Two Sigma Investments
RBBN icon

Two Sigma Investments’s Ribbon Communications RBBN Stock Holding History

Two Sigma Investments’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 		– Sell
-16,984
Closed -$48.9K – 4865
2025
Q4 		$48.9K Sell
16,984
-14,016
-45% -$45.2K ﹤0.01% 3940
2025
Q3 		$118K Buy
31,000
+10,189
+49% +$40K ﹤0.01% 3450
2025
Q2 		$83.5K Buy
+20,811
New +$75K ﹤0.01% 3014
2025
Q1 		– Sell
-14,487
Closed -$60.3K – 3443
2024
Q4 		$60.3K Buy
14,487
+128
+0.9% +$483 ﹤0.01% 3024
2024
Q3 		$46.7K Sell
14,359
-19,447
-58% -$63.1K ﹤0.01% 2974
2024
Q2 		$111K Sell
33,806
-5,306
-14% -$16.1K ﹤0.01% 2810
2024
Q1 		$125K Sell
39,112
-6,735
-15% -$20.5K ﹤0.01% 2802
2023
Q4 		$133K Sell
45,847
-65,462
-59% -$147K ﹤0.01% 2913
2023
Q3 		$298K Sell
111,309
-27,813
-20% -$81.2K ﹤0.01% 2488
2023
Q2 		$388K Sell
139,122
-266,868
-66% -$740K ﹤0.01% 2430
2023
Q1 		$1.39M Buy
405,990
+60,441
+17% +$221K ﹤0.01% 1672
2022
Q4 		$964K Buy
345,549
+225,754
+188% +$585K ﹤0.01% 1712
2022
Q3 		$266K Sell
119,795
-49,206
-29% -$156K ﹤0.01% 2005
2022
Q2 		$514K Sell
169,001
-10,072
-6% -$30.4K ﹤0.01% 1815
2022
Q1 		$553K Buy
+179,073
New +$734K ﹤0.01% 1973
2021
Q4 		– Sell
-36,942
Closed -$221K – 4768
2021
Q3 		$221K Buy
+36,942
New +$249K ﹤0.01% 3897
2021
Q2 		– Sell
-20,283
Closed -$167K – 4476
2021
Q1 		$167K Buy
20,283
+4,179
+26% +$34.6K ﹤0.01% 3655
2020
Q4 		$106K Buy
+16,104
New +$85K ﹤0.01% 3209
2020
Q3 		– Sell
-46,204
Closed -$182K – 3476
2020
Q2 		$182K Sell
46,204
-90,635
-66% -$329K ﹤0.01% 2672
2020
Q1 		$415K Buy
136,839
+26,096
+24% +$78.4K ﹤0.01% 2070
2019
Q4 		$343K Buy
110,743
+65,374
+144% +$260K ﹤0.01% 3085
2019
Q3 		$265K Sell
45,369
-74,955
-62% -$394K ﹤0.01% 3032
2019
Q2 		$588K Sell
120,324
-15,532
-11% -$75.8K ﹤0.01% 2371
2019
Q1 		$700K Buy
135,856
+117,853
+655% +$631K ﹤0.01% 2043
2018
Q4 		$87K Sell
18,003
-26,167
-59% -$152K ﹤0.01% 2825
2018
Q3 		$302K Sell
44,170
-18,142
-29% -$129K ﹤0.01% 2769
2018
Q2 		$444K Sell
62,312
-17,639
-22% -$103K ﹤0.01% 2723
2018
Q1 		$408K Sell
79,951
-36,717
-31% -$238K ﹤0.01% 2595
2017
Q4 		$902K Sell
116,668
-58,261
-33% -$447K ﹤0.01% 2039
2017
Q3 		$1.34M Sell
174,929
-150,811
-46% -$1.08M ﹤0.01% 1547
2017
Q2 		$2.42M Buy
325,740
+9,491
+3% +$69.9K 0.01% 1288
2017
Q1 		$2.08M Buy
316,249
+158,030
+100% +$1M 0.01% 1429
2016
Q4 		$997K Sell
158,219
-67,381
-30% -$443K ﹤0.01% 2013
2016
Q3 		$1.75M Sell
225,600
-190,564
-46% -$1.67M 0.01% 1557
2016
Q2 		$3.62M Buy
416,164
+25,388
+6% +$211K 0.02% 925
2016
Q1 		$2.94M Buy
390,776
+50,258
+15% +$336K 0.01% 949
2015
Q4 		$2.43M Buy
+340,518
New +$2.28M 0.01% 993
2015
Q2 		– Sell
-294,283
Closed -$2.32M – 3043
2015
Q1 		$2.32M Buy
294,283
+286,619
+3,740% +$4.72M 0.01% 1088
2014
Q4 		$152K Buy
+7,664
New +$136K ﹤0.01% 2093
2014
Q3 		– Sell
-66,652
Closed -$1.2M – 1993
2014
Q2 		$1.2M Buy
66,652
+63,768
+2,211% +$1.08M 0.01% 1237
2014
Q1 		$49K Sell
2,884
-21,428
-88% -$356K ﹤0.01% 1922
2013
Q4 		$383K Sell
24,312
-14,737
-38% -$227K ﹤0.01% 1778
2013
Q3 		$660K Buy
39,049
+19,463
+99% +$331K ﹤0.01% 1195
2013
Q2 		$295K Buy
+19,586
New +$261K ﹤0.01% 1639

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

Two Sigma Investments's RBBN Position: Q1 2026 in Review

Two Sigma Investments sold out of Ribbon Communications (RBBN) in Q1 2026, closing a stake of 16,984 shares — an estimated $48.9K sold.

Two Sigma Investments first reported a position in RBBN in Q2 2013 and held it in 44 quarters. The position peaked at $3.62M in Q2 2016. 150 funds tracked by Wall St. Rank hold RBBN as of Q1 2026.

  • Two Sigma Investments reported no remaining Ribbon Communications position as of Q1 2026 after selling out during the quarter.
  • Two Sigma Investments sold 16,984 Ribbon Communications shares in Q1 2026, an estimated $48.9K.
  • Two Sigma Investments first reported a position in Ribbon Communications in Q2 2013 and held it in 44 quarters.
  • Two Sigma Investments's Ribbon Communications position peaked at $3.62M in Q2 2016.
  • 150 funds tracked by Wall St. Rank held Ribbon Communications as of Q1 2026.

Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.