DOSSIER · 13F Holders · Q2 2026Healthcare · Industrial Instruments For Measurement, Display, and Control
MLAB

MESA LABS INC

172 institutions still hold MESA LABS INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 59064R109·Industrial Instruments For Measurement, Display, and Control·172 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$359M
visible holders
Holders
172
filers reporting
Concentration
13.24%
Long Path Partners LP #1
top holder share
AI Holders Summary · Q2 2026

172 institutions reported MLAB in Q2 2026. Long Path Partners LP leads at 13.2% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Long Path Partners LP
CIK 0001905112
$47M477K20.24%Q2 2026
02
BlackRock, Inc.
CIK 0002012383
$44M441K0.00%Q2 2026
03
Boston Partners
CIK 0001386060
$26M265K0.02%Q2 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$24M237K0.00%Q2 2026
05
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$20M204K0.01%Q2 2026
06
Ranger Investment Management, L.P.
CIK 0001319691
$17M174K1.10%Q2 2026
07
Select Equity Group, L.P.
CIK 0001592643
$16M206K0.07%Q4 2025
08
MORGAN STANLEY
CIK 0000895421
$16M157K0.00%Q2 2026
09
DIAMOND HILL CAPITAL MANAGEMENT INC
CIK 0001217541
$16M156K0.12%Q2 2026
10
RAYMOND JAMES FINANCIAL INC
CIK 0000720005
$15M150K0.00%Q2 2026
11
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$15M148K0.00%Q2 2026
12
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$14M140K0.00%Q2 2026
13
KENNEDY CAPITAL MANAGEMENT LLC
CIK 0000884589
$14M138K0.24%Q2 2026
14
STATE STREET CORP
CIK 0000093751
$12M124K0.00%Q2 2026
15
Russell Investments Group, Ltd.
CIK 0001692234
$12M122K0.01%Q2 2026
16
WASATCH ADVISORS LP
CIK 0000814133
$12M116K0.08%Q2 2026
17
ROYCE & ASSOCIATES LP
CIK 0000906304
$11M113K0.09%Q2 2026
18
CRAWFORD INVESTMENT COUNSEL INC
CIK 0000837592
$10M99K0.16%Q2 2026
19
Kent Lake PR LLC
CIK 0002037231
$9M135K4.55%Q3 2025
20
FMR LLC
CIK 0000315066
$9M89K0.00%Q2 2026
Page 1 of 9
152 more holders available. Log in →
Insiders at MESA LABS INC
Capone Mark ChristopherAlltoft Jennifer SadieLadiwala Shiraz ShabanaliHall ShannonTripeny R TonySullivan John JamesKadia SiddharthaCrennen Lyndsey Elizabeth