Latest Schedule 13D activist filings

A group of investment entities led by Mario Gabelli has reduced its beneficial ownership in Biglari Holdings Inc. Class A Common Stock to 6.49% through a series of sales.

Mark Zames, Chairman of Seneca Bancorp, Inc., increased his beneficial ownership to 9.2% of the common stock for investment purposes.

Avraham Brenmiller, founder of Brenmiller Energy Ltd., has reduced his beneficial ownership in the company to below 5% following warrant exercises by an investor.

Edward Smolyansky, a significant shareholder, has notified Lifeway Foods of his intent to nominate a new director and propose a new independent board committee to evaluate management and strategy.

Diveroli Investment Group LLC and Kingbird Ventures LLC have increased their beneficial ownership in StableX Technologies, Inc. to 5.9% through recent common stock purchases.

Michael Anthony Belfiore has increased his beneficial ownership in AIRWA INC. to 22.1% of common stock, acquired for investment purposes.

The Kernaghan group has increased its beneficial ownership in Obsidian Energy Ltd. to 5.22% through a series of open market and private transactions, re-establishing a greater than 5% stake.

European Lithium Limited reduced its stake in Critical Metals Corp. by selling 3,030,303 ordinary shares for $50 million.

Yunqi Capital and affiliates reiterate their intention to vote against STAAR Surgical's proposed merger, citing concerns over recent disclosures and urging a special stockholder meeting.

R01 Fund LP and its affiliates increased their beneficial ownership in NovaBay Pharmaceuticals, Inc. to 45.1% through the conversion of Series D preferred stock and the acquisition of new Series E preferred stock.

Framework Ventures IV L.P. and its affiliates have increased their beneficial ownership in NovaBay Pharmaceuticals, Inc. to 45.1% through convertible preferred stock and a pre-funded warrant.

Atlas Venture entities have reduced their collective beneficial ownership in Sionna Therapeutics, Inc. to 7.0% through recent share sales.

Saba Capital Management and affiliates have increased their beneficial ownership in The Gabelli Healthcare & WellnessRx Trust to 13.3%.

Skycrest Holdings, LLC has increased its beneficial ownership in Zeo Scientifix, Inc. to 7.04% through recent open market purchases.

Star Equity Fund, LP and Gyrodyne, LLC have entered into a settlement agreement, leading to the withdrawal of Star Equity's director nominations and changes to Gyrodyne's board structure and governance.

Nvni Group Limited's CEO, Pierre Schurmann, increased his beneficial ownership to 15.84% of ordinary shares through recent acquisitions.

A group of major shareholders, including Manfredi Lefebvre d'Ovidio, reduced their beneficial ownership in Arqit Quantum Inc. to 43.2% following recent sales of shares and warrants.

A major shareholder of H World Group Limited, East Leader International Limited, has revoked a long-standing power of attorney granted to Mr. Qi Ji, effective October 20, 2025.

H World Group Limited's Schedule 13D/A filing details updated beneficial ownership for Qi Ji and Winner Crown Holdings, alongside the revocation of a power of attorney granted to Qi Ji by East Leader International Limited.

Apeiron Investment Group and related entities increased their beneficial ownership in ATAI Life Sciences N.V. to 24.0% following a share conversion and a new lock-up agreement.

Blue Owl Capital Holdings LP increased its beneficial ownership in Katapult Holdings, Inc. to 42.74% due to an increase in conversion shares driven by the issuer's stock price.

RA Capital Management and its affiliates reported a reduction in their beneficial ownership of VOR BioPharma Inc. common stock to 20.9% through recent open market sales.

Bakkt Holdings, Inc. announced a corporate reorganization to eliminate its Up-C structure, becoming a subsidiary of a new public holding company, accompanied by amendments to its Tax Receivable Agreement and related agreements with Intercontinental Exchange Holdings, Inc. and CEO Akshay Naheta.

Bakkt Holdings, Inc. announced a corporate reorganization to eliminate its Up-C structure, becoming a subsidiary of a new public holding company, accompanied by amendments to its Tax Receivable Agreement and related agreements with Intercontinental Exchange Holdings, Inc. and CEO Akshay Naheta.

Konstantinos Konstantakopoulos and affiliated entities increased their beneficial ownership in Costamare Bulkers Holdings Ltd. to 30.9% through recent share acquisitions and service agreements.

Green Thumb Industries affiliates, including RSLGH, LLC, have increased their beneficial ownership in RYTHM, Inc. to 49.99% through various equity instruments and warrant issuances.

Sit Investment Associates and Sit Fixed Income Advisors II have disclosed a 5.6% beneficial ownership stake in Eaton Vance Limited Duration Income Fund, acquired for investment purposes.

Sit Investment Associates and Sit Fixed Income Advisors II have disclosed a 6.4% beneficial ownership in Eaton Vance Short Duration Diversified Income Fund, signaling potential engagement with management.

A group of investors, holding 15.8% of CollPlant Biotechnologies, is advocating for immediate changes to the company's Board of Directors, including a new Chairman.

Activist investor Impactive Capital, holding a 6.4% stake in WEX Inc., announced its intention to nominate a slate of directors for the 2026 Annual Meeting, citing persistent underperformance and governance concerns.