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. executive vice president and chief operating officer Sam Bucci received new equity awards in the form of restricted and performance-based stock units tied to Ribbon's common stock. These awards are part of his compensation and do not represent open-market purchases or sales.
The filing reports grants of 250,000 restricted stock units (RSUs) and performance-based RSUs (PSUs) totaling 250,000 underlying shares of common stock at a conversion price of $0.00 per share-equivalent. The RSUs vest one-third on June 15, 2027, with the remaining two-thirds vesting in four equal semi-annual installments through June 15, 2029, encouraging multi-year retention.
The PSUs convert to common stock on a one-for-one basis but only if specified performance goals are achieved. One PSU tranche vests based on annual goals set by the Compensation Committee for three fiscal years, with potential issuance from zero up to 100% of the target shares, vesting on April 15, 2029. Another PSU tranche is tied to total shareholder return relative to a peer index over three fiscal years, with potential issuance from zero up to 125% of target shares, also vesting on April 15, 2029.
Ribbon Communications EVP Stephen J. McCaffery received multiple equity awards in the form of restricted and performance-based stock units that convert into Common Stock on a one-for-one basis. These awards are compensation grants at no purchase price, not open-market share purchases.
He was granted RSUs that vest as to one-third on June 15, 2027, with the remaining two-thirds vesting in four equal semi-annual installments through June 15, 2029. Additional performance-based RSUs (PSUs) were granted, where the number of shares ultimately issued will depend on achievement of annual goals set by the Compensation Committee and on the company’s total shareholder return versus a peer index over three fiscal years, with PSUs scheduled to vest on April 15, 2029 and payout ranging from zero up to 100% or 125% of target depending on the specific award.
Marmurek Eric S reported acquisition or exercise transactions in this Form 4 filing.
Ribbon Communications Inc. reported that EVP and Chief Financial Officer Eric S. Marmurek received new equity awards in the form of restricted and performance-based stock units. On June 15, 2026, he was granted 60,000 PSUs, 90,000 Performance-Based RSUs (PSUs), and 150,000 RSUs, each convertible into Common Stock on a one-for-one basis.
The 150,000 RSUs vest over time, with one-third vesting on June 15, 2027 and the remaining two-thirds vesting in four equal semi-annual installments through June 15, 2029. The PSUs can result in between zero and up to 100% or 125% of the target share amounts, depending on annual performance goals or total shareholder return versus a peer index over three fiscal years, and are scheduled to vest on April 15, 2029. These are compensation-related grants rather than open-market share purchases or sales.
Macken Patrick W reported acquisition or exercise transactions in this Form 4 filing.
Ribbon Communications EVP and Chief Legal Officer Patrick W. Macken received new equity awards. On June 15, 2026 he was granted 65,000 PSUs, 97,500 performance-based RSUs (PSUs), and 162,500 RSUs, each convertible into Common Stock on a one-for-one basis. The RSUs vest from June 15, 2027 through June 15, 2029, while the PSUs vest on April 15, 2029 based on annual performance goals and relative total shareholder return, which can yield from zero up to the stated target (or 125% of target for one PSU grant).
Ribbon Communications director Tanya Tamone reported routine equity compensation activity. On June 16, 2026, she exercised 42,500 RSUs into the same number of common shares, bringing her direct common stock holdings to 223,300 shares. The exercised RSUs had been awarded on June 16, 2025 and fully vested on June 16, 2026.
On June 15, 2026, she also received a new grant of 63,197 restricted stock units. These RSUs will vest on June 15, 2027, subject to continued service, or earlier on the date of Ribbon’s 2027 Annual Meeting of Stockholders if she does not stand for re-election or is not re-elected at that meeting.
SILVER LOUIS reported acquisition or exercise transactions in this Form 4 filing.
Ribbon Communications Inc. director Louis Silver received a grant of 63,197 Restricted Stock Units (RSUs) tied to the company’s common stock. Each RSU represents a right to receive one share when it vests. The award will vest on June 15, 2027, if he continues serving the company.
If Ribbon’s 2027 annual stockholders’ meeting occurs before June 15, 2027 and Silver either does not stand for re-election or is not re-elected, the RSUs will instead vest on the date of that meeting. Following this grant, he holds 63,197 RSUs directly.
Ribbon Communications Inc. director Scott Mair reported equity compensation activity involving restricted stock units (RSUs) and common shares. On June 16, 2026, he exercised RSUs to acquire 67,500 shares of common stock, leaving him with 208,138 common shares held directly after the transaction.
The filing also shows a new grant of 63,197 RSUs on June 15, 2026. Each RSU represents a right to receive one share of common stock. These RSUs are scheduled to vest on June 15, 2027, subject to his continued service, or earlier on the date of the company’s 2027 annual stockholder meeting under specified board service conditions.
Ribbon Communications director Shani Shaul reported routine equity compensation activity. Shaul received an award of 63,197 Restricted Stock Units (RSUs) that each represent a right to one share of common stock. These RSUs are scheduled to vest on June 15, 2027, subject to continued service, or earlier at the 2027 Annual Meeting of Stockholders if she does not stand for re-election or is not re-elected.
On June 16, 2026, Shaul also exercised 42,500 RSUs for 42,500 shares of common stock, leaving no remaining RSUs from that prior grant and resulting in direct ownership of 225,966 common shares. The filing shows no open-market purchases or sales, only grants and conversions.
Ribbon Communications Inc. director Beatriz V. Infante reported compensation-related equity activity. She exercised previously granted restricted stock units into 42,500 shares of common stock, increasing her direct common share holdings to 385,724 shares after the transactions. Separately, she received a new award of 63,197 restricted stock units (RSUs), each representing the right to receive one share of common stock. These RSUs are scheduled to vest on June 15, 2027, subject to her continued service, or earlier on the date of the company’s 2027 Annual Meeting of Stockholders if she is not standing for, or does not win, re-election at that meeting.
Ribbon Communications Inc. director H. Bruns Grayson reported compensation-related equity activity. On June 16, 2026, he exercised 42,500 RSUs, receiving the same number of common shares and bringing his direct holdings to 825,847 shares of common stock.
On June 15, 2026, he was granted 63,197 new Restricted Stock Units (RSUs), each representing one share of common stock. These RSUs vest on June 15, 2027, subject to continued board service, or earlier on the date of the company’s 2027 annual stockholder meeting if he does not continue on the board then.