RIBBON COMMUNICATIONS INC (RBBN): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in RBBN · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
13
13F filers
Aggregate Value
$18.3M
Across holders
Last Price
$1.72
2026-10-08
Sector
Information Technology
GICS
Quarterly fund activity11 increased2 reduced1 exited
Full exits: Schonfeld Strategic Advisors LLC
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 1.79M | $4.2M | 22.9% | 0.0% | Added | $-2.8M | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 1.41M | $3.3M | 18.0% | 0.0% | Added | $-14.3M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 1.24M | $2.9M | 15.9% | 0.0% | Added | +$1.7M | Q2 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508 | Hedge Fund | 1.22M | $2.8M | 15.5% | 0.0% | Reduced | $-4K | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 814K | $1.9M | 10.4% | 0.0% | Added | $-994K | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 698K | $1.6M | 8.9% | 0.0% | Added | +$485K | Q2 2026 |
| Squarepoint Ops LLC CIK 0001642575 | Hedge Fund | 191K | $448K | 2.4% | 0.0% | Added | — | Q2 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 173K | $404K | 2.2% | 0.0% | Added | — | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 138K | $323K | 1.8% | 0.0% | Added | — | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 102K | $239K | 1.3% | 0.0% | Added | — | Q2 2026 |
Added
Hedge Fund
$4.2M· 22.9% of total· 0.0% port· 1.79M sh· $-2.8M QoQ· Q2 2026
Added
Hedge Fund
$3.3M· 18.0% of total· 0.0% port· 1.41M sh· $-14.3M QoQ· Q2 2026
Added
Hedge Fund
$2.9M· 15.9% of total· 0.0% port· 1.24M sh· +$1.7M QoQ· Q2 2026
Reduced
Hedge Fund
$2.8M· 15.5% of total· 0.0% port· 1.22M sh· $-4K QoQ· Q2 2026
Added
Hedge Fund
$1.9M· 10.4% of total· 0.0% port· 814K sh· $-994K QoQ· Q2 2026
Added
Hedge Fund
$1.6M· 8.9% of total· 0.0% port· 698K sh· +$485K QoQ· Q2 2026
Added
Hedge Fund
$448K· 2.4% of total· 0.0% port· 191K sh· — QoQ· Q2 2026
Added
Hedge Fund
$404K· 2.2% of total· 0.0% port· 173K sh· — QoQ· Q2 2026
Added
Hedge Fund
$323K· 1.8% of total· 0.0% port· 138K sh· — QoQ· Q2 2026
Added
Hedge Fund
$239K· 1.3% of total· 0.0% port· 102K sh· — QoQ· Q2 2026
Added
Hedge Fund
$61K· 0.3% of total· 0.0% port· 26K sh· — QoQ· Q2 2026
Added
Hedge Fund
$38K· 0.2% of total· 0.0% port· 16K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$4K· 0.0% of total· 0.0% port· 2K sh· $-5K QoQ· Q2 2026
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