RBCN insider transactions
Rubicon Technology Inc. (RBCN) Form 4 insider transactions - real-time wire coverage of every officer, director, and 10% owner trade.
RBCN insiders
Everyone who has filed a Form 3, 4, 5 or 144 at Rubicon Technology Inc., latest first. Follow anyone to get their next filing.
- Timothy BrogDirector-$1.25M
- John EidingerDirector, since August 2022
- Darren Clay SeirerDirector, 10% owner, since August 2022
- Janel Corp10% owner, since August 2022
- Jefferson GrammDirector, 10% owner-$2.66M
- Michael E MikolajczykDirector-$637K
- Susan WestphalDirector-$89.4K
- Kevin Timothy LusardiOfficer, since March 2021
Recent Form 3, 4, and 5 filings for RBCN
- SEC Form 4: Brog Timothy sold $79,462 worth of shares (52,624 units at $1.51), decreasing direct ownership by 91% to 4,969 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 3: New insider Eidinger John claimed no ownership of stock in the company3 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 3: New insider Seirer Darren Clay claimed ownership of 451,842 shares3 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 3: New insider Janel Corp claimed ownership of 1,108,000 shares3 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Gramm Jefferson sold $2,659,840 worth of shares (132,992 units at $20.00), decreasing direct ownership by 50% to 3,021 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Brog Timothy sold $1,166,300 worth of shares (58,315 units at $20.00), decreasing direct ownership by 50% to 57,593 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Mikolajczyk Michael E sold $637,020 worth of shares (31,851 units at $20.00), decreasing direct ownership by 50% to 31,456 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Westphal Susan sold $89,440 worth of shares (4,472 units at $20.00), decreasing direct ownership by 50% to 4,416 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Gramm Jefferson was granted 1,010 shares, increasing direct ownership by 23% to 5,454 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Mikolajczyk Michael E was granted 1,010 shares, increasing direct ownership by 2% to 63,307 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Westphal Susan was granted 1,010 shares, increasing direct ownership by 13% to 8,888 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Brog Timothy converted options into 12,500 shares and covered exercise/tax liability with 6,346 shares, increasing direct ownership by 6% to 115,908 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Brog Timothy converted options into 12,500 shares and covered exercise/tax liability with 6,346 shares, increasing direct ownership by 6% to 109,754 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4 filed by Brog Timothy4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: MIKOLAJCZYK MICHAEL E was granted 1,250 units of Common Stock, increasing direct ownership by 2% to 62,297 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Westphal Susan was granted 1,250 units of Common Stock, increasing direct ownership by 19% to 7,878 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Gramm Jefferson was granted 1,250 units of Common Stock, increasing direct ownership by 39% to 4,444 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 4: Timothy Brog was granted 31,550 units of Common Stock and disposed of $161,610 worth of Common Stock (14,950 units at $10.81), increasing direct ownership by 19% to 103,600 units4 - Rubicon Technology, Inc. (0001410172) (Issuer)
- SEC Form 3: Timothy Kevin Lusardi claimed no ownership of Common Stock3 - Rubicon Technology, Inc. (0001410172) (Issuer)