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Mesa Laboratories
MLAB

Overview Fund Activity

152 hedge funds and large institutions have $614M invested in Mesa Laboratories in 2025 Q1 according to their latest regulatory filings, with 19 funds opening new positions, 55 increasing their positions, 52 reducing their positions, and 19 closing their positions.

Holders
152
Holders Change
-4
Holders Change %
-2.56%
% of All Funds
2.07%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
19
Increased
55
Reduced
52
Closed
19
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Select Equity Group
1
Select Equity Group
New York
$8.77M
2
KCM
2
Kennedy Capital Management
Missouri
$13.4M
3
BP
3
BBR Partners
New York
$3.27M
4
CIC
4
Crawford Investment Counsel
Georgia
$3.11M
5
Russell Investments Group
5
Russell Investments Group
United Kingdom
$10.3M

Top Sellers

1
Jane Street
1
Jane Street
New York
$833K
2
Morgan Stanley
2
Morgan Stanley
New York
$25.7M
3
BlackRock
3
BlackRock
New York
$98.2M
4
RA
4
Royce & Associates
New York
$32.2M
5
Wellington Management Group
5
Wellington Management Group
Massachusetts
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
AQR Capital Management
51
AQR Capital Management
Connecticut
$968K -$324K -2,729 -25%
Creative Planning
52
Creative Planning
Kansas
$924K +$254K +2,144 +38%
Susquehanna International Group
53
Susquehanna International Group
Pennsylvania
$841K +$545K +4,594 +184%
Jane Street
54
Jane Street
New York
$833K -$3.25M -27,380 -80%
LPL Financial
55
LPL Financial
California
$828K +$475 +4 +0.1%
Canada Life
56
Canada Life
Manitoba, Canada
$823K – – –
Barclays
57
Barclays
United Kingdom
$794K -$304K -2,564 -28%
Citadel Advisors
58
Citadel Advisors
Florida
$722K -$87.2K -735 -11%
AllianceBernstein
59
AllianceBernstein
Tennessee
$672K +$9.02K +76 +1%
Prudential Financial
60
Prudential Financial
New Jersey
$656K +$7.12K +60 +1%
SEI Investments
61
SEI Investments
Pennsylvania
$643K +$593 +5 +0.1%
Mackenzie Financial
62
Mackenzie Financial
Ontario, Canada
$623K -$272K -2,290 -30%
JPMorgan Chase & Co
63
JPMorgan Chase & Co
New York
$600K +$6.53K +55 +1%
California State Teachers Retirement System (CalSTRS)
64
California State Teachers Retirement System (CalSTRS)
California
$598K – – –
Man Group
65
Man Group
United Kingdom
$594K +$594K +5,010 New
CL
66
Choreo LLC
Illinois
$580K -$19.6K -165 -3%
Deutsche Bank
67
Deutsche Bank
Germany
$558K -$52.7K -444 -9%
Boston Partners
68
Boston Partners
Massachusetts
$553K +$4.27K +36 +0.8%
KPP
69
Kings Path Partners
Texas
$494K -$310K -2,615 -39%
Thrivent Financial for Lutherans
70
Thrivent Financial for Lutherans
Minnesota
$474K -$24.6K -207 -5%
Qube Research & Technologies (QRT)
71
Qube Research & Technologies (QRT)
United Kingdom
$440K +$440K +3,708 New
T. Rowe Price Associates
72
T. Rowe Price Associates
Maryland
$426K +$14.2K +120 +3%
State of Tennessee, Department of Treasury
73
State of Tennessee, Department of Treasury
Tennessee
$416K – – –
Stifel Financial
74
Stifel Financial
Missouri
$402K +$11.7K +99 +3%
Franklin Resources
75
Franklin Resources
California
$391K +$356 +3 +0.1%
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