RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 88,452 Value ($000) $255 Avg Close $3.23 Range $2.72 - $4.09
Q3 2025
Shares 88,525 Value ($000) $336 Avg Close $3.93 Range $3.57 - $4.29
Q2 2025
Shares 89,506 Value ($000) $359 Avg Close $3.60 Range $3.01 - $4.29
Q1 2025
Shares 89,506 Value ($000) $351 Avg Close $4.21 Range $3.66 - $5.38
Q4 2024
Shares 89,506 Value ($000) $372 Avg Close $3.78 Range $3.03 - $4.39
Q3 2024
Shares 90,044 Value ($000) $293 Avg Close $3.24 Range $2.75 - $3.95
Q2 2024
Shares 92,160 Value ($000) $303 Avg Close $3.04 Range $2.47 - $3.58
Q1 2024
Shares 93,747 Value ($000) $300 Avg Close $3.04 Range $2.75 - $3.65
Q4 2023
Shares 98,213 Value ($000) $285 Avg Close $2.25 Range $1.78 - $3.00
Q3 2023
Shares 102,337 Value ($000) $274 Avg Close $2.92 Range $2.59 - $3.59
Q2 2023
Shares 111,092 Value ($000) $310 Avg Close $2.77 Range $2.30 - $3.49
Q1 2023
Shares 93,346 Value ($000) $319 Avg Close $3.65 Range $2.70 - $4.84
Q4 2022
Shares 94,281 Value ($000) $263 Avg Close $2.59 Range $2.19 - $3.14
Q3 2022
Shares 93,271 Value ($000) $207 Avg Close $3.17 Range $2.22 - $3.99
Q2 2022
Shares 95,873 Value ($000) $291 Avg Close $3.02 Range $2.57 - $3.65
Q1 2022
Shares 111,788 Value ($000) $345 Avg Close $4.10 Range $2.74 - $6.42
Q4 2021
Shares 119,225 Value ($000) $721 Avg Close $5.93 Range $5.11 - $6.46
Q3 2021
Shares 116,090 Value ($000) $694 Avg Close $6.75 Range $5.80 - $7.78
Q2 2021
Shares 96,795 Value ($000) $737 Avg Close $7.65 Range $6.29 - $8.72
Q1 2021
Shares 102,782 Value ($000) $844 Avg Close $8.28 Range $6.22 - $11.25
Q4 2020
Shares 104,920 Value ($000) $688 Avg Close $5.28 Range $3.62 - $7.49
Q3 2020
Shares 101,882 Value ($000) $394 Avg Close $4.22 Range $3.61 - $5.64
Q2 2020
Shares 99,399 Value ($000) $391 Avg Close $3.63 Range $2.67 - $4.68
Q1 2020
Shares 96,649 Value ($000) $293 Avg Close $3.01 Range $1.95 - $3.68
Q4 2019
Shares 95,587 Value ($000) $296 Avg Close $3.98 Range $2.44 - $5.92
Q3 2019
Shares 91,883 Value ($000) $537 Avg Close $5.25 Range $4.79 - $5.93
Q2 2019
Shares 91,883 Value ($000) $449 Avg Close $4.88 Range $4.23 - $5.55
Q1 2019
Shares 82,595 Value ($000) $425 Avg Close $5.36 Range $4.64 - $6.56
Q4 2018
Shares 85,872 Value ($000) $414 Avg Close $5.80 Range $4.62 - $7.20
Q3 2018
Shares 81,203 Value ($000) $555 Avg Close $7.12 Range $6.36 - $7.89
Q2 2018
Shares 80,670 Value ($000) $574 Avg Close $5.86 Range $4.97 - $7.28
Q1 2018
Shares 71,799 Value ($000) $366 Avg Close $6.47 Range $5.01 - $7.93
Q4 2017
Shares 75,323 Value ($000) $582 Avg Close $7.68 Range $6.89 - $9.05