Latest Schedule 13D activist filings

Caisse de depot et placement du Quebec and its subsidiary CDP Investissements Inc. reaffirmed their beneficial ownership of 25.3% of Zevia PBC's Class A Common Stock.

MGT Capital Investments, Inc. issued 500 million shares to director Michael G. Onghai, settling $56,000 in accrued fees and increasing his beneficial ownership to 11.5%.

Key insiders, including Non-Executive Chairman Harry N. Vafias, updated their beneficial ownership in C3IS Inc. to reflect dilution from recent warrant exercises and an increased share count.

Fortress Biotech, Inc. has reported a decrease in its beneficial ownership of Mustang Bio, Inc. common stock, falling below the 5% threshold as of September 29, 2025.

Fortress Biotech, Inc. reported a decrease in its beneficial ownership of Mustang Bio, Inc. common stock to 4.0%, falling below the 5% threshold due to recent equity grants.

Major shareholder Khrom Capital calls for Acadia Healthcare to initiate a formal strategic review, including a potential sale, citing persistent underperformance and governance failures.

Individual investor Mark Andrew Uram has significantly increased his beneficial ownership in Crypto Co to 16.4% of outstanding common stock, acquired using personal funds.

Jasper Lake Ventures One LLC has notified Bioceres Crop Solutions Corp. of alleged events of default under a Note Purchase Agreement, leading to Noah Kolatch's resignation from the board.

American Ventures LLC, Series XVI AGH and affiliated entities have reduced their beneficial ownership in Aureus Greenway Holdings Inc. to 2.74% through recent share sales.

Fairfax Financial Holdings and its affiliates have reduced their beneficial ownership in BlackBerry Ltd. to 6.1% through recent open market sales.

Fairfax Financial Holdings and its affiliates have reduced their beneficial ownership in BlackBerry Ltd. to 6.1% through recent open market sales.

Liberty Broadband Corporation will exchange its Series B Preferred Stock in comScore, Inc. for a mix of new Series C Preferred Stock and Common Stock, alongside a revised governance agreement.

Liberty Broadband Corporation will exchange its Series B Preferred Stock in comScore, Inc. for a mix of new Series C Preferred Stock and Common Stock, alongside a revised governance agreement.

Frederik W. Mohn and Perestroika entities have increased their beneficial ownership in Transocean Ltd. to 10.1% through a series of share purchases and an exchange of bonds.

Danone S.A. and Danone North America PBC have entered into an agreement with Lifeway Foods, Inc. to facilitate the potential sale of their 22.7% stake and implement corporate governance changes.

Charter Communications updates its beneficial ownership in Comscore, detailing a significant stock exchange and revised corporate governance agreements.

Charter Communications has amended its Schedule 13D, detailing a significant stock exchange agreement with Comscore, including a shift from Series B to Series C preferred stock and common shares, alongside substantial changes to Comscore's board governance.

Milton C. Ault, III and affiliated entities have updated their beneficial ownership in Alzamend Neuro, Inc., disclosing significant share sales and conversions.

Ault & Company and Milton C. Ault, III have significantly increased their beneficial ownership in Hyperscale Data, Inc., now controlling over 53% of Class A Common Stock on a fully diluted basis.

RBCH Ltd. has acquired a significant 9.99% beneficial ownership stake in Brera Holdings PLC, including shares and warrants, for approximately $50 million in USD Coin, with Viktor Fischer joining the board.

OrbiMed Advisors and its affiliates reported a decrease in their beneficial ownership of MBX Biosciences, Inc. common stock to 9.0% due to an increase in the issuer's outstanding shares.

SJC Lending, LLC and Steven J. Caspi, along with JLA Realty Associates, LLC, have disclosed a 6.2% beneficial ownership stake in TurnOnGreen, Inc., signaling potential future engagement.

Norwest Venture Partners and its affiliates reported a decrease in their beneficial ownership of MBX Biosciences common stock to 4.8% following the company's recent public offering.

Frazier Life Sciences and affiliated entities have increased their beneficial ownership in MBX Biosciences, Inc., with a recent purchase of 666,666 shares at $18.00 per share.

Mangoceuticals, Inc. CEO Jacob D. Cohen increased his beneficial ownership to 14.6% through new stock and option grants, while the company secured a convertible loan and warrants from his controlled trust.

Forbion Capital Partners and related entities have filed an amendment to their beneficial ownership in NewAmsterdam Pharma Company N.V., reporting an aggregate stake of 8.3%.

The Loewenbaum family and associated entities have disclosed a collective beneficial ownership of 13.4% in CollPlant Biotechnologies Ltd for investment purposes.

RA Capital Management and its affiliates increased their beneficial ownership in PepGen Inc. to 29.2% by purchasing 9.375 million shares in a recent public offering.

Pine Investor and Cerberus Capital Management are exchanging their Series B Preferred Stock in Comscore for a new Series C Convertible Preferred Stock and Common Stock, subject to stockholder approval.

Tencent Holdings Limited and its affiliates have amended their Schedule 13D filing, disclosing a distribution of 39.97 million KE Holdings Class A Ordinary Shares by Tencent Plus Partners to its limited partners.