Vanguard Mega Cap 300 Index ETF

MGC • ARCA

Vanguard Mega Cap 300 Index ETF is an exchange-traded fund on ARCA. As of Q3 2025, 482 institutional investors hold shares in this ETF, with total holdings valued at $4.6B. ENVESTNET ASSET MANAGEMENT INC is the largest holder with a position valued at $420.1M.

Overview

Overview of institutional ownership in MGC as of Q3 2025

All Institutions

Institutions: 482
Value Held: $4.6B
Shares Held: 19.0M
Avg Position: $9.6M
Median Position: $780.5K

Hedge Funds

Hedge Funds: 4
Value Held: $29.5M
Shares Held: 120.7K
Avg Position: $7.4M
Median Position: $1.9M

Biggest Investors

Institutions with the largest positions in MGC as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
ENVESTNET ASSET MANAGEMENT INC Long Only Manager	Christopher Russell Todd CEO	$420.1M 0.12% of portfolio	1.7M shares	Q4 2013 Held for 11y 11m	$341.99B
BANK OF AMERICA CORP /DE/ Institution	Brian T. Moynihan CEO	$383.1M 0.03% of portfolio	1.6M shares	≤ Q2 2013 Held for 12y 5m+	$1.33T
NEW YORK LIFE INVESTMENT MANAGEMENT LLC Long Only Manager	Naim (Nmn) Abou-Jaoude CEO	$173.6M 1.56% of portfolio	711.4K shares	Q2 2020 Held for 5y 5m	$11.1B
V VANTAGEPOINT INVESTMENT ADVISERS LLC Institution	-	$161.2M 1.32% of portfolio	660.4K shares	Q3 2025 Held for 2 months	$12.2B
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$140.9M 0.01% of portfolio	577.1K shares	≤ Q2 2013 Held for 12y 5m+	$1.65T
WELLS FARGO & COMPANY/MN Institution	Charles W. Scharf CEO	$138.9M 0.03% of portfolio	569.0K shares	≤ Q2 2013 Held for 12y 5m+	$488.50B
LEAVELL INVESTMENT MANAGEMENT, INC. RIA/Wealth	Eugene Andrews Grinstead CEO	$122.8M 5.18% of portfolio	501.7K shares	≤ Q2 2013 Held for 12y 5m+	$2.4B
UBS Group AG Institution	Sergio P. Ermotti CEO	$120.5M 0.02% of portfolio	493.8K shares	Q4 2014 Held for 10y 11m	$511.54B
RiverFront Investment Group, LLC Long Only Manager	Peter John Quinn CEO	$117.7M 2.07% of portfolio	482.1K shares	Q4 2024 Held for 11 months	$5.7B
L LPL Financial LLC Institution	-	$117.4M 0.03% of portfolio	481.0K shares	≤ Q2 2013 Held for 12y 5m+	$340.07B

Net Capital Flow

Institutional buying and selling activity for MGC in Q3 2025

Traded: +$797.5M
Buyers: 229
Sellers: 152
Total Bought: +$891.5M
Total Sold: −$94.0M
Avg Position: $9.2M

Biggest Buyers

Institution	Net Bought	Current Position
ENVESTNET ASSET MANAGEMENT INC Long Only Manager	+$209.2M +857.1K shares	$420.1M 1.7M shares
V VANTAGEPOINT INVESTMENT ADVISERS LLC Institution	+$161.2M +660.4K shares	$161.2M 660.4K shares
Procyon Private Wealth Partners, LLC RIA/Wealth	+$111.9M +458.5K shares	$111.9M 458.5K shares
JPMORGAN CHASE & CO Institution	+$44.6M +182.7K shares	$111.2M 455.4K shares
THRIVENT FINANCIAL FOR LUTHERANS Insurance Manager	+$37.3M +152.7K shares	$37.3M 152.7K shares
I Investment Planning Advisors, Inc. Institution	+$33.4M +136.9K shares	$33.4M 136.9K shares
NEW YORK LIFE INVESTMENT MANAGEMENT LLC Long Only Manager	+$32.9M +134.8K shares	$173.6M 711.4K shares
A Ascent Group, LLC Institution	+$25.8M +105.6K shares	$50.6M 207.5K shares
WELLINGTON MANAGEMENT CO LLP Long Only Manager	+$17.0M +69.5K shares	$17.0M 69.5K shares
We Are One Seven, LLC RIA/Wealth	+$13.0M +53.4K shares	$13.0M 53.4K shares

Biggest Sellers

Institution	Net Sold	Current Position
A Apella Capital, LLC Institution	−$9.4M −38.8K shares	$70.0M 288.7K shares
B Buttonwood Financial Group, LLC RIA/Wealth	−$9.3M −37.9K shares	$4.8M 19.7K shares
S Systelligence, LLC Institution	−$7.3M −30.1K shares	$8.9M 36.4K shares
Strategic Blueprint, LLC RIA/Wealth	−$6.9M −28.4K shares	$1.7M 7.0K shares
WELLS FARGO & COMPANY/MN Institution	−$4.5M −18.6K shares	$138.9M 569.0K shares
E Elevation Capital Advisory, LLC RIA/Wealth	−$4.0M −16.6K shares	$2.5M 10.2K shares
MORGAN STANLEY RIA/Wealth	−$3.8M −15.7K shares	$140.9M 577.1K shares
BB&T CORP Institution	−$3.7M −15.1K shares	$42.9M 175.9K shares
L Leo Wealth, LLC Institution	−$3.2M −14.2K shares	Sold Off 0 shares
McClarren Financial Advisors, Inc. RIA/Wealth	−$3.1M −7.2K shares	$4.1M 9.6K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited MGC in Q3 2025

New Positions: 34
New Value: $231.3M
Exited Positions: 22
Exited Value: $10.0M

New Positions

Institution	Position Value
V VANTAGEPOINT INVESTMENT ADVISERS LLC Institution	$161.2M 660.4K shares
I Investment Planning Advisors, Inc. Institution	$33.4M 136.9K shares
WELLINGTON MANAGEMENT CO LLP Long Only Manager	$17.0M 69.5K shares
ENDEAVOR PRIVATE WEALTH, INC. RIA/Wealth	$7.7M 31.6K shares
S Sheridan Capital Management, LLC RIA/Wealth	$1.8M 7.5K shares
Hollow Brook Wealth Management LLC RIA/Wealth	$1.6M 6.7K shares
CONNING INC. Insurance Manager	$1.3M 5.4K shares
FOUNDERS FINANCIAL SECURITIES LLC RIA/Wealth	$1.0M 4.2K shares
BAM Wealth Management, LLC RIA/Wealth	$806.5K 3.3K shares
Summit Financial, LLC RIA/Wealth	$762.3K 3.1K shares

Exited Positions

Institution	Previous Position
L Leo Wealth, LLC Institution	$3.2M 14.2K shares
Gibson Capital, LLC RIA/Wealth	$1.0M 4.6K shares
AlphaStar Capital Management, LLC RIA/Wealth	$967.6K 4.3K shares
Marshall Wace LLP Institution	$905.3K 4.0K shares
Ameritas Advisory Services, LLC RIA/Wealth	$741.1K 3.3K shares
Revisor Wealth Management LLC RIA/Wealth	$575.7K 2.5K shares
SIGNATURE SECURITIES GROUP CORPORATION RIA/Wealth	$516.6K 2.3K shares
Linscomb & Williams, Inc. RIA/Wealth	$472.3K 2.1K shares
CLUNE & ASSOCIATES, LTD. RIA/Wealth	$293.5K 1.3K shares
Alpha Cubed Investments, LLC RIA/Wealth	$289.0K 1.3K shares

Options Activity

Institutions with the largest Call and Put options positions in MGC as of Q3 2025

Call Positions: 2
Call Value: $463.8K
Put Positions: 1
Put Value: -

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$244.1K 10.0 contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$219.7K 9.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	- - contracts

Most Committed Institutions

Institutions with MGC as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
SUMMIT WEALTH & RETIREMENT PLANNING, INC. RIA/Wealth	Christina Faye Zins President	13.01% $52.7M	216.1K shares	Q1 2020 Held for 5y 8m	$405.5M
I Investment Planning Advisors, Inc. Institution	-	10.51% $33.4M	136.9K shares	Q3 2025 Held for 2 months	$318.0M
Financial Services Advisory Inc RIA/Wealth	David Ronald Petersen Founder	8.53% $22.1M	90.7K shares	Q4 2023 Held for 1y 11m	$259.5M
Procyon Private Wealth Partners, LLC RIA/Wealth	Phil Giuseppe Fiore CEO	6.67% $111.9M	458.5K shares	Q3 2025 Held for 2 months	$1.7B
B BancorpSouth Bank Institution	-	6.39% $105.2M	430.9K shares	Q4 2017 Held for 7y 11m	$1.6B
Blackston Financial Advisory Group, LLC RIA/Wealth	Richard Kyle Blackston COO	5.97% $10.0M	40.8K shares	Q3 2023 Held for 2y 2m	$166.9M
W West Wealth Group, LLC RIA/Wealth	Michael Ray Clark Managing Partner	5.54% $23.6M	96.8K shares	Q1 2024 Held for 1y 8m	$426.5M
VSM Wealth Advisory, LLC RIA/Wealth	Robert Frank Mewshaw President	5.46% $17.4M	71.3K shares	Q4 2024 Held for 11 months	$318.3M
Colorado Capital Management, Inc. RIA/Wealth	Steven Lloyd Ellis President	5.41% $12.4M	50.7K shares	Q1 2024 Held for 1y 8m	$229.1M
LEAVELL INVESTMENT MANAGEMENT, INC. RIA/Wealth	Eugene Andrews Grinstead CEO	5.18% $122.8M	501.7K shares	≤ Q2 2013 Held for 12y 5m+	$2.4B

Hedge Fund Spotlight

Discover hedge funds investing in MGC

AQR CAPITAL MANAGEMENT LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerDavid Gary Kabiller

Portfolio Value: $156.17B
Positions: 3,453
Last Reported: Q3 2025

Sector Allocation

Position in Vanguard Mega Cap 300 Index ETF

Market Value: $1.1M
Shares Held: 4.4K
Portfolio Weight: 0.00%
Owned Since: 2024-Q1

Top Holding	Sector	Market Value	Weight
1 Nvidia NVDA	Semiconductors Technology	$4.1B	2.62%
2 Microsoft MSFT	Software - Infrastructure Technology	$3.2B	2.05%
3 Apple AAPL	Consumer Electronics Technology	$2.8B	1.76%