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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
NL
5
Nuveen LLC
North Carolina
$2.3M

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 Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$98.2M 827,616 -16,748 -2%
CCA
2
Conestoga Capital Advisors
Pennsylvania
$67.8M 571,358 -1,679 -0.3%
Vanguard Group
3
Vanguard Group
Pennsylvania
$45.6M 384,613 +1,757 +0.5%
RA
4
Royce & Associates
New York
$32.2M 271,118 -16,089 -6%
Raymond James Financial
5
Raymond James Financial
Florida
$31.3M 264,013 +16,218 +7%
RIM
6
Ranger Investment Management
Texas
$27.4M 230,988 -2,567 -1%
State Street
7
State Street
Massachusetts
$26.1M 219,543 -5,358 -2%
Morgan Stanley
8
Morgan Stanley
New York
$25.7M 216,290 -24,236 -10%
GCM
9
Geneva Capital Management
Wisconsin
$22.5M 189,312 +299 +0.2%
Ameriprise
10
Ameriprise
Minnesota
$19.8M 166,768 +14,906 +10%
GT
11
Glenmede Trust
Pennsylvania
$17.4M 146,544 -5,303 -3%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$16.3M 137,516 +13,070 +11%
KCM
13
Kennedy Capital Management
Missouri
$13.4M 113,271 +38,665 +52%
Dimensional Fund Advisors
14
Dimensional Fund Advisors
Texas
$13.2M 111,247 -2,603 -2%
Russell Investments Group
15
Russell Investments Group
United Kingdom
$10.3M 87,056 +18,986 +28%
Northern Trust
16
Northern Trust
Illinois
$9.78M 82,444 -11,345 -12%
Janus Henderson Group
17
Janus Henderson Group
United Kingdom
$9.65M 80,744 -5,542 -6%
Select Equity Group
18
Select Equity Group
New York
$8.77M 73,897 +60,186 +439%
Bank of America
19
Bank of America
North Carolina
$7.99M 67,307 -1,167 -2%
Charles Schwab
20
Charles Schwab
California
$7.77M 65,464 +2,875 +5%
Bank of New York Mellon
21
Bank of New York Mellon
New York
$6.5M 54,767 +1,463 +3%
Comerica Bank
22
Comerica Bank
Texas
$5.25M 44,285 +1,866 +4%
Principal Financial Group
23
Principal Financial Group
Iowa
$5.18M 43,659 +5,300 +14%
MIM
24
Meros Investment Management
Texas
$3.79M 31,964 -8,299 -21%
Royal Bank of Canada
25
Royal Bank of Canada
Ontario, Canada
$3.65M 30,772 +353 +1%
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