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BL · Blackline, Inc. · Holdings

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$27.41 -0.07 (-0.25%) At close · Oct 2
Market Cap
$1.53B
Shares
58.13M
Volume · Oct 2 684.39K Avg daily vol (3M) 996.06K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 249
Total Value: $1,762,598,936
Total Shares: 62,793,245
Showing 1–100 of 259 holdings by value · page 1 of 3

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 249 13F filers
Top Holder
13.1%
Sep 2023 → Jun 2026 · range 11.2% – 13.9%
of institutional value
Top 5
37.5%
Sep 2023 → Jun 2026 · range 36.5% – 46.4%
of institutional value
Top 10
53.0%
Sep 2023 → Jun 2026 · range 50.9% – 61.1%
of institutional value
HHI
435
Sep 2023 → Jun 2026 · range 400 – 556
Broadly held
Showing 100 of 259
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1666134 CUSIP 09239B109 13F (30d) 6 filings 6 filers Visit website Investor relations