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ACADIAN ASSET MANAGEMENT LLC

Position in RBBN — Ribbon Communications Inc.

CIK 916542 Boston, MA

Position in RBBN

as of Mar 31, 2026 · filed May 13, 2026
Position Value
$3,049,598
+$857,443 QoQ
Shares Held
1,438,490
+89.0% QoQ
Ownership
0.817%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
13 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in RBBN Over Time

Shares Held

Position Value (USD)

Position in Software - Application

Technology · as of Mar 31, 2026

ACADIAN ASSET MANAGEMENT LLC holds $2,079,892,353 across 103 Software - Application names. RBBN ranks #51 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in RBBN

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13 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $3,049,598 1,438,490
2025-12-31 $2,192,155 761,165
2025-09-30 $131,449 34,592
2023-12-31 $434,489 149,824
2023-09-30 $933,953 348,490
2023-06-30 $1,736,758 622,494
2023-03-31 $947,011 276,904
2022-12-31 $97,661 35,004
2022-09-30 $31,714 14,286
2022-06-30 $292,134 96,097
2020-09-30 $51,490 13,305
2020-06-30 $1,028,693 261,754
2020-03-31 $1,510,651 498,565