Cornerstone Planning Group LLC
Position in MLM — Martin Marietta Materials Inc
CIK 1822587
FAIRFIELD, NJ
Position in MLM
as of Jun 30, 2026
· filed Jul 29, 2026
Position Value
$25,374
-$11,712 QoQ
Shares Held
44
-30.2% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#922
of 1,074 holders
Holding Since
Dec 2022
14 quarters on record
Voting authority
Sole 0%
Shared 0%
None 100%
Common Shares in MLM Over Time
Shares Held
Position Value (USD)
Position in Building Materials
Basic Materials · as of Jun 30, 2026Cornerstone Planning Group LLC holds $59,834 across 4 Building Materials names. MLM ranks #2 (42.4% of the industry book) .
All Filings in MLM
Export CSV
14 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $25,374 | 44 | Shares | Sole | 2026-07-29 | |
| 2026-03-31 | $37,086 | 63 | Shares | Sole | 2026-05-06 | |
| 2025-12-31 | $31,755 | 51 | Shares | Sole | 2026-02-02 | |
| 2025-09-30 | $46,010 | 73 | Shares | Sole | 2025-11-04 | |
| 2025-06-30 | $15,370 | 28 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $17,690 | 37 | Shares | Sole | 2025-04-30 | |
| 2024-12-31 | $14,978 | 29 | Shares | Sole | 2025-01-29 | |
| 2024-09-30 | $18,300 | 34 | Shares | Sole | 2024-11-05 | |
| 2024-06-30 | $17,879 | 33 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $22,101 | 36 | Shares | Sole | 2024-05-07 | |
| 2023-12-31 | $17,960 | 36 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $13,135 | 32 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $10,618 | 23 | Shares | Sole | 2023-08-15 | |
| 2022-12-31 | $2,027 | 6 | Shares | Sole | 2023-02-14 | |
| No filing history on record for this holder in this stock. | ||||||