CORE LABORATORIES INC (CLB) Institutional Ownership Changes & 13F Activity

CORE LABORATORIES INC (CLB). 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 Disciplined Growth Investors, Ariel Appreciation Fund, T. Rowe Price Investment Management, Inc., Gendell Jeffrey L, and Citadel Advisors Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+542+4.2%13,361$155.66KQ2 2026Sep 09, 2026
Citadel Advisors LlcBuy+216,815+140.1%371,615$4.33MQ2 2026Sep 02, 2026
Corient Private Wealth LlcSell-1,647-12.0%12,087$140.81KQ2 2026Aug 27, 2026
California State Teachers Retirement SystemBuy+9,554+22.2%52,527$611.94KQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+10,67210,672$124.33KQ2 2026Aug 19, 2026
Disciplined Growth InvestorsSell-1,894,938-38.4%3,042,177$35.44MQ2 2026Aug 14, 2026
Ariel Appreciation FundBuy+904,557+6.9%14,074,945$163.97MQ2 2026Aug 14, 2026
T. Rowe Price Investment Management, Inc.Sell-618,863-56.1%485,032$5.65MQ2 2026Aug 14, 2026
Gendell Jeffrey LBuy+442,513+68.2%1,090,973$12.71MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+202,140202,140$2.35MQ2 2026Aug 14, 2026
Archon Capital Management LlcBuy+178,700178,700$2.08MQ2 2026Aug 14, 2026
Bank Of America CorpSell-137,333-61.1%87,285$1.02MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Buy+129,644+109.5%248,070$2.89MQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncSell-121,885-17.7%565,065$6.58MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+98,95998,959$1.15MQ2 2026Aug 14, 2026
Goldman Sachs Group IncSell-97,258-11.5%751,643$8.76MQ2 2026Aug 14, 2026
Xtx Topco LtdBuy+85,33185,331$994.11KQ2 2026Aug 14, 2026
Van Eck Associates CorpSell-78,784-16.7%393,682$4.59MQ2 2026Aug 14, 2026
Hotchkis & Wiley Capital Management LlcBuy+54,880+30.5%235,015$2.74MQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+47,64347,643$555.04KQ2 2026Aug 14, 2026
Raymond James Financial IncBuy+46,77646,776$544.94KQ2 2026Aug 14, 2026
Wells Fargo & Company/MnSell-31,925-16.8%158,391$1.85MQ2 2026Aug 14, 2026
Price T Rowe Associates IncBuy+27,052+47.3%84,194$981.00KQ2 2026Aug 14, 2026
Hsbc Holdings PlcBuy+26,07726,077$288.15KQ2 2026Aug 14, 2026
Mac Alpha Capital Management, LpSell-20,302-7.2%262,894$3.06MQ2 2026Aug 14, 2026
Aquatic Capital Management LlcBuy+18,80118,801$219.03KQ2 2026Aug 14, 2026
Barclays PlcBuy+14,185+158.4%23,140$269.58KQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+12,884+24.8%64,809$755.03KQ2 2026Aug 14, 2026
Susquehanna International Group, LlpSell-11,648-36.0%20,702$241.18KQ2 2026Aug 14, 2026
Sei Investments CoSell-6,273-37.2%10,570$123.15KQ2 2026Aug 14, 2026
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Frequently asked questions about CLB activity

  • Which institutional owners are buying CLB?

    Institutional owners buying CLB 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 CLB activity?

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

  • Is institutional interest in CLB increasing?

    Institutional interest in CLB 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.