MESA LABORATORIES INC (MLAB) Institutional Ownership Changes & 13F Activity

MESA LABORATORIES INC (MLAB). 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 Jacobs Levy Equity Management, Inc, Jane Street Group, Llc, Royce & Associates Lp, Monimus Capital Management, Lp, and Qube Research & Technologies Ltd.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcBuy+27,467+326.1%35,890$3.57MQ2 2026Sep 02, 2026
Corient Private Wealth LlcBuy+2,4232,423$241.21KQ2 2026Aug 27, 2026
California State Teachers Retirement SystemSell-210-73.9%74$7.37KQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+3,656+117.9%6,756$672.56KQ2 2026Aug 19, 2026
Jacobs Levy Equity Management, IncBuy+86,421+194.6%130,838$13.02MQ2 2026Aug 14, 2026
Jane Street Group, LlcBuy+71,58071,580$7.13MQ2 2026Aug 14, 2026
Royce & Associates LpSell-47,834-29.7%113,395$11.29MQ2 2026Aug 14, 2026
Monimus Capital Management, LpSell-45,948-45.4%55,344$5.51MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdBuy+37,40237,402$3.72MQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+33,174+19.4%203,736$20.28MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Buy+27,197+49.8%81,755$8.14MQ2 2026Aug 14, 2026
Raymond James Financial IncBuy+27,026+22.0%149,937$14.93MQ2 2026Aug 14, 2026
Man Group PlcBuy+21,593+871.7%24,070$2.40MQ2 2026Aug 14, 2026
Two Sigma Investments, LpBuy+12,880+78.7%29,239$2.91MQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+12,470+650.8%14,386$1.43MQ2 2026Aug 14, 2026
Invesco Ltd.Buy+11,86211,862$1.18MQ2 2026Aug 14, 2026
Xtx Topco LtdBuy+11,274+181.8%17,475$1.74MQ2 2026Aug 14, 2026
Engineers Gate Manager LpBuy+10,965+291.2%14,731$1.47MQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncSell-7,961-12.8%54,463$5.42MQ2 2026Aug 14, 2026
Bank Of America CorpSell-7,919-13.7%49,952$4.97MQ2 2026Aug 14, 2026
Numerai Gp LlcBuy+6,817+62.2%17,769$1.77MQ2 2026Aug 14, 2026
Goldman Sachs Group IncSell-6,295-8.9%64,322$6.40MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Buy+6,205+38.0%22,514$2.24MQ2 2026Aug 14, 2026
Brevan Howard Capital Management LpBuy+4,4894,489$446.88KQ2 2026Aug 14, 2026
Magnetar Financial LlcBuy+4,1394,139$412.04KQ2 2026Aug 14, 2026
Kennedy Capital Management LlcSell-4,042-2.8%138,301$13.77MQ2 2026Aug 14, 2026
Crawford Investment Counsel IncBuy+3,270+3.4%98,805$9.84MQ2 2026Aug 14, 2026
Prelude Capital Management, LlcBuy+3,1413,141$312.69KQ2 2026Aug 14, 2026
Integrated Quantitative Investments LlcBuy+2,5902,590$257.83KQ2 2026Aug 14, 2026
Topline Capital Management, LlcBuy+2,3742,374$236.33KQ2 2026Aug 14, 2026
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Frequently asked questions about MLAB activity

  • Which institutional owners are buying MLAB?

    Institutional owners buying MLAB 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 MLAB activity?

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

  • Is institutional interest in MLAB increasing?

    Institutional interest in MLAB 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.