Cornerstone Management, Inc. reported VANGUARD INDEX FDS (VUG) in 13 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 27.11% in 2025 Q2. The latest visible filing shows VUG at 23.90% of the fund.
This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.
This page is designed to answer the real investor question behind a 13F filing: how meaningful was Cornerstone Management, Inc.'s position in VANGUARD INDEX FDS, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.
VUG was reported at 23.90% of portfolio in the most recent visible filing.
Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.
Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.
Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.
These are the practical questions this page is built to answer before you even open the full history table.
Cornerstone Management, Inc. reported VUG across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.
The largest reported portfolio weight for VUG was 27.11% in 2025 Q2.
The most recent filing on this page is 2026 Q1, when Cornerstone Management, Inc. reported 343,333 shares, equal to 23.90% of portfolio, with an estimated market value of $150.0M.
The chart compares Cornerstone Management, Inc.'s quarterly VUG portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.
Based on 13F filing dates vs. subsequent VUG price moves, Cornerstone Management, Inc. correctly timed 4 out of 12 reported position changes (33%). The annualised alpha on VUG relative to SPY over the holding period was +2.2%.