Stockbridge Partners LLC: VULCAN MATLS CO (VMC): Quarterly 13F Position History
As of Q1 2026, Stockbridge Partners LLC reported 1,141,672 shares of VULCAN MATLS CO (VMC), worth $310.9M and representing 7.5% of its 13F equity book. Quarter-over-quarter share count change: 175,412 (-13.3%) . The position first appeared in Q2 2020 and has been disclosed across 24 13F-HR filings in Pactolio's tracked window.
- 1,141,672Shares Held (Latest Filing)
- $310.9MReported Market Value (Latest Filing)
- 7.5%Portfolio Weight (% of 13F Equity Book)
- 175,412Quarter-over-Quarter Share Change
- -$64.8MQuarter-over-Quarter Value Change
- 2,285,202Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 24 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,141,672 | 175,412 | -13.3% | $310.9M | 7.5% | $272.3 |
| Q4 2025 | 1,317,084 | 79,441 | -5.7% | $375.7M | 8.3% | $285.2 |
| Q3 2025 | 1,396,525 | 23,127 | -1.6% | $429.6M | 8.3% | $307.6 |
| Q2 2025 | 1,419,652 | +24,157 | +1.7% | $370.3M | 7.2% | $260.8 |
| Q1 2025 | 1,395,495 | 350,987 | -20.1% | $325.6M | 7.2% | $233.3 |
| Q4 2024 | 1,746,482 | +177,918 | +11.3% | $449.2M | 9.5% | $257.2 |
| Q3 2024 | 1,568,564 | +137,365 | +9.6% | $392.8M | 7.9% | $250.4 |
| Q2 2024 | 1,431,199 | 290,552 | -16.9% | $355.9M | 7.4% | $248.7 |
| Q1 2024 | 1,721,751 | 335,584 | -16.3% | $469.9M | 9.7% | $272.9 |
| Q4 2023 | 2,057,335 | +187,648 | +10.0% | $467.0M | 10.0% | $227.0 |
| Q3 2023 | 1,869,687 | 179,004 | -8.7% | $377.7M | 8.4% | $202.0 |
| Q2 2023 | 2,048,691 | +259,753 | +14.5% | $461.9M | 9.4% | $225.4 |
| Q1 2023 | 1,788,938 | 155,819 | -8.0% | $306.9M | 7.1% | $171.6 |
| Q4 2022 | 1,944,757 | 340,445 | -14.9% | $340.5M | 9.1% | $175.1 |
| Q3 2022 | 2,285,202 | +269,566 | +13.4% | $360.4M | 10.2% | $157.7 |
| Q2 2022 | 2,015,636 | +262,558 | +15.0% | $286.4M | 7.5% | $142.1 |
| Q1 2022 | 1,753,078 | +105,274 | +6.4% | $322.0M | 6.9% | $183.7 |
| Q4 2021 | 1,647,804 | +272,160 | +19.8% | $342.1M | 6.9% | $207.6 |
| Q3 2021 | 1,375,644 | +47,571 | +3.6% | $232.7M | 4.8% | $169.2 |
| Q2 2021 | 1,328,073 | +674,925 | +103.3% | $231.2M | 4.9% | $174.1 |
| Q1 2021 | 653,148 | 270,973 | -29.3% | $110.2M | 2.7% | $168.8 |
| Q4 2020 | 924,121 | 3,131 | -0.3% | $137.1M | 3.2% | $148.3 |
| Q3 2020 | 927,252 | +565,829 | +156.6% | $125.7M | 3.5% | $135.5 |
| Q2 2020 | 361,423 | — | — | $41.9M | 1.3% | $115.9 |
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, not the manager's cost basis. See the full methodology document for the normalization rules.
When did Stockbridge Partners LLC first disclose a VMC position in 13F-HR filings?
Stockbridge Partners LLC first reported VULCAN MATLS CO (VMC) on its 13F-HR filing for the period ending 2020-06-30 (Q2 2020). The position has appeared on 24 reported quarters within Pactolio's tracked window.
What was Stockbridge Partners LLC's most recent quarter-over-quarter share-count change in VMC?
Between Q4 2025 and Q1 2026, Stockbridge Partners LLC reduced its VMC position by 175,412 shares (-13.3%), leaving 1,141,672 shares at a market value of $310.9M.
Does the implied price-per-share represent Stockbridge Partners LLC's cost basis in VMC?
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.