MGK · VANGUARD MEGA CAP GROWTH INDEX FUND ETF
$90.23
-0.44 (-0.49%)
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: 7
Total Value: $75,132,102
Total Shares: 854,648
Institutional Ownership Trend
16 quarters
Holder Concentration
Across 7 13F filers · Δ vs Mar 31, 2026Top Holder
87.0%
−0.1 pts
Top 5
99.7%
−0.3 pts
Top 10
100.0%
0.0 pts
HHI
7,650
Highly concentrated−13
Quarterly Activity
vs Mar 31, 2026
New
4
Increased
3
Decreased
0
Sold Out
1
Unchanged
0
Holder count:
+3
Institutional value:
+6559.1%
Shares held:
+5466.7%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Small Cornerstone Financial Management LLC | +52,975 | 66,353 | |
| Small Range Advisory, LLC | +3,677 | 4,379 | |
| Small TUCKER ASSET MANAGEMENT LLC | +1,087 | 1,301 |
Top Sellers
vs Mar 31, 2026No qualifying movers this quarter.
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega CITADEL ADVISORS LLC | 743,809 | $65,388,249 | |
| Large Corient Private Wealth LLC | 32,846 | $2,887,491 | |
| Mid ANCHOR CAPITAL ADVISORS LLC | 5,000 | $439,550 | |
| Mid Parkside Financial Bank & Trust | 960 | $84,393 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Large M&T Bank Corp | 1,059 | $77,823 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega CITADEL ADVISORS LLC MGK | $59,497,488 | 79.19% | 676,800 | Call | 2026-09-02 | |
| Small Cornerstone Financial Management LLC MGK | $5,833,092 | 7.76% | 66,353 | Shares | 2026-08-28 | |
| Mega CITADEL ADVISORS LLC MGK | $5,213,063 | 6.94% | 59,300 | Put | 2026-09-02 | |
| Large Corient Private Wealth LLC MGK | $2,887,491 | 3.84% | 32,846 | Shares | 2026-08-27 | |
| Mega CITADEL ADVISORS LLC MGK | $677,698 | 0.90% | 7,709 | Shares | 2026-09-02 | |
| Mid ANCHOR CAPITAL ADVISORS LLC MGK | $439,550 | 0.59% | 5,000 | Shares | 2026-09-03 | |
| Small Range Advisory, LLC MGK | $384,957 | 0.51% | 4,379 | Shares | 2026-09-02 | |
| Small TUCKER ASSET MANAGEMENT LLC MGK | $114,370 | 0.15% | 1,301 | Shares | 2026-08-27 | |
| Mid Parkside Financial Bank & Trust Bank MGK | $84,393 | 0.11% | 960 | Shares | 2026-09-04 |