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SIMPLEX TRADING, LLC

Position in RBBN — Ribbon Communications Inc.

CIK 1488542 CHICAGO, IL

Position in RBBN

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$172,867
+$165,420 QoQ
Shares Held
73,875
+2756.7% QoQ
Ownership
0.041%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#65
of 161 holders
Holding Since
Mar 2020
21 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in RBBN Over Time

Shares Held

Position Value (USD)

Position in Software - Application

Technology · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $69,106,527 across 79 Software - Application names. RBBN ranks #38 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in RBBN

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21 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $172,867 73,875
2025-12-31 $7,447 2,586
2025-09-30 $75,779 19,942
2025-06-30 $79,718 19,880
2025-03-31 $4 1,193
2024-09-30 $8,248 2,538
2024-06-30 $32,258 9,805
2024-03-31 $49,443 15,451
2023-12-31 $43,952 15,156
2023-09-30 $28,834 10,759
2023-06-30 $27,542 9,872
2023-03-31 $186,588 54,558
2022-12-31 $25 9
2022-06-30 $3,444 1,133
2022-03-31 $1,297 420
2021-12-31 $27,140 4,486
2021-03-31 $434,637 52,940
2020-12-31 $105,005 16,007
2020-09-30 $278 72
2020-06-30 $14,163 3,604
2020-03-31 $5,608 1,851