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    Rubicon Technology Inc.

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    $RBCN
    Semiconductors
    Technology

    Rubicon Technology, Inc. provides monocrystalline sapphire for applications in optical and industrial systems. It operates in Sapphire and Pharmacy segments. The company offers optical and industrial sapphire products in various shapes and sizes, including round and rectangular windows and wafers, domes, tubes, and rods for a range of end markets comprising defense and aerospace, specialty lighting, instrumentation, sensors and detectors, semiconductor process equipment, electronic substrates, medical, and laser applications. It also provides medications and vitamins to patients being discharged from skilled nursing facilities. The company markets and sells its products through its direct sales force in North America, Europe, and Asia. Its principal customers include defense subcontractors, industrial manufacturers, fabricators, and resellers. The company was incorporated in 2001 and is headquartered in Bensenville, Illinois.

    IPO Year: 2007

    Exchange: NASDAQ

    Website: rubicontechnology.com

    Recent Analyst Ratings for Rubicon Technology Inc.

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    Rubicon Technology Inc. Financials

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    • Rubicon Technology, Inc. Sets Record Date for its $11.00 per share Cash Distribution

      BENSENVILLE, IL., Aug. 12, 2022 (GLOBE NEWSWIRE) -- Rubicon Technology, Inc. (NASDAQ:RBCN) ("Rubicon" or the "Company") announced today that, in connection with the cash tender offer (the "Offer") by Janel Corporation ("Janel") for up to 45% of Rubicon's issued and outstanding common stock, par value $.001 per share ("Common Stock"), the Company's Board of Directors has set August 23, 2022 (the "Record Date") as the record date for its cash distribution of $11.00 per share of Common Stock (the "Distribution"). The Distribution and the Record Date are conditioned upon the consummation of the Offer by August 19, 2022. If such condition has occurred it is anticipated that the Distribution wil

      8/12/22 8:00:00 AM ET
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      Semiconductors
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    Rubicon Technology Inc. SEC Filings

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    • SEC Form 15-15D filed by Rubicon Technology Inc.

      15-15D - Rubicon Technology, Inc. (0001410172) (Filer)

      3/30/23 5:18:05 PM ET
      $RBCN
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    • SEC Form 10-K filed by Rubicon Technology Inc.

      10-K - Rubicon Technology, Inc. (0001410172) (Filer)

      3/30/23 5:15:53 PM ET
      $RBCN
      Semiconductors
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    • SEC Form EFFECT filed by Rubicon Technology Inc.

      EFFECT - Rubicon Technology, Inc. (0001410172) (Filer)

      3/15/23 12:15:05 AM ET
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    • SEC Form POS AM filed by Rubicon Technology Inc.

      POS AM - Rubicon Technology, Inc. (0001410172) (Filer)

      3/10/23 5:05:42 PM ET
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    • SEC Form S-8 POS filed by Rubicon Technology Inc.

      S-8 POS - Rubicon Technology, Inc. (0001410172) (Filer)

      3/10/23 5:00:51 PM ET
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    • SEC Form S-8 POS filed by Rubicon Technology Inc.

      S-8 POS - Rubicon Technology, Inc. (0001410172) (Filer)

      3/10/23 5:01:37 PM ET
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    • SEC Form S-8 POS filed by Rubicon Technology Inc.

      S-8 POS - Rubicon Technology, Inc. (0001410172) (Filer)

      3/10/23 5:00:12 PM ET
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    • Rubicon Technology Inc. filed SEC Form 8-K: Leadership Update, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

      8-K - Rubicon Technology, Inc. (0001410172) (Filer)

      2/24/23 5:19:40 PM ET
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    • SEC Form 25 filed by Rubicon Technology Inc.

      25 - Rubicon Technology, Inc. (0001410172) (Filer)

      12/23/22 4:45:24 PM ET
      $RBCN
      Semiconductors
      Technology
    • Rubicon Technology Inc. filed SEC Form 8-K: Submission of Matters to a Vote of Security Holders

      8-K - Rubicon Technology, Inc. (0001410172) (Filer)

      12/23/22 2:00:26 PM ET
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    Rubicon Technology Inc. Press Releases

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    • Rubicon Technology Announces Voluntary Delisting from Nasdaq

      Bensenville, IL , Dec. 13, 2022 (GLOBE NEWSWIRE) -- Rubicon Technology, Inc. (NASDAQ:RBCN) announced that it has notified The Nasdaq Stock Market LLC ("Nasdaq") of the Company's decision to voluntarily delist its common stock from the Nasdaq Capital Market and its intent to file a Form 25 with the U.S. Securities and Exchange Commission (the "SEC") on or about December 23, 2022. As a result, the Company expects the delisting of its common stock to become effective on December 30, 2022. The Company anticipates that its common stock will be quoted on the Pink Sheets platform, which is operated by OTC Markets Group Inc.  (the "Pink Sheets"), and it currently intends to continue to provide in

      12/13/22 4:30:00 PM ET
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      Semiconductors
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    • Rubicon Technology, Inc. Sets Record Date for its $11.00 per share Cash Distribution

      BENSENVILLE, IL., Aug. 12, 2022 (GLOBE NEWSWIRE) -- Rubicon Technology, Inc. (NASDAQ:RBCN) ("Rubicon" or the "Company") announced today that, in connection with the cash tender offer (the "Offer") by Janel Corporation ("Janel") for up to 45% of Rubicon's issued and outstanding common stock, par value $.001 per share ("Common Stock"), the Company's Board of Directors has set August 23, 2022 (the "Record Date") as the record date for its cash distribution of $11.00 per share of Common Stock (the "Distribution"). The Distribution and the Record Date are conditioned upon the consummation of the Offer by August 19, 2022. If such condition has occurred it is anticipated that the Distribution wil

      8/12/22 8:00:00 AM ET
      $RBCN
      Semiconductors
      Technology
    • Janel Corporation to Launch a Cash Tender Offer to Acquire a 45% Interest in Rubicon Technology, Inc. at $20 Per Share

      Immediately Following the Tender Offer Rubicon will distribute cash of $11 per share to its Stockholders BENSENVILLE, IL., July 05, 2022 (GLOBE NEWSWIRE) -- Rubicon Technology, Inc. (NASDAQ:RBCN) ("Rubicon" or the "Company") announced today that it has entered into a definitive Stock Purchase and Sale Agreement (the "Sale Agreement") with Janel Corporation (OTC:JANL) ("Janel"), pursuant to which Janel will commence a cash tender offer to purchase up to 45% of the outstanding shares of Rubicon's common stock on a fully-diluted basis at a price of $20.00 per share. The offer price represents approximately 120% premium to the Company's closing stock price on the NASDAQ of $9.10 on July 1,

      7/5/22 8:00:00 AM ET
      $RBCN
      Semiconductors
      Technology
    • Paragon Technologies Issues Letter to Rubicon Technology Shareholders

      EASTON, PA / ACCESSWIRE / April 27, 2022 /To Shareholders of Rubicon Technology:As many of you may know, Paragon Technologies, Inc. (OTC:PGNT), ("Paragon"), has been a shareholder of Rubicon Technology (NASDAQ:RBCN), ("Rubicon") for more than five years. During that time, Paragon sought representation on Rubicon's board based on our view that the company's management and directors have failed to enhance shareholder value or reverse the company's persistent failure to generate positive financial results. Five years is more than enough time to expect meaningful results. At the end of 2021 Rubicon's share price stood at approximately $9.00, compared to approximately $8.00 per share at December

      4/27/22 2:35:00 PM ET
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    • RUBICON TECHNOLOGY EXTENDS SECTION 382 RIGHTS AGREEMENT TO PROTECT THE VALUE OF ITS NET OPERATING LOSSES

      Bensenville, IL, Dec. 18, 2020 (GLOBE NEWSWIRE) -- Rubicon Technology, Inc. (NASDAQ: RBCN) announced today that it has entered into an amendment to extend its Section 382 Rights Agreement (the “Rights Agreement”). The Rights Agreement was entered into in an effort to preserve stockholder value by protecting against a possible limitation on the Company’s ability to use its net operating loss carry-forwards, which for U.S. federal income tax purposes were estimated at approximately $188.1 million as of December 31, 2019. The Rights Agreement was originally entered into in December 2017 and was scheduled to expire on December 18, 2020. The amendment, which has been unanimously approved by th

      12/18/20 8:00:00 AM ET
      $RBCN
      Semiconductors
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    • Rubicon Technology Announces a $3 Million Stock Repurchase Plan

      BENSENVILLE, IL, Dec. 16, 2020 (GLOBE NEWSWIRE) -- Rubicon Technology, Inc. (“RTI”) (NASDAQ: RBCN) had previously implemented a stock repurchase plan to repurchase up to $3 million of its common stock in November 2018.  In July 2020, RTI used up all of the remaining amount of such initial $3 million authorization.  Today, RTI announced that its Board of Directors has authorized another stock repurchase plan to purchase up to an additional $3 million of its common stock from time to time through open market and private transactions.  The timing, price and volume of repurchases will be based upon market conditions, relevant securities laws and other factors. The stock repurchase plan expires

      12/16/20 8:05:00 AM ET
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    Rubicon Technology Inc. Large Ownership Changes

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    • SEC Form SC 13D/A filed by Rubicon Technology Inc. (Amendment)

      SC 13D/A - Rubicon Technology, Inc. (0001410172) (Subject)

      8/24/22 12:55:31 PM ET
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    • SEC Form SC 13D/A filed by Rubicon Technology Inc. (Amendment)

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      8/24/22 10:07:39 AM ET
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    • SEC Form SC 13D/A filed by Rubicon Technology Inc. (Amendment)

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      8/23/22 4:18:02 PM ET
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    • SEC Form SC 13D/A filed by Rubicon Technology Inc. (Amendment)

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      8/22/22 4:29:46 PM ET
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    • SEC Form SC 13D/A filed by Rubicon Technology Inc. (Amendment)

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    • SEC Form SC 13D/A filed by Rubicon Technology Inc. (Amendment)

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      7/8/22 4:10:15 PM ET
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    • SEC Form SC 13D/A filed by Rubicon Technology Inc. (Amendment)

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      7/5/22 9:35:00 PM ET
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    • SEC Form SC 13D filed by Rubicon Technology Inc.

      SC 13D - Rubicon Technology, Inc. (0001410172) (Subject)

      7/5/22 9:19:57 AM ET
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    • SEC Form SC 13G/A filed by Rubicon Technology Inc. (Amendment)

      SC 13G/A - Rubicon Technology, Inc. (0001410172) (Subject)

      2/7/22 3:42:22 PM ET
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    Rubicon Technology Inc. Insider Trading

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    • 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 units

      4 - Rubicon Technology, Inc. (0001410172) (Issuer)

      2/24/23 8:00:08 AM ET
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    • SEC Form 3: New insider Eidinger John claimed no ownership of stock in the company

      3 - Rubicon Technology, Inc. (0001410172) (Issuer)

      8/29/22 6:22:52 PM ET
      $RBCN
      Semiconductors
      Technology
    • SEC Form 3: New insider Seirer Darren Clay claimed ownership of 451,842 shares

      3 - Rubicon Technology, Inc. (0001410172) (Issuer)

      8/29/22 6:08:28 PM ET
      $RBCN
      Semiconductors
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    • SEC Form 3: New insider Janel Corp claimed ownership of 1,108,000 shares

      3 - Rubicon Technology, Inc. (0001410172) (Issuer)

      8/24/22 10:14:21 AM ET
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      Semiconductors
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    • 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 units

      4 - Rubicon Technology, Inc. (0001410172) (Issuer)

      8/23/22 4:23:03 PM ET
      $RBCN
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    • 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 units

      4 - Rubicon Technology, Inc. (0001410172) (Issuer)

      8/22/22 8:01:42 AM ET
      $RBCN
      Semiconductors
      Technology
    • 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 units

      4 - Rubicon Technology, Inc. (0001410172) (Issuer)

      8/22/22 8:01:12 AM ET
      $RBCN
      Semiconductors
      Technology
    • 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 units

      4 - Rubicon Technology, Inc. (0001410172) (Issuer)

      8/22/22 8:00:36 AM ET
      $RBCN
      Semiconductors
      Technology
    • SEC Form 4: Gramm Jefferson was granted 1,010 shares, increasing direct ownership by 23% to 5,454 units

      4 - Rubicon Technology, Inc. (0001410172) (Issuer)

      8/1/22 4:30:56 PM ET
      $RBCN
      Semiconductors
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    • SEC Form 4: Mikolajczyk Michael E was granted 1,010 shares, increasing direct ownership by 2% to 63,307 units

      4 - Rubicon Technology, Inc. (0001410172) (Issuer)

      8/1/22 4:30:28 PM ET
      $RBCN
      Semiconductors
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