DOSSIER · 13F Holders · Q3 2026
BLACK STONE MINERALS L P
4 institutions still hold BLACK STONE MINERALS L P as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 09225M951·4 13F holders·last filed Sep 30, 2026
AI Holders Summary · Q3 2026
4 institutions reported BLACK STONE MINERALS L P in Q3 2026. SIMPLEX TRADING, LLC leads at 41.0% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.