Ribbon Communication shares owned by California State Teachers Retirement System
Quarter-by-quarter ownership of Ribbon Communication (RBBN) shares owned by California State Teachers Retirement System
from 13F filings
Historical chart of California State Teachers Retirement System investment in Ribbon Communication
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Quarterly reported holdings in Ribbon Communication by California State Teachers Retirement System
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $336k | 89k | 3.80 |
| 2025-06-30 | $359k | 90k | 4.01 |
| 2025-03-31 | $351k | 90k | 3.92 |
| 2024-12-31 | $372k | 90k | 4.16 |
| 2024-09-30 | $293k | 90k | 3.25 |
| 2024-06-30 | $303k | 92k | 3.29 |
| 2024-03-31 | $300k | 94k | 3.20 |
| 2023-09-30 | $274k | 102k | 2.68 |
| 2023-06-30 | $310k | 111k | 2.79 |
| 2023-03-31 | $319k | 93k | 3.42 |
| 2022-12-31 | $263k | 94k | 2.79 |
| 2022-09-30 | $207k | 93k | 2.22 |
| 2022-06-30 | $291k | 96k | 3.04 |
| 2022-03-31 | $345k | 112k | 3.09 |
| 2021-12-31 | $721k | 119k | 6.05 |
| 2021-09-30 | $694k | 116k | 5.98 |
| 2021-06-30 | $737k | 97k | 7.61 |
| 2021-03-31 | $844k | 103k | 8.21 |
| 2020-12-31 | $688k | 105k | 6.56 |
| 2020-09-30 | $394k | 102k | 3.87 |
| 2020-06-30 | $391k | 99k | 3.93 |
| 2020-03-31 | $293k | 97k | 3.03 |
| 2019-12-31 | $296k | 96k | 3.10 |
| 2019-09-30 | $449k | 92k | 4.89 |
| 2019-06-30 | $449k | 92k | 4.89 |
| 2019-03-31 | $425k | 83k | 5.15 |
| 2018-12-31 | $414k | 86k | 4.82 |
| 2018-09-30 | $555k | 81k | 6.83 |
| 2018-06-30 | $574k | 81k | 7.12 |
| 2018-03-31 | $366k | 72k | 5.10 |
| 2017-12-31 | $582k | 75k | 7.73 |
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