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Zebra Capital Management LLC
> RBBN
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 12/31/2022 | Ribbon Communications Inc. | RBBN | 0 | -11,215 | 0 | -25,000 | |
| 09/30/2022 | Ribbon Communications Inc. | RBBN | 11,215 | -83,474 | 25,000 | -263,000 | $2.23 |
| 06/30/2022 | Ribbon Communications Inc. | RBBN | 94,689 | -2,462 | 288,000 | -12,000 | $3.04 |
| 03/31/2022 | Ribbon Communications Inc. | RBBN | 97,151 | 30,750 | 300,000 | -101,000 | $3.09 |
| 12/31/2021 | Ribbon Communications Inc. | RBBN | 66,401 | -10,139 | 401,000 | -181,000 | $6.04 |
| 06/30/2021 | Ribbon Communications Inc. | RBBN | 76,540 | 1,648 | 582,000 | -33,000 | $7.60 |
| 03/31/2021 | Ribbon Communications Inc. | RBBN | 74,892 | 74,892 | 615,000 | 615,000 | $8.21 |
| 06/30/2019 | Ribbon Communications Inc. | RBBN | 0 | -45,689 | 0 | -235,000 | |
| 03/31/2019 | Ribbon Communications Inc. | RBBN | 45,689 | 4,242 | 235,000 | 35,000 | $5.14 |
| 12/31/2018 | Ribbon Communications Inc. | RBBN | 41,447 | 41,447 | 200,000 | 200,000 | $4.83 |
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