RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025
Shares 310,366 Value ($000) $894 Avg Close $3.23 Range $2.72 - $4.09
Q3 2025
Shares 278,489 Value ($000) $1,058 Avg Close $3.93 Range $3.57 - $4.29
Q2 2025
Shares 275,903 Value ($000) $1,106 Avg Close $3.60 Range $3.01 - $4.29
Q1 2025
Shares 199,284 Value ($000) $781 Avg Close $4.21 Range $3.66 - $5.38
Q3 2023
Shares 11,387 Value ($000) $31 Avg Close $2.92 Range $2.59 - $3.59
Q3 2022
Shares 72,038 Value ($000) $160 Avg Close $3.17 Range $2.22 - $3.99
Q2 2022
Shares 62,723 Value ($000) $191 Avg Close $3.02 Range $2.57 - $3.65
Q4 2021
Shares 24,700 Value ($000) $149 Avg Close $5.93 Range $5.11 - $6.46
Q3 2021
Shares 33,400 Value ($000) $200 Avg Close $6.75 Range $5.80 - $7.78
Q2 2021
Shares 37,800 Value ($000) $288 Avg Close $7.65 Range $6.29 - $8.72
Q1 2021
Shares 37,800 Value ($000) $310 Avg Close $8.28 Range $6.22 - $11.25
Q2 2020
Shares 22,600 Value ($000) $89 Avg Close $3.63 Range $2.67 - $4.68