Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 21 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
July 15, 2026 RBBN A 11,752 · · 237,718 Direct +5.20% Acquired (price as of 2026-10-06)
June 16, 2026 RBBN M 42,500 · · 0 Direct -100.00% Disposed (price as of 2026-10-06)
June 16, 2026 RBBN M 42,500 · · 225,966 Direct +23.17% Acquired (price as of 2026-10-06)
June 15, 2026 RBBN A 63,197 · · 63,197 Direct · Acquired (price as of 2026-10-06)
April 15, 2026 RBBN A 12,971 · · 183,466 Direct +7.61% Acquired (price as of 2026-10-06)
Jan. 15, 2026 RBBN A 9,548 · · 170,495 Direct +5.93% Acquired (price as of 2026-10-06)
Oct. 15, 2025 RBBN A 7,236 · · 160,947 Direct +4.71% Acquired (price as of 2026-10-06)
Oct. 15, 2025 RBBN A 185,210 · · 185,210 Direct · Acquired (price as of 2026-10-06)
June 17, 2025 RBBN M 48,365 · · 153,711 Direct +45.91% Acquired (price as of 2026-10-06)
June 17, 2025 RBBN M 48,365 · · 0 Direct -100.00% Disposed (price as of 2026-10-06)
June 16, 2025 RBBN A 42,500 · · 42,500 Direct · Acquired (price as of 2026-10-06)
June 17, 2024 RBBN A 48,365 · · 48,365 Direct · Acquired (price as of 2026-10-06)
June 15, 2024 RBBN M 51,964 · · 0 Direct -100.00% Disposed (price as of 2026-10-06)
June 15, 2024 RBBN M 51,964 · · 105,346 Direct +97.34% Acquired (price as of 2026-10-06)
June 15, 2023 RBBN A 51,964 · · 51,964 Direct · Acquired (price as of 2026-10-06)
June 15, 2023 RBBN M 38,585 · · 0 Direct -100.00% Disposed (price as of 2026-10-06)
June 15, 2023 RBBN M 38,585 · · 53,382 Direct +260.76% Acquired (price as of 2026-10-06)
June 15, 2022 RBBN A 38,585 · · 38,585 Direct · Acquired (price as of 2026-10-06)
June 15, 2022 RBBN M 14,797 · · 0 Direct -100.00% Disposed (price as of 2026-10-06)
June 15, 2022 RBBN M 14,797 · · 14,797 Direct · Acquired (price as of 2026-10-06)
June 15, 2021 RBBN A 14,797 · · 14,797 Direct · Acquired (price as of 2026-10-06)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
June 16, 2026 RBBN RSUs Common Stock (42,500) · · 42,500 Disposed
June 15, 2026 RBBN Restricted Stock Units (RSUs) Common Stock (63,197) · · 63,197 Acquired
Oct. 15, 2025 RBBN Restricted Stock Units (RSUs) Common Stock (185,210) · · 185,210 Acquired
June 17, 2025 RBBN RSUs Common Stock (48,365) · · 48,365 Disposed
June 16, 2025 RBBN Restricted Stock Units (RSUs) Common Stock (42,500) · · 42,500 Acquired
June 17, 2024 RBBN RSUs Common Stock (48,365) · · 48,365 Acquired
June 15, 2024 RBBN Restricted Stock Units (RSUs) Common Stock (51,964) · · 51,964 Disposed
June 15, 2023 RBBN RSUs Common Stock (51,964) · · 51,964 Acquired
June 15, 2023 RBBN Restricted Stock Units (RSUs) Common Stock (38,585) · · 38,585 Disposed
June 15, 2022 RBBN RSU Common Stock (38,585) · · 38,585 Acquired
June 15, 2022 RBBN Restricted Stock Units (RSU) Common Stock (14,797) · · 14,797 Disposed
June 15, 2021 RBBN Restricted Stock Units (RSU) Common Stock (14,797) · · 14,797 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).