The 5% radar — new activist & large stakes

Cross 5% of a company's voting stock and you have to tell the SEC. A 13D is the activist version — filed when the holder might push for change. A 13G is a passive large holder. An /A is an amendment: a stake moved. This is the live feed of who just crossed the line, and where.

Form	Company	Filed by	% of class	Source
13D/A	AMG BBH Asset-Backed Credit Fund, LLC Class S Units of Beneficial Interest	BROWN BROTHERS HARRIMAN & CO +1	54.8%	SEC ↗
13D	JIN MEDICAL INTERNATIONAL LTD. Class A Ordinary Shares, par value US$0.	Wang Erqi +2	6.8%	SEC ↗
13D/A	Decent Holding Inc. Class A Ordinary Shares, par value US$0.	Dingxin Sun +1	41.6%	SEC ↗
13D/A	CollPlant Biotechnologies Ltd Ordinary Shares, par value NIS 1.5 per s	Loewenbaum Lilian S. +6	17.5%	SEC ↗
13D/A	MEDIFAST INC Common Stock, $0.001 par value	Steamboat Capital Partners, LLC +1	7.1%	SEC ↗
13D/A	Palomino Laboratories Inc. Common Stock, par value $0.0001 per shar	Richard Ogawa	6.9%	SEC ↗
13D/A	Koninklijke Philips NV Ordinary shares, par value Euro 0.20 per	Giovanni Agnelli B.V. +1	19.0%	SEC ↗
13D/A	Stablecoin Development Corp Common Stock, $0.01 par value per share	Sky Frontier Foundation	9.9%	SEC ↗
13D/A	Brera Holdings PLC Class B Ordinary Shares, $0.05 nominal v	Ron Sade	3.2%	SEC ↗
13D/A	Liberty Broadband Corp Series A Common Stock, par value $0.01 p	John C. Malone	0.0%	SEC ↗
13D/A	Liberty Broadband Corp Series B Common Stock, par value $0.01 p	John C. Malone	0.0%	SEC ↗
13D/A	JETBLUE AIRWAYS CORP Common Stock, par value $0.01 per share	Icahn Partners Master Fund LP +10	3.3%	SEC ↗
13D	Super League Enterprise, Inc. Common Stock, $0.001 par value per share	Evo Fund +3	9.9%	SEC ↗
13D/A	Brera Holdings PLC Class B Ordinary Shares, $0.05 nominal v	Alyazi Saeed Ahmad Alkhattal Almheiri	2.9%	SEC ↗
13D/A	Brera Holdings PLC Class B Ordinary Shares, $0.05 nominal v	Keren Kalima Maimon	2.9%	SEC ↗
13D/A	Liberty Broadband Corporation Series A Cumulative Redeemable Preferred	Ronald A. Duncan	0.0%	SEC ↗
13D/A	CHARTER COMMUNICATIONS, INC. /MO/ Class A Common Stock, $0.001 Par Value	Advance/Newhouse Partnership +4	14.3%	SEC ↗
13D	DOGNESS (INTERNATIONAL) CORPORATION Class A Common Shares, no par value per	MING KAI TRADING INTERNATIONAL LIMITED +1	35.7%	SEC ↗
13D/A	Cimpress plc Ordinary Shares, nominal value of (euro)	SPRUCE HOUSE INVESTMENT MANAGEMENT LLC +4	4.3%	SEC ↗
13D/A	BlackSky Technology, Inc. Class A Common Stock, par value $0.0001	Mithril LP +1	0.0%	SEC ↗
13D/A	Republic Services, Inc. Common Stock, par value $0.01 per share	Cascade Investment, L.L.C. +1	36.7%	SEC ↗
13D	Hepion Pharmaceuticals, Inc. Common Stock, par value $0.0001 per shar	Gary Stetz	5.7%	SEC ↗
13D/A	Hepion Pharmaceuticals, Inc. Common Stock, par value $0.0001 per shar	Gravitas Capital LP +2	26.2%	SEC ↗
13D	Hepion Pharmaceuticals, Inc. Common Stock, par value $0.0001 per shar	Sireesh Appajosyula	5.7%	SEC ↗
13D/A	Axil Brands, Inc. Common Stock, $0.0001 par value per shar	JEFF TOGHRAIE +2	46.9%	SEC ↗
13D	Group 1 Automotive, Inc. Common stock, par value $0.01 per share	Conifer Management, L.L.C.	9.7%	SEC ↗
13D/A	TREDEGAR CORPORATION COMMON STOCK	John D. Gottwald +3	16.1%	SEC ↗
13D/A	BIG SKY INDUSTRIAL INC. Common Stock, $0.01 par value per share	Batchelor Joshua Lane +6	4.9%	SEC ↗
13D/A	MARRIOTT VACATIONS WORLDWIDE Corp Common stock, par value $0.01 per share	Impactive Capital LP +3	9.8%	SEC ↗
13D/A	Elastic N.V. COMMON STOCK	PICTET ASSET MANAGEMENT SA	5.2%	SEC ↗

In your own code: free API key, then /v1/activist/latest (add ?activist_only=true for just the 13Ds) or /v1/activist/AAPL for one company. See also insider cluster buys and 13F fund holdings. 13D is filed within days of crossing 5%; 13G on a slower schedule. Not investment advice.