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VO · VANGUARD MID-CAP INDEX FUND ETF

Alerts for VO
$82.28 -0.17 (-0.21%) At close · Sep 4

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 14
Total Value: $229,165,890
Total Shares: 2,844,308

Institutional Ownership Trend

21 quarters

Holder Concentration

Across 14 13F filers · Δ vs Mar 31, 2026
Top Holder
76.7%
Jun 2022 → Jun 2026 · range 15.6% – 100.0%
+43.8 pts
Top 5
96.1%
Jun 2022 → Jun 2026 · range 42.1% – 100.0%
−2.0 pts
Top 10
99.5%
Jun 2022 → Jun 2026 · range 55.9% – 100.0%
−0.5 pts
HHI
6,034
Jun 2022 → Jun 2026 · range 499 – 10,000
Highly concentrated+3,470

Quarterly Activity

vs Mar 31, 2026
New
11
Increased
3
Decreased
0
Sold Out
4
Unchanged
0
Holder count: +7
Institutional value: +3058.5%
Shares held: +2714.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
No qualifying movers this quarter.

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 16 of 16
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Holder Value (USD) % of 13F Shares Open