# Ribbon Communications Inc.: filings

RBBN · Nasdaq · CIK 1708055 · [Technology](/sectors/technology.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/rbbn.md) · [Financials](/companies/rbbn/financials.md) · [Filings](/companies/rbbn/filings.md) · [Insiders](/companies/rbbn/insiders.md)

## Reports and events: 149 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 429, 8-K 93, 3 40, 10-Q 27, 4/A 12, CORRESP 11, 10-K 9, DEF 14A 9, S-8 9, SD 9, UPLOAD 9, 144 7, SC 13G/A 6, 8-K/A 4, DEFA14A 4, EFFECT 3, S-4/A 3, SC 13D/A 3, SC 13G 3, 10-K/A 2, ARS 2, PRE 14A 2, S-3 2, SC 13D 2, 424B3 1, 8-K12B 1, D 1, DEFM14A 1, NT 10-K 1, NT 10-Q 1, PREM14A 1, S-3/A 1, S-4 1, SCHEDULE 13G/A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-07-31 | 11:26 ET | [10-Q](/filings/0001708055-26-000070.md) | Quarterly report, period 2026-06-30 | 0001708055-26-000070 |
| 2026-07-28 | 16:09 ET | [8-K](/filings/0001104659-26-087534.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-087534 |
| 2026-06-17 | 09:19 ET | [8-K](/filings/0001104659-26-074930.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-074930 |
| 2026-06-05 | 16:15 ET | [8-K](/filings/0001104659-26-070981.md) | 5.07 Shareholder vote results | 0001104659-26-070981 |
| 2026-05-06 | 12:49 ET | [10-Q](/filings/0001708055-26-000028.md) | Quarterly report, period 2026-03-31 | 0001708055-26-000028 |
| 2026-04-28 | 16:15 ET | [8-K](/filings/0001104659-26-050356.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-26-050356 |
| 2026-04-17 | 08:30 ET | [DEF 14A](/filings/0001104659-26-044643.md) | Proxy statement, period 2026-06-03 | 0001104659-26-044643 |
| 2026-04-15 | 08:45 ET | [8-K](/filings/0001104659-26-043511.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-26-043511 |
| 2026-02-26 | 12:38 ET | [10-K](/filings/0001708055-26-000012.md) | Annual report, period 2025-12-31 | 0001708055-26-000012 |
| 2026-02-05 | 16:15 ET | [8-K](/filings/0001104659-26-010898.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-010898 |
| 2025-10-23 | 11:02 ET | [10-Q](/filings/0001708055-25-000035.md) | Quarterly report, period 2025-09-30 | 0001708055-25-000035 |
| 2025-10-22 | 16:10 ET | [8-K](/filings/0001104659-25-101530.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-101530 |
| 2025-08-29 | 16:45 ET | [8-K](/filings/0001104659-25-085750.md) | 5.02 Departure or appointment of officers or directors | 0001104659-25-085750 |
| 2025-07-24 | 14:23 ET | [10-Q](/filings/0001708055-25-000007.md) | Quarterly report, period 2025-06-30 | 0001708055-25-000007 |
| 2025-07-23 | 16:10 ET | [8-K](/filings/0001104659-25-070009.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-070009 |
| 2025-05-30 | 16:32 ET | [8-K](/filings/0001104659-25-054927.md) | 5.02 Departure or appointment of officers or directors; 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001104659-25-054927 |
| 2025-04-30 | 12:19 ET | [10-Q](/filings/0001708055-25-000003.md) | Quarterly report, period 2025-03-31 | 0001708055-25-000003 |
| 2025-04-29 | 16:15 ET | [8-K](/filings/0001104659-25-041242.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-041242 |
| 2025-04-14 | 11:30 ET | [DEF 14A](/filings/0001104659-25-034540.md) | Proxy statement, period 2025-05-28 | 0001104659-25-034540 |
| 2025-02-27 | 14:31 ET | [10-K](/filings/0001558370-25-001773.md) | Annual report, period 2024-12-31 | 0001558370-25-001773 |
| 2025-02-12 | 16:11 ET | [8-K](/filings/0001104659-25-012169.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-012169 |
| 2024-10-24 | 14:03 ET | [10-Q](/filings/0001708055-24-000014.md) | Quarterly report, period 2024-09-30 | 0001708055-24-000014 |
| 2024-10-23 | 16:15 ET | [8-K](/filings/0001104659-24-110863.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-110863 |
| 2024-10-04 | 16:30 ET | [8-K](/filings/0001104659-24-106285.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-24-106285 |
| 2024-08-13 | 09:24 ET | [8-K](/filings/0001104659-24-088719.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-24-088719 |
| 2024-07-29 | 14:49 ET | [10-Q](/filings/0001708055-24-000010.md) | Quarterly report, period 2024-06-30 | 0001708055-24-000010 |
| 2024-07-24 | 16:11 ET | [8-K](/filings/0001104659-24-082334.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-082334 |
| 2024-06-24 | 17:19 ET | [8-K](/filings/0001104659-24-074398.md) | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-074398 |
| 2024-06-06 | 16:15 ET | [8-K](/filings/0001104659-24-069090.md) | 5.07 Shareholder vote results | 0001104659-24-069090 |
| 2024-05-15 | 15:43 ET | [10-Q](/filings/0001708055-24-000007.md) | Quarterly report, period 2024-03-31 | 0001708055-24-000007 |
| 2024-04-24 | 08:03 ET | [8-K](/filings/0001104659-24-050937.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-050937 |
| 2024-04-12 | 16:17 ET | [DEF 14A](/filings/0001104659-24-046780.md) | Proxy statement, period 2024-06-04 | 0001104659-24-046780 |
| 2024-03-13 | 16:31 ET | [8-K](/filings/0001104659-24-033957.md) | 5.08 Item not in the standard list; 8.01 Other events | 0001104659-24-033957 |
| 2024-02-28 | 13:10 ET | [10-K](/filings/0001708055-24-000003.md) | Annual report, period 2023-12-31 | 0001708055-24-000003 |
| 2024-02-14 | 16:06 ET | [8-K](/filings/0001104659-24-023610.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-023610 |
| 2023-10-26 | 13:05 ET | [10-Q](/filings/0001708055-23-000014.md) | Quarterly report, period 2023-09-30 | 0001708055-23-000014 |
| 2023-10-25 | 16:12 ET | [8-K](/filings/0001104659-23-111433.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-23-111433 |
| 2023-08-04 | 16:30 ET | [8-K](/filings/0001104659-23-087871.md) | 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001104659-23-087871 |
| 2023-07-27 | 14:54 ET | [10-Q](/filings/0001708055-23-000010.md) | Quarterly report, period 2023-06-30 | 0001708055-23-000010 |
| 2023-07-26 | 16:09 ET | [8-K](/filings/0001104659-23-084292.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-23-084292 |
| 2023-06-20 | 16:14 ET | [DEF 14A](/filings/0001104659-23-072894.md) | Proxy statement, period 2023-08-03 | 0001104659-23-072894 |
| 2023-05-26 | 16:31 ET | [8-K](/filings/0001104659-23-065499.md) | 5.02 Departure or appointment of officers or directors | 0001104659-23-065499 |
| 2023-04-28 | 14:04 ET | [10-Q](/filings/0001708055-23-000007.md) | Quarterly report, period 2023-03-31 | 0001708055-23-000007 |
| 2023-04-28 | 11:05 ET | [10-K/A](/filings/0001104659-23-052342.md) | Annual report, amended, period 2022-12-31 | 0001104659-23-052342 |
| 2023-04-26 | 16:09 ET | [8-K](/filings/0001104659-23-050347.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-23-050347 |
| 2023-03-31 | 11:42 ET | [10-K](/filings/0001708055-23-000003.md) | Annual report, period 2022-12-31 | 0001708055-23-000003 |
| 2023-03-30 | 16:43 ET | [8-K](/filings/0001104659-23-039214.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 5.03 Amendment to articles or bylaws; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-23-039214 |
| 2023-03-27 | 08:30 ET | [8-K](/filings/0001104659-23-036895.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-23-036895 |
| 2023-03-13 | 13:08 ET | [8-K](/filings/0001104659-23-031693.md) | 7.01 Regulation FD disclosure | 0001104659-23-031693 |
| 2023-02-15 | 16:09 ET | [8-K](/filings/0001104659-23-022382.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-23-022382 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 27, 2026, 16:21 ET. No prices; not investment advice.