East Coast Asset Management, LLC.

CIK: 0001579254SEC EDGAR →

Portfolio Value

$340.0B

Holdings

69

As of

Q4 2025

New Positions

2

Closed Positions

3

Portfolio Value History

Top 10 Holdings

RankStockSharesValue% of Portfolio
1

ALPHABET INC

196,119$61.5B
18.10%
2

PERIMETER SOLUTIONS INC

1,366,380$37.6B
11.06%
3

TESLA INC

81,595$36.7B
10.79%
4

TRANSDIGM GROUP INC

23,341$31.0B
9.13%
5

BERKSHIRE HATHAWAY INC DEL

30,591$15.4B
4.52%
6

ECHOSTAR CORP

137,244$14.9B
4.39%
7

META PLATFORMS INC

21,842$14.4B
4.24%
8

AMAZON COM INC

60,410$13.9B
4.10%
9

MASTERCARD INCORPORATED

23,242$13.3B
3.90%
10

APPLE INC

39,610$10.8B
3.17%

Quarterly Changes

Top Buys

SATSNEW
$14.9B
TSLA↑ Increased
$6.3B
AAPL↑ Increased
$749.0M
GOOGL↑ Increased
$379.9M
FBTC↑ Increased
$340.9M

Top Sells

META↓ Decreased
$16.3B
GOOG↓ Decreased
$12.8B
CHTRCLOSED
$2.7B
PRM↓ Decreased
$2.4B
WWD↓ Decreased
$1.4B

New Positions (4)

$14.9B · 137K shares
$320.0M · 5K shares
$296.0M · 1K shares
$220.0M · 380 shares

Closed Positions (3)

$2.7B · 10K shares
$309.2M · 5K shares
$230.9M · 617 shares

Sector Breakdown

Sector# HoldingsValue%
Communication Services5$78.3B23.0%
Consumer Cyclical5$58.2B17.1%
Unknown3$48.7B14.3%
Financial Services20$45.7B13.4%
Basic Materials3$43.6B12.8%
Technology8$32.3B9.5%
Industrials11$24.7B7.3%
Healthcare8$4.5B1.3%
Consumer Defensive5$3.7B1.1%
Real Estate1$220.0M0.1%