RIBBON COMMUNICATIONS INC

Ticker: RBBN CUSIP: 762544104 Class: Common Stock

CENTRAL SECURITIES CORP's Holding History (CIK: 0000018748)

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

Q3 2020
Shares 388,746 Value ($000) $1,504 Avg Close $4.22 Range $3.61 - $5.64
Q2 2020
Shares 1,007,488 Value ($000) $3,959 Avg Close $3.63 Range $2.67 - $4.68
Q1 2020
Shares 1,077,488 Value ($000) $3,265 Avg Close $3.01 Range $1.95 - $3.68
Q4 2019
Shares 1,077,488 Value ($000) $3,340 Avg Close $3.98 Range $2.44 - $5.92
Q3 2019
Shares 1,247,488 Value ($000) $7,285 Avg Close $5.25 Range $4.79 - $5.93
Q2 2019
Shares 1,387,100 Value ($000) $6,783 Avg Close $4.88 Range $4.23 - $5.55
Q1 2019
Shares 1,387,100 Value ($000) $7,144 Avg Close $5.36 Range $4.64 - $6.56
Q4 2018
Shares 1,387,100 Value ($000) $6,686 Avg Close $5.80 Range $4.62 - $7.20
Q3 2018
Shares 1,387,100 Value ($000) $9,474 Avg Close $7.12 Range $6.36 - $7.89
Q2 2018
Shares 1,387,100 Value ($000) $9,876 Avg Close $5.86 Range $4.97 - $7.28
Q1 2018
Shares 1,387,100 Value ($000) $7,074 Avg Close $6.47 Range $5.01 - $7.93
Q4 2017
Shares 1,215,500 Value ($000) $9,396 Avg Close $7.68 Range $6.89 - $9.05