Simplex Trading
RBBN icon

Simplex Trading’s Ribbon Communications RBBN Stock Holding History

Simplex Trading’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
2024
Q3 		– Sell
-16,300
Closed -$53K – 9372
2024
Q2 		$53K Buy
16,300
+100
+0.6% +$304 ﹤0.01% 6034
2024
Q1 		$51K Sell
16,200
-5,000
-24% -$15.2K ﹤0.01% 6241
2023
Q4 		$61K Sell
21,200
-100
-0.5% -$225 ﹤0.01% 5905
2023
Q3 		$57K Sell
21,300
-100
-0.5% -$292 ﹤0.01% 5684
2023
Q2 		$59K Sell
21,400
-36,300
-63% -$101K ﹤0.01% 5670
2023
Q1 		$197K Buy
+57,700
New +$211K ﹤0.01% 4338
2022
Q1 		– Sell
-3,600
Closed -$21K – 11217
2021
Q4 		$21K Sell
3,600
-54,900
-94% -$326K ﹤0.01% 8319
2021
Q3 		$446K Hold
58,500
– – ﹤0.01% 4268
2021
Q2 		$445K Buy
58,500
+56,744
+3,231% +$434K ﹤0.01% 4347
2021
Q1 		$1.44M Buy
1,756
+139
+9% +$1.15K ﹤0.01% 1993
2020
Q4 		$1.06M Buy
+1,617
New +$8.54K ﹤0.01% 2478
2019
Q4 		– Sell
-24
Closed -$14K – 7848
2019
Q3 		$14K Sell
24
-207
-90% -$1.09K ﹤0.01% 6064
2019
Q2 		$112K Sell
231
-88
-28% -$430 ﹤0.01% 4069
2019
Q1 		$164K Buy
319
+231
+263% +$1.24K ﹤0.01% 3816
2018
Q4 		$42K Buy
+88
New +$510 ﹤0.01% 4692
2017
Q3 		– Sell
-28
Closed -$1K – 6502
2017
Q2 		$1K Buy
+28
New +$206 ﹤0.01% 5698
2015
Q3 		– Sell
-7
Closed -$2K – 6066
2015
Q2 		$2K Sell
7
-81
-92% -$635 ﹤0.01% 4334
2015
Q1 		$54K Buy
+88
New +$1.45K 0.01% 1503

Other funds holding RBBN

JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Neuberger Berman Group
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
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
RA
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
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $43.4B AUM 51.29% 1-Year Est. Return

Simplex Trading's RBBN Position: Q1 2026 in Review

Simplex Trading sold out of Ribbon Communications (RBBN) in Q1 2026, closing a stake of 2,586 shares — an estimated $6.19K sold.

Simplex Trading first reported a position in RBBN in Q1 2015 and held it in 34 quarters. The position peaked at $434K in Q1 2021. 150 funds tracked by Wall St. Rank hold RBBN as of Q1 2026.

  • Simplex Trading reported no remaining Ribbon Communications position as of Q1 2026 after selling out during the quarter.
  • Simplex Trading sold 2,586 Ribbon Communications shares in Q1 2026, an estimated $6.19K.
  • Simplex Trading first reported a position in Ribbon Communications in Q1 2015 and held it in 34 quarters.
  • Simplex Trading's Ribbon Communications position peaked at $434K in Q1 2021.
  • 150 funds tracked by Wall St. Rank held Ribbon Communications as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.