We are live on ! Find out more
MLM icon

Martin Marietta Materials
MLM

950 hedge funds and large institutions have $28.5B invested in Martin Marietta Materials in 2025 Q1 according to their latest regulatory filings, with 108 funds opening new positions, 355 increasing their positions, 323 reducing their positions, and 136 closing their positions.

New
Increased
Maintained
Reduced
Closed

23% more call options, than puts

Call options by funds: $73.4M | Put options by funds: $59.7M

1.11% more ownership

Funds ownership: 96.72% → 97.83% (+1.1%)

10% more repeat investments, than reductions

Existing positions increased: 355 | Existing positions reduced: 323

4% less funds holding

Funds holding: 990 → 950 (-40)

7% less capital invested

Capital invested by funds: $30.5B → $28.5B (-$2.08B)

18% less funds holding in top 10

Funds holding in top 10: 17 → 14 (-3)

21% less first-time investments, than exits

New positions opened: 108 | Existing positions closed: 136

Holders
950
Holders Change
-40
Holders Change %
-4.04%
% of All Funds
12.74%
Holding in Top 10
14
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-17.65%
% of All Funds
0.19%
New
108
Increased
355
Reduced
323
Closed
136
Calls
$73.4M
Puts
$59.7M
Net Calls
+$13.7M
Net Calls Change
+$14M

Top Buyers

Rank Fund Capital Flow
1
American Century Companies
American Century Companies
Missouri
+$178M
2
Eagle Capital Management (New York)
Eagle Capital Management (New York)
New York
+$169M
3
JP Morgan Chase
JP Morgan Chase
New York
+$137M
4
CIBC Private Wealth Group
CIBC Private Wealth Group
Georgia
+$110M
5
Diamond Hill Capital Management
Diamond Hill Capital Management
Ohio
+$94.3M

Top Sellers

Rank Fund Capital Flow
1
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$333M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$284M
3
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$199M
4
Select Equity Group
Select Equity Group
New York
-$110M
5
William Blair Investment Management
William Blair Investment Management
Illinois
-$73.9M
Name Holding Trade Value Shares
Change 		Change in
Stake
T
901
Tidemark
California
$3.35K – – –
BGAI
902
Bruce G. Allen Investments
Colorado
$3.35K +$1.02K +2 +40%
MAFA
903
MJT & Associates Financial Advisory
Minnesota
$3.35K +$3.56K +7 New
BAM
904
Bellevue Asset Management
Washington
$3.35K – – –
AW
905
Avion Wealth
Texas
$3K – – –
CAL
906
Capital Advisors Ltd
Ohio
$3K +$2.03K +4 +133%
WIM
907
Westside Investment Management
California
$2.91K – – –
HWP
908
Highline Wealth Partners
California
$2.87K +$1.02K +2 +50%
CWA
909
Carolina Wealth Advisors
South Carolina
$2.87K – – –
DPW
910
DiNuzzo Private Wealth
Pennsylvania
$2.87K – – –
GFL
911
Granite FO LLC
New Hampshire
$2.87K – – –
RS
912
Rakuten Securities
Japan
$2.87K +$3.05K +6 New
OP
913
ORG Partners
Indiana
$2.42K +$2.54K +5 New
KFI
914
Key Financial Inc
Pennsylvania
$2.39K – – –
MAM
915
Morse Asset Management
Connecticut
$2.39K – – –
SIC
916
SJS Investment Consulting
Ohio
$2.39K +$508 +1 +25%
PCM
917
Penserra Capital Management
California
$2K -$78.7K -155 -96%
HFS
918
Hughes Financial Services
Virginia
$1.94K +$2.03K +4 New
TCM
919
TD Capital Management
Tennessee
$1.92K – – –
TFM
920
TFC Financial Management
Massachusetts
$1.91K -$5.59K -11 -73%
HWA
921
Heritage Wealth Advisors
Virginia
$1.91K -$3.05K -6 -60%
TC
922
Tacita Capital
Ontario, Canada
$1.91K – – –
DWM
923
Dogwood Wealth Management
Kansas
$1.91K +$2.03K +4 New
WT
924
Washington Trust
Rhode Island
$1.43K -$6.09K -12 -80%
BC
925
Barrett & Company
Rhode Island
$1.43K – – –
35 36
37
38 39

MLM Hedge Fund Activity: Q1 2025 in Review

950 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Martin Marietta Materials (MLM) for Q1 2025, worth a combined $28.5B — down 6.8% from $30.5B a quarter earlier.

Sellers outnumbered buyers: 136 funds closed out of MLM and 108 opened new positions — a net loss of 28 holders — while 323 trimmed existing stakes and 355 added.

The largest buyer was American Century Companies, adding an estimated $178M. The largest seller was Baillie Gifford & Co, cutting an estimated $333M.

  • 950 institutional investors held Martin Marietta Materials (MLM) as of Q1 2025, down from 990 in Q4 2024.
  • Funds reported $28.5B of Martin Marietta Materials stock for Q1 2025, down 6.8% quarter-over-quarter.
  • 108 funds opened new Martin Marietta Materials positions in Q1 2025 and 136 closed out, a net change of -28 holders.
  • The largest Martin Marietta Materials buyer in Q1 2025 was American Century Companies, an estimated $178M added.
  • The largest Martin Marietta Materials seller in Q1 2025 was Baillie Gifford & Co, an estimated $333M sold.

Based on aggregated 13F filings for Q1 2025.