Group One Trading
RBBN icon

Group One Trading’s Ribbon Communications RBBN Stock Holding History

Group One 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
2026
Q1 		$112K Sell
52,700
-1,200
-2% -$2.87K ﹤0.01% 4627
2025
Q4 		$155K Sell
53,900
-10,400
-16% -$33.6K ﹤0.01% 4612
2025
Q3 		$244K Buy
64,300
+1,800
+3% +$7.07K ﹤0.01% 4460
2025
Q2 		$251K Sell
62,500
-400
-0.6% -$1.44K ﹤0.01% 4112
2025
Q1 		$247K Sell
62,900
-3,900
-6% -$16.4K ﹤0.01% 3792
2024
Q4 		$278K Buy
66,800
+62,800
+1,570% +$237K ﹤0.01% 3654
2024
Q3 		$13K Buy
+4,000
New +$13K ﹤0.01% 5472
2024
Q2 		– Sell
-33,700
Closed -$108K – 7349
2024
Q1 		$108K Sell
33,700
-49,000
-59% -$149K ﹤0.01% 4089
2023
Q4 		$240K Buy
+82,700
New +$186K ﹤0.01% 3703
2023
Q2 		– Sell
-10,000
Closed -$34.2K – 8112
2023
Q1 		$34.2K Hold
10,000
– – ﹤0.01% 5147
2022
Q4 		$27.9K Buy
+10,000
New +$25.9K ﹤0.01% 5392
2022
Q1 		– Sell
-100
Closed -$1K – 8565
2021
Q4 		$1K Sell
100
-5,700
-98% -$33.8K ﹤0.01% 8016
2021
Q3 		$35K Buy
5,800
+4,500
+346% +$30.4K ﹤0.01% 6818
2021
Q2 		$10K Sell
1,300
-91,800
-99% -$703K ﹤0.01% 7528
2021
Q1 		$764K Buy
93,100
+87,100
+1,452% +$721K ﹤0.01% 3541
2020
Q4 		$39K Buy
+6,000
New +$31.7K ﹤0.01% 5163
2020
Q3 		– Sell
-23,400
Closed -$92K – 6476
2020
Q2 		$92K Buy
+23,400
New +$85K ﹤0.01% 3974
2020
Q1 		– Sell
-800
Closed -$2K – 5658
2019
Q4 		$2K Buy
+800
New +$3.18K ﹤0.01% 4915
2019
Q2 		– Sell
-15,500
Closed -$80K – 5313
2019
Q1 		$80K Buy
15,500
+14,400
+1,309% +$77.1K ﹤0.01% 3322
2018
Q4 		$5K Buy
+1,100
New +$6.38K ﹤0.01% 4474
2018
Q3 		– Sell
-8,200
Closed -$58K – 5541
2018
Q2 		$58K Buy
+8,200
New +$48K ﹤0.01% 3869
2017
Q2 		– Sell
-2,600
Closed -$17K – 5019
2017
Q1 		$17K Buy
+2,600
New +$16.5K ﹤0.01% 3939
2016
Q4 		– Sell
-1,000
Closed -$8K – 4762
2016
Q3 		$8K Sell
1,000
-30,500
-97% -$267K ﹤0.01% 4111
2016
Q2 		$274K Buy
31,500
+20,800
+194% +$173K ﹤0.01% 2188
2016
Q1 		$81K Buy
10,700
+7,700
+257% +$51.5K ﹤0.01% 2971
2015
Q4 		$21K Sell
3,000
-13,200
-81% -$88.6K ﹤0.01% 3894
2015
Q3 		$93K Sell
16,200
-118,200
-88% -$797K ﹤0.01% 3098
2015
Q2 		$930K Sell
134,400
-63,700
-32% -$500K 0.01% 1268
2015
Q1 		$1.56M Buy
198,100
+179,500
+965% +$2.96M 0.02% 777
2014
Q4 		$369K Buy
18,600
+15,920
+594% +$282K 0.01% 1795
2014
Q3 		$46K Sell
2,680
-13,040
-83% -$249K ﹤0.01% 3576
2014
Q2 		$282K Sell
15,720
-9,420
-37% -$159K ﹤0.01% 2104
2014
Q1 		$424K Sell
25,140
-14,500
-37% -$241K 0.01% 1771
2013
Q4 		$624K Buy
39,640
+27,880
+237% +$430K 0.01% 1497
2013
Q3 		$199K Sell
11,760
-26,520
-69% -$451K ﹤0.01% 2390
2013
Q2 		$576K Buy
+38,280
New +$511K 0.01% 1230

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

Group One Trading's RBBN Position: Q1 2026 in Review

Group One Trading opened a new position in Ribbon Communications (RBBN) in Q1 2026: 314 shares worth $666. The stake represents ﹤0.01% of the portfolio and ranks #7283 among its holdings. This is a return to the name: Group One Trading previously reported a position in RBBN as recently as Q4 2024.

Group One Trading first reported a position in RBBN in Q3 2013 and has held it in 42 quarters since. The position peaked at $1.26M in Q2 2021. 150 funds tracked by Wall St. Rank hold RBBN as of Q1 2026.

  • Group One Trading held 314 shares of Ribbon Communications worth $666 as of Q1 2026.
  • Ribbon Communications was a new Group One Trading position in Q1 2026.
  • Ribbon Communications made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #7283 holding.
  • Group One Trading first reported a position in Ribbon Communications in Q3 2013 and has held it in 42 quarters since.
  • Group One Trading's Ribbon Communications position peaked at $1.26M in Q2 2021.
  • 150 funds tracked by Wall St. Rank held Ribbon Communications as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.