RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

Campbell & CO Investment Adviser LLC's Holding History (CIK: 0001353570)

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

Q4 2021
Shares 35,900 Value ($000) $217 Avg Close $5.93 Range $5.11 - $6.46
Q3 2021
Shares 33,000 Value ($000) $197 Avg Close $6.75 Range $5.80 - $7.78
Q1 2021
Shares 10,400 Value ($000) $85 Avg Close $8.28 Range $6.22 - $11.25
Q3 2019
Shares 12,160 Value ($000) $71 Avg Close $5.25 Range $4.79 - $5.93
Q1 2018
Shares 14,100 Value ($000) $72 Avg Close $6.47 Range $5.01 - $7.93
Q4 2017
Shares 11,800 Value ($000) $91 Avg Close $7.68 Range $6.89 - $9.05