Charles Schwab
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Charles Schwab’s Ribbon Communications RBBN Stock Holding History

Charles Schwab’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 		$1.87M Buy
800,159
+91,996
+13% +$243K ﹤0.01% 2813
2026
Q1 		$1.5M Sell
708,163
-60,911
-8% -$146K ﹤0.01% 2790
2025
Q4 		$2.21M Sell
769,074
-413
-0.1% -$1.33K ﹤0.01% 2732
2025
Q3 		$2.92M Buy
769,487
+3,289
+0.4% +$12.9K ﹤0.01% 2658
2025
Q2 		$3.07M Buy
766,198
+18,417
+2% +$66.4K ﹤0.01% 2527
2025
Q1 		$2.93M Sell
747,781
-12,986
-2% -$54.7K ﹤0.01% 2495
2024
Q4 		$3.16M Sell
760,767
-2,125
-0.3% -$8.02K ﹤0.01% 2535
2024
Q3 		$2.48M Buy
762,892
+13,984
+2% +$45.4K ﹤0.01% 2645
2024
Q2 		$2.46M Buy
748,908
+54,594
+8% +$166K ﹤0.01% 2632
2024
Q1 		$2.22M Buy
694,314
+4,051
+0.6% +$12.3K ﹤0.01% 2556
2023
Q4 		$2M Buy
690,263
+8,765
+1% +$19.7K ﹤0.01% 2622
2023
Q3 		$1.83M Buy
681,498
+21,974
+3% +$64.2K ﹤0.01% 2627
2023
Q2 		$1.84M Buy
659,524
+38,127
+6% +$106K ﹤0.01% 2576
2023
Q1 		$2.13M Sell
621,397
-22,019
-3% -$80.5K ﹤0.01% 2514
2022
Q4 		$1.8M Buy
643,416
+117,286
+22% +$304K ﹤0.01% 2602
2022
Q3 		$1.17M Sell
526,130
-222,989
-30% -$706K ﹤0.01% 2736
2022
Q2 		$2.28M Sell
749,119
-19,025
-2% -$57.5K ﹤0.01% 2534
2022
Q1 		$2.37M Buy
768,144
+34,974
+5% +$143K ﹤0.01% 2589
2021
Q4 		$4.44M Buy
733,170
+16,875
+2% +$100K ﹤0.01% 2405
2021
Q3 		$4.28M Buy
716,295
+3,559
+0.5% +$24K ﹤0.01% 2449
2021
Q2 		$5.42M Buy
712,736
+19,017
+3% +$146K ﹤0.01% 2309
2021
Q1 		$5.7M Buy
693,719
+29,589
+4% +$245K ﹤0.01% 2236
2020
Q4 		$4.36M Sell
664,130
-11,270
-2% -$59.5K ﹤0.01% 2290
2020
Q3 		$2.61M Buy
675,400
+114,924
+21% +$485K ﹤0.01% 2399
2020
Q2 		$2.2M Buy
560,476
+54,422
+11% +$198K ﹤0.01% 2389
2020
Q1 		$1.53M Buy
506,054
+158,764
+46% +$477K ﹤0.01% 2373
2019
Q4 		$1.08M Buy
347,290
+8,647
+3% +$34.4K ﹤0.01% 2571
2019
Q3 		$1.98M Buy
338,643
+24,856
+8% +$131K ﹤0.01% 2383
2019
Q2 		$1.53M Buy
313,787
+22,134
+8% +$108K ﹤0.01% 2446
2019
Q1 		$1.5M Buy
291,653
+11,188
+4% +$59.9K ﹤0.01% 2443
2018
Q4 		$1.35M Buy
280,465
+3,833
+1% +$22.2K ﹤0.01% 2444
2018
Q3 		$1.89M Sell
276,632
-420
-0.2% -$2.99K ﹤0.01% 2438
2018
Q2 		$1.97M Buy
277,052
+46,430
+20% +$272K ﹤0.01% 2385
2018
Q1 		$1.18M Buy
230,622
+10,122
+5% +$65.5K ﹤0.01% 2478
2017
Q4 		$1.71M Buy
220,500
+22,978
+12% +$176K ﹤0.01% 2353
2017
Q3 		$1.51M Buy
197,522
+10,864
+6% +$77.7K ﹤0.01% 2381
2017
Q2 		$1.39M Sell
186,658
-522
-0.3% -$3.85K ﹤0.01% 2345
2017
Q1 		$1.23M Buy
187,180
+10,602
+6% +$67.2K ﹤0.01% 2363
2016
Q4 		$1.11M Buy
176,578
+4,548
+3% +$29.9K ﹤0.01% 2393
2016
Q3 		$1.34M Buy
172,030
+8,180
+5% +$71.5K ﹤0.01% 2309
2016
Q2 		$1.42M Buy
163,850
+2,520
+2% +$21K ﹤0.01% 2218
2016
Q1 		$1.22M Buy
161,330
+3,060
+2% +$20.4K ﹤0.01% 2264
2015
Q4 		$1.13M Buy
158,270
+3,900
+3% +$26.2K ﹤0.01% 2339
2015
Q3 		$883K Buy
154,370
+10,254
+7% +$69.1K ﹤0.01% 2431
2015
Q2 		$998K Sell
144,116
-6,600
-4% -$51.8K ﹤0.01% 2422
2015
Q1 		$1.19M Buy
150,716
+6,977
+5% +$115K ﹤0.01% 2312
2014
Q4 		$2.85M Buy
143,739
+9,824
+7% +$174K ﹤0.01% 1809
2014
Q3 		$2.29M Buy
133,915
+2,724
+2% +$52K ﹤0.01% 1889
2014
Q2 		$2.35M Sell
131,191
-3,726
-3% -$63K ﹤0.01% 1892
2014
Q1 		$2.27M Buy
134,917
+4,258
+3% +$70.8K ﹤0.01% 1881
2013
Q4 		$2.06M Buy
130,659
+12,395
+10% +$191K ﹤0.01% 1910
2013
Q3 		$2.04M Buy
118,264
+4,809
+4% +$81.7K ﹤0.01% 1830
2013
Q2 		$1.71M Buy
+113,455
New +$1.51M ﹤0.01% 1853

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

Charles Schwab's RBBN Position: Q2 2026 in Review

Charles Schwab increased its Ribbon Communications (RBBN) stake by 13% in Q2 2026, buying an estimated $243K and bringing the position to 800,159 shares worth $1.87M. The position accounts for ﹤0.01% of the portfolio, ranked #2813.

Charles Schwab first reported a position in RBBN in Q2 2013 and has held it in 53 quarters since. The position peaked at $5.7M in Q1 2021. 160 funds tracked by Wall St. Rank hold RBBN as of Q2 2026.

  • Charles Schwab held 800,159 shares of Ribbon Communications worth $1.87M as of Q2 2026.
  • Charles Schwab bought 91,996 Ribbon Communications shares in Q2 2026, an estimated $243K.
  • Ribbon Communications made up ﹤0.01% of Charles Schwab's portfolio in Q2 2026, its #2813 holding.
  • Charles Schwab first reported a position in Ribbon Communications in Q2 2013 and has held it in 53 quarters since.
  • Charles Schwab's Ribbon Communications position peaked at $5.7M in Q1 2021.
  • 160 funds tracked by Wall St. Rank held Ribbon Communications as of Q2 2026.

Based on Charles Schwab's 13F filing for Q2 2026, filed 14 Aug 2026.