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EAST COAST ASSET MANAGEMENT, LLC.

AUM: $615.69 M
13-F Portfolio Value: $319.18 M
Last 13-F Filed: Q3 2025
Concentration in top 10: 73.96%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
GOOGALPHABET INC15.28%200,218$48,763,181-13,104-6.14%$243.5513F
PRMPERIMETER SOLUTIONS INC11.04%1,573,973$35,241,255-497,847-24.03%$22.3913F
TDGTRANSDIGM GROUP INC9.66%23,387$30,825,141-241-1.02%$1318.0513F
METAMETA PLATFORMS INC9.63%41,867$30,746,147-904-2.11%$734.3813F
BRKBBERKSHIRE HATHAWAY INC DEL4.99%31,695$15,934,501-912-2.8%$502.7413F
AMZNAMAZON COM INC4.22%61,372$13,475,509-1,523-2.42%$219.5713F
MAMASTERCARD INCORPORATED4.15%23,303$13,254,824-140-0.6%$568.813F
AAPLAPPLE INC3.14%39,347$10,018,959-486-1.22%$254.6313F
WWDWOODWARD INC2.32%29,284$7,400,376-185-0.63%$252.7113F
MCOMOODYS CORP2.15%14,369$6,846,545-567-3.8%$476.4813F
TJXTJX COS INC NEW2.12%46,738$6,755,538-361-0.77%$144.5413F
VVISA INC1.76%16,490$5,629,385-191-1.15%$341.3813F
SCHWSCHWAB CHARLES CORP1.34%44,892$4,285,871-24-0.05%$95.4713F
MKLMARKEL GROUP INC1.26%2,110$4,032,970-60-2.76%$1911.3613F
MSFTMICROSOFT CORP1.22%7,531$3,900,568-89-1.17%$517.9313F
SHWSHERWIN WILLIAMS CO1.15%10,575$3,661,579-9-0.09%$346.2513F
WMWASTE MGMT INC DEL0.94%13,646$3,013,471-59-0.43%$220.8313F
LPXLOUISIANA PAC CORP0.91%32,844$2,917,878-779-2.32%$88.8413F
CHTRCHARTER COMMUNICATIONS INC N0.83%9,643$2,652,819-576-5.64%$275.113F
UNPUNION PAC CORP0.63%8,453$1,997,979-28-0.33%$236.3613F
ADPAUTOMATIC DATA PROCESSING IN0.61%6,589$1,933,868-44-0.66%$293.513F
GOOGLALPHABET INC0.41%5,385$1,309,094-65-1.19%$243.113F
SYYSYSCO CORP0.4%15,566$1,281,710-58-0.37%$82.3413F
LHLABCORP HOLDINGS INC0.39%4,312$1,237,719-4-0.09%$287.0413F
JNJJOHNSON & JOHNSON0.32%5,589$1,036,220-15-0.27%$185.413F
IWMISHARES TR0.19%2,459$594,884-23-0.93%$241.9213F
IXJISHARES TR0.12%4,193$371,613-278-6.22%$88.6313F
LBRDKLIBERTY BROADBAND CORP0.1%4,867$309,249-870-15.16%$63.5413F
WMTWALMART INC0.09%2,731$281,430-607-18.18%$103.0513F
JPMJPMORGAN CHASE & CO.0.08%843$265,907-257-23.36%$315.4313F