Barton Investment Management — 13F Holdings & Portfolio
CIK 1387818 · latest 13F-HR filed 2026-07-20
Barton Investment Management manages $738.2M in 13F-reported U.S. long-equity assets across 60 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are SHOP (24.45%), NFLX (22.09%), AMZN (15.72%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 7 new positions, exited 1, added to 27, and trimmed 15.
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.
100 FRONT STREET, SUITE 980
WEST CONSHOHOCKEN, PA 19428
$738.2M
Long-equity book
60
Distinct positions
2026-06-30
Filed 2026-07-20
+7 / −1 / ↑27 / ↓15
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- AMAZON COM INC$12.5M +12.0%
- OKTA INC$11.4M +63.9%
- GLOBAL E ONLINE LTD$4.3M +12.7%
- GITLAB INC$2.7M +22.1%
- QUALCOMM INC$2.3M +48.4%
Top Trims
- NETFLIX INC.-$62.2M -27.6%
- SHOPIFY INC-$9.7M -5.1%
- BLACKLINE INC-$2.3M -39.8%
- GFL ENVIRONMENTAL INC-$2.2M -12.6%
- KLAVIYO INC-$1.5M -7.1%
New Positions
- INTEL CORP$540.4K
- ADVANCED MICRO DEVICES INC$386.3K
- DELL TECHNOLOGIES INC$377.5K
- ASML HLDG NV$298.4K
- TWILIO INC$271.3K
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 | SHOPIFY INC | SHOP | 82509L107 | $180.5M | 24.45% | 1,580,601 | SH |
| 2 | NETFLIX INC. | NFLX | 64110L106 | $163.1M | 22.09% | 2,283,655 | SH |
| 3 | AMAZON COM INC | AMZN | 023135106 | $116.0M | 15.72% | 486,832 | SH |
| 4 | GLOBAL E ONLINE LTD | GLBE | M5216V106 | $37.8M | 5.13% | 1,089,334 | SH |
| 5 | EQUINIX INC | EQIX | 29444U700 | $33.3M | 4.50% | 31,901 | SH |
| 6 | OKTA INC | OKTA | 679295105 | $29.2M | 3.96% | 214,259 | SH |
| 7 | KLAVIYO INC | KVYO | 49845K101 | $19.0M | 2.57% | 1,256,608 | SH |
| 8 | BLUE OWL CAPITAL INC | OWL | 09581B103 | $18.4M | 2.50% | 2,106,253 | SH |
| 9 | GFL ENVIRONMENTAL INC | GFL | 36168Q104 | $15.3M | 2.07% | 415,541 | SH |
| 10 | GITLAB INC | GTLB | 37637K108 | $14.7M | 1.99% | 480,456 | SH |
| 11 | AMERICAN TOWER CORP | AMT | 03027X100 | $12.6M | 1.71% | 77,038 | SH |
| 12 | MICROSOFT CORP | MSFT | 594918104 | $9.1M | 1.23% | 24,416 | SH |
| 13 | ELECTRONIC ARTS INC | EA | 285512109 | $9.0M | 1.21% | 43,695 | SH |
| 14 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $7.5M | 1.01% | 10 | SH |
| 15 | APPLE INC | AAPL | 037833100 | $7.2M | 0.97% | 24,862 | SH |
| 16 | QUALCOMM INC | QCOM | 747525103 | $7.0M | 0.95% | 38,057 | SH |
| 17 | ALPHABET INC | GOOGL | 02079K305 | $6.9M | 0.93% | 19,268 | SH |
| 18 | BERKSHIRE HATHAWAY CL B | BRK.B | 084670207 | $5.1M | 0.70% | 10,255 | SH |
| 19 | PAYPAL HLDGS INC | PYPL | 70450Y103 | $4.3M | 0.58% | 99,100 | SH |
| 20 | VANGUARD INDEX FDS | VTI | 922908769 | $3.9M | 0.53% | 10,617 | SH |
| 21 | ALPHABET INC | GOOG | 02079K107 | $3.8M | 0.51% | 10,635 | SH |
| 22 | JOHNSON & JOHNSON | JNJ | 478160104 | $3.6M | 0.49% | 14,163 | SH |
| 23 | BLACKLINE INC | BL | 09239B109 | $3.5M | 0.48% | 125,977 | SH |
| 24 | SYMBOTIC INC | SYM | 87151X101 | $2.4M | 0.33% | 53,460 | SH |
| 25 | INVESCO EXCH TRADED FD TR II | TBLL | 46138G888 | $2.1M | 0.28% | 19,480 | SH |
| 26 | ABBVIE INC | ABBV | 00287Y109 | $1.9M | 0.26% | 7,578 | SH |
| 27 | ROYALTY PHARMA PLC | RPRX | G7709Q104 | $1.7M | 0.23% | 30,046 | SH |
| 28 | PRICE T ROWE GROUP INC | TROW | 74144T108 | $1.6M | 0.22% | 14,040 | SH |
| 29 | VANGUARD SCOTTSDALE FDS | VGSH | 92206C102 | $1.5M | 0.20% | 25,934 | SH |
| 30 | EXXON MOBIL CORP | XOM | 30231G102 | $1.1M | 0.15% | 8,105 | SH |
| 31 | DOORDASH INC | DASH | 25809K105 | $1.1M | 0.15% | 6,000 | SH |
| 32 | MERCK & CO INC | MRK | 58933Y105 | $1.0M | 0.14% | 8,158 | SH |
| 33 | COSTCO WHOLESALE CORPORATION | COST | 22160K105 | $957.9K | 0.13% | 1,024 | SH |
| 34 | ORACLE CORP | ORCL | 68389X105 | $847.8K | 0.11% | 5,785 | SH |
| 35 | NVIDIA CORPORATION | NVDA | 67066G104 | $773.5K | 0.10% | 3,866 | SH |
| 36 | ABBOTT LABORATORIES | ABT | 002824100 | $713.0K | 0.10% | 7,858 | SH |
| 37 | VERTIV HOLDINGS CO | VRT | 92537N108 | $662.9K | 0.09% | 1,980 | SH |
| 38 | ADOBE INC | ADBE | 00724F101 | $656.1K | 0.09% | 3,200 | SH |
| 39 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $626.5K | 0.08% | 839 | SH |
| 40 | CISCO SYS INC | CSCO | 17275R102 | $596.7K | 0.08% | 5,080 | SH |
| 41 | INTEL CORP | INTC | 458140100 | $540.4K | 0.07% | 3,870 | SH |
| 42 | DISNEY WALT CO | DIS | 254687106 | $509.1K | 0.07% | 5,289 | SH |
| 43 | SCHWAB STRATEGIC TR | SCHX | 808524201 | $495.7K | 0.07% | 16,844 | SH |
| 44 | AMERICAN EXPRESS CO | AXP | 025816109 | $493.8K | 0.07% | 1,460 | SH |
| 45 | QXO INC | QXO | 82846H405 | $475.1K | 0.06% | 27,495 | SH |
| 46 | NORTHERN TR CORP | NTRS | 665859104 | $391.1K | 0.05% | 2,250 | SH |
| 47 | ADVANCED MICRO DEVICES INC | AMD | 007903107 | $386.3K | 0.05% | 665 | SH |
| 48 | DELL TECHNOLOGIES INC | DELL | 24703L202 | $377.5K | 0.05% | 875 | SH |
| 49 | BROADCOM INC | AVGO | 11135F101 | $364.6K | 0.05% | 965 | SH |
| 50 | META PLATFORMS INC | META | 30303M102 | $354.3K | 0.05% | 629 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-07-20 | $738.2M | 60 | 0001387818-26-000003 |
| 2026-03-31 | 2026-04-20 | $797.3M | 54 | 0001387818-26-000002 |
| 2025-12-31 | 2026-01-21 | $928.1M | 52 | 0001387818-26-000001 |