NASDAQ:RBBN | Historical Stock Price | Ribbon Communications Inc.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2000-05-25 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.09$3.47$11.03$35.04$111.33$353.722000-05-252026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$2.88$2.88327,400
2025-12-30$2.95$2.95486,800
2025-12-29$2.94$2.94800,800
2025-12-26$2.95$2.95603,700
2025-12-24$2.94$2.94210,900
2025-12-23$2.93$2.93509,300
2025-12-22$2.94$2.94560,100
2025-12-19$2.89$2.89761,500
2025-12-18$2.91$2.91656,100
2025-12-17$2.86$2.86908,900
2025-12-16$2.89$2.89569,300
2025-12-15$2.90$2.90583,800
2025-12-12$2.98$2.98699,600
2025-12-11$3.04$3.04906,700
2025-12-10$3.02$3.02896,900
2025-12-09$2.91$2.911,088,900
2025-12-08$2.87$2.87647,500
2025-12-05$2.89$2.89729,500
2025-12-04$2.77$2.77949,600
2025-12-03$2.88$2.88407,200
2025-12-02$2.82$2.82409,900
2025-12-01$2.80$2.80474,100
2025-11-28$2.86$2.86258,600
2025-11-26$2.84$2.84460,300
2025-11-25$2.82$2.82639,500
2025-11-24$2.76$2.761,374,600
2025-11-21$2.75$2.75683,800
2025-11-20$2.76$2.76653,600
2025-11-19$2.85$2.851,206,200
2025-11-18$2.79$2.79828,300
2025-11-17$3.00$3.00664,600
2025-11-14$3.08$3.08796,800
2025-11-13$3.04$3.04992,800
2025-11-12$3.24$3.24768,700
2025-11-11$3.18$3.18534,100
2025-11-10$3.27$3.27597,600
2025-11-07$3.16$3.16651,000
2025-11-06$3.16$3.16486,200
2025-11-05$3.22$3.22594,000
2025-11-04$3.17$3.17659,100
2025-11-03$3.36$3.36678,700
2025-10-31$3.36$3.36665,400
2025-10-30$3.36$3.36846,900
2025-10-29$3.45$3.451,456,600
2025-10-28$3.46$3.46760,600
2025-10-27$3.45$3.451,290,300
2025-10-24$3.55$3.551,061,500
2025-10-23$3.45$3.452,610,200
2025-10-22$4.00$4.00784,700
2025-10-21$4.04$4.04589,600
2025-10-20$3.93$3.93508,200
2025-10-17$3.81$3.81634,700
2025-10-16$3.81$3.81727,700
2025-10-15$3.92$3.92847,500
2025-10-14$3.81$3.81529,000
2025-10-13$3.70$3.70472,800
2025-10-10$3.60$3.60523,200
2025-10-09$3.74$3.74504,200
2025-10-08$3.76$3.76312,600
2025-10-07$3.76$3.76641,000
2025-10-06$3.84$3.84692,700
2025-10-03$3.86$3.86983,100
2025-10-02$3.77$3.77594,300
2025-10-01$3.78$3.78486,400
2025-09-30$3.80$3.80378,700
2025-09-29$3.76$3.76440,900
2025-09-26$3.75$3.75354,000
2025-09-25$3.82$3.82532,700
2025-09-24$3.87$3.87456,200
2025-09-23$3.92$3.92548,700
2025-09-22$3.87$3.87309,000
2025-09-19$3.87$3.87864,700
2025-09-18$3.97$3.97458,300
2025-09-17$3.85$3.85584,000
2025-09-16$3.82$3.82691,600
2025-09-15$3.90$3.90832,300
2025-09-12$3.82$3.82570,800
2025-09-11$3.94$3.94599,700
2025-09-10$3.95$3.951,433,700
2025-09-09$4.05$4.05371,200
2025-09-08$4.06$4.06448,800
2025-09-05$3.99$3.99751,100
2025-09-04$4.16$4.16701,300
2025-09-03$4.01$4.01536,800
2025-09-02$4.02$4.02621,500
2025-08-29$4.08$4.08474,400
2025-08-28$4.11$4.11814,500
2025-08-27$3.99$3.99359,100
2025-08-26$3.95$3.95479,700
2025-08-25$3.93$3.93351,700
2025-08-22$3.97$3.97507,700
2025-08-21$3.74$3.74253,000
2025-08-20$3.71$3.71606,100
2025-08-19$3.74$3.74403,300
2025-08-18$3.90$3.90256,800
2025-08-15$3.87$3.87492,700
2025-08-14$3.95$3.95474,500
2025-08-13$4.08$4.08531,800
2025-08-12$4.06$4.06685,200
2025-08-11$4.02$4.02948,100
2025-08-08$3.79$3.79236,500
2025-08-07$3.78$3.78361,000
2025-08-06$3.79$3.79456,600
2025-08-05$3.58$3.58399,700
2025-08-04$3.63$3.63617,800
2025-08-01$3.60$3.60656,500
2025-07-31$3.76$3.76490,500
2025-07-30$3.80$3.80640,600
2025-07-29$3.87$3.87696,400
2025-07-28$3.83$3.83772,000
2025-07-25$3.83$3.83528,000
2025-07-24$3.89$3.891,553,100
2025-07-23$4.25$4.25815,000
2025-07-22$4.03$4.03661,000
2025-07-21$4.07$4.07430,600
2025-07-18$4.06$4.06418,200
2025-07-17$3.99$3.99422,000
2025-07-16$3.94$3.94448,600
2025-07-15$3.88$3.88412,500
2025-07-14$4.03$4.03307,400
2025-07-11$4.01$4.01376,700
2025-07-10$4.07$4.07290,200
2025-07-09$4.07$4.07254,600
2025-07-08$4.05$4.05305,600
2025-07-07$4.08$4.08415,100
2025-07-03$4.19$4.19236,600
2025-07-02$4.14$4.14477,500
2025-07-01$4.18$4.18828,300
2025-06-30$4.01$4.01528,700
2025-06-27$3.95$3.95885,300
2025-06-26$4.03$4.03507,500
2025-06-25$4.05$4.05392,100
2025-06-24$4.04$4.04505,100
2025-06-23$3.94$3.94429,800
2025-06-20$3.88$3.88797,600
2025-06-18$3.86$3.86788,800
2025-06-17$3.89$3.89441,300
2025-06-16$3.86$3.86387,500
2025-06-13$3.74$3.74468,800
2025-06-12$3.94$3.94552,800
2025-06-11$3.91$3.91662,300
2025-06-10$3.98$3.98845,800
2025-06-09$3.97$3.971,301,600
2025-06-06$3.69$3.69678,400
2025-06-05$3.58$3.58527,000
2025-06-04$3.60$3.60628,000
2025-06-03$3.82$3.822,032,800
2025-06-02$3.50$3.50290,500
2025-05-30$3.38$3.38724,800
2025-05-29$3.50$3.50449,500
2025-05-28$3.49$3.49271,500
2025-05-27$3.57$3.57504,000
2025-05-23$3.51$3.51272,100
2025-05-22$3.63$3.63329,800
2025-05-21$3.61$3.61291,300
2025-05-20$3.63$3.63234,200
2025-05-19$3.64$3.64333,200
2025-05-16$3.63$3.63398,300
2025-05-15$3.62$3.62405,000
2025-05-14$3.66$3.66630,800
2025-05-13$3.54$3.54404,100
2025-05-12$3.42$3.42638,100
2025-05-09$3.15$3.15387,900
2025-05-08$3.13$3.13449,200
2025-05-07$3.05$3.05495,700
2025-05-06$3.11$3.11615,400
2025-05-05$3.16$3.16597,900
2025-05-02$3.24$3.24707,200
2025-05-01$3.23$3.23901,900
2025-04-30$3.21$3.211,489,800
2025-04-29$3.75$3.75566,200
2025-04-28$3.68$3.68420,600
2025-04-25$3.61$3.61292,200
2025-04-24$3.58$3.58437,200
2025-04-23$3.52$3.52448,300
2025-04-22$3.48$3.48303,600
2025-04-21$3.43$3.43287,300
2025-04-17$3.58$3.58378,800
2025-04-16$3.53$3.53292,900
2025-04-15$3.62$3.62370,800
2025-04-14$3.51$3.51430,300
2025-04-11$3.46$3.46334,200
2025-04-10$3.46$3.46520,000
2025-04-09$3.67$3.67738,200
2025-04-08$3.30$3.30710,000
2025-04-07$3.32$3.32774,200
2025-04-04$3.38$3.38588,300
2025-04-03$3.52$3.52566,100
2025-04-02$3.90$3.90346,200
2025-04-01$3.84$3.84307,500
2025-03-31$3.92$3.92559,300
2025-03-28$4.06$4.06570,000
2025-03-27$4.01$4.01342,600
2025-03-26$4.07$4.07303,900
2025-03-25$4.23$4.23485,500
2025-03-24$4.22$4.22378,700
2025-03-21$4.01$4.01671,400
2025-03-20$4.01$4.01379,500
2025-03-19$4.02$4.02393,900
2025-03-18$3.90$3.90379,700
2025-03-17$3.95$3.95601,800
2025-03-14$3.95$3.95450,900
2025-03-13$3.86$3.86452,100
2025-03-12$3.94$3.94571,700
2025-03-11$3.83$3.83673,600
2025-03-10$3.78$3.78692,200
2025-03-07$4.17$4.17548,300
2025-03-06$4.27$4.27396,700
2025-03-05$4.50$4.50473,100
2025-03-04$4.32$4.32989,100
2025-03-03$4.45$4.45712,000
2025-02-28$4.72$4.72794,000
2025-02-27$4.73$4.73518,800
2025-02-26$4.86$4.86682,800
2025-02-25$4.64$4.64578,000
2025-02-24$4.58$4.58699,300
2025-02-21$4.73$4.73566,800
2025-02-20$4.95$4.95759,300
2025-02-19$5.06$5.06811,200
2025-02-18$5.14$5.141,088,100
2025-02-14$5.13$5.131,384,100
2025-02-13$5.00$5.003,706,900
2025-02-12$4.33$4.331,157,000
2025-02-11$4.34$4.34647,600
2025-02-10$4.27$4.27554,400
2025-02-07$4.09$4.09484,300
2025-02-06$4.19$4.19588,500
2025-02-05$4.20$4.20610,100
2025-02-04$4.09$4.09275,900
2025-02-03$3.93$3.93315,700
2025-01-31$4.10$4.10597,000
2025-01-30$4.06$4.06476,700
2025-01-29$3.93$3.93532,100
2025-01-28$3.86$3.86230,300
2025-01-27$3.82$3.82747,000
2025-01-24$4.11$4.11329,900
2025-01-23$4.20$4.20453,300
2025-01-22$4.14$4.14264,100
2025-01-21$4.14$4.14586,400
2025-01-17$4.03$4.03462,100
2025-01-16$4.02$4.02245,600
2025-01-15$4.05$4.05502,900
2025-01-14$3.99$3.99377,600
2025-01-13$3.90$3.90210,500
2025-01-10$3.95$3.95289,000
2025-01-08$4.01$4.01265,000
2025-01-07$4.00$4.00226,900
2025-01-06$4.07$4.07345,700
2025-01-03$4.04$4.04276,400
2025-01-02$3.96$3.96344,800