RDST Capital LLC: MARTIN MARIETTA MATLS INC (MLM): Quarterly 13F Position History
As of Q2 2026, RDST Capital LLC reported 163,550 shares of MARTIN MARIETTA MATLS INC (MLM), worth $94.3M and representing 7.8% of its 13F equity book. Quarter-over-quarter share count change: + 68,455 (+72.0%) . The position first appeared in Q2 2025 and has been disclosed across 5 13F-HR filings in Pactolio's tracked window.
- 163,550Shares Held (Latest Filing)
- $94.3MReported Market Value (Latest Filing)
- 7.8%Portfolio Weight (% of 13F Equity Book)
- +68,455Quarter-over-Quarter Share Change
- +$38.3MQuarter-over-Quarter Value Change
- 163,550Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 5 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 163,550 | +68,455 | +72.0% | $94.3M | 7.8% | $576.7 |
| Q1 2026 | 95,095 | 6,405 | -6.3% | $56.0M | 5.4% | $588.7 |
| Q4 2025 | 101,500 | 10,075 | -9.0% | $63.2M | 6.0% | $622.7 |
| Q3 2025 | 111,575 | +6,035 | +5.7% | $70.3M | 6.6% | $630.3 |
| Q2 2025 | 105,540 | – | – | $57.9M | 5.8% | $549.0 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares, a quarter-end mark rather than the manager's cost basis. See the full methodology document for the normalization rules.
When did RDST Capital LLC first disclose a MLM position in 13F-HR filings?
RDST Capital LLC first reported MARTIN MARIETTA MATLS INC (MLM) on its 13F-HR filing for the period ending 2025-06-30 (Q2 2025). The position has appeared on 5 reported quarters within Pactolio's tracked window.
What was RDST Capital LLC's most recent quarter-over-quarter share-count change in MLM?
Between Q1 2026 and Q2 2026, RDST Capital LLC added 68,455 shares of MLM (+72.0%), bringing the total reported position to 163,550 shares at a market value of $94.3M.
Does the implied price-per-share represent RDST Capital LLC's cost basis in MLM?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.