Jefferson Gramm - Director, Other*, 10%+ Owner at Rubicon Technology, Inc.

Insider Transactions and Holdings

Entity Type
Individual
Role
Director, Other*, 10%+ Owner
Stock Symbol
RBCN on OTC
Industry
Semiconductors & Related Devices
All Insider Reports
All Insider Reports

There are no Buy or Sell transactions made by Jefferson Gramm since 9/12/2023

Holdings reported by Jefferson Gramm for Rubicon Technology, Inc.

Class Num Shares Value Price $ Transaction Date Ownership Underlying Class Underlying Amount
Common Stock, $0.001 Par Value Per Share 128K $2.57M $20.00 Aug 19, 2022 Indirect
Common Stock 258K $390K $1.51 Jul 29, 2022 Indirect
Common Stock, $0.001 Par Value Per Share 3.02K $60.4K $20.00 Aug 19, 2022 Direct
Common Stock 5.45K $8.24K $1.51 Jul 29, 2022 Direct

Transactions reported by Jefferson Gramm for Rubicon Technology, Inc.

Sym Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.