Martin Marietta Materials
MLM
1,117 hedge funds and large institutions have $37.1B invested in Martin Marietta Materials in 2025 Q4 according to their latest regulatory filings, with 154 funds opening new positions, 362 increasing their positions, 353 reducing their positions, and 72 closing their positions.
119% more call options, than puts
Call options by funds: $51.1M | Put options by funds: $23.3M
114% more first-time investments, than exits
New positions opened: 154 | Existing positions closed: 72
6% more funds holding
Funds holding: 1,053 → 1,117 (+64)
4% more funds holding in top 10
Funds holding in top 10: 23 → 24 (+1)
2.22% more ownership
Funds ownership: 96.55% → 98.77% (+2.2%)
3% more repeat investments, than reductions
Existing positions increased: 362 | Existing positions reduced: 353
1% more capital invested
Capital invested by funds: $36.7B → $37.1B (+$418M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Victory Capital Management
San Antonio,
Texas
|
+$520M |
| 2 |
BlackRock
New York
|
+$208M |
| 3 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$133M |
| 4 |
IP
Interval Partners
New York
|
+$129M |
| 5 |
Balyasny Asset Management
Chicago,
Illinois
|
+$79.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JP Morgan Chase
New York
|
-$439M |
| 2 |
Macquarie Group
Sydney, NSW 2000,
Australia
|
-$122M |
| 3 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$84.6M |
| 4 |
Diamond Hill Capital Management
Columbus,
Ohio
|
-$84.2M |
| 5 |
Aristotle Capital Management
Los Angeles,
California
|
-$64.6M |
MLM Hedge Fund Activity: Q4 2025 in Review
1,117 of the 8,284 institutional investors tracked by Wall St. Rank reported a position in Martin Marietta Materials (MLM) for Q4 2025, worth a combined $37.1B — up 1.1% from $36.7B a quarter earlier.
Buyers outnumbered sellers: 154 funds opened new MLM positions and 72 closed out — a net gain of 82 holders — while 362 added to existing stakes and 353 trimmed.
The largest buyer was Victory Capital Management, adding an estimated $520M. The largest seller was JP Morgan Chase, cutting an estimated $439M.
- 1,117 institutional investors held Martin Marietta Materials (MLM) as of Q4 2025, up from 1,053 in Q3 2025.
- Funds reported $37.1B of Martin Marietta Materials stock for Q4 2025, up 1.1% quarter-over-quarter.
- 154 funds opened new Martin Marietta Materials positions in Q4 2025 and 72 closed out, a net change of +82 holders.
- The largest Martin Marietta Materials buyer in Q4 2025 was Victory Capital Management, an estimated $520M added.
- The largest Martin Marietta Materials seller in Q4 2025 was JP Morgan Chase, an estimated $439M sold.
Based on aggregated 13F filings for Q4 2025.