August 13, 2026
APIMCP
Insider feed: 10b5-1 filter, joint-filing names
GET /api/news/insider/?is_10b5_1=falsereturns the discretionary trades and drops the sales that ran on a Rule 10b5-1 plan set up months earlier. Passtruefor the plan events alone, or omit the parameter for the feed as before. The same filter is onalphai_insider_newsin MCP, and it composes withsymbol=,min_relevance=andsort=ingesteddelta polling.- It filters on the same field each item already reports, at the same level. An event is the whole transaction group of a filing, so a filing that mixes a plan tranche with a discretionary one counts as a plan event on both the filter and the
insider.is_10b5_1field. The two values split the feed with nothing left over: every event the unfiltered feed returns comes back under exactly one of them. - Joint Form 4 filings now name every reporting owner. When a holding vehicle files together with the person behind it, the headline carries both (“BERKSHIRE HATHAWAY INC (BUFFETT WARREN E) sold $36.5M of DVA”), the summary lists each co-filer with their role, and the
authorsarray holds all owners, primary first. About one in five of the largest filings is a joint one, so the names most worth watching were exactly the ones the feed used to drop. Applies to filings ingested from today onward. - Full parameter reference is in the OpenAPI 1.25.0 spec.