CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in RBBN — Ribbon Communications Inc.
CIK 884546
SAN FRANCISCO, CA
Position in RBBN
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$1,872,372
+$371,067 QoQ
Shares Held
800,159
+13.0% QoQ
Ownership
0.447%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#19
of 161 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in RBBN Over Time
Shares Held
Position Value (USD)
Position in Software - Application
Technology · as of Jun 30, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $14,280,549,041 across 130 Software - Application names. RBBN ranks #105 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ADP |
Automatic Data Processing Inc
|
12,729,777 | $2,850,833,558 | |
| 2 | UBER |
Uber Technologies, Inc
|
15,956,738 | $1,151,438,214 | |
| 3 | CRM |
Salesforce, Inc.
|
6,600,642 | $1,034,056,575 | |
| 4 | PAYX |
Paychex Inc
|
10,402,177 | $1,022,846,063 | |
| 5 | CDNS |
Cadence Design Systems Inc
|
2,192,940 | $823,054,240 | |
| 6 | NOW |
ServiceNow, Inc.
|
8,080,617 | $802,243,655 | |
| 7 | ADBE |
Adobe Inc.
|
3,401,534 | $697,382,499 | |
| 8 | DDOG |
Datadog, Inc.
|
2,648,649 | $689,602,253 |
All Filings in RBBN
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,872,372 | 800,159 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $1,501,305 | 708,163 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $2,214,933 | 769,074 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $2,924,050 | 769,487 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $3,072,453 | 766,198 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $2,931,301 | 747,781 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $3,164,790 | 760,767 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $2,479,399 | 762,892 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $2,463,907 | 748,908 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $2,221,804 | 694,314 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $2,001,762 | 690,263 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $1,826,414 | 681,498 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $1,840,071 | 659,524 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $2,125,177 | 621,397 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $1,795,130 | 643,416 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $1,168,008 | 526,130 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $2,277,321 | 749,119 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $2,373,564 | 768,144 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $4,435,678 | 733,170 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $4,283,444 | 716,295 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $5,423,920 | 712,736 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $5,695,432 | 693,719 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $4,356,692 | 664,130 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $2,613,798 | 675,400 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $2,202,670 | 560,476 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $1,533,343 | 506,054 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||