Martin Marietta Materials (MLM)
Martin Marietta Materials on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, financials, earnings dates and insider trades. Listed on NYSE, classified by the SEC as mining & quarrying of nonmetallic minerals (no fuels).
3.2M
Short interest
settlement 2026-10-15
4.6
Days to cover
+1.3 days vs prior
52.5%
Short share of volume
2026-11-02
2
Fails to deliver
settlement 2026-10-13
Tue 3 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in MLM is 3,210,245 shares, up 303,627 shares over the last month. Over the last 48 readings it ranged from 1,316,280 shares (31 January 2025) to 3,210,245 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 703K shares a day that is 4.6 days to cover.
Embed this chart.The embed keeps its attribution line.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 3,210,245 | +0.7% | 703,247 | 4.56 |
| 2026-09-30 | 3,187,868 | +9.7% | 966,156 | 3.30 |
| 2026-09-15 | 2,906,618 | +7.4% | 838,879 | 3.46 |
| 2026-08-31 | 2,706,782 | +19.6% | 620,292 | 4.36 |
| 2026-08-14 | 2,262,403 | -5.0% | 480,099 | 4.71 |
| 2026-07-31 | 2,380,633 | -2.7% | 648,627 | 3.67 |
| 2026-07-15 | 2,445,770 | +9.7% | 578,999 | 4.22 |
| 2026-06-30 | 2,229,187 | +3.2% | 738,451 | 3.02 |
| 2026-06-15 | 2,160,946 | -2.5% | 505,934 | 4.27 |
| 2026-05-29 | 2,215,305 | +33.1% | 659,308 | 3.36 |
| 2026-05-15 | 1,664,180 | +15.6% | 479,079 | 3.47 |
| 2026-04-30 | 1,439,413 | -14.2% | 520,637 | 2.76 |
| 2026-04-15 | 1,677,013 | -11.3% | 337,926 | 4.96 |
| 2026-03-31 | 1,890,998 | +9.7% | 561,695 | 3.37 |
| 2026-03-13 | 1,723,193 | -3.6% | 655,001 | 2.63 |
| 2026-02-27 | 1,788,257 | +9.6% | 597,896 | 2.99 |
| 2026-02-13 | 1,632,050 | -22.8% | 595,283 | 2.74 |
| 2026-01-30 | 2,114,191 | +5.6% | 359,771 | 5.88 |
| 2026-01-15 | 2,002,181 | +0.6% | 467,135 | 4.29 |
| 2025-12-31 | 1,989,623 | +14.2% | 414,803 | 4.80 |
| 2025-12-15 | 1,742,510 | +7.2% | 363,078 | 4.80 |
| 2025-11-28 | 1,625,834 | +1.8% | 441,964 | 3.68 |
| 2025-11-14 | 1,596,544 | -0.1% | 472,228 | 3.38 |
| 2025-10-31 | 1,597,944 | -10.2% | 306,281 | 5.22 |
| 2025-10-15 | 1,779,938 | +7.2% | 327,176 | 5.44 |
| 2025-09-30 | 1,660,226 | +0.5% | 362,512 | 4.58 |
| 2025-09-15 | 1,652,791 | -1.9% | 364,688 | 4.53 |
| 2025-08-29 | 1,685,207 | -14.7% | 390,572 | 4.31 |
| 2025-08-15 | 1,975,623 | -8.9% | 499,848 | 3.95 |
| 2025-07-31 | 2,168,389 | -0.4% | 355,381 | 6.10 |
| 2025-07-15 | 2,176,304 | +9.0% | 337,717 | 6.44 |
| 2025-06-30 | 1,996,318 | -10.1% | 472,801 | 4.22 |
| 2025-06-13 | 2,220,490 | -4.4% | 332,264 | 6.68 |
| 2025-05-30 | 2,322,430 | +11.5% | 499,899 | 4.65 |
| 2025-05-15 | 2,082,292 | +1.7% | 388,820 | 5.36 |
| 2025-04-30 | 2,048,069 | -6.6% | 447,548 | 4.58 |
| 2025-04-15 | 2,193,755 | +18.1% | 592,833 | 3.70 |
| 2025-03-31 | 1,857,745 | +5.4% | 518,352 | 3.58 |
| 2025-03-14 | 1,763,111 | +7.3% | 895,774 | 1.97 |
| 2025-02-28 | 1,643,878 | +20.0% | 648,095 | 2.54 |
| 2025-02-14 | 1,369,457 | +4.0% | 573,573 | 2.39 |
| 2025-01-31 | 1,316,280 | -3.3% | 338,463 | 3.89 |
| 2025-01-15 | 1,361,592 | -5.5% | 378,805 | 3.59 |
| 2024-12-31 | 1,441,026 | +1.7% | 431,747 | 3.34 |
| 2024-12-13 | 1,417,394 | -8.9% | 386,697 | 3.67 |
| 2024-11-29 | 1,555,320 | +6.0% | 417,058 | 3.73 |
| 2024-11-15 | 1,466,524 | -6.0% | 504,112 | 2.91 |
| 2024-10-31 | 1,560,914 | -6.6% | 455,722 | 3.43 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of MLM volume is 52.5%, down 7.2 points over the last five sessions. Over the last 30 readings it ranged from 24.6% (25 September 2026) to 72.8% (23 October 2026). The latest reading is 3.2 points below the 30-session average of 55.7%, on 730K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 383K | 730K | 52.5% | 85 |
| 2026-10-30 | 289K | 427K | 67.7% | 1,085 |
| 2026-10-29 | 499K | 760K | 65.7% | 40 |
| 2026-10-28 | 201K | 304K | 66.3% | 49 |
| 2026-10-27 | 115K | 192K | 59.9% | 943 |
| 2026-10-26 | 212K | 356K | 59.7% | 738 |
| 2026-10-23 | 204K | 280K | 72.8% | 0 |
| 2026-10-22 | 204K | 365K | 56.0% | 271 |
| 2026-10-21 | 138K | 205K | 67.3% | 317 |
| 2026-10-20 | 244K | 389K | 62.7% | 101 |
| 2026-10-19 | 194K | 380K | 51.0% | 509 |
| 2026-10-16 | 287K | 447K | 64.3% | 564 |
| 2026-10-15 | 295K | 479K | 61.5% | 13 |
| 2026-10-14 | 188K | 434K | 43.3% | 2,614 |
| 2026-10-13 | 109K | 302K | 36.2% | 0 |
| 2026-10-12 | 97K | 228K | 42.8% | 0 |
| 2026-10-09 | 120K | 198K | 60.3% | 454 |
| 2026-10-08 | 228K | 340K | 67.2% | 2 |
| 2026-10-07 | 170K | 236K | 72.2% | 39 |
| 2026-10-06 | 148K | 306K | 48.3% | 248 |
| 2026-10-05 | 133K | 276K | 48.2% | 117 |
| 2026-10-02 | 206K | 324K | 63.5% | 473 |
| 2026-10-01 | 190K | 359K | 52.8% | 5 |
| 2026-09-30 | 207K | 333K | 62.0% | 279 |
| 2026-09-29 | 291K | 513K | 56.8% | 71 |
| 2026-09-28 | 182K | 345K | 52.8% | 3,485 |
| 2026-09-25 | 136K | 555K | 24.6% | 0 |
| 2026-09-24 | 208K | 594K | 35.0% | 99 |
| 2026-09-23 | 271K | 513K | 52.8% | 11 |
| 2026-09-22 | 149K | 339K | 44.0% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 13 October 2026, the fails-to-deliver balance in MLM is 2 shares, down 83 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (14 May 2026) to 13,092 shares (30 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-13 | 2 | $477.18 | $954 |
| 2026-10-09 | 85 | $481.57 | $41K |
| 2026-10-08 | 10 | $479.01 | $5K |
| 2026-10-07 | 2 | $489.01 | $978 |
| 2026-10-06 | 4 | $485.50 | $2K |
| 2026-09-29 | 11,539 | $490.77 | $5.7M |
| 2026-09-25 | 12 | $480.10 | $6K |
| 2026-09-08 | 8 | $514.77 | $4K |
| 2026-09-04 | 24 | $508.94 | $12K |
| 2026-09-02 | 10 | $504.92 | $5K |
| 2026-08-27 | 2,877 | $532.18 | $1.5M |
| 2026-08-21 | 31 | $525.27 | $16K |
| 2026-08-20 | 2,253 | $535.53 | $1.2M |
| 2026-08-19 | 310 | $522.81 | $162K |
| 2026-08-05 | 5,042 | $555.82 | $2.8M |
| 2026-08-03 | 877 | $525.14 | $461K |
| 2026-07-23 | 4,132 | $550.66 | $2.3M |
| 2026-07-22 | 166 | $547.33 | $91K |
| 2026-07-21 | 263 | $553.62 | $146K |
| 2026-07-16 | 1,604 | $569.32 | $913K |
| 2026-07-14 | 1,232 | $569.35 | $701K |
| 2026-07-02 | 151 | $579.24 | $87K |
| 2026-07-01 | 158 | $576.70 | $91K |
| 2026-06-30 | 13,092 | $581.23 | $7.6M |
| 2026-06-22 | 1,492 | $609.12 | $909K |
| 2026-06-10 | 131 | $572.25 | $75K |
| 2026-05-29 | 27 | $575.14 | $16K |
| 2026-05-26 | 603 | $536.48 | $323K |
| 2026-05-14 | 1 | $576.79 | $577 |
| 2026-05-05 | 187 | $603.29 | $113K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for MLM in the last 90 days. The most recent filings are listed below. Latest filing: Petro Michael J (SVP and CFO) on 2026-09-01.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-01 | Petro Michael J | SVP and CFO | Grant | 9K | $0.00 | $0 | 24K |
| 2026-08-31 | WAJSGRAS DAVID C | Director | Grant | 78 | $518.70 | $40K | 5K |
| 2026-08-31 | Pike Thomas | Director | Grant | 66 | $518.70 | $34K | 5K |
| 2026-08-31 | LYONS MARTIN J | Director | Grant | 68 | $518.70 | $35K | 442 |
| 2026-08-21 | Niemann Philipp | Director | Grant | 337 | $0.00 | $0 | 337 |
| 2026-08-03 | Petro Michael J | SVP and CFO | Tax withholding | 368 | $542.27 | $200K | 15K |
| 2026-05-29 | WAJSGRAS DAVID C | Director | Grant | 69 | $581.64 | $40K | 5K |
| 2026-05-29 | Pike Thomas | Director | Grant | 59 | $581.64 | $34K | 5K |
| 2026-05-29 | LYONS MARTIN J | Director | Grant | 61 | $581.64 | $35K | 374 |
| 2026-05-14 | WAJSGRAS DAVID C | Director | Grant | 313 | $0.00 | $0 | 5K |
| 2026-05-14 | SLAGER DONALD W | Director | Grant | 313 | $0.00 | $0 | 5K |
| 2026-05-14 | Pike Thomas | Director | Grant | 313 | $0.00 | $0 | 5K |
| 2026-05-14 | PEREZ LAREE E | Director | Grant | 313 | $0.00 | $0 | 16K |
| 2026-05-14 | Mack Mary T | Director | Grant | 313 | $0.00 | $0 | 914 |
| 2026-05-14 | LYONS MARTIN J | Director | Grant | 313 | $0.00 | $0 | 313 |
| 2026-05-14 | Foxx Anthony R | Director | Grant | 313 | $0.00 | $0 | 3K |
| 2026-05-14 | DELLY GAYLA J | Director | Grant | 313 | $0.00 | $0 | 313 |
| 2026-05-14 | Ables Dorothy M | Director | Grant | 313 | $0.00 | $0 | 4K |
| 2026-05-01 | Samborski Christopher William | EVP, COO | Grant | 8K | $0.00 | $0 | 22K |
| 2026-03-01 | Schoen George Frederick | EVP, GC and Corp. Secretary | Grant | 24K | $0.00 | $0 | 24K |
| 2026-03-01 | Petro Michael J | SVP and CFO | Grant | 3K | $0.00 | $0 | 15K |
| 2026-03-01 | Nye C Howard | Chairman, Pres & CEO | Grant | 6K | $0.00 | $0 | 176K |
| 2026-03-01 | McCunniff Donald A. | EVP and CHRO | Grant | 3K | $0.00 | $0 | 8K |
| 2026-02-27 | WAJSGRAS DAVID C | Director | Grant | 56 | $676.57 | $38K | 5K |
| 2026-02-27 | Pike Thomas | Director | Grant | 47 | $676.57 | $32K | 5K |
| 2026-02-27 | KORALESKI JOHN J | Director | Grant | 69 | $676.57 | $47K | 9K |
| 2026-02-24 | Petro Michael J | SVP and CFO | Tax withholding | 94 | $696.85 | $66K | 12K |
| 2026-02-24 | Nye C Howard | Chairman, Pres & CEO | Tax withholding | 1K | $696.85 | $851K | 170K |
| 2026-02-24 | Flynn Jason Paul | SVP and CIO | Tax withholding | 30 | $696.85 | $21K | 5K |
| 2026-02-24 | Cardin Robert J | SVP, Controller & CAO | Tax withholding | 103 | $696.85 | $72K | 12K |
| 2026-02-23 | Petro Michael J | SVP and CFO | Tax withholding | 211 | $683.60 | $144K | 12K |
| 2026-02-23 | Nye C Howard | Chairman, Pres & CEO | Tax withholding | 2K | $683.60 | $1.2M | 171K |
| 2026-02-23 | McCunniff Donald A. | EVP and CHRO | Tax withholding | 192 | $683.60 | $131K | 5K |
| 2026-02-23 | Flynn Jason Paul | SVP and CIO | Tax withholding | 177 | $683.60 | $121K | 6K |
| 2026-02-23 | Cardin Robert J | SVP, Controller & CAO | Tax withholding | 209 | $683.60 | $143K | 13K |
| 2026-02-20 | Petro Michael J | SVP and CFO | Grant | 931 | $0.00 | $0 | 13K |
| 2026-02-20 | Nye C Howard | Chairman, Pres & CEO | Grant | 6K | $0.00 | $0 | 173K |
| 2026-02-20 | Nye C Howard | Chairman, Pres & CEO | Grant | 2K | $548.75 | $1.2M | 167K |
| 2026-02-20 | McCunniff Donald A. | EVP and CHRO | Grant | 1K | $0.00 | $0 | 5K |
| 2026-02-20 | Flynn Jason Paul | SVP and CIO | Grant | 595 | $0.00 | $0 | 6K |
| 2026-02-20 | Flynn Jason Paul | SVP and CIO | Grant | 592 | $548.75 | $325K | 5K |
| 2026-02-20 | Cardin Robert J | SVP, Controller & CAO | Grant | 658 | $0.00 | $0 | 13K |
| 2026-02-17 | Petro Michael J | SVP and CFO | Tax withholding | 758 | $666.53 | $505K | 12K |
| 2026-02-17 | Petro Michael J | SVP and CFO | Grant | 2K | $0.00 | $0 | 13K |
| 2026-02-17 | Nye C Howard | Chairman, Pres & CEO | Tax withholding | 10K | $666.53 | $6.5M | 165K |
| 2026-02-17 | Nye C Howard | Chairman, Pres & CEO | Grant | 22K | $0.00 | $0 | 174K |
| 2026-02-17 | Flynn Jason Paul | SVP and CIO | Tax withholding | 107 | $666.53 | $71K | 5K |
| 2026-02-17 | Flynn Jason Paul | SVP and CIO | Grant | 222 | $0.00 | $0 | 5K |
| 2026-02-17 | Cardin Robert J | SVP, Controller & CAO | Tax withholding | 822 | $666.53 | $548K | 12K |
| 2026-02-17 | Cardin Robert J | SVP, Controller & CAO | Grant | 2K | $0.00 | $0 | 13K |
| 2025-12-16 | Nye C Howard | Chairman, Pres & CEO | Tax withholding | 298 | $629.49 | $188K | 152K |
| 2025-12-16 | McCunniff Donald A. | EVP and CHRO | Tax withholding | 50 | $629.49 | $31K | 3K |
| 2025-12-16 | Cardin Robert J | SVP, Controller & CAO | Tax withholding | 32 | $629.49 | $20K | 11K |
| 2025-12-16 | BAR ROSELYN R | Executive Vice President | Tax withholding | 66 | $629.49 | $42K | 63K |
| 2025-12-02 | BAR ROSELYN R | Executive Vice President | Gift | 488 | $0.00 | $0 | 63K |
| 2025-12-01 | Flynn Jason Paul | SVP and CIO | Tax withholding | 123 | $615.25 | $76K | 4K |
| 2025-12-01 | BAR ROSELYN R | Executive Vice President | Tax withholding | 420 | $615.25 | $258K | 63K |
| 2025-11-28 | WAJSGRAS DAVID C | Director | Grant | 61 | $623.24 | $38K | 5K |
| 2025-11-28 | Pike Thomas | Director | Grant | 51 | $623.24 | $32K | 5K |
| 2025-11-28 | KORALESKI JOHN J | Director | Grant | 75 | $623.24 | $47K | 9K |
| 2025-08-29 | WAJSGRAS DAVID C | Director | Grant | 61 | $616.40 | $38K | 5K |
| 2025-08-29 | Pike Thomas | Director | Grant | 51 | $616.40 | $31K | 4K |
| 2025-08-29 | KORALESKI JOHN J | Director | Grant | 76 | $616.40 | $47K | 9K |
| 2025-08-08 | PEREZ LAREE E | Director | Sell | 1K | $613.32 | $637K | 15K |
| 2025-07-08 | Petro Michael J | SVP and CFO | Grant | 2K | $0.00 | $0 | 11K |
| 2025-05-30 | KORALESKI JOHN J | Director | Grant | 85 | $547.55 | $47K | 9K |
| 2025-05-30 | Pike Thomas | Director | Grant | 58 | $547.55 | $32K | 4K |
| 2025-05-30 | WAJSGRAS DAVID C | Director | Grant | 69 | $547.55 | $38K | 4K |
| 2025-05-15 | Ables Dorothy M | Director | Grant | 308 | $552.86 | $170K | 4K |
| 2025-05-15 | COLE SUE W | Director | Grant | 308 | $552.86 | $170K | 20K |
| 2025-05-15 | Foxx Anthony R | Director | Grant | 308 | $552.86 | $170K | 2K |
| 2025-05-15 | KORALESKI JOHN J | Director | Grant | 308 | $552.86 | $170K | 9K |
| 2025-05-15 | Mack Mary T | Director | Grant | 308 | $552.86 | $170K | 601 |
| 2025-05-15 | PEREZ LAREE E | Director | Grant | 308 | $552.86 | $170K | 16K |
| 2025-05-15 | Pike Thomas | Director | Grant | 308 | $552.86 | $170K | 4K |
| 2025-05-15 | SLAGER DONALD W | Director | Grant | 308 | $552.86 | $170K | 5K |
| 2025-05-15 | WAJSGRAS DAVID C | Director | Grant | 308 | $552.86 | $170K | 4K |
| 2025-05-15 | Cardin Robert J | SVP, Interim CFO, Ctrl & CAO | Grant | 3K | $0.00 | $0 | 11K |
| 2025-03-05 | McCunniff Donald A. | EVP and CHRO | Sell | 1K | $475.00 | $633K | 4K |
| 2025-03-05 | McCunniff Donald A. | EVP and CHRO | Exercise or conversion | 1K | $154.58 | $206K | 5K |
| 2025-03-04 | Petro Michael J | SVP - Strategy and Development | Buy | 550 | $454.37 | $250K | 9K |
| 2025-02-28 | KORALESKI JOHN J | Director | Grant | 96 | $483.14 | $46K | 8K |
| 2025-02-28 | Pike Thomas | Director | Grant | 65 | $483.14 | $31K | 4K |
| 2025-02-28 | WAJSGRAS DAVID C | Director | Grant | 78 | $483.14 | $38K | 4K |
| 2025-02-24 | BAR ROSELYN R | Executive Vice President | Tax withholding | 402 | $490.64 | $197K | 64K |
| 2025-02-24 | Brooks Oliver W | SVP - Enterprise Excellence | Tax withholding | 188 | $490.64 | $92K | 5K |
| 2025-02-24 | Cardin Robert J | Sr. VP, Controller and CAO | Tax withholding | 216 | $490.64 | $106K | 8K |
| 2025-02-24 | Nickolas James AJ | EVP and CFO | Tax withholding | 450 | $490.64 | $221K | 27K |
| 2025-02-24 | Nye C Howard | Chairman, Pres & CEO | Tax withholding | 2K | $490.64 | $997K | 152K |
| 2025-02-24 | Petro Michael J | SVP - Strategy and Development | Tax withholding | 200 | $490.64 | $98K | 8K |
| 2025-02-21 | BAR ROSELYN R | Executive Vice President | Grant | 2K | $0.00 | $0 | 64K |
| 2025-02-21 | BAR ROSELYN R | Executive Vice President | Grant | 738 | $391.87 | $289K | 62K |
| 2025-02-21 | Brooks Oliver W | SVP - Enterprise Excellence | Grant | 744 | $0.00 | $0 | 5K |
| 2025-02-21 | Cardin Robert J | Sr. VP, Controller and CAO | Grant | 795 | $0.00 | $0 | 8K |
| 2025-02-21 | KOHN BRADLEY D | SVP, General Counsel and Secy | Grant | 981 | $0.00 | $0 | 4K |
| 2025-02-21 | McCunniff Donald A. | EVP and CHRO | Grant | 2K | $0.00 | $0 | 4K |
| 2025-02-21 | Nickolas James AJ | EVP and CFO | Grant | 2K | $0.00 | $0 | 27K |
| 2025-02-21 | Nye C Howard | Chairman, Pres & CEO | Grant | 7K | $0.00 | $0 | 154K |
| 2025-02-21 | Nye C Howard | Chairman, Pres & CEO | Grant | 2K | $391.87 | $833K | 147K |
| 2025-02-21 | Petro Michael J | SVP - Strategy and Development | Grant | 733 | $0.00 | $0 | 9K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON6 holders report 5% or more of MLM in their latest filing, 4 on Schedule 13D (active intent). The largest reported stake is Kalk en Dolomiet Maatschappij SA at 15.4% of the class (10,953,543 shares), filed 2026-08-24 for an event on 2026-08-21.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-30 | 13G/Ano. 1 | Vanguard Portfolio Managementinvestment adviser | 3.3M | 4.7% | 2026-09-30 |
| 2026-10-30 | 13G/Ano. 1 | Vanguard Capital Managementinvestment adviser | 4.6M | 6.4% | 2026-09-30 |
| 2026-08-24 | 13D | Kalk en Dolomiet Maatschappij SAcorporation | 11.0M | 15.4% | 2026-08-21 |
| 2026-08-24 | 13D | Financiere de Gestions Internationales SCAcorporation | 11.0M | 15.4% | 2026-08-21 |
| 2026-08-24 | 13D | GPI SAcorporation | 11.0M | 15.4% | 2026-08-21 |
| 2026-08-24 | 13D | LNA Holding SRLcorporation | 11.0M | 15.4% | 2026-08-21 |
| 2026-08-07 | 13G | STATE STREET CORPORATIONparent holding company | 3.2M | 5.2% | 2026-06-30 |
| 2026-03-27 | 13G/Ano. 12 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding MLM at their latest 13F. JSON6 of the 30 tracked managers held MLM at their latest 13F, $133.7M in total at quarter-end prices. AQR Capital Management is the largest at $38.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| AQR Capital Management | 2026-06-30 | 67K | $38.6M | 0.01% | +2K |
| Millennium Management | 2026-06-30 | 54K | $31.2M | 0.01% | +39K |
| Two Sigma Investments | 2026-06-30 | 51K | $29.7M | 0.02% | -43K |
| Renaissance Technologies | 2026-06-30 | 32K | $18.4M | 0.03% | new |
| Citadel Advisors | 2026-06-30 | 26K | $14.9M | 0.00% | +9K |
| D. E. Shaw & Co. | 2026-06-30 | 1K | $825K | 0.00% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q2 FY 2026 (quarter ended 2026-06-30) Martin Marietta Materials reported revenue of $1.95B, up 21.0% from the same quarter a year earlier, and net income of $251.0M (4.17 diluted EPS). In FY 2025 it generated $1.78B of operating cash flow and spent $450.0M on buybacks and $197.0M on dividends. As of 2026-06-30, cash was $112.0M against $5.95B of debt.
- Cash
- $112.0M
- Debt
- $5.95B
- Equity
- $11.55B
- Total assets
- $21.30B
- Shares outstanding
- 60,065,839
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $1.95B | $251.0M | 12.9% | 4.17 |
| Q1 FY 2026 | 2026-03-31 | $1.36B | $1.51B | 111.1% | 25.06 |
| Q4 FY 2025 | 2025-12-31 | $1.53B | $279.0M | 18.2% | n/a |
| Q3 FY 2025 | 2025-09-30 | $1.85B | $414.0M | 22.4% | 6.85 |
| Q2 FY 2025 | 2025-06-30 | $1.61B | $328.0M | 20.4% | 5.43 |
| Q1 FY 2025 | 2025-03-31 | $1.16B | $116.0M | 10.0% | 1.90 |
| Q4 FY 2024 | 2024-12-31 | $1.41B | $294.0M | 20.8% | n/a |
| Q3 FY 2024 | 2024-09-30 | $1.64B | $363.0M | 22.1% | 5.91 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $6.15B | $1.14B | $1.78B | $807.0M | $450.0M | $197.0M |
| FY 2024 | 2024-12-31 | $5.66B | $2.00B | $1.46B | $855.0M | $450.0M | $189.0M |
| FY 2023 | 2023-12-31 | $5.85B | $1.17B | $1.53B | $650.0M | $150.0M | $174.0M |
| FY 2022 | 2022-12-31 | $6.16B | $867.0M | $991.0M | $482.0M | $150.0M | $160.0M |
| FY 2021 | 2021-12-31 | $5.41B | $702.5M | $1.14B | $423.1M | $0 | $147.8M |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-27 from the cover page.
What this page is
Martin Marietta Materials in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Martin Marietta Materials (MLM), SEC CIK 916076, listed on NYSE, classified by the SEC as mining & quarrying of nonmetallic minerals (no fuels). The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-13.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-10-30.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-07-30.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-01.JSON and CSV
- Company record
- EDGAR filing index for CIK 916076Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as mining & quarrying of nonmetallic minerals (no fuels)
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Frequently Asked Questions
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Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.