RUBICON TECHNOLOGY INC

Ticker: RBCN CUSIP: 78112T206 Class: Equities

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q2 2022
Shares 72,664 Value ($000) $668 Avg Close $9.14 Range $8.58 - $9.68
Q1 2022
Shares 74,300 Value ($000) $690 Avg Close $8.96 Range $8.61 - $9.39
Q4 2021
Shares 80,837 Value ($000) $725 Avg Close $9.76 Range $8.65 - $10.75
Q3 2021
Shares 96,750 Value ($000) $976 Avg Close $9.51 Range $8.60 - $11.00
Q2 2021
Shares 96,750 Value ($000) $919 Avg Close $10.19 Range $9.42 - $11.92
Q1 2021
Shares 96,750 Value ($000) $998 Avg Close $10.29 Range $9.18 - $11.84
Q4 2020
Shares 87,150 Value ($000) $789 Avg Close $8.78 Range $8.39 - $10.00
Q3 2020
Shares 86,850 Value ($000) $738 Avg Close $8.29 Range $7.75 - $8.85
Q2 2020
Shares 80,930 Value ($000) $658 Avg Close $7.80 Range $7.25 - $9.00
Q1 2020
Shares 28,819 Value ($000) $222 Avg Close $8.57 Range $7.15 - $9.16
Q4 2019
Shares 26,119 Value ($000) $217 Avg Close $8.48 Range $7.93 - $10.09
Q3 2019
Shares 26,119 Value ($000) $248 Avg Close $8.95 Range $8.16 - $9.87
Q2 2019
Shares 26,119 Value ($000) $217 Avg Close $8.02 Range $7.50 - $8.62
Q1 2019
Shares 26,119 Value ($000) $211 Avg Close $8.16 Range $7.62 - $8.48
Q4 2018
Shares 25,819 Value ($000) $204 Avg Close $8.11 Range $7.24 - $9.12
Q3 2018
Shares 26,774 Value ($000) $240 Avg Close $8.46 Range $7.79 - $9.46
Q2 2018
Shares 26,774 Value ($000) $211 Avg Close $7.38 Range $6.76 - $8.06
Q1 2018
Shares 26,874 Value ($000) $187 Avg Close $7.49 Range $6.95 - $8.39
Q4 2017
Shares 23,390 Value ($000) $187 Avg Close $8.17 Range $7.51 - $9.05
Q3 2017
Shares 26,527 Value ($000) $219 Avg Close $8.22 Range $6.71 - $9.41
Q2 2017
Shares 30,271 Value ($000) $280 Avg Close $8.54 Range $6.40 - $10.45