US Activist Hedge Fund Institutional SEC 13D 13G — August 28, 2026
This intelligence brief covers 39 pre-analyzed SEC filings (SC 13D/G) with enriched data, focused on activist and institutional activity in US equities. The most prominent theme is a surge of passive institutional positions, with entities like Orca Capital AG filing five separate 13Gs across disparate micro-cap companies (Jupiter Neurosciences, NFT Ltd, Elong Power), and WhiteRock Wealth Design filing 13Gs in two small regional banks (Security Midwest, PFS Bancorp). Activist signals are concentrated: a clear activist campaign is escalating at **Evogene Ltd.** (19.35% holder publicly opposing board nominees), while B. Riley’s **Biomerica** stake (10.03%) includes a board appointment right. Notable insider selling overhangs were identified at **Quantum-Si Inc.** (a 10b5-1 plan to sell up to 8.9M shares) and **CBL & Associates** (291K shares sold by top holder). A significant related-party stake was built in **Expion360** (now Expion Energy) via a $4.5M convertible note for oil & gas acquisitions, and CATL (a $100B+ battery giant) indirectly acquired 11.4% of **VNET Group**. No pervasive period-over-period revenue or margin trends were available as these are ownership filings, not financial statements.