Recent SC 13D activist stakes

The latest Schedule 13D and 13D/A activist-stake filings on SEC EDGAR, resolved from the cover-page XML to holder, target ticker, percent of class and share count. This is a free live sample; it refreshes continuously from data.sec.gov.

Filed	Form	Target	Holder	% of class	Shares	Source
2026-06-30	13D/A	Nautilus Biotechnology, Inc. (NAUT)	AH Bio Fund II, L.P. +5	7.1%	9,063,054	filing
2026-06-30	13D/A	Joby Aviation, Inc. (JOBY)	TOYOTA MOTOR CORP/	13.1%	128,454,401	filing
2026-06-30	13D/A	ProQR Therapeutics N.V. (PRQR)	Van Herk Investments B.V. +8	10.9%	15,384,250	filing
2026-06-30	13D/A	Lafayette Square USA, Inc.	Caisse de depot et placement du Quebec	19.8%	6,789,418	filing
2026-06-30	13D/A	EchoStar CORP (SATS)	Charles W. Ergen +7	51.0%	148,681,314	filing

Each row is one beneficial-ownership filing where an investor crossed 5% of a public company and disclosed intent to influence it (a Schedule 13D), or amended an existing position (a 13D/A). The percent and share count are parsed from the filing's structured cover page, not from a headline. The source link opens the filed document on sec.gov.

Get the full feed

This page shows only the most recent few stakes. The API returns the full history with date-range, ticker and minimum-percent filters, plus typed 8-K item codes, S-1 and merger forms, and real-time signed webhooks on new filings.

• GET /activist-stakes — the full SC 13D / 13D-A feed as JSON.
• GET /try/activist-stakes — these same rows as JSON, no key.
• Recent material 8-K events — the same live treatment for material 8-K current reports, item codes parsed to labels.
• EDGAR Events MCP server — call the feed as a tool from Claude, Cursor, or any MCP client.
• How to get SC 13D stakes as JSON, and the 13D event study on what the filings are worth.