East Coast Asset Management, LLC.

In its 13F for Q3 2024 (holdings as of September 30, 2024, filed November 14, 2024), East Coast Asset Management, LLC. reported 73 stock positions worth $301.2 million. Its top holding was Alphabet Class C (GOOG) at 14.1% of the portfolio, followed by Transdigm (TDG, 12.8%) and Perimeter Solutions (PRM, 9.0%). Compared with Q2 2024, it opened 3 new positions, added to 6 and reduced 34. The biggest buy was Perimeter Solutions (PRM, shares +20%) and the biggest sale Alphabet Class C (GOOG, shares −12%).

Most Recent 13F
Q2 2026
Location
ESSEX, MA
CIK
0001579254
Portfolio Value
$301.2M (Q3 2024)
SEC Filing
0001085146-24-005781 ↗ filed Nov 14, 2024

Holdings Value

0$100.0M$200.0M$300.0M$400.0M Q1 2024: $274.1M Q1 2024 Q2 2024: $275.1M Q2 2024 Q3 2024: $301.2M $301.2M Q3 2024 Q4 2024: $299.3M Q4 2024 Q1 2025: $282.4M Q1 2025 Q2 2025: $301.4M Q2 2025 Q3 2025: $319.2M Q3 2025 Q4 2025: $340.0M Q4 2025 Q1 2026: $303.4M Q1 2026 Q2 2026: $338.6M Q2 2026

Holdings 73 stocks · $301.2M
GOOG Alphabet Inc. Class C 14.07% 253,451 $42.4M Reduce -11.9%
TDG Transdigm Group Inc. 12.84% 27,093 $38.7M Reduce -4.2%
PRM Perimeter Solutions SA 8.99% 2,013,615 $27.1M Add +20.2%
META Meta Platforms Inc. Class A 8.30% 43,651 $25.0M Reduce -1.8%
BN Brookfield Corp. 5.92% 335,677 $17.8M Reduce -0.0%
BRK.B Berkshire Hathaway Inc. Class B 5.53% 36,167 $16.6M Reduce -15.3%
MA Mastercard Inc. Class A 4.27% 26,043 $12.9M Reduce -1.6%
AMZN Amazon.com Inc. 3.81% 61,550 $11.5M Reduce -0.6%
AAPL Apple Inc. 3.38% 43,661 $10.2M Reduce -0.6%
TSLA Tesla Inc. 2.66% 30,571 $8.0M Add +1895.5%
MCO Moody's Corp. 2.56% 16,274 $7.7M Reduce -2.1%
TJX TJX Companies Inc. filed as TJX COS INC NEW 1.97% 50,438 $5.9M Reduce -2.5%
WWD Woodward Inc. 1.76% 30,934 $5.3M Reduce -0.1%
V Visa Inc. Class A 1.57% 17,149 $4.7M Add +0.0%
DE Deere & Co. 1.49% 10,782 $4.5M Reduce -3.3%
SHW The Sherwin-Williams Co. 1.42% 11,173 $4.3M Reduce -0.7%
CHTR Charter Communications Inc. Class A 1.41% 13,066 $4.2M Reduce -2.2%
LPX Louisiana-Pacific Corp. 1.29% 36,047 $3.9M Reduce -1.8%
MKL Markel Group Inc. 1.20% 2,302 $3.6M Reduce -1.5%
MSFT Microsoft Corp. 1.09% 7,643 $3.3M Reduce -8.6%
SCHW Schwab (charles) Corp. 1.09% 50,535 $3.3M Reduce -1.5%
SPY SS SPDR S&P 500 ETF Trust-US 1.01% 5,319 $3.1M No change
WM Waste Management Inc. 0.97% 14,101 $2.9M Reduce -2.5%
UNP Union Pacific Corp. 0.73% 8,877 $2.2M Reduce -0.2%
CL Colgate-Palmolive Co. 0.71% 20,668 $2.1M Reduce -2.4%
BRK.A Berkshire Hathaway Inc. Class A 0.69% 3 $2.1M Reduce -25.0%
ADP Automatic Data Processing 0.62% 6,736 $1.9M Reduce -1.2%
LBRDK Liberty Broadband-C 0.52% 20,332 $1.6M Reduce -2.3%
CR Crane Co. 0.52% 9,865 $1.6M Reduce -4.9%
VOE Vngrd Mrngstr MD-Cap Val ETF 0.46% 8,343 $1.4M Add +0.1%
SYY Sysco Corp. 0.42% 16,198 $1.3M Reduce -3.9%
PAYX Paychex Inc. 0.42% 9,353 $1.3M Reduce -8.2%
LH Labcorp Holdings Inc. 0.34% 4,629 $1.0M Reduce -5.6%
DHR Danaher Corp. 0.34% 3,688 $1.0M No change
JNJ Johnson & Johnson 0.32% 5,974 $968K Reduce -3.6%
GOOGL Alphabet Inc. Class A 0.32% 5,725 $949K No change
BR Broadridge Financial Solutio 0.29% 4,013 $863K No change
CMCSA Comcast Corp. Class A 0.28% 20,126 $841K Reduce -9.0%
OEF iShares S&P 100 ETF 0.25% 2,746 $760K No change
RACE Ferrari NV 0.24% 1,552 $730K No change
AMGN Amgen Inc. 0.21% 1,950 $628K No change
LMT Lockheed Martin Corp. 0.20% 1,047 $612K No change
ADBE Adobe Inc. 0.20% 1,179 $610K No change
IWM iShares Russell 2000 ETF 0.18% 2,482 $548K Reduce -0.8%
PG The Procter & Gamble Co. 0.18% 3,108 $538K No change
SPLV Invesco S&P 500 Low Volatili 0.17% 7,191 $516K No change
AMT American Tower Corp. 0.16% 2,095 $487K No change
IXJ iShares Global Healthcare Et 0.15% 4,471 $439K No change
HD Home Depot Inc. 0.14% 1,040 $421K No change
PEP Pepsico Inc. 0.13% 2,383 $405K No change
EWL iShares MSCI Switzerland ETF 0.13% 7,626 $397K No change
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.13% 1,780 $393K Add +0.2%
AXP American Express Co. 0.13% 1,442 $391K No change
RTX RTX Corp. 0.13% 3,159 $383K Add +0.1%
ELV Elevance Health Inc. 0.13% 730 $380K No change
INTU Intuit Inc. 0.12% 600 $373K No change
MMM 3M Co. 0.12% 2,585 $353K No change
CLX Clorox Company 0.11% 1,965 $320K Reduce -0.5%
RSG Republic Services Inc. 0.10% 1,563 $314K Reduce -9.6%
WMT Walmart Inc. 0.10% 3,608 $291K No change
BSX Boston Scientific Corp. 0.09% 3,304 $277K No change
STLA Stellantis NV 0.09% 18,952 $266K No change
VOO Vanguard S&P 500 ETF 0.09% 500 $264K No change
ACN Accenture PLC Class A 0.09% 737 $261K No change
PFE Pfizer Inc. 0.08% 8,741 $253K No change
DIS The Walt Disney Co. filed as DISNEY WALT CO 0.08% 2,538 $244K No change
JPM JPMorgan Chase & Co. 0.08% 1,156 $244K No change
CARR Carrier Global Corp. 0.08% 2,940 $237K New
TMO Thermo Fisher Scientific Inc. 0.08% 380 $235K No change
VUG Vanguard Mrngstar GR ETF-Sui 0.08% 593 $228K Reduce -4.5%
COST Costco Wholesale Corp. 0.07% 242 $215K No change
VWO Vanguard Ftse Emerging Marke 0.07% 4,337 $208K New
ETN Eaton Corp. PLC 0.07% 617 $204K New

Portfolio Sells Q2 2024 → Q3 2024
GOOG Alphabet Inc. Class C Reduce -11.9% 14.07% −5.11
BRK.B Berkshire Hathaway Inc. Class B Reduce -15.3% 5.53% −0.79
AMZN Amazon.com Inc. Reduce -0.6% 3.81% −0.54
TDG Transdigm Group Inc. Reduce -4.2% 12.84% −0.30
SCHW Schwab (charles) Corp. Reduce -1.5% 1.09% −0.29
MSFT Microsoft Corp. Reduce -8.6% 1.09% −0.27
BRK.A Berkshire Hathaway Inc. Class A Reduce -25.0% 0.69% −0.20
WWD Woodward Inc. Reduce -0.1% 1.76% −0.20
WM Waste Management Inc. Reduce -2.5% 0.97% −0.15
MKL Markel Group Inc. Reduce -1.5% 1.20% −0.14
TJX TJX Companies Inc. Reduce -2.5% 1.97% −0.10
CHTR Charter Communications Inc. Class A Reduce -2.2% 1.41% −0.05
CMCSA Comcast Corp. Class A Reduce -9.0% 0.28% −0.04
CL Colgate-Palmolive Co. Reduce -2.4% 0.71% −0.03
CR Crane Co. Reduce -4.9% 0.52% −0.03
PAYX Paychex Inc. Reduce -8.2% 0.42% −0.02
DE Deere & Co. Reduce -3.3% 1.49% −0.02
LH Labcorp Holdings Inc. Reduce -5.6% 0.34% −0.02
RSG Republic Services Inc. Reduce -9.6% 0.10% −0.02
SYY Sysco Corp. Reduce -3.9% 0.42% −0.02
VUG Vanguard Mrngstar GR ETF-Sui Reduce -4.5% 0.08% −0.01
JNJ Johnson & Johnson Reduce -3.6% 0.32% −0.01
UNP Union Pacific Corp. Reduce -0.2% 0.73% −0.00
IWM iShares Russell 2000 ETF Reduce -0.8% 0.18% −0.00
CLX Clorox Company Reduce -0.5% 0.11% +0.01
AAPL Apple Inc. Reduce -0.6% 3.38% +0.02
MCO Moody's Corp. Reduce -2.1% 2.56% +0.02
MA Mastercard Inc. Class A Reduce -1.6% 4.27% +0.02
ADP Automatic Data Processing Reduce -1.2% 0.62% +0.03
LBRDK Liberty Broadband-C Reduce -2.3% 0.52% +0.11
META Meta Platforms Inc. Class A Reduce -1.8% 8.30% +0.15
LPX Louisiana-Pacific Corp. Reduce -1.8% 1.29% +0.19
SHW The Sherwin-Williams Co. Reduce -0.7% 1.42% +0.20
BN Brookfield Corp. Reduce -0.0% 5.92% +0.85

Portfolio Buys Q2 2024 → Q3 2024
PRM Perimeter Solutions SA Add +20.2% 8.99% +4.22
TSLA Tesla Inc. Add +1895.5% 2.66% +2.55
CARR Carrier Global Corp. New 0.08% +0.08
VWO Vanguard Ftse Emerging Marke New 0.07% +0.07
ETN Eaton Corp. PLC New 0.07% +0.07
IBM Intl Business Machines Corp. Add +0.2% 0.13% +0.02
RTX RTX Corp. Add +0.1% 0.13% +0.01
VOE Vngrd Mrngstr MD-Cap Val ETF Add +0.1% 0.46% +0.01
V Visa Inc. Class A Add +0.0% 1.57% −0.07

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 67$338.6MGOOG, TSLA, PRM, TDG, ECHO
Q1 2026 68$303.4MGOOG, TSLA, PRM, TDG, ECHO
Q4 2025 69$340.0MGOOG, PRM, TSLA, TDG, BRK.B
Q3 2025 68$319.2MGOOG, PRM, TDG, META, TSLA
Q2 2025 69$301.4MGOOG, TDG, META, PRM, TSLA
Q1 2025 69$282.4MGOOG, TDG, META, PRM, BN
Q4 2024 71$299.3MGOOG, TDG, PRM, META, BN
Q3 2024 73$301.2MGOOG, TDG, PRM, META, BN
Q2 2024 70$275.1MGOOG, TDG, META, BRK.B, BN
Q1 2024 69$274.1MGOOG, TDG, META, BRK.B, BN