Barton Investment Management — 13F Holdings & Portfolio
CIK 1387818 · latest 13F-HR filed 2026-04-20
Barton Investment Management manages $797.3M in 13F-reported U.S. long-equity assets across 54 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are NFLX (28.25%), SHOP (23.85%), AMZN (12.99%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 4 new positions, exited 2, added to 9, and trimmed 32.
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.
$797.3M
Long-equity book
54
Distinct positions
2026-03-31
Filed 2026-04-20
+4 / −2 / ↑9 / ↓32
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- EQUINIX INC$5.2M +19.2%
- JOHNSON & JOHNSON$405.2K +13.2%
- VERTIV HOLDINGS CO$164.4K +45.9%
- COSTCO WHOLESALE CORPORATION$137.3K +15.5%
- SYMBOTIC INC$134.3K +7.4%
Top Trims
- SHOPIFY INC-$73.9M -28.0%
- AMAZON COM INC-$13.2M -11.3%
- BLUE OWL CAPITAL INC-$10.5M -36.1%
- GITLAB INC-$9.0M -42.7%
- GLOBAL E ONLINE LTD-$8.9M -20.9%
New Positions
- INVESCO EXCH TRADED FD TR II$2.2M
- ROYALTY PHARMA PLC$905.4K
- QXO INC$433.2K
- ANALOG DEVICES INC$233.8K
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 | NETFLIX INC. | NFLX | 64110L106 | $225.3M | 28.25% | 2,342,962 | SH |
| 2 | SHOPIFY INC | SHOP | 82509L107 | $190.1M | 23.85% | 1,602,959 | SH |
| 3 | AMAZON COM INC | AMZN | 023135106 | $103.6M | 12.99% | 497,238 | SH |
| 4 | GLOBAL E ONLINE LTD | GLBE | M5216V106 | $33.6M | 4.21% | 1,088,214 | SH |
| 5 | EQUINIX INC | EQIX | 29444U700 | $32.2M | 4.04% | 32,840 | SH |
| 6 | AIR LEASE CORP | AL | 00912X302 | $22.1M | 2.77% | 340,033 | SH |
| 7 | KLAVIYO INC | KVYO | 49845K101 | $20.4M | 2.56% | 1,050,052 | SH |
| 8 | BLUE OWL CAPITAL INC | OWL | 09581B103 | $18.6M | 2.34% | 2,040,731 | SH |
| 9 | OKTA INC | OKTA | 679295105 | $17.8M | 2.24% | 226,576 | SH |
| 10 | GFL ENVIRONMENTAL INC | GFL | 36168Q104 | $17.5M | 2.19% | 419,475 | SH |
| 11 | AMERICAN TOWER CORP | AMT | 03027X100 | $13.5M | 1.70% | 78,433 | SH |
| 12 | GITLAB INC | GTLB | 37637K108 | $12.0M | 1.51% | 554,943 | SH |
| 13 | MICROSOFT CORP | MSFT | 594918104 | $9.0M | 1.13% | 24,416 | SH |
| 14 | ELECTRONIC ARTS INC | EA | 285512109 | $8.9M | 1.12% | 43,695 | SH |
| 15 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $7.2M | 0.90% | 10 | SH |
| 16 | APPLE INC | AAPL | 037833100 | $6.3M | 0.79% | 24,862 | SH |
| 17 | BLACKLINE INC | BL | 09239B109 | $5.9M | 0.74% | 158,644 | SH |
| 18 | ALPHABET INC | GOOGL | 02079K305 | $5.5M | 0.69% | 19,245 | SH |
| 19 | BERKSHIRE HATHAWAY CL B | BRK.B | 084670207 | $4.9M | 0.62% | 10,255 | SH |
| 20 | PAYPAL HLDGS INC | PYPL | 70450Y103 | $4.8M | 0.61% | 106,654 | SH |
| 21 | QUALCOMM INC | QCOM | 747525103 | $4.7M | 0.59% | 36,800 | SH |
| 22 | JOHNSON & JOHNSON | JNJ | 478160104 | $3.5M | 0.44% | 14,202 | SH |
| 23 | VANGUARD INDEX FDS | VTI | 922908769 | $3.4M | 0.43% | 10,617 | SH |
| 24 | ALPHABET INC | GOOG | 02079K107 | $3.1M | 0.38% | 10,635 | SH |
| 25 | INVESCO EXCH TRADED FD TR II | TBLL | 46138G888 | $2.2M | 0.27% | 20,430 | SH |
| 26 | SYMBOTIC INC | SYM | 87151X101 | $2.0M | 0.25% | 36,813 | SH |
| 27 | ABBVIE INC | ABBV | 00287Y109 | $1.6M | 0.21% | 7,578 | SH |
| 28 | VANGUARD SCOTTSDALE FDS | VGSH | 92206C102 | $1.5M | 0.19% | 25,934 | SH |
| 29 | PRICE T ROWE GROUP INC | TROW | 74144T108 | $1.5M | 0.19% | 16,440 | SH |
| 30 | EXXON MOBIL CORP | XOM | 30231G102 | $1.4M | 0.18% | 8,240 | SH |
| 31 | COSTCO WHOLESALE CORPORATION | COST | 22160K105 | $1.0M | 0.13% | 1,024 | SH |
| 32 | MERCK & CO INC | MRK | 58933Y105 | $981.3K | 0.12% | 8,158 | SH |
| 33 | ROYALTY PHARMA PLC | RPRX | G7709Q104 | $905.4K | 0.11% | 18,875 | SH |
| 34 | DOORDASH INC | DASH | 25809K105 | $900.9K | 0.11% | 6,000 | SH |
| 35 | ORACLE CORP | ORCL | 68389X105 | $851.0K | 0.11% | 5,785 | SH |
| 36 | ABBOTT LABORATORIES | ABT | 002824100 | $806.8K | 0.10% | 7,858 | SH |
| 37 | ADOBE INC | ADBE | 00724F101 | $777.9K | 0.10% | 3,200 | SH |
| 38 | NVIDIA CORPORATION | NVDA | 67066G104 | $639.4K | 0.08% | 3,666 | SH |
| 39 | DISNEY WALT CO | DIS | 254687106 | $606.1K | 0.08% | 6,289 | SH |
| 40 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $545.6K | 0.07% | 839 | SH |
| 41 | BILL HOLDINGS INC | BILL | 090043100 | $543.2K | 0.07% | 14,182 | SH |
| 42 | VERTIV HOLDINGS CO | VRT | 92537N108 | $522.5K | 0.07% | 2,085 | SH |
| 43 | AMERICAN EXPRESS CO | AXP | 025816109 | $461.3K | 0.06% | 1,525 | SH |
| 44 | QXO INC | QXO | 82846H405 | $433.2K | 0.05% | 22,305 | SH |
| 45 | SCHWAB STRATEGIC TR | SCHX | 808524201 | $430.8K | 0.05% | 16,800 | SH |
| 46 | CISCO SYS INC | CSCO | 17275R102 | $394.2K | 0.05% | 5,080 | SH |
| 47 | META PLATFORMS INC | META | 30303M102 | $359.9K | 0.05% | 629 | SH |
| 48 | WALMART INC | WMT | 931142103 | $315.1K | 0.04% | 2,535 | SH |
| 49 | NORTHERN TR CORP | NTRS | 665859104 | $314.0K | 0.04% | 2,250 | SH |
| 50 | BROADCOM INC | AVGO | 11135F101 | $308.0K | 0.04% | 995 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-04-20 | $797.3M | 54 | 0001387818-26-000002 |
| 2025-12-31 | 2026-01-21 | $928.1M | 52 | 0001387818-26-000001 |