East Coast Asset Management, LLC. — 13F Holdings & Portfolio
CIK 1579254 · latest 13F-HR filed 2026-08-14
East Coast Asset Management, LLC. manages $338.6M in 13F-reported U.S. long-equity assets across 67 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are GOOG (16.65%), TSLA (12.78%), PRM (11.48%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 4 new positions, exited 5, added to 30, and trimmed 13.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
PO BOX 566
ESSEX, MA 01929
$338.6M
Long-equity book
67
Distinct positions
2026-06-30
Filed 2026-08-14
+4 / −5 / ↑30 / ↓13
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- ALPHABET INC$8.8M +18.4%
- TESLA INC$6.2M +16.6%
- PERIMETER SOLUTIONS INC$5.7M +17.2%
- TRANSDIGM GROUP INC$5.1M +18.8%
- AMAZON COM INC$3.6M +28.9%
Top Trims
- META PLATFORMS INC-$2.6M -32.4%
- TJX COS INC NEW-$540.7K -7.5%
- MICROSOFT CORP-$417.6K -14.1%
- BROADRIDGE FINL SOLUTIONS IN-$260.5K -36.1%
- WASTE MGMT INC DEL-$155.5K -5.1%
New Positions
- SPACE EXPLORATION TECHN CORP$498.1K
- ISHARES TR$226.6K
- VANGUARD INDEX FDS$218.4K
- YUM BRANDS INC$201.9K
Exited Positions
- INTUIT$259.4K
- PFIZER INC$228.6K
- ACCENTURE PLC IRELAND$219.3K
- JPMORGAN CHASE & CO$217.4K
- BOSTON SCIENTIFIC CORP$207.3K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | ALPHABET INC | GOOG | 02079K107 | $56.4M | 16.65% | 159,525 | SH |
| 2 | TESLA INC | TSLA | 88160R101 | $43.3M | 12.78% | 102,906 | SH |
| 3 | PERIMETER SOLUTIONS INC | PRM | 71385M107 | $38.9M | 11.48% | 1,090,264 | SH |
| 4 | TRANSDIGM GROUP INC | TDG | 893641100 | $32.0M | 9.45% | 24,009 | SH |
| 5 | ECHOSTAR CORP | ECHO | 278768106 | $19.3M | 5.71% | 190,609 | SH |
| 6 | AMAZON COM INC | AMZN | 023135106 | $16.0M | 4.72% | 66,992 | SH |
| 7 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $14.5M | 4.28% | 28,980 | SH |
| 8 | WOODWARD INC | WWD | 980745103 | $12.0M | 3.55% | 28,243 | SH |
| 9 | MASTERCARD INCORPORATED | MA | 57636Q104 | $11.2M | 3.32% | 21,879 | SH |
| 10 | APPLE INC | AAPL | 037833100 | $10.7M | 3.16% | 36,936 | SH |
| 11 | TJX COS INC NEW | TJX | 872540109 | $6.7M | 1.96% | 43,911 | SH |
| 12 | DEERE & CO | DE | 244199105 | $6.3M | 1.85% | 9,888 | SH |
| 13 | MOODYS CORP | MCO | 615369105 | $6.0M | 1.78% | 13,295 | SH |
| 14 | META PLATFORMS INC | META | 30303M102 | $5.5M | 1.62% | 9,754 | SH |
| 15 | VISA INC | V | 92826C839 | $5.3M | 1.57% | 15,462 | SH |
| 16 | SCHWAB CHARLES CORP | SCHW | 808513105 | $4.0M | 1.19% | 43,501 | SH |
| 17 | MARKEL GROUP INC | MKL | 570535104 | $3.9M | 1.15% | 2,001 | SH |
| 18 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $3.6M | 1.06% | 4,793 | SH |
| 19 | SHERWIN WILLIAMS CO | SHW | 824348106 | $3.5M | 1.02% | 10,057 | SH |
| 20 | VEEVA SYS INC | VEEV | 922475108 | $3.5M | 1.02% | 19,483 | SH |
| 21 | WASTE MGMT INC DEL | WM | 94106L109 | $2.9M | 0.86% | 13,035 | SH |
| 22 | MICROSOFT CORP | MSFT | 594918104 | $2.5M | 0.75% | 6,804 | SH |
| 23 | LOUISIANA PAC CORP | LPX | 546347105 | $2.3M | 0.69% | 29,748 | SH |
| 24 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $2.2M | 0.66% | 3 | SH |
| 25 | UNION PAC CORP | UNP | 907818108 | $2.2M | 0.64% | 7,969 | SH |
| 26 | ALPHABET INC | GOOGL | 02079K305 | $1.9M | 0.55% | 5,237 | SH |
| 27 | COLGATE PALMOLIVE CO | CL | 194162103 | $1.7M | 0.49% | 18,204 | SH |
| 28 | VANGUARD INDEX FDS | VOE | 922908512 | $1.5M | 0.45% | 7,756 | SH |
| 29 | JOHNSON & JOHNSON | JNJ | 478160104 | $1.3M | 0.38% | 5,075 | SH |
| 30 | AUTOMATIC DATA PROCESSING IN | ADP | 053015103 | $1.3M | 0.37% | 5,596 | SH |
| 31 | SYSCO CORP | SYY | 871829107 | $1.2M | 0.35% | 14,343 | SH |
| 32 | LABCORP HOLDINGS INC | LH | 504922105 | $1.1M | 0.32% | 3,926 | SH |
| 33 | ISHARES TR | OEF | 464287101 | $1.0M | 0.30% | 2,746 | SH |
| 34 | PAYCHEX INC | PAYX | 704326107 | $818.5K | 0.24% | 8,324 | SH |
| 35 | ISHARES TR | IWM | 464287655 | $733.0K | 0.22% | 2,440 | SH |
| 36 | DANAHER CORP DEL | DHR | 235851102 | $681.6K | 0.20% | 3,579 | SH |
| 37 | AMGEN INC | AMGN | 031162100 | $589.5K | 0.17% | 1,628 | SH |
| 38 | RTX CORPORATION | RTX | 75513E101 | $524.8K | 0.15% | 2,766 | SH |
| 39 | INVESCO EXCH TRADED FD TR II | SPLV | 46138E354 | $515.9K | 0.15% | 6,887 | SH |
| 40 | INTERNATIONAL BUSINESS MACHS | IBM | 459200101 | $504.2K | 0.15% | 1,793 | SH |
| 41 | SPACE EXPLORATION TECHN CORP | SPCX | 84615Q103 | $498.1K | 0.15% | 2,915 | SH |
| 42 | AMERICAN EXPRESS CO | AXP | 025816109 | $487.8K | 0.14% | 1,442 | SH |
| 43 | LOCKHEED MARTIN CORP | LMT | 539830109 | $474.8K | 0.14% | 932 | SH |
| 44 | BROADRIDGE FINL SOLUTIONS IN | BR | 11133T103 | $460.6K | 0.14% | 3,363 | SH |
| 45 | PROCTER & GAMBLE CO | PG | 742718109 | $455.7K | 0.13% | 3,108 | SH |
| 46 | ISHARES INC | EWL | 464286749 | $446.3K | 0.13% | 7,101 | SH |
| 47 | 3M CO | MMM | 88579Y101 | $410.9K | 0.12% | 2,538 | SH |
| 48 | ISHARES TR | IXJ | 464287325 | $389.9K | 0.12% | 3,963 | SH |
| 49 | FIDELITY WISE ORIGIN BITCOIN | FBTC | 315948109 | $385.4K | 0.11% | 7,550 | SH |
| 50 | COMCAST CORP NEW | CMCSA | 20030N101 | $370.7K | 0.11% | 15,100 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $338.6M | 67 | 0001579254-26-000004 |
| 2026-03-31 | 2026-05-15 | $303.4M | 68 | 0001579254-26-000003 |
| 2025-12-31 | 2026-02-17 | $340.0M | 69 | 0001579254-26-000002 |
| 2025-09-30 | 2025-11-14 | $319.2M | 68 | 0001579254-25-000004 |