Welcome to our dedicated page for Ribbon Communications SEC filings (Ticker: RBBN), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Ribbon Communications Inc. filings document public-company reporting for a Nasdaq-listed provider of communications software, IP routing and optical networking solutions. Current Reports on Form 8-K record quarterly and annual financial-result releases, exhibits furnished with earnings announcements, and leadership or board changes under Item 5.02.
Ribbon’s proxy materials describe annual meeting matters, board composition, governance arrangements and stockholder voting items. The filing record also identifies the company’s common stock, par value $0.0001, listed on the Nasdaq Global Select Market under RBBN, and connects formal disclosures to its service provider, enterprise, critical infrastructure, government and defense customer categories.
Ribbon Communications Inc. announced that Dan Redington, its Executive Vice President, Global Sales, will leave the company effective September 30, 2025 to pursue other opportunities. The company stated that it expects to appoint a new head of Global Sales before the end of the third quarter of 2025, indicating a planned leadership transition in its global sales organization.
Paradigm Capital Management, Inc. filed an amendment to Schedule 13G reporting ownership of Ribbon Communications Inc. common stock. Paradigm holds 8,748,200 shares, representing 4.96% of the class, and reports sole voting and sole dispositive power over those shares. The filing indicates the position was measured as of 06/30/2025 and certified on 08/14/2025. Paradigm classifies itself as an investment adviser and states the shares are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. The filing notes ownership is 5% or less of the class and no group affiliations are reported.
Form 4 filing summary – Ribbon Communications Inc. (RBBN)
Director R. Stewart Ewing Jr. reported two equity transactions on 16-17 June 2025. First, he exercised 48,365 previously-granted restricted stock units (RSUs) at a zero cash cost (Code “M”), receiving an equivalent number of common shares. His direct shareholding consequently rose to 197,391 shares.
Second, the director received a new award of 42,500 RSUs on 16 June 2025 (Code “A”). These RSUs are scheduled to vest on 16 June 2026, or earlier at the 2026 Annual Meeting if he leaves the Board at that time. Post-transaction, Mr. Ewing holds 42,500 unvested RSUs in addition to his common-stock position. All reported positions are held directly.
No sale of shares occurred, no cash was exchanged, and there is no indication of hedging activity. The filing reflects routine director compensation and equity retention without altering the company’s capital structure.
Form 4 Overview – Ribbon Communications Inc. (RBBN)
Director Shaul Shani reported two equity transactions dated 16-17 June 2025:
- Grant of 42,500 Restricted Stock Units (RSUs) on 16 Jun 2025 (Code A). These RSUs vest on 16 Jun 2026, or earlier at the 2026 annual meeting if the director is not re-elected.
- Conversion of 48,365 fully-vested RSUs into common shares on 17 Jun 2025 (Code M). The underlying RSUs were originally awarded on 17 Jun 2024 and vested in full after one year.
Following these transactions, Shani’s direct common-stock ownership increased to 153,711 shares, and he now holds 42,500 unvested RSUs that can settle one-for-one into additional common shares when vested. No open-market purchases or sales were reported, and all exercises were priced at $0, consistent with RSU settlements.
Because the filing reflects routine equity-compensation activity without any disposition of shares for cash, it is unlikely to have a material effect on Ribbon Communications’ near-term fundamentals or share-float dynamics. Nevertheless, the director’s larger share position marginally tightens equity alignment with public shareholders.
Ribbon Communications Inc. (RBBN) – Form 4 insider activity
Director Bruns H. Grayson filed a Form 4 on 18-Jun-2025 reporting two equity transactions:
- RSU grant: 42,500 restricted stock units awarded on 16-Jun-2025 (Code A). The units vest on 16-Jun-2026, or earlier at the 2026 annual meeting if the director does not stand for, or is not re-elected to, the board.
- RSU conversion: 48,365 RSUs granted on 17-Jun-2024 fully vested on 17-Jun-2025 and were converted into an equal number of common shares (Code M). No cash consideration was paid.
Following the conversion, the director’s direct beneficial ownership rose to 738,413 common shares. No shares were sold and no open-market purchases occurred; all movements stem from equity compensation. The RSU grant represents potential future dilution of 42,500 shares once vested.