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East Coast Asset Management, LLC.

Q4 2025 13F Holdings

  • Location
    essex, MA
  • Num holdings

    69

  • Value ($000)

    $340,038

  • Date Filed
    02/17/2026
  • Form type
    13F-HR
  • CIK
    0001579254
  • All SEC filings
  • Note
    Holdings aggregated across “other managers” listed in original SEC filing, see here for detailed holdings broken out by other managers
Compare Q4 2025 to
Select Quarter
Issuer Name
Class
CUSIP
VALUE
%
Shares
Principal
Option Type
G
GOOG

ALPHABET INC

CAP STK CL C
02079K107
$61.54M
18 %

196,119

---

PERIMETER SOLUTIONS INC

COMMON STOCK
71385M107
$37.62M
11 %

1,366,380

T
TSLA

TESLA INC

COM
88160R101
$36.69M
11 %

81,595

---

TRANSDIGM GROUP INC

COM
893641100
$31.04M
9 %

23,341

B
BRK.B

BERKSHIRE HATHAWAY INC DEL

CL B NEW
084670702
$15.38M
5 %

30,591

S
SATS

ECHOSTAR CORP

CL A
278768106
$14.92M
4 %

137,244

M
META

META PLATFORMS INC

CL A
30303M102
$14.42M
4 %

21,842

A
AMZN

AMAZON COM INC

COM
023135106
$13.94M
4 %

60,410

M
MA

MASTERCARD INCORPORATED

CL A
57636Q104
$13.27M
4 %

23,242

A
AAPL

APPLE INC

COM
037833100
$10.77M
3 %

39,610

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