Main Street Research 13F annual report

Main Street Research is an investment fund managing more than $1.52 trillion ran by Natalie Mcmahon. There are currently 98 companies in Mrs. Mcmahon’s portfolio. The largest investments include NVIDIA Corp and Apple Inc, together worth $171 billion.

$1.52 trillion Assets Under Management (AUM)

As of 22nd July 2024, Main Street Research’s top holding is 763,993 shares of NVIDIA Corp currently worth over $94.4 billion and making up 6.2% of the portfolio value. Relative to the number of outstanding shares of NVIDIA Corp, Main Street Research owns more than approximately 0.1% of the company. In addition, the fund holds 364,782 shares of Apple Inc worth $76.8 billion, whose value grew 17.0% in the past six months. The third-largest holding is Novo-nordisk A S worth $65.8 billion and the next is Procter And Gamble Co worth $60.5 billion, with 367,144 shares owned.

Currently, Main Street Research's portfolio is worth at least $1.52 trillion. The total portfolio value may be much higher due to cash assets that are not publicly disclosed such as fixed income, real estate, or cash equivalents.

Careers at Main Street Research

The Main Street Research office and employees reside in Sausalito, California. According to the last 13-F report filed with the SEC, Natalie Mcmahon serves as the Chief Compliance Officer at Main Street Research.

Recent trades

In the most recent 13F filing, Main Street Research revealed that it had opened a new position in Taiwan Semiconductor Mfg Ltd and bought 165,995 shares worth $28.9 billion.

The investment fund also strengthened its position in NVIDIA Corp by buying 688,929 additional shares. This makes their stake in NVIDIA Corp total 763,993 shares worth $94.4 billion. NVIDIA Corp dropped approximately 0.1% in the past year.

On the other hand, there are companies that Main Street Research is getting rid of from its portfolio. Main Street Research closed its position in Ishares Tr on 29th July 2024. It sold the previously owned 194,896 shares for $18.5 billion. Natalie Mcmahon also disclosed a decreased stake in Novo-nordisk A S by approximately 0.1%. This leaves the value of the investment at $65.8 billion and 461,087 shares.

One of the largest hedge funds

The two most similar investment funds to Main Street Research are Advocates Investment Management and Gw Henssler & Associates Ltd. They manage $1.52 trillion and $1.51 trillion respectively.


Natalie Mcmahon investment strategy

Main Street Research’s portfolio is diversified across 10 sectors. Currently, their heaviest sector is Technology — making up 27.2% of the total portfolio value. The fund focuses on investments in the United States as 58.2% of the portfolio companies are based in the United States.

The majority of the companies in the fund’s portfolio are large-cap stocks. Stocks with a size of more than $10 billion in market cap make up 61% of the total holdings value. On the other hand, small-cap stocks make up only 2.0% of the portfolio. The average market cap of the portfolio companies is close to $232 billion.

The complete list of Main Street Research trades based on 13F SEC filings

These positions were updated on July 29th based on the fund’s latest 13F filing. Quickly find out what the most recently closed or increased positions are.

Security Shares Owned Value Allocation
NVIDIA Corp
917.79%
763,993
$94,383,688,000 6.23%
Apple Inc
5.26%
364,782
$76,830,391,000 5.07%
Novo-nordisk A S
0.26%
461,087
$65,815,558,000 4.34%
Procter And Gamble Co
4.83%
367,144
$60,549,457,000 3.99%
Mckesson Corporation
0.13%
99,950
$58,437,109,000 3.86%
Amazon.com Inc.
2.82%
293,198
$56,660,514,000 3.74%
Microsoft Corporation
2.96%
122,701
$54,841,179,000 3.62%
Alphabet Inc
3.20%
288,309
$52,538,476,000 3.47%
Costco Whsl Corp New
3.34%
57,362
$48,756,786,000 3.22%
Meta Platforms Inc
3.49%
95,321
$48,062,530,000 3.17%
Berkshire Hathaway Inc.
2.64%
106,741
$47,705,078,000 3.15%
Visa Inc
3.50%
160,228
$42,054,967,000 2.77%
JPMorgan Chase & Co.
5.56%
204,552
$41,372,759,000 2.73%
Broadcom Inc
2.45%
24,166
$38,799,590,000 2.56%
Asml Holding N V
4.37%
36,975
$37,815,442,000 2.49%
Applied Matls Inc
3.02%
159,783
$37,707,300,000 2.49%
Advanced Micro Devices Inc.
0.00%
220,613
$35,785,635,000 2.36%
Intuitive Surgical Inc
3.19%
76,319
$33,950,507,000 2.24%
Ishares Tr
47.00%
163,004
$33,646,492,000 2.22%
Ingersoll Rand Inc.
2.96%
350,312
$31,822,323,000 2.10%
Booking Holdings Inc
3.39%
7,837
$31,046,323,000 2.05%
Caterpillar Inc.
3.11%
92,451
$30,795,488,000 2.03%
T-Mobile US Inc
3.46%
170,971
$30,121,635,000 1.99%
Schwab Charles Corp
2.76%
402,157
$29,634,924,000 1.95%
Chubb Limited
3.77%
113,820
$29,136,882,000 1.92%
Taiwan Semiconductor Mfg Ltd
Opened
165,995
$28,940,276,000 1.91%
General Dynamics Corp.
3.39%
97,664
$28,336,305,000 1.87%
Oracle Corp.
2.25%
200,237
$28,273,464,000 1.87%
Linde Plc.
5.70%
64,032
$28,097,901,000 1.85%
Icici Bank Limited
4.45%
927,727
$26,727,815,000 1.76%
Intuit Inc
4.74%
40,420
$26,564,428,000 1.75%
Constellation Energy Corp
Opened
132,274
$26,490,512,000 1.75%
Exxon Mobil Corp.
4.50%
229,054
$26,368,736,000 1.74%
Parker-Hannifin Corp.
4.87%
51,463
$26,030,589,000 1.72%
Regions Financial Corp.
0.68%
1,275,237
$25,863,594,000 1.71%
Adobe Inc
1.67%
45,693
$25,384,289,000 1.67%
TotalEnergies SE
3.78%
334,557
$22,591,927,000 1.49%
Ishares Tr
Closed
194,896
$18,542,139,000
Mcdonalds Corp
2.72%
20,115
$5,125,993,000 0.34%
Fair Isaac Corp.
No change
2,151
$3,202,108,000 0.21%
Eli Lilly & Co
0.09%
3,278
$2,968,080,000 0.20%
Tesla Inc
1.39%
13,908
$2,752,115,000 0.18%
Palo Alto Networks Inc
92.89%
6,896
$2,337,813,000 0.15%
Ishares Inc
3.15%
14,490
$2,137,130,000 0.14%
Spdr S&p 500 Etf Tr
20.28%
3,577
$1,954,186,000 0.13%
Chevron Corp.
0.45%
10,946
$1,712,237,000 0.11%
Wells Fargo Co New
7.18%
28,557
$1,695,979,000 0.11%
Abbvie Inc
2.62%
9,722
$1,667,490,000 0.11%
Johnson & Johnson
5.97%
11,056
$1,615,891,000 0.11%
Clorox Co.
2.12%
9,328
$1,272,992,000 0.08%
Stryker Corp.
Opened
3,085
$1,052,186,000 0.07%
Accenture Plc Ireland
9.42%
2,962
$898,700,000 0.06%
Thermo Fisher Scientific Inc.
3.12%
1,555
$860,522,000 0.06%
Bank America Corp
7.20%
20,153
$801,491,000 0.05%
Walmart Inc
11.82%
11,315
$766,161,000 0.05%
Automatic Data Processing In
3.06%
3,172
$761,579,000 0.05%
Bristol-Myers Squibb Co.
5.30%
17,632
$732,245,000 0.05%
Merck & Co Inc
5.73%
5,775
$719,427,000 0.05%
Colgate-Palmolive Co.
1.46%
6,939
$673,361,000 0.04%
Snap Inc
Closed
55,630
$638,632,000
Autodesk Inc.
6.77%
2,519
$623,327,000 0.04%
Boston Scientific Corp.
2.30%
7,576
$583,428,000 0.04%
Vanguard Index Fds
2.97%
972
$487,860,000 0.03%
Cisco Sys Inc
35.46%
10,001
$475,129,000 0.03%
Salesforce Inc
98.30%
1,774
$456,095,000 0.03%
Xylem Inc
No change
3,250
$440,798,000 0.03%
Starbucks Corp.
Closed
4,751
$434,211,000
Ulta Beauty Inc
Closed
806
$421,441,000
Pepsico Inc
2.54%
2,491
$410,841,000 0.03%
Comcast Corp New
14.08%
10,438
$408,752,000 0.03%
RTX Corp
4.11%
3,976
$399,171,000 0.03%
Home Depot, Inc.
98.40%
1,139
$392,089,000 0.03%
Norfolk Southn Corp
0.39%
1,804
$387,301,000 0.03%
Smucker J M Co
No change
3,539
$385,893,000 0.03%
NetEase Inc
No change
4,000
$382,320,000 0.03%
Citigroup Inc
31.51%
5,888
$373,652,000 0.02%
Texas Instrs Inc
16.19%
1,853
$360,464,000 0.02%
Abbott Labs
2.09%
3,364
$349,553,000 0.02%
Spdr Dow Jones Indl Average
10.56%
796
$311,884,000 0.02%
Micron Technology Inc.
6.36%
2,328
$306,202,000 0.02%
Veeva Sys Inc
No change
1,600
$292,816,000 0.02%
Delta Air Lines, Inc.
15.19%
6,155
$291,993,000 0.02%
Vanguard Index Fds
Opened
693
$259,564,000 0.02%
Curtiss-Wright Corp.
No change
940
$254,919,000 0.02%
Cigna Group (The)
11.58%
756
$249,911,000 0.02%
Schwab Strategic Tr
6.59%
3,800
$244,941,000 0.02%
Entegris Inc
No change
1,803
$244,126,000 0.02%
Lam Research Corp.
6.22%
226
$241,108,000 0.02%
International Business Machs
0.88%
1,378
$238,381,000 0.02%
Disney Walt Co
Closed
1,933
$236,503,000
Resmed Inc.
0.67%
1,208
$231,235,000 0.02%
AT&T Inc.
0.91%
12,020
$229,702,000 0.02%
Capital One Finl Corp
Closed
1,519
$226,118,000
Coca-Cola Co
2.19%
3,460
$221,918,000 0.01%
Deere & Co.
Closed
526
$216,822,000
Intel Corp.
No change
7,000
$216,790,000 0.01%
Waste Mgmt Inc Del
5.53%
1,012
$215,889,000 0.01%
Aon plc.
12.20%
720
$211,378,000 0.01%
Nike, Inc.
7.33%
2,767
$209,607,000 0.01%
Mastercard Incorporated
16.43%
468
$206,655,000 0.01%
Edwards Lifesciences Corp
0.59%
2,213
$204,415,000 0.01%
Vanguard Specialized Funds
No change
1,099
$201,842,000 0.01%
Sysco Corp.
Closed
2,475
$200,921,000
Local Bounti Corp
No change
46,394
$129,439,000 0.01%
Banco Santander S.A.
No change
17,739
$82,132,000 0.01%
Better Home & Finance Holdin
No change
29,373
$13,482,000 0.00%
No transactions found
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