Portfolio Value

$0.54B

Total Holdings

1-Year Return

+18.3%

About Broad Run and BROAD RUN INVESTMENT MANAGEMENT, LLC

Broad Run is the portfolio manager at BROAD RUN INVESTMENT MANAGEMENT, LLC, one of the closely tracked institutional investors in our database. Every quarter, institutional investment managers with over $100 million in assets under management are required to file a 13F report with the SEC, disclosing their long equity positions. These filings give retail investors a rare window into how professional money managers are allocating capital.

As of March 2026, Broad Run's 13F portfolio contains 20 positions with a disclosed market value of approximately $0.54 billion. This analysis covers their top holdings, recent portfolio changes, and key investment themes.

Over the past year, Broad Run's portfolio has delivered a +18.3% return, significantly outperforming the broader market.

Broad Run's Top 10 Holdings — March 2026

The following table shows Broad Run's largest disclosed stock positions ranked by portfolio weight as reported in the most recent 13F filing. These represent the highest-conviction bets in the portfolio:

#	Company	Ticker	Portfolio Weight	Market Value	Performance
1	AST SPACEMOBILE INC	ASTS	2120.14%	$114.2M	+48.0%
2	BROOKFIELD CORP ADDED	BN	1035.43%	$55.8M	+0.4%
3	MARKEL CORP	MKL	819.39%	$44.1M	+12.5%
4	APPLIED MATLS INC	AMAT	749.79%	$40.4M	+25.5%
5	AON PLC	AON	698.38%	$37.6M	-1.0%
6	OREILLY AUTOMOTIVE INC	ORLY	675.44%	$36.4M	-15.4%
7	ALPHABET INC	GOOG	395.78%	$21.3M	+28.8%
8	BROOKFIELD ASSET MANAGMT LTD	BAM	392.44%	$21.1M	-8.0%
9	NVR INC	NVR	376.92%	$20.3M	-9.2%
10	AMERICAN TOWER CORP NEW	AMT	358.25%	$19.3M	-8.7%

Data sourced from SEC 13F filings. Holdings reflect disclosed long equity positions. Options and short positions may not be reflected.

Portfolio Strategy & Concentration Analysis

Broad Run's investment approach reflects a highly concentrated portfolio strategy. The top position, AST SPACEMOBILE INC (ASTS), represents 2120.1% of the total portfolio, while the top 5 holdings collectively account for 5423.1% of disclosed assets.

The portfolio saw no new positions this period, suggesting Broad Run is maintaining existing conviction levels and managing existing holdings rather than initiating new bets.

Additionally, Broad Run increased stakes in 2 existing positions, a sign of growing conviction in those holdings.

Best Performing Holdings in Broad Run's Portfolio

Based on available performance data, the following positions have been the strongest contributors to Broad Run's portfolio returns:

ASTS

AST SPACEMOBILE INC

+48.0%

GOOG

ALPHABET INC

+28.8%

AMAT

APPLIED MATLS INC

+25.5%

DHR

DANAHER CORPORATION

+15.5%

MKL

MARKEL CORP

+12.5%

Understanding Broad Run's 13F Filing

A 13F filing is a quarterly disclosure required by the SEC for institutional investment managers that exercise discretion over $100 million or more in qualifying securities. These filings must be submitted within 45 days of the end of each calendar quarter.

Important caveats about 13F data:

Data is delayed by up to 45 days from the end of the quarter
Only long equity positions are disclosed — short positions are not required
Options positions are disclosed separately and may indicate hedging strategies
The portfolio may have changed significantly since the filing date
Not all positions need to be disclosed (some confidentiality provisions exist)

Despite these limitations, 13F filings remain one of the best public sources of information on how professional investors are positioning their portfolios. Use this data as one input among many, alongside your own research and risk tolerance.

How Retail Investors Can Use This Information

Following institutional 13F filings like Broad Run's can provide valuable investment insights — but it's important to use this information correctly:

Identify high-conviction ideas: Large positions and new entries signal where managers have the strongest conviction.
Spot emerging themes: Cross-portfolio analysis reveals sector rotations and macro themes playing out across institutional money.
Validate your own research: If an investor you respect owns a stock you're analyzing, that can reinforce your thesis.
Track changes over time: Watching a manager increase or decrease positions over multiple quarters shows conviction trends.
Don't blindly copy trades: Remember that institutional investors have different time horizons, risk tolerances, and information than retail investors.

You can track Broad Run's complete portfolio in real-time on Insider Edges, including historical holdings, sector breakdown, and performance data.

Other Top Investors to Follow

If you track Broad Run's portfolio, you may also be interested in following these other closely watched institutional investors:

Michael Burry Warren Buffett Ray Dalio Cathie Wood Bill Ackman

Track Broad Run's Portfolio in Real-Time

Get notified when new 13F filings drop, access the complete holdings breakdown, and track portfolio changes over time with Insider Edges.

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Broad Run Portfolio March 2026 - Top Holdings & 13F Analysis

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