DOSSIER · 13F Holders · Q1 2026
ASRT
ASSERTIO HLDGS INC
8 institutions still hold ASSERTIO HLDGS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 04546C304·8 13F holders·last filed Mar 31, 2026
AI Holders Summary · Q1 2026
Assertio Holdings (ASRT) shows a more developed base than most micro-caps — 61 holders and about $43.7M in combined 13F value as of Q1 2026. Nantahala Capital leads decisively at roughly $13.2M (30% of the book), well ahead of index holders Vanguard ($5.1M) and Renaissance Technologies ($4.4M). Nantahala's outsized stake is the conviction signal in an otherwise index-heavy register.
Analysis generated by 13F Insight from SEC Form 13F filing data · Q1 2026. Methodology
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.