SBI Securities Co., Ltd.
- SEC CIK
- 0001851815
- Latest filing
- Jul 22, 2026
RBBN holding history
Ribbon Communications Inc. in every 13F filed by SBI Securities Co., Ltd., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
RBBN overviewAll 13F holders of RBBNFull Q2 2026 holdings
- Shares (Q2 2026)
- 1
- Value
- $2
- % of portfolio
- <0.1%
- Quarters held
- 5
- Since Q2 2025
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 1 | $2 | <0.1% | −25−96.2% | Reduced | Holders |
| Q1 2026 | 26 | $55 | <0.1% | +17+188.9% | Added | Holders |
| Q4 2025 | 9 | $26 | <0.1% | +6+200.0% | Added | Holders |
| Q3 2025 | 3 | $11 | <0.1% | −497−99.4% | Reduced | Holders |
| Q2 2025 | 500 | $2.00K | <0.1% | +500 | New | Holders |