BLACKLINE INC (BL) Institutional Ownership Changes & 13F Activity

BLACKLINE INC (BL). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include California State Teachers Retirement System, Lynrock Lake Lp, Citadel Advisors Llc, Hawk Ridge Capital Management Lp, and Qube Research & Technologies Ltd.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+27,250+121.2%49,740$1.40MQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustSell-102-24.1%322$9.04KQ2 2026Sep 04, 2026
Citadel Advisors LlcBuy+846,379+531.6%1,005,578$28.23MQ2 2026Sep 02, 2026
California State Teachers Retirement SystemBuy+1,709,741+2733.8%1,772,282$1.77MQ2 2026Aug 24, 2026
Fulcrum Asset Management LlpBuy+5050$1.40KQ2 2026Aug 18, 2026
Public Employees Retirement System Of OhioSell-59,375-51.4%56,161$1.58MQ2 2026Aug 17, 2026
Jefferies Financial Group Inc.Buy+11,20011,200$314.38KQ2 2026Aug 17, 2026
Empowered Funds, LlcBuy+2,146+37.8%7,829$219.76KQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcSell-1-33.3%2$56.00Q2 2026Aug 17, 2026
Lynrock Lake LpBuy+1,066,6661,066,666$29.94MQ2 2026Aug 14, 2026
Hawk Ridge Capital Management LpSell-692,857-36.6%1,197,966$33.63MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdBuy+659,449659,449$18.51MQ2 2026Aug 14, 2026
Sixth Street Partners Management Company, L.P.Buy+610,370610,370$17.13MQ2 2026Aug 14, 2026
Price T Rowe Associates IncBuy+553,844+203.7%825,688$23.18MQ2 2026Aug 14, 2026
Engaged CapitalSell-540,000-39.5%827,619$23.23MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+492,812+96.8%1,001,741$28.12MQ2 2026Aug 14, 2026
Ameriprise Financial IncSell-343,275-68.9%155,301$4.36MQ2 2026Aug 14, 2026
Susquehanna International Group, LlpBuy+310,128+134.5%540,649$15.18MQ2 2026Aug 14, 2026
Jane Street Group, LlcBuy+303,227+457.5%369,512$10.37MQ2 2026Aug 14, 2026
First Manhattan Co. Llc.Sell-273,477-10.2%2,403,510$67.47MQ2 2026Aug 14, 2026
Group One Trading LlcBuy+230,780230,780$6.48MQ2 2026Aug 14, 2026
Palisade Capital Management, LpSell-230,688-52.3%210,544$5.91MQ2 2026Aug 14, 2026
Potrero Capital Research LlcSell-182,559-43.3%238,590$6.70MQ2 2026Aug 14, 2026
Westwood Holdings Group IncSell-138,419-9.5%1,318,230$37.00MQ2 2026Aug 14, 2026
Exoduspoint Capital Management, LpBuy+127,320+269.6%174,550$4.90MQ2 2026Aug 14, 2026
Fund 1 Investments, LlcBuy+125,000125,000$3.51MQ2 2026Aug 14, 2026
Armistice Capital, LlcBuy+110,000+65.5%278,000$7.80MQ2 2026Aug 14, 2026
Tudor Investment Corp Et AlBuy+108,432108,432$3.04MQ2 2026Aug 14, 2026
Royal Bank Of CanadaSell-98,925-38.1%160,425$4.50MQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncBuy+89,520+17.2%610,370$17.13MQ2 2026Aug 14, 2026
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Frequently asked questions about BL activity

  • Which institutional owners are buying BL?

    Institutional owners buying BL include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in BL activity?

    "Buy" means an investor increased their reported position in BL compared to the prior reporting period. This reflects growing exposure to BLACKLINE INC (BL) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in BL increasing?

    Institutional interest in BL can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.