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Dynamic Technology Lab’s Ribbon Communications RBBN Stock Holding History

Dynamic Technology Lab’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 		$126K Sell
59,495
-31,531
-35% -$75.5K 0.02% 785
2025
Q4 		$262K Buy
91,026
+20,982
+30% +$67.7K 0.06% 533
2025
Q3 		$266K Buy
+70,044
New +$275K 0.05% 597
2025
Q2 		– Sell
-31,554
Closed -$124K – 1276
2025
Q1 		$124K Buy
+31,554
New +$133K 0.02% 890
2024
Q2 		– Sell
-14,858
Closed -$48K – 1301
2024
Q1 		$48K Buy
+14,858
New +$45.2K 0.01% 990
2023
Q2 		– Sell
-30,963
Closed -$106K – 1356
2023
Q1 		$106K Buy
+30,963
New +$113K 0.01% 969
2020
Q3 		– Sell
-34,403
Closed -$135K – 1281
2020
Q2 		$135K Buy
34,403
+18,654
+118% +$67.7K 0.02% 861
2020
Q1 		$48K Buy
+15,749
New +$47.3K 0.01% 945
2019
Q2 		– Sell
-28,325
Closed -$146K – 1231
2019
Q1 		$146K Buy
+28,325
New +$152K 0.02% 869
2016
Q3 		– Sell
-16,962
Closed -$148K – 1103
2016
Q2 		$148K Sell
16,962
-45,493
-73% -$379K 0.04% 761
2016
Q1 		$470K Buy
62,455
+47,935
+330% +$320K 0.13% 293
2015
Q4 		$104K Sell
14,520
-18,677
-56% -$125K 0.03% 806
2015
Q3 		$190K Buy
+33,197
New +$224K 0.06% 661
2015
Q1 		– Sell
-17,032
Closed -$338K – 842
2014
Q4 		$338K Buy
17,032
+11,474
+206% +$203K 0.17% 220
2014
Q3 		$95K Buy
+5,558
New +$106K 0.05% 579
2014
Q2 		– Sell
-7,073
Closed -$119K – 793
2014
Q1 		$119K Buy
+7,073
New +$118K 0.07% 509

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

Dynamic Technology Lab's RBBN Position: Q1 2026 in Review

Dynamic Technology Lab reduced its Ribbon Communications (RBBN) stake by 35% in Q1 2026, selling an estimated $75.5K and leaving 59,495 shares worth $126K. The position accounts for 0.02% of the portfolio, ranked #785.

Dynamic Technology Lab first reported a position in RBBN in Q1 2014 and has held it in 16 quarters since. The position peaked at $470K in Q1 2016. 150 funds tracked by Wall St. Rank hold RBBN as of Q1 2026.

  • Dynamic Technology Lab held 59,495 shares of Ribbon Communications worth $126K as of Q1 2026.
  • Dynamic Technology Lab sold 31,531 Ribbon Communications shares in Q1 2026, an estimated $75.5K.
  • Ribbon Communications made up 0.02% of Dynamic Technology Lab's portfolio in Q1 2026, its #785 holding.
  • Dynamic Technology Lab first reported a position in Ribbon Communications in Q1 2014 and has held it in 16 quarters since.
  • Dynamic Technology Lab's Ribbon Communications position peaked at $470K in Q1 2016.
  • 150 funds tracked by Wall St. Rank held Ribbon Communications as of Q1 2026.

Based on Dynamic Technology Lab's 13F filing for Q1 2026, filed 15 May 2026.