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Mesa Laboratories
MLAB

156 hedge funds and large institutions have $673M invested in Mesa Laboratories in 2024 Q4 according to their latest regulatory filings, with 12 funds opening new positions, 58 increasing their positions, 52 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

12% more repeat investments, than reductions

Existing positions increased: 58 | Existing positions reduced: 52

6% more capital invested

Capital invested by funds: $634M → $673M (+$39.4M)

3.54% more ownership

Funds ownership: 90.45% → 93.99% (+3.5%)

6% less funds holding

Funds holding: 166 → 156 (-10)

37% less first-time investments, than exits

New positions opened: 12 | Existing positions closed: 19

Holders
156
Holders Change
-10
Holders Change %
-6.02%
% of All Funds
2.05%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
12
Increased
58
Reduced
52
Closed
19
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Ameriprise
Ameriprise
Minnesota
+$12.3M
2
GT
Glenmede Trust
Pennsylvania
+$6.69M
3
CCA
Conestoga Capital Advisors
Pennsylvania
+$5.39M
4
Jane Street
Jane Street
New York
+$3.94M
5
Diamond Hill Capital Management
Diamond Hill Capital Management
Ohio
+$3.27M

Top Sellers

1
RA
Royce & Associates
New York
-$7.36M
2
GIM
Granahan Investment Management
Massachusetts
-$5.93M
3
DM
Deerfield Management
New York
-$2.55M
4
State of Wisconsin Investment Board
State of Wisconsin Investment Board
Wisconsin
-$1.25M
5
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
-$1.19M
Name Holding Trade Value Shares
Change 		Change in
Stake
Goldman Sachs
26
Goldman Sachs
New York
$3.95M +$1.72M +13,996 +88%
Wells Fargo
27
Wells Fargo
California
$3.86M -$183K -1,494 -5%
RHJA
28
Rice Hall James & Associates
California
$3.65M +$683K +5,560 +25%
Diamond Hill Capital Management
29
Diamond Hill Capital Management
Ohio
$3.51M +$3.27M +26,634 New
KTA
30
Keeley-Teton Advisors
Illinois
$2.9M -$112K -912 -4%
SBH
31
Segall Bryant & Hamill
Illinois
$2.7M -$1.6K -13 -0.1%
Luther King Capital Management (LKCM)
32
Luther King Capital Management (LKCM)
Texas
$2.63M – – –
UBS Group
33
UBS Group
Switzerland
$2.6M +$1.71M +13,960 +241%
UBS AM
34
UBS AM
Illinois
$2.54M +$1.13M +9,189 +91%
Invesco
35
Invesco
Georgia
$2.44M +$8.47K +69 +0.4%
Envestnet Asset Management
36
Envestnet Asset Management
Illinois
$2.32M -$18.4K -150 -0.8%
Ohio Public Employees Retirement System (OPERS)
37
Ohio Public Employees Retirement System (OPERS)
Ohio
$2.22M – – –
Wellington Management Group
38
Wellington Management Group
Massachusetts
$1.89M +$1.76M +14,314 New
Legal & General Group
39
Legal & General Group
United Kingdom
$1.88M -$114K -925 -6%
Select Equity Group
40
Select Equity Group
New York
$1.81M +$84K +684 +5%
Public Sector Pension Investment Board (PSP Investments)
41
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$1.79M +$260K +2,116 +18%
N
42
Nuveen
North Carolina
$1.73M – – –
RhumbLine Advisers
43
RhumbLine Advisers
Massachusetts
$1.72M -$41.4K -337 -3%
Lazard Asset Management
44
Lazard Asset Management
New York
$1.63M +$683K +5,560 +81%
AQR Capital Management
45
AQR Capital Management
Connecticut
$1.44M -$67.1K -547 -5%
Swiss National Bank
46
Swiss National Bank
Switzerland
$1.4M – – –
ECM
47
ExodusPoint Capital Management
New York
$1.28M +$880K +7,167 +284%
American Century Companies
48
American Century Companies
Missouri
$1.25M +$577K +4,698 +99%
Barclays
49
Barclays
United Kingdom
$1.22M +$52.2K +425 +5%
Victory Capital Management
50
Victory Capital Management
Texas
$1.17M -$634K -5,165 -37%
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MLAB Hedge Fund Activity: Q4 2024 in Review

156 of the 7,592 institutional investors tracked by Wall St. Rank reported a position in Mesa Laboratories (MLAB) for Q4 2024, worth a combined $673M — up 6.2% from $634M a quarter earlier.

Sellers outnumbered buyers: 19 funds closed out of MLAB and 12 opened new positions — a net loss of 7 holders — while 52 trimmed existing stakes and 58 added.

The largest buyer was Ameriprise, adding an estimated $12.3M. The largest seller was Royce & Associates, cutting an estimated $7.36M.

  • 156 institutional investors held Mesa Laboratories (MLAB) as of Q4 2024, down from 166 in Q3 2024.
  • Funds reported $673M of Mesa Laboratories stock for Q4 2024, up 6.2% quarter-over-quarter.
  • 12 funds opened new Mesa Laboratories positions in Q4 2024 and 19 closed out, a net change of -7 holders.
  • The largest Mesa Laboratories buyer in Q4 2024 was Ameriprise, an estimated $12.3M added.
  • The largest Mesa Laboratories seller in Q4 2024 was Royce & Associates, an estimated $7.36M sold.

Based on aggregated 13F filings for Q4 2024.