DH
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DH
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Financial transparency data from public SEC filings.

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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

BL

BLACKLINE, INC.

Superinvestors

Institutional investors holding BL

Consensus →
InvestorFundWeightSharesValueQuarter
Glenn WellingEngaged Capital16.68%1,367,619$50.6M2026Q1
Meridian / ArrowMarkMeridian Contrarian Fund0.06%166,394$5.5M2017Q4
Kenneth FisherFisher Asset Management0.00%269$17K2023Q4
Polen Capital ManagementPolen Capital Management0.00%4,763$270K2025Q2

Congressional Activity

Congressional data coming soon

Insider Activity

49

Total trades

$829K

Volume

25

Buys

24

Sells

Last trade: May 21, 2026

Insider Tradeslast 90 days

DateInsiderTypeValue
May 21, 2026Gregory HughesSell$50K
May 20, 2026Gregory HughesSell$75K

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.

May 20, 2026
Gregory Hughes
Sell
$24K
May 20, 2026Gregory HughesSell$27K
May 20, 2026Gregory HughesSell$33K
May 20, 2026Gregory HughesSell$69K
May 20, 2026Gregory HughesSell$62K
May 20, 2026Gregory HughesSell$43K
May 20, 2026Gregory HughesSell$27K
May 20, 2026Gregory HughesSell$53K
May 20, 2026Gregory HughesSell$8K
May 20, 2026Gregory HughesSell$9K
May 20, 2026Gregory HughesSell$37K
May 20, 2026Gregory HughesSell$4K
May 20, 2026Gregory HughesSell$5K
May 20, 2026Gregory HughesSell$8K
May 20, 2026Gregory HughesSell$9K
May 20, 2026Gregory HughesSell$69K
May 20, 2026Gregory HughesSell$63K
May 20, 2026Gregory HughesSell$75K
May 20, 2026Gregory HughesSell$37K
May 20, 2026Gregory HughesSell$23K
May 18, 2026Gregory HughesSell$14K
May 7, 2026Gregory HughesBuy–
May 7, 2026Gregory HughesBuy–
May 7, 2026Gregory HughesBuy–
May 7, 2026Gregory HughesBuy–
May 7, 2026Gregory HughesBuy–
May 7, 2026Gregory HughesBuy–
May 7, 2026Gregory HughesBuy–
May 7, 2026Gregory HughesBuy–
May 7, 2026Gregory HughesBuy–
May 7, 2026Gregory HughesBuy–
May 6, 2026Gregory HughesBuy–
May 6, 2026Gregory HughesSell$5K
Apr 1, 2026Gregory HughesBuy–
Apr 1, 2026Gregory HughesBuy–
Apr 1, 2026Gregory HughesBuy–
Apr 1, 2026Gregory HughesBuy–
Apr 1, 2026Gregory HughesBuy–
Apr 1, 2026Gregory HughesBuy–
Apr 1, 2026Gregory HughesBuy–