# VANGUARD INDEX FDS (VO) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 922908629
Page URL: https://superinvestorclub.com/stock/VO
Last updated: 2026-08-29T13:49:05.331Z

## Summary

As of the most recent 13F filing period, VANGUARD INDEX FDS (VO) is held by 4 tracked superinvestors with an aggregate position value of $9.0M representing 03934837472320693312 shares.

## Top institutional holders (4)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Mairs & Power](https://superinvestorclub.com/manager/92) | Mairs & Power | 39348 | $3.2M | 0.03% | 2026-06-30 |
| 2 | [David Katz](https://superinvestorclub.com/manager/79) | Matrix Asset Advisors | 37472 | $3.0M | 0.25% | 2026-06-30 |
| 3 | [FPA Queens Road](https://superinvestorclub.com/manager/97) | Bragg Financial Advisors | 32069 | $2.6M | 0.07% | 2026-06-30 |
| 4 | [Wally Obermeyer](https://superinvestorclub.com/manager/3283) | Obermeyer Wealth Partners | 3312 | $266,848 | 0.01% | 2026-06-30 |

## Ownership history (quarter-over-quarter)

- 2023-12-31: 2 holders, $457,621 aggregate, 01079888 shares
- 2024-03-31: 1 holders, $221,960 aggregate, 0888 shares
- 2024-06-30: 1 holders, $215,000 aggregate, 0888 shares
- 2024-09-30: 2 holders, $624,501 aggregate, 01378989 shares
- 2024-12-31: 3 holders, $2.6M aggregate, 0719613781332 shares
- 2025-03-31: 3 holders, $2.8M aggregate, 0749720381483 shares
- 2025-06-30: 4 holders, $3.7M aggregate, 0744827602238932 shares
- 2025-09-30: 5 holders, $6.7M aggregate, 08690741039401128828 shares
- 2025-12-31: 4 holders, $4.5M aggregate, 0740450622095828 shares
- 2026-03-31: 4 holders, $7.9M aggregate, 01099781017684828 shares
- 2026-06-30: 4 holders, $9.0M aggregate, 03934837472320693312 shares

## Recent congressional trades (1)

- 2025-01-08: Markwayne Mullin (Republican-OK) sale $15,001 - $50,000

## Recent insider transactions (0)


## Citation

When citing, use: "VANGUARD INDEX FDS (VO) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/VO), aggregating SEC 13F, Form 4, and congressional disclosures."