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ECAM

East Coast Asset Management Portfolio holdings

AUM $303M
1-Year Est. Return 35.55%
This Fund
S&P 500
This Quarter Est. Return
+16.1%
1 Year Est. Return
+35.55%
3 Year Est. Return
+141.88%
5 Year Est. Return
+152.25%
10 Year Est. Return
+638.36%
AUM
$319M
AUM Growth
+$17.8M
Cap. Flow
-$17.4M
Cap. Flow %
-5.46%
Top 10 Hldgs %
73.97%
Holding
71
New
2
Increased
9
Reduced
30
Closed
3

Top Buys

Rank Stock Value
1
TSLA icon
Tesla
TSLA
+$3.14M
2
FBTC icon
Fidelity Wise Origin Bitcoin Fund
FBTC
+$234K
3
PFE icon
Pfizer
PFE
+$201K
4
CR icon
Crane Co
CR
+$37.7K
5
DE icon
Deere & Co
DE
+$10.4K

Top Sells

Rank Stock Value
1
PRM icon
Perimeter Solutions
PRM
+$9.43M
2
BN icon
Brookfield
BN
+$5.28M
3
GOOG icon
Alphabet (Google) Class C
GOOG
+$2.75M
4
META icon
Meta Platforms (Facebook)
META
+$673K
5
BRK.B icon
Berkshire Hathaway Class B
BRK.B
+$442K

Sector Composition

Rank Sector Weight
1 Communication Services 26.52%
2 Industrials 17.14%
3 Financials 16.6%
4 Consumer Discretionary 16.12%
5 Materials 12.19%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GOOG icon
1
Alphabet (Google) Class C
GOOG
$4.08T
$48.8M 15.28%
200,218
-13,104
-6% -$2.75M
PRM icon
2
Perimeter Solutions
PRM
$6.07B
$35.2M 11.04%
1,573,973
-497,847
-24% -$9.43M
TDG icon
3
TransDigm Group
TDG
$69.9B
$30.8M 9.66%
23,387
-241
-1% -$345K
META icon
4
Meta Platforms (Facebook)
META
$1.37T
$30.7M 9.63%
41,867
-904
-2% -$673K
TSLA icon
5
Tesla
TSLA
$1.22T
$30.4M 9.53%
68,422
+9,043
+15% +$3.14M
BRK.B icon
6
Berkshire Hathaway Class B
BRK.B
$1.1T
$15.9M 4.99%
31,695
-912
-3% -$442K
AMZN icon
7
Amazon
AMZN
$2.53T
$13.5M 4.22%
61,372
-1,523
-2% -$345K
MA icon
8
Mastercard
MA
$510B
$13.3M 4.15%
23,303
-140
-0.6% -$80.4K
AAPL icon
9
Apple
AAPL
$4.9T
$10M 3.14%
39,347
-486
-1% -$110K
WWD icon
10
Woodward
WWD
$21.2B
$7.4M 2.32%
29,284
-185
-0.6% -$46K
MCO icon
11
Moody's
MCO
$83.5B
$6.85M 2.15%
14,369
-567
-4% -$286K
TJX icon
12
TJX Companies
TJX
$176B
$6.76M 2.12%
46,738
-361
-0.8% -$48K
V icon
13
Visa
V
$684B
$5.63M 1.76%
16,490
-191
-1% -$66.1K
DE icon
14
Deere & Co
DE
$162B
$4.69M 1.47%
10,260
+21
+0.2% +$10.4K
SCHW
15
Charles Schwab
SCHW
$181B
$4.29M 1.34%
44,892
-24
-0.1% -$2.28K
MKL icon
16
Markel Group
MKL
$23.4B
$4.03M 1.26%
2,110
-60
-3% -$118K
MSFT icon
17
Microsoft
MSFT
$3.35T
$3.9M 1.22%
7,531
-89
-1% -$45.4K
SHW icon
18
Sherwin-Williams
SHW
$83.7B
$3.66M 1.15%
10,575
-9
-0.1% -$3.17K
SPY icon
19
State Street SPDR S&P 500 ETF Trust
SPY
$784B
$3.47M 1.09%
5,206
– –
WM icon
20
Waste Management
WM
$90.5B
$3.01M 0.94%
13,646
-59
-0.4% -$13.3K
LPX icon
21
Louisiana-Pacific
LPX
$5.02B
$2.92M 0.91%
32,844
-779
-2% -$71.9K
CHTR icon
22
Charter Communications
CHTR
$16.9B
$2.65M 0.83%
9,643
-576
-6% -$174K
BRK.A icon
23
Berkshire Hathaway Class A
BRK.A
$1.1T
$2.26M 0.71%
3
– –
UNP icon
24
Union Pacific
UNP
$172B
$2M 0.63%
8,453
-28
-0.3% -$6.31K
ADP icon
25
Automatic Data Processing
ADP
$105B
$1.93M 0.61%
6,589
-44
-0.7% -$13.2K
1
2 3

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East Coast Asset Management's Q3 2025 Portfolio in Review

As of Q3 2025, East Coast Asset Management held 71 positions worth $319M, up 5.9% from $301M the previous quarter. Its ten largest holdings account for 74% of the portfolio.

East Coast Asset Management withdrew a net $17.4M in Q3 2025, closing 3 positions and reducing 30 holdings. Its most notable exit was Brookfield, an estimated $5.28M position sold in full.

By sector, the portfolio is most concentrated in Communication Services at 27% of assets, up from 25% a quarter earlier, followed by Industrials and Financials.

Against the trend, East Coast Asset Management opened a new position in Fidelity Wise Origin Bitcoin Fund worth $234K.

  • East Coast Asset Management's largest Q3 2025 buy was Fidelity Wise Origin Bitcoin Fund: 2,345 shares worth $234K.
  • East Coast Asset Management added most to Tesla in Q3 2025, an estimated $3.14M increase.
  • East Coast Asset Management's biggest Q3 2025 reduction was Perimeter Solutions, cutting an estimated $9.43M.
  • East Coast Asset Management fully exited Brookfield in Q3 2025, selling an estimated $5.28M.
  • East Coast Asset Management's ten largest holdings make up 74% of its $319M portfolio in Q3 2025.
  • East Coast Asset Management opened 2 new positions and closed 3 in Q3 2025.
  • East Coast Asset Management's portfolio value rose 5.9% quarter-over-quarter to $319M.

Based on East Coast Asset Management's 13F filing for Q3 2025, filed 14 Nov 2025.