secwatch.observer — SEC 8-K summary
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Issuer:     Ribbon Communications Inc. (RBBN)
CIK:        0001708055
Form:       8-K
Filed at:   2026-04-15T23:59:59+00:00
Accession:  0001104659-26-043511
Event type: leadership
Sentiment:  neutral
Materiality: 0.35
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Ribbon appoints Louis Silver to Board of Directors, board expands to nine
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- Louis Silver appointed to Board effective April 15, 2026; board increases to nine members, six independent.
- Silver is designee of Swarth Investments Ltd. under stockholders' agreement.
- Silver brings over 25 years board experience; currently serves on Ceva, Inc. board as Audit Committee Chairman.
- He will receive $60k annual retainer and RSUs valued at ~$170k pro-rated, plus potential committee retainers.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1708055/000110465926043511/0001104659-26-043511-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1708055/000110465926043511/tm2611696d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-26-043511

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer