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ISSUER PROFILE · CIK 0001708055

Ribbon Communications Inc.RBBN

1 13D/G filings 1 distinct filers 0 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
1
1 SC
Distinct filers
1
single filer
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
7.08
as of 2026-08-31

13D/G Filings Timeline · 1 total

FiledFormFilerStakeSharesIntent
2020-03-05 SC JPMORGAN CHASE & CO view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-08-31 4,724,516 7.08 +6.8%
2026-08-14 4,423,423 7.40 +9.7%
2026-07-31 4,034,032 4.85 -3.1%
2026-07-15 4,161,563 5.05 +14.0%
2026-06-30 3,649,863 4.24 -4.7%
2026-06-15 3,828,201 4.80 -1.8%
2026-05-29 3,896,613 2.56 +9.9%
2026-05-15 3,544,743 5.20 +3.5%
2026-04-30 3,424,570 2.98 +7.3%
2026-04-15 3,192,230 3.06 +1.3%
2026-03-31 3,151,966 5.90 +4.9%
2026-03-13 3,004,557 3.93 -10.8%

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