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MGC · VANGUARD MEGA CAP INDEX FUND ETF

Alerts for MGC
$282.81 -1.16 (-0.41%) 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: 4
Total Value: $11,378,355
Total Shares: 41,583

Institutional Ownership Trend

18 quarters

Holder Concentration

Across 4 13F filers · Δ vs Mar 31, 2026
Top Holder
54.9%
Sep 2021 → Jun 2026 · range 11.8% – 100.0%
−43.6 pts
Top 5
100.0%
Sep 2021 → Jun 2026 · range 27.5% – 100.0%
0.0 pts
Top 10
100.0%
Sep 2021 → Jun 2026 · range 44.1% – 100.0%
0.0 pts
HHI
4,341
Sep 2021 → Jun 2026 · range 321 – 10,000
Highly concentrated−5,369

Quarterly Activity

vs Mar 31, 2026
New
2
Increased
0
Decreased
2
Sold Out
0
Unchanged
0
Holder count: +2
Institutional value: +217.6%
Shares held: +174.4%

Top Buyers

vs Mar 31, 2026
No qualifying movers this quarter.

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

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

Top Sold-Out Positions

vs Mar 31, 2026
No fully closed positions this quarter.
Showing 5 of 5
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Holder Value (USD) % of 13F Shares Open