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Who owns Mesa Laboratories (MLAB) stock

159 funds reported Mesa Laboratories (MLAB) shares in their latest 13F filings, worth $577M in all. The largest holder is Wasatch Advisors LP ($50.3M). Last quarter 80 funds added to their stakes and 49 cut them.

Largest holders of MLAB (13F)Largest holders of MLAB (13F)Wasatch Advisors LP$50.3MLong Path Partners LP$47.5MBlackRock$43.9MBoston Partners$26.4MVanguard Group$25.3MVanguard Capital Management LLC$23.6MAQR Capital Management LLC$20.3MRanger Investment Management, L.P.$17.3MMorgan Stanley$15.6MDiamond Hill Capital Management$15.5M

Largest holders (13F)

FundSharesValueChangeQuarter
Wasatch Advisors LP387,129$50.3Mincrease2026-09-30
Long Path Partners LP477,126$47.5Mincrease2026-06-30
BlackRock440,552$43.9Mincrease2026-06-30
Boston Partners265,149$26.4Mdecrease2026-06-30
Vanguard Group321,899$25.3Mincrease2025-12-31
Vanguard Capital Management LLC237,457$23.6Mincrease2026-06-30
AQR Capital Management LLC203,739$20.3Mincrease2026-06-30
Ranger Investment Management, L.P.173,988$17.3Mdecrease2026-06-30
Morgan Stanley156,979$15.6Mdecrease2026-06-30
Diamond Hill Capital Management155,771$15.5Mincrease2026-06-30
Raymond James Financial149,937$14.9Mincrease2026-06-30
Dimensional Fund Advisors LP148,395$14.8Mincrease2026-06-30
Geode Capital Management, LLC139,682$13.9Mincrease2026-06-30
Kennedy Capital Management LLC138,301$13.8Mdecrease2026-06-30
Jacobs Levy Equity Management130,838$13.0Mincrease2026-06-30

Mesa Laboratories' latest quarter

Mesa Laboratories, Q1 FY27: revenue $60.1M (+1% year over year), operating margin 11.7%, net earnings $2.8M, operating cash flow $14.7M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most MLAB stock?

By the latest 13F filings: Wasatch Advisors LP ($50.3M); Long Path Partners LP ($47.5M); BlackRock ($43.9M); Boston Partners ($26.4M); Vanguard Group ($25.3M).

What is the short interest in MLAB?

390,561 shares were sold short at the 2026-10-15 settlement, -12.64% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.