Barton Investment Management
Comparing Q1 2026 vs Q4 2025
Sorting applies to all holdings for this quarter on the server, then the page is sliced. Prior-quarter values come from the full prior-quarter filing.
Issuer ▲▼ | Shares | Value ($K) | ||||
|---|---|---|---|---|---|---|
Q4 2025 ▲▼ | Q1 2026 ▲▼ | Change ▲▼ | Q4 2025 ▲▼ | Q1 2026 ▲▼ | Change ▲▼ | |
| EQUINIX INC | 35,256 | 32,840 | -2,416 | 27,011,737 | 32,191,082 | +5,179,345 |
| BERKSHIRE HATHAWAY CL B | 0 | 10,255 | +10,255 | 0 | 4,914,196 | +4,914,196 |
| NETFLIX INC. | 2,371,717 | 2,342,962 | -28,755 | 222,372,186 | 225,275,797 | +2,903,611 |
| INVESCO EXCH TRADED FD TR II | 0 | 20,430 | +20,430 | 0 | 2,156,387 | +2,156,387 |
| ROYALTY PHARMA PLC | 0 | 18,875 | +18,875 | 0 | 905,434 | +905,434 |
| QXO INC | 0 | 22,305 | +22,305 | 0 | 433,164 | +433,164 |
| JOHNSON & JOHNSON | 14,817 | 14,202 | -615 | 3,066,379 | 3,471,537 | +405,158 |
| ANALOG DEVICES INC | 0 | 735 | +735 | 0 | 233,833 | +233,833 |
| VERTIV HOLDINGS CO | 2,210 | 2,085 | -125 | 358,043 | 522,460 | +164,417 |
| COSTCO WHOLESALE CORPORATION | 1,024 | 1,024 | 0 | 883,037 | 1,020,345 | +137,308 |
| SYMBOTIC INC | 30,658 | 36,813 | +6,155 | 1,824,151 | 1,958,452 | +134,301 |
| MERCK & CO INC | 8,158 | 8,158 | 0 | 858,712 | 981,326 | +122,614 |
| CISCO SYS INC | 4,265 | 5,080 | +815 | 328,533 | 394,158 | +65,625 |
| WALMART INC | 2,535 | 2,535 | 0 | 282,425 | 315,050 | +32,625 |
| PFIZER INC | 9,803 | 9,720 | -83 | 244,084 | 272,951 | +28,867 |
| NORTHERN TR CORP | 2,250 | 2,250 | 0 | 307,328 | 314,033 | +6,705 |
| VANGUARD INDEX FDS | 1,235 | 1,235 | 0 | 235,873 | 242,307 | +6,434 |
| SCHWAB STRATEGIC TR | 16,800 | 16,800 | 0 | 452,088 | 430,752 | -21,336 |
| STATE STR SPDR S&P 500 ETF T | 839 | 839 | 0 | 572,131 | 545,636 | -26,495 |
| BROADCOM INC | 995 | 995 | 0 | 344,406 | 307,995 | -36,411 |
| VANGUARD SCOTTSDALE FDS | 26,589 | 25,934 | -655 | 1,561,572 | 1,518,177 | -43,395 |
| AUTOMATIC DATA PROCESSING IN | 1,400 | 1,400 | 0 | 360,122 | 284,452 | -75,670 |
| EXXON MOBIL CORP | 12,434 | 8,240 | -4,194 | 1,496,308 | 1,397,999 | -98,309 |
| DISNEY WALT CO | 6,289 | 6,289 | 0 | 715,500 | 606,134 | -109,366 |
| NVIDIA CORPORATION | 4,016 | 3,666 | -350 | 748,984 | 639,351 | -109,633 |
| AMERICAN EXPRESS CO | 1,544 | 1,525 | -19 | 571,203 | 461,282 | -109,921 |
| META PLATFORMS INC | 779 | 629 | -150 | 514,211 | 359,870 | -154,341 |
| VANGUARD INDEX FDS | 10,752 | 10,617 | -135 | 3,604,824 | 3,406,040 | -198,784 |
| PRICE T ROWE GROUP INC | 16,440 | 16,440 | 0 | 1,683,128 | 1,481,902 | -201,226 |
| ORACLE CORP | 5,785 | 5,785 | 0 | 1,127,555 | 851,032 | -276,523 |
| BILL HOLDINGS INC | 15,117 | 14,182 | -935 | 824,482 | 543,171 | -281,311 |
| ALPHABET INC | 10,635 | 10,635 | 0 | 3,337,263 | 3,050,757 | -286,506 |
| ADOBE INC | 3,200 | 3,200 | 0 | 1,119,968 | 777,856 | -342,112 |
| BERKSHIRE HATHAWAY INC DEL | 10 | 10 | 0 | 7,548,000 | 7,181,400 | -366,600 |
| AMERICAN TOWER CORP | 79,208 | 78,433 | -775 | 13,906,549 | 13,535,968 | -370,581 |
| ABBOTT LABORATORIES | 9,894 | 7,858 | -2,036 | 1,239,620 | 806,781 | -432,839 |
| DOORDASH INC | 6,000 | 6,000 | 0 | 1,358,880 | 900,900 | -457,980 |
| ALPHABET INC | 19,410 | 19,245 | -165 | 6,075,330 | 5,534,093 | -541,237 |
| GFL ENVIRONMENTAL INC | 420,150 | 419,475 | -675 | 18,045,443 | 17,500,497 | -544,946 |
| ABBVIE INC | 9,614 | 7,578 | -2,036 | 2,196,703 | 1,648,140 | -548,563 |
| APPLE INC | 25,402 | 24,862 | -540 | 6,905,788 | 6,309,727 | -596,061 |
| ELECTRONIC ARTS INC | 49,065 | 43,695 | -5,370 | 10,025,452 | 8,908,100 | -1,117,352 |
| KLAVIYO INC | 670,042 | 1,050,052 | +380,010 | 21,756,264 | 20,434,012 | -1,322,252 |
| PAYPAL HLDGS INC | 117,171 | 106,654 | -10,517 | 6,840,443 | 4,823,961 | -2,016,482 |
| MICROSOFT CORP | 24,461 | 24,416 | -45 | 11,829,829 | 9,038,071 | -2,791,758 |
| BLACKLINE INC | 160,204 | 158,644 | -1,560 | 8,857,680 | 5,869,828 | -2,987,852 |
| QUALCOMM INC | 47,081 | 36,800 | -10,281 | 8,053,286 | 4,739,145 | -3,314,141 |
| AIR LEASE CORP | 403,246 | 340,033 | -63,213 | 25,900,491 | 22,081,744 | -3,818,747 |
| OKTA INC | 250,886 | 226,576 | -24,310 | 21,694,113 | 17,833,797 | -3,860,316 |
| GLOBAL E ONLINE LTD | 1,079,254 | 1,088,214 | +8,960 | 42,425,475 | 33,571,402 | -8,854,073 |
| GITLAB INC | 558,603 | 554,943 | -3,660 | 20,964,371 | 12,008,967 | -8,955,404 |
| BLUE OWL CAPITAL INC | 1,950,164 | 2,040,731 | +90,567 | 29,135,451 | 18,631,875 | -10,503,576 |
| AMAZON COM INC | 505,676 | 497,238 | -8,438 | 116,720,135 | 103,559,759 | -13,160,376 |
| SHOPIFY INC | 1,640,426 | 1,602,959 | -37,467 | 264,059,374 | 190,142,997 | -73,916,377 |