• Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
Quantisnow Logo
  • Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • Settings
  • RSS Feeds
Dashboard
    Quantisnow Logo

    © 2025 quantisnow.com
    Democratizing insights since 2022

    Services
    Live news feedsRSS FeedsAlerts
    Company
    AboutQuantisnow PlusContactJobs
    Legal
    Terms of usePrivacy policyCookie policy

    Chief Executive Officer Nguyen Diem converted options into 55,902 shares and covered exercise/tax liability with 23,644 shares, increasing direct ownership by 91% to 67,653 units (SEC Form 4)

    1/29/25 5:07:01 PM ET
    $SIGA
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $SIGA alert in real time by email
    SEC FORM 4 SEC Form 4
    FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549

    STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
    or Section 30(h) of the Investment Company Act of 1940
    OMB APPROVAL
    OMB Number: 3235-0287
    Estimated average burden
    hours per response: 0.5
      
    Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
      
    Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
    1. Name and Address of Reporting Person*
    Nguyen Diem

    (Last) (First) (Middle)
    C/O SIGA TECHNOLOGIES, INC.
    31 EAST 62ND STREET

    (Street)
    NEW YORK NY 10065

    (City) (State) (Zip)
    2. Issuer Name and Ticker or Trading Symbol
    SIGA TECHNOLOGIES INC [ SIGA ]
    5. Relationship of Reporting Person(s) to Issuer
    (Check all applicable)
    X Director 10% Owner
    X Officer (give title below) Other (specify below)
    Chief Executive Officer
    3. Date of Earliest Transaction (Month/Day/Year)
    01/27/2025
    4. If Amendment, Date of Original Filed (Month/Day/Year)
    6. Individual or Joint/Group Filing (Check Applicable Line)
    X Form filed by One Reporting Person
    Form filed by More than One Reporting Person
    Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
    1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V Amount (A) or (D) Price
    Common Stock, par value $.0001 per share 01/27/2025 M 55,902(1) A $0 91,297 D
    Common Stock, par value $.0001 per share 01/27/2025 F 23,644(2) D $6.34 67,653 D
    Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
    (e.g., puts, calls, warrants, options, convertible securities)
    1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
    Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
    Restricted Stock Units (3) 01/27/2025 M 55,902 (3) (3) Common Stock, par value $.0001 per share 55,902 $0 111,805 D
    Explanation of Responses:
    1. Represents the acquisition of Common Stock from the vesting of one-third of the restricted stock units ("RSUs") granted on January 27, 2024.
    2. Represents the withholding by the Issuer of shares of Common Stock (based on $6.34 per share, the closing stock price on January 27, 2025) to satisfy tax withholding obligations associated with the vesting of RSUs and the consequent issuance of Common Stock.
    3. RSUs represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs vest over three years, one-third on each of the first three anniversaries of the date of grant.
    /s/ Diem Nguyen 01/29/2025
    ** Signature of Reporting Person Date
    Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
    * If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
    ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
    Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
    Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
    Get the next $SIGA alert in real time by email

    Chat with this insight

    Save time and jump to the most important pieces.

    Recent Analyst Ratings for
    $SIGA

    DatePrice TargetRatingAnalyst
    More analyst ratings

    $SIGA
    Press Releases

    Fastest customizable press release news feed in the world

    See more
    • SIGA Reports Financial Results for Three Months Ended March 31, 2025

      Received $26 Million IV TPOXX Procurement Order from the U.S. Government in March$94 million in TPOXX Orders (to be Delivered to U.S. Strategic National Stockpile) outstanding as of March 31, 2025Corporate Update Conference Call Today at 4:30 PM ET NEW YORK, May 08, 2025 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (SIGA) (NASDAQ:SIGA), a commercial-stage pharmaceutical company, today reported financial results for the three months ended March 31, 2025. "SIGA has carried its momentum from 2024 into 2025, achieving steady progress on its key initiatives," stated Diem Nguyen, Chief Executive Officer. "In the first quarter, an international sale of approximately $6 million marks what we expe

      5/8/25 4:05:00 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SIGA to Host Business Update Call on May 8, 2025 Following Release of First-Quarter 2025 Results

      NEW YORK, May 01, 2025 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (SIGA) (NASDAQ:SIGA), a commercial-stage pharmaceutical company, today announced that management will host a webcast and conference call to provide a business update at 4:30 P.M. ET on Thursday, May 8, 2025. Participating in the call will be Diem Nguyen, Chief Executive Officer, and Daniel Luckshire, Chief Financial Officer. A live webcast of the call will also be available on the Company's website at http://www.siga.com in the Investor Relations section of the site, or by clicking here. Please log in approximately 5-10 minutes prior to the scheduled start time. Participants may access the call by dialing 1-800-717-1738 f

      5/1/25 7:30:00 AM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SIGA Declares Special Cash Dividend of $0.60 Per Share

      NEW YORK, April 08, 2025 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (SIGA) (NASDAQ:SIGA), a commercial-stage pharmaceutical company, today announced that its board of directors declared a special cash dividend of $0.60 per share on the company's common stock. This represents the fourth straight year of a special cash dividend. The amount of the dividend declared is consistent with the level of the dividend declared in March 2024. The dividend is payable on May 15, 2025, to shareholders of record at the close of business on April 29, 2025. "Today's announcement of a special cash dividend reflects the strength of our balance sheet and continued confidence in the future of our business," sa

      4/8/25 7:30:00 AM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care

    $SIGA
    Leadership Updates

    Live Leadership Updates

    See more
    • SIGA Appoints Retired General John M. Keane to its Board of Directors

      NEW YORK, March 18, 2025 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (SIGA) (NASDAQ:SIGA), a commercial-stage pharmaceutical company, announced today the appointment of Retired United States Army General John "Jack" Keane to its Board of Directors, effective immediately. General Keane, a retired four-star general, completed 37 years of public service in December 2003, culminating with his appointment as acting Chief of Staff and Vice Chief of Staff of the U.S. Army from 1999 to 2003. He is a foreign policy and national security expert who serves as an advisor to presidents, cabinet officials, members of congress, international leaders, CEOs, and business leaders. He also provide

      3/18/25 7:30:00 AM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SIGA Names Larry Miller General Counsel

      NEW YORK, March 25, 2024 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (NASDAQ:SIGA), a commercial-stage pharmaceutical company focused on health security and infectious diseases, announced the appointment of Larry Miller as general counsel, effective today. "With over twenty years of experience in the biopharmaceutical industry, Larry brings a proven track record of growing commercial businesses, successful mergers and acquisitions, and strong corporate governance, which are critical to driving SIGA's continued success and growth strategies forward," said Diem Nguyen, Chief Executive Officer.  "Larry will be instrumental in helping us expand our reach on a global scale and maximize the ben

      3/25/24 7:30:00 AM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SIGA Announces Appointment of Diem Nguyen, Ph.D., MBA, as New Chief Executive Officer

      NEW YORK, Jan. 22, 2024 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (SIGA) (NASDAQ:SIGA), a commercial-stage pharmaceutical company focused on the health security market, today announced that Diem Nguyen, Ph.D., will join the Company as chief executive officer (CEO), effective January 27, 2024, and will also be appointed to the Company's Board of Directors. SIGA's current CEO, Dr. Phil Gomez, will retire from SIGA on January 26, 2024. "The appointment of Diem Nguyen as our new CEO marks a significant milestone for SIGA as we continue to expand our partnerships with governments across the world in global health security initiatives and medical countermeasure preparedness," said Josep

      1/22/24 7:30:00 AM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care

    $SIGA
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    See more
    • SEC Form SC 13G filed by SIGA Technologies Inc.

      SC 13G - SIGA TECHNOLOGIES INC (0001010086) (Subject)

      2/1/24 3:54:12 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SEC Form SC 13G/A filed by SIGA Technologies Inc. (Amendment)

      SC 13G/A - SIGA TECHNOLOGIES INC (0001010086) (Subject)

      2/14/23 4:42:47 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SEC Form SC 13G filed by SIGA Technologies Inc.

      SC 13G - SIGA TECHNOLOGIES INC (0001010086) (Subject)

      6/24/22 4:05:38 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care

    $SIGA
    Insider Trading

    Insider transactions reveal critical sentiment about the company from key stakeholders. See them live in this feed.

    See more
    • General Counsel Miller Larry R. converted options into 6,920 shares and covered exercise/tax liability with 3,532 shares, increasing direct ownership by 10% to 38,444 units (SEC Form 4)

      4 - SIGA TECHNOLOGIES INC (0001010086) (Issuer)

      4/21/25 5:00:24 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • General Counsel Miller Larry R. converted options into 6,920 shares and covered exercise/tax liability with 2,764 shares, increasing direct ownership by 13% to 35,056 units (SEC Form 4)

      4 - SIGA TECHNOLOGIES INC (0001010086) (Issuer)

      3/26/25 5:01:41 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SEC Form 4 filed by Director Keane John M

      4 - SIGA TECHNOLOGIES INC (0001010086) (Issuer)

      3/19/25 5:04:11 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care

    $SIGA
    Financials

    Live finance-specific insights

    See more
    • SIGA Reports Financial Results for Three Months Ended March 31, 2025

      Received $26 Million IV TPOXX Procurement Order from the U.S. Government in March$94 million in TPOXX Orders (to be Delivered to U.S. Strategic National Stockpile) outstanding as of March 31, 2025Corporate Update Conference Call Today at 4:30 PM ET NEW YORK, May 08, 2025 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (SIGA) (NASDAQ:SIGA), a commercial-stage pharmaceutical company, today reported financial results for the three months ended March 31, 2025. "SIGA has carried its momentum from 2024 into 2025, achieving steady progress on its key initiatives," stated Diem Nguyen, Chief Executive Officer. "In the first quarter, an international sale of approximately $6 million marks what we expe

      5/8/25 4:05:00 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SIGA to Host Business Update Call on May 8, 2025 Following Release of First-Quarter 2025 Results

      NEW YORK, May 01, 2025 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (SIGA) (NASDAQ:SIGA), a commercial-stage pharmaceutical company, today announced that management will host a webcast and conference call to provide a business update at 4:30 P.M. ET on Thursday, May 8, 2025. Participating in the call will be Diem Nguyen, Chief Executive Officer, and Daniel Luckshire, Chief Financial Officer. A live webcast of the call will also be available on the Company's website at http://www.siga.com in the Investor Relations section of the site, or by clicking here. Please log in approximately 5-10 minutes prior to the scheduled start time. Participants may access the call by dialing 1-800-717-1738 f

      5/1/25 7:30:00 AM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SIGA Declares Special Cash Dividend of $0.60 Per Share

      NEW YORK, April 08, 2025 (GLOBE NEWSWIRE) -- SIGA Technologies, Inc. (SIGA) (NASDAQ:SIGA), a commercial-stage pharmaceutical company, today announced that its board of directors declared a special cash dividend of $0.60 per share on the company's common stock. This represents the fourth straight year of a special cash dividend. The amount of the dividend declared is consistent with the level of the dividend declared in March 2024. The dividend is payable on May 15, 2025, to shareholders of record at the close of business on April 29, 2025. "Today's announcement of a special cash dividend reflects the strength of our balance sheet and continued confidence in the future of our business," sa

      4/8/25 7:30:00 AM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care

    $SIGA
    SEC Filings

    See more
    • SEC Form 10-Q filed by SIGA Technologies Inc.

      10-Q - SIGA TECHNOLOGIES INC (0001010086) (Filer)

      5/8/25 4:52:58 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SIGA Technologies Inc. filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits

      8-K - SIGA TECHNOLOGIES INC (0001010086) (Filer)

      5/8/25 4:05:21 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care
    • SEC Form DEFA14A filed by SIGA Technologies Inc.

      DEFA14A - SIGA TECHNOLOGIES INC (0001010086) (Filer)

      4/28/25 4:08:03 PM ET
      $SIGA
      Biotechnology: Pharmaceutical Preparations
      Health Care