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Cross-fund · 4 holders

RBBN

RIBBON COMMUNICATIONS INC

CUSIP 762544104

4
Tracked holders
$39.1M
Aggregate value
15,641,125
Shares
4
Active funds

Funds holding RBBN

FundStrategyPeriodValue% of bookΔ sharesStatus
VanguardInstitutionalQ4 2025$22.6M+141,939+1.8%
BlackRockInstitutionalQ1 2026$14.3M-941,918-12.3%
CitadelMulti-StrategyQ1 2026$1.3M+538,886+999.7%
MillenniumMulti-StrategyQ1 2026$1.0M+437,014+804.7%

Aggregated from the latest 13F-HR per tracked fund (longs only). QoQ deltas compare against each fund's prior quarterly filing.