13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Services-Prepackaged Software
BL

BLACKLINE INC

297 institutions still hold BLACKLINE INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 09239B109·Services-Prepackaged Software·297 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$1.8B
visible holders
Holders
297
filers reporting
Concentration
16.11%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

297 institutions reported BL in Q1 2026. BlackRock, Inc. leads at 16.1% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$284M7.7M0.01%Q1 202602
CLEARLAKE CAPITAL GROUP, L.P.
CIK 0001688282
$211M5.7M31.06%Q1 202603
UBS Group AG
CIK 0001610520
$155M4.2M0.02%Q1 202604
Vanguard Portfolio Management
CIK 0002100121· Index
$150M4.1M0.01%Q1 202605
Fivespan Partners, LP
CIK 0002040262
$112M3.0M29.55%Q1 202606
FIRST MANHATTAN CO. LLC.
CIK 0000728083
$99M2.7M0.27%Q1 202607
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$87M2.3M0.00%Q1 202608
ICONIQ Capital, LLC
CIK 0001569709
$77M2.1M1.73%Q1 202609
STATE STREET CORP
CIK 0000093751
$75M2.0M0.00%Q1 202610
Neuberger Berman Group LLC
CIK 0001465109
$75M2.0M0.06%Q1 202611
HAWK RIDGE CAPITAL MANAGEMENT LP
CIK 0001609074
$70M1.9M2.54%Q1 202612
WESTWOOD HOLDINGS GROUP INC
CIK 0001165002
$54M1.5M0.39%Q1 202613
Engaged Capital LLC
CIK 0001559771
$51M1.4M16.68%Q1 202614
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$46M1.2M0.00%Q1 202615
JPMORGAN CHASE & CO
CIK 0000019617
$44M1.2M0.00%Q1 202616
MORGAN STANLEY
CIK 0000895421
$40M1.1M0.00%Q1 202617
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$39M1.1M0.01%Q1 202618
BANK OF AMERICA CORP /DE/
CIK 0000070858
$34M915K0.00%Q1 202619
FMR LLC
CIK 0000315066
$33M885K0.00%Q1 202620
Tensile Capital Management LP
CIK 0001598843
$28M751K3.98%Q1 2026
Page 1 of 15
277 more holders available. Log in →
Insiders at BLACKLINE INC
Yamamoto Mika →Hughes Gregory →Morgan-Prager Karole →Ryan Owen →Henshall David J →Duncan Storm →Rios Brunilda →Whye Barbara →