Latest Schedule 13D activist filings

Shopify Inc. has amended its Schedule 13D filing to reflect changes in its beneficial ownership of Klaviyo, Inc. Series A Common Stock.

5AM Ventures entities and associated individuals have filed an amendment to their Schedule 13D, reporting changes in beneficial ownership and recent stock transactions for CAMP4 Therapeutics Corporation.

Saba Capital Management, L.P. has amended its Schedule 13D filing to report an increased beneficial ownership of 7.73% in the Japan Smaller Capitalization Fund, Inc., detailing recent open market transactions.

Sermonix Pharmaceuticals and CEO David Portman have increased their beneficial ownership in LeonaBio, Inc. to 36.9% through the exercise of prefunded warrants.

Dandan Liu has acquired an additional 2,969,692 common shares of TDH Holdings, Inc., increasing her total beneficial ownership to 49.11% of the outstanding shares.

An amendment to a Schedule 13D filing reveals adjustments in beneficial ownership of STRATTEC SECURITY CORP by various Gabelli-affiliated entities, with GAMCO Asset Management Inc. holding the largest stake.

Richard William Svetkoff, a significant shareholder and founder of Starfighters Space, Inc., has disclosed the sale of a substantial portion of his holdings.

Etoiles Capital Group Co., Ltd files Schedule 13D detailing beneficial ownership changes and a joint filing agreement.

Ping An Insurance Group and its affiliates have amended terms for Lufax convertible notes, extending maturity dates and incurring costs, impacting their beneficial ownership calculations.

MEDIROM Healthcare Technologies Inc. files an amendment to Schedule 13D, updating beneficial ownership details for Kouji Eguchi and COZY LLC, reflecting stock option grants and share transfers.

PPF IM Ltd. and related entities have filed an amendment to their Schedule 13D, confirming their beneficial ownership of approximately 5.6% of Autolus Therapeutics plc's shares following an internal reorganization.

Expion Energy, Inc. has entered into a securities purchase agreement to issue a $4.5 million convertible debenture and warrants, aiming to fund oil and gas asset acquisition and general corporate purposes.

Major investment entities affiliated with Andreessen Horowitz have disclosed the sale of a substantial number of Nautilus Biotechnology shares, reducing their beneficial ownership.

Longview Asset Management, LLC has filed an amendment to its Schedule 13D, indicating potential adjustments to its investment in General Dynamics Corporation for portfolio diversification.

Reporting persons adjust beneficial ownership of First US Bancshares stock following the passing of Charles C. Anderson and a significant share disposition.

Imperial Petroleum Inc. has updated its Schedule 13D filing to reflect changes in its beneficial ownership of C3is Inc. common stock following a recent reverse stock split and adjustments to convertible preferred stock conversion prices.

Imperial Petroleum Inc. has updated its Schedule 13D filing to reflect changes in its beneficial ownership of C3is Inc. common stock following a recent reverse stock split and adjustments to convertible preferred stock conversion prices.

Rezolve AI plc files an amendment to its Schedule 13D, detailing non-market driven adjustments to beneficial ownership among key stakeholders and the expiration of call options.

James A. Bianco, M.D., CEO of TuHURA Biosciences, Inc., has filed an amendment to reduce his beneficial ownership below 5% due to share dilution from a fee arrangement, marking an exit filing.

Situational Awareness LP and affiliated entities have disclosed a beneficial ownership of 21.1% of SharonAI Holdings Inc.'s Class A Ordinary Common Stock, acquired for investment purposes.

Quantum-Si Incorporated announces a Rule 10b5-1 trading plan for the sale of up to 8,947,746 shares of Class A common stock by affiliated entities.

BRC Group Holdings, Inc., along with affiliated entities, has acquired a 10.03% stake in Biomerica Inc. and entered into a strategic advisory engagement.

BRC Group Holdings, Inc., along with affiliated entities, has acquired a 10.03% stake in Biomerica Inc. and entered into a strategic advisory engagement.

Lianyi Holding Limited and Yu Chen jointly file a Schedule 13D, disclosing beneficial ownership of 34.12% of iOThree Limited's ordinary shares acquired in January 2026.

Sean Goodrich and Goodrich ILMJS LLC have increased their beneficial ownership of Boost Run Inc. Class A Common Stock to 10.28% through the exercise of private placement warrants.

Howard Amster and associated entities have filed an amendment to their Schedule 13D, reporting significant sales of CBL & Associates Properties Inc. common stock over the past 60 days.

An amendment to a Schedule 13D filing reveals updated beneficial ownership details for the Gebbia Group concerning Siebert Financial Corp. common stock.

J. David Rosenberg has increased his beneficial ownership of Gouverneur Bancorp, Inc. common stock to 5.1%, acquiring shares for investment purposes.

Saba Capital Management, L.P. has filed an amendment to its Schedule 13D, detailing its beneficial ownership and recent transactions in The Gabelli Healthcare & WellnessRx Trust.

L.I.A. Pure Capital and Invest-Pro criticize Evogene's track record and urge shareholders to vote for their board nominees.