Latest Schedule 13D activist filings

OID
Valleypark Road, LLC has acquired a significant beneficial ownership stake, totaling 85.9% of Class A ordinary shares, in Piermont Valley Acquisition Corp through a purchase agreement with Vikasati Partners, LLC.
NASDAQ
John C. Malone, Chairman of Liberty Broadband Corporation, has updated his beneficial ownership in the company, reflecting a significant exchange of Series B Common Stock for Series C Common Stock.
NASDAQ
John C. Malone, Chairman of Liberty Broadband Corporation, filed an Amendment No. 10 to his Schedule 13D, updating his beneficial ownership and voting power in the company following a significant Series B to Series C common stock exchange.
NASDAQ
John C. Malone has reported beneficial ownership of 93.9% of GCI Liberty's Series B Common Stock following the spin-off from Liberty Broadband, while agreeing to limit his aggregate voting power to 49.99%.
NASDAQ
John C. Malone, Chairman of GCI Liberty, Inc., has disclosed a 6.8% beneficial ownership in the company's Series A Common Stock following its spin-off from Liberty Broadband, alongside a voting agreement limiting his aggregate voting power to 49.99%.
Digital Knight Finance S.a r.l., controlled by newly appointed director Clive Ng, has acquired a 15% beneficial ownership stake in OpenLocker Holdings, Inc. through recent stock purchases.
NASDAQ
Altos Venture AG significantly increased its beneficial ownership in Onconetix, Inc. to 35.8% of outstanding common stock after receiving 241,514 additional shares under a 'make-whole' provision.
Hyunsu Jung, Chief Investment Officer and Director of Hyperion DeFi, Inc., has disclosed a 9.3% beneficial ownership stake in the company, acquired as an employment inducement, with potential for an additional 1,000,000 shares tied to significant market capitalization milestones.
NASDAQ
Vladimir and Angelica Galkin have significantly increased their beneficial ownership in Newegg Commerce, Inc., now holding 2,555,555 common shares, representing 13.1% of the company's outstanding stock.
NYSE
Karpus Management, Inc. has filed a Schedule 13D disclosing beneficial ownership of 5,513,520.11 common shares, representing 16.50% of Angel Oak Financial Strategies Income Term Trust.
NASDAQ
Gilead Sciences, Inc.'s option to acquire additional shares in Arcus Biosciences, Inc., potentially increasing its stake to 35%, expired on July 13, 2025, leaving its beneficial ownership at 29.7%.
NYSE
Gilead Sciences, Inc.'s option to acquire additional shares in Arcus Biosciences, Inc., potentially increasing its stake to 35%, expired on July 13, 2025, leaving its beneficial ownership at 29.7%.
NASDAQ
Abel Avellan's beneficial ownership percentage in AST SpaceMobile, Inc. decreased to 23.0% due to an increase in the total outstanding Class A Common Stock from recent offerings, not from any sale of his shares.
NASDAQ
Edgar R. Smith III and affiliated entities have substantially increased their beneficial ownership in First Guaranty Bancshares, Inc. to 31.88% through a private placement and debt-for-equity exchange.
NASDAQ
Oportun Financial Corp has entered into a cooperation agreement with activist investor Findell Capital, leading to the appointment of Warren Wilcox to its Board of Directors and the withdrawal of Findell's prior nominations.
NYSE
MOZAYYX UGP, LLC has disclosed a 9.99% beneficial ownership stake in Bitmine Immersion Technologies, Inc., comprising direct share purchases and strategic advisor warrants aimed at expanding the Issuer's digital asset operations.
NASDAQ
Activist investor Kent Lake Partners LP has reduced its beneficial ownership in Quanterix Corp to 4.5% through recent share sales, while simultaneously re-nominating three individuals for election to the Board of Directors at the rescheduled 2025 annual meeting.
Jakota Capital AG and its ultimate beneficial owner, Ricardo da Silva Oliveira, have updated their beneficial ownership in OpenLocker Holdings, Inc. to 22.65% and confirmed plans to reconstitute the company's Board of Directors and effect management resignations.
NYSE
Zimmer Biomet Holdings, Inc. and its subsidiary, Honey Badger Merger Sub, Inc., have entered into a definitive agreement to acquire Monogram Technologies Inc. for a combination of cash and contingent value rights, valuing common stock at up to $16.41 per share.
NASDAQ
Zimmer Biomet Holdings, Inc. and its subsidiary, Honey Badger Merger Sub, Inc., have entered into a definitive agreement to acquire Monogram Technologies Inc. for a combination of cash and contingent value rights, valuing common stock at up to $16.41 per share.
OID
Vikasati Partners LLC, a major shareholder in Piermont Valley Acquisition Corp, has transferred a substantial portion of its Class A and Class B ordinary shares to Valleypark Road, LLC, a new sponsor, alongside the cancellation of private placement warrants.
NASDAQ
ABVC Biopharma's Chairman and Chief Business Officer, Eugene Jiang, has significantly increased his voting control over the company's common stock, now holding 18.50% of outstanding shares through direct ownership and various voting agreements.
NASDAQ
Mantle Ridge LP and its affiliates have exercised their Dollar Tree options, maintaining their 6.5% beneficial ownership and 11.2% economic exposure, funded by a new $918 million loan agreement that explicitly excludes margin call triggers.
NASDAQ
Fung Ching Wong and Apex Prospect Limited's beneficial ownership in LakeShore Biopharma Co., Ltd. decreased to 23.9% due to the company's recent private placement, not from any share sales.
NASDAQ
Ng Chen Lok, Chief Executive Officer and Chairman of Sagtec Global Limited, has disclosed a beneficial ownership of 68.03% of the company's Ordinary Shares, acquired through capital contributions prior to the recent initial public offering.
Saba Capital Management, L.P. and its affiliates have filed an Amendment No. 11 to their Schedule 13D, disclosing a 15.15% beneficial ownership in Blackrock California Municipal Income Trust and detailing recent share sales.
NYSE
Saba Capital Management, L.P. and its affiliates have filed an Amendment No. 5 to their Schedule 13D, disclosing a 3.19% beneficial ownership in Tortoise Energy Infrastructure Corporation and recent open market sales of common shares.
NASDAQ
Nierenberg Investment Management Company and its affiliated funds have increased their beneficial ownership in Riverview Bancorp Inc. to 9.99%, investing approximately $9.66 million and expressing encouragement from recent insider purchases.
OTC.Pink
Yip Tsz Yan has acquired a controlling 87.9% beneficial ownership in A SPAC II Acquisition Corp. through a share purchase of its Sponsor, and is set to become the company's CEO, CFO, and Chairman of the Board.
NYSE
Saba Capital Management, L.P. has reduced its beneficial ownership in Nuveen New Jersey Quality Municipal Income Fund, selling over 565,000 shares and decreasing its stake to 4.7%.