BLACKLINE INC (BL) Institutional Ownership and Insiders Activity

BLACKLINE INC (BL) is widely held by institutional investors, with 1 tracked firm reporting positions valued at approximately $50.60M based on SEC Form 13F filings for the quarter ended March 31, 2026.

Engaged Capital is the largest disclosed holder, reporting approximately $50.60M in BL holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Engaged Capital representing the majority of disclosed value.

Recent insider activity includes 25 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.