Who owns Vanguard Institutional Index Fund Institutional Plus Shares?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of VIIIX from SEC Form 13F filings across 1 reporting managers. All positions are from one synchronized reporting period — 2018-09-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2018-09-30 reporting period, 1 institutions disclosed 26,562 shares of Vanguard Institutional Index Fund Institutional Plus Shares worth $0; the largest disclosed holder is Vantage Investment Advisors, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
1
13F holders
$0
value, 2026 filers
26,562
shares disclosed
0
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2018-09-30 · % of fund = share of the manager's own book · % of co. = share of VIIIX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Vantage Investment Advisors, LLC | 26,562 | $7.1M | 1.5% | — | — |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.