12,863
-56% -$34K ﹤0.01% 1468
2026
Q1 		$48.7K Sell
22,964
-7,782
-25% -$18.6K 0.01% 1270
2025
Q4 		$88.5K Buy
+30,746
New +$99.2K 0.01% 994
2019
Q4 		– Sell
-16,289
Closed -$95K – 2595
2019
Q3 		$95K Buy
+16,289
New +$85.6K ﹤0.01% 1947
2018
Q1 		– Sell
-20,641
Closed -$160K – 2906
2017
Q4 		$160K Buy
+20,641
New +$158K ﹤0.01% 1369

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

Two Sigma Securities's RBBN Position: Q2 2026 in Review

Two Sigma Securities reduced its Ribbon Communications (RBBN) stake by 56% in Q2 2026, selling an estimated $34K and leaving 10,101 shares worth $23.6K. The position accounts for ﹤0.01% of the portfolio, ranked #1468.

Two Sigma Securities first reported a position in RBBN in Q4 2017 and has held it in 5 quarters since. The position peaked at $160K in Q4 2017. 160 funds tracked by Wall St. Rank hold RBBN as of Q2 2026.

  • Two Sigma Securities held 10,101 shares of Ribbon Communications worth $23.6K as of Q2 2026.
  • Two Sigma Securities sold 12,863 Ribbon Communications shares in Q2 2026, an estimated $34K.
  • Ribbon Communications made up ﹤0.01% of Two Sigma Securities's portfolio in Q2 2026, its #1468 holding.
  • Two Sigma Securities first reported a position in Ribbon Communications in Q4 2017 and has held it in 5 quarters since.
  • Two Sigma Securities's Ribbon Communications position peaked at $160K in Q4 2017.
  • 160 funds tracked by Wall St. Rank held Ribbon Communications as of Q2 2026.

Based on Two Sigma Securities's 13F filing for Q2 2026, filed 14 Aug 2026.