Ribbon Communications Inc.

CHARLES SCHWAB INVESTMENT MANAGEMENT INC RBBN

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/13/2026

Shares

769,074

Value ($000)

2,215

Weight

0.0%

2019 Q4 - 2025 Q4 (25 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/13/2026	2,215	0.0%	769,074	12/31/2025
2025 Q3	11/10/2025	2,924	0.0%	769,487	9/30/2025
2025 Q2	8/12/2025	3,072	0.0%	766,198	6/30/2025
2025 Q1	9/15/2025	2,931	0.0%	747,781	3/31/2025
2024 Q4	2/6/2025	3,165	0.0%	760,767	12/31/2024
2024 Q3	11/12/2024	2,479	0.0%	762,892	9/30/2024
2024 Q2	8/12/2024	2,464	0.0%	748,908	6/30/2024
2024 Q1	5/9/2024	2,222	0.0%	694,314	3/31/2024
2023 Q4	2/6/2024	2,002	0.0%	690,263	12/31/2023
2023 Q3	11/8/2023	1,826	0.0%	681,498	9/30/2023
2023 Q2	8/10/2023	1,840	0.0%	659,524	6/30/2023
2023 Q1	5/12/2023	2,125	0.0%	621,397	3/31/2023
2022 Q4	2/13/2023	1,795	0.0%	643,416	12/31/2022
2022 Q3	11/14/2022	1,169	0.0%	526,130	9/30/2022
2022 Q2	8/15/2022	2,278	0.0%	749,119	6/30/2022
2022 Q1	5/13/2022	2,374	0.0%	768,144	3/31/2022
2021 Q4	2/11/2022	4,436	0.0%	733,170	12/31/2021
2021 Q3	11/16/2021	4,284	0.0%	716,295	9/30/2021
2021 Q2	8/16/2021	5,424	0.0%	712,736	6/30/2021
2021 Q1	5/17/2021	5,696	0.0%	693,719	3/31/2021
2020 Q4	2/16/2021	4,357	0.0%	664,130	12/31/2020
2020 Q3	11/13/2020	2,614	0.0%	675,400	9/30/2020
2020 Q2	8/20/2020	2,203	0.0%	560,476	6/30/2020
2020 Q1	5/15/2020	1,534	0.0%	506,054	3/31/2020
2019 Q4	2/7/2020	1,077	0.0%	347,290	12/31/2019