Blair William & Co/Il Portfolio Stock Holdings
Blair William & Co/Il disclosed 1922 stock positions valued at approximately $34.9 billion in its latest SEC 13F filing. The largest holdings include APPLE INC, MICROSOFT CORP, and AMAZON COM INC. The filing reflects positions held as of March 31, 2026 and was filed on May 8, 2026.
- Report Period
- March 31, 2026
- No. of Stocks
- 1922
- Portfolio Value
- $34.9B
Holdings by Sector
Blair William & Co/Il Portfolio Holdings in Q1 2026
1814 holdings in the latest reporting period.
Page 1 of 19
| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| APPLE INC | AAPL | Technology | 4.31% | 5,930,914 | -19,034 | -0.32% | $1,505,206,630 |
| MICROSOFT CORP | MSFT | Technology | 3.71% | 3,498,110 | -76,458 | -2.14% | $1,294,895,307 |
| AMAZON COM INC | AMZN | Consumer Cyclical | 3.62% | 6,057,938 | -6,486 | -0.11% | $1,261,686,654 |
| NVIDIA CORPORATION | NVDA | Technology | 2.71% | 5,427,875 | -66,475 | -1.21% | $946,621,332 |
| ALPHABET INC | GOOG | Communication Services | 2.50% | 3,035,765 | -82,994 | -2.66% | $870,839,461 |
| ALPHABET INC | GOOGL | Communication Services | 2.01% | 2,436,117 | -57,463 | -2.30% | $700,529,693 |
| JPMORGAN CHASE & CO | JPM | Financial Services | 1.94% | 2,307,253 | -2,556 | -0.11% | $678,701,562 |
| GE VERNOVA INC | GEV | Utilities | 1.66% | 664,603 | +12,297 | +1.89% | $580,132,301 |
| VISA INC | V | Financial Services | 1.60% | 1,844,583 | -84,654 | -4.39% | $557,506,856 |
| STATE STR SPDR S&P 500 ETF T | SPY | Other | 1.58% | 845,294 | -12,509 | -1.46% | $549,728,310 |
| IDEXX LABS INC | IDXX | Healthcare | 1.52% | 946,336 | -55,039 | -5.50% | $531,736,581 |
| COSTCO WHOLESALE CORPORATION | COST | Consumer Defensive | 1.49% | 521,277 | +95 | +0.02% | $519,416,520 |
| MASTERCARD INCORPORATED | MA | Financial Services | 1.32% | 923,405 | -31,783 | -3.33% | $461,388,665 |
| META PLATFORMS INC | META | Communication Services | 1.18% | 721,720 | -14,482 | -1.97% | $412,917,905 |
| FASTENAL CO | FAST | Industrials | 0.98% | 7,373,707 | +359,041 | +5.12% | $342,140,020 |
| INVESCO EXCHANGE TRADED FD T | RSP | Other | 0.92% | 1,680,604 | +1,130,618 | +205.57% | $322,541,611 |
| AMPHENOL CORP | APH | Technology | 0.91% | 2,520,319 | -133,572 | -5.03% | $318,442,307 |
| ISHARES TR | IVV | Other | 0.91% | 485,839 | -2,581 | -0.53% | $317,354,713 |
| VANGUARD INTL EQUITY INDEX F | VEU | Other | 0.90% | 4,168,625 | +1,457,190 | +53.74% | $313,063,774 |
| ELI LILLY & CO | LLY | Healthcare | 0.85% | 324,018 | -778 | -0.24% | $298,021,975 |
| WALMART INC | WMT | Consumer Defensive | 0.85% | 2,374,282 | -38,302 | -1.59% | $295,075,768 |
| BWX TECHNOLOGIES INC | BWXT | Industrials | 0.84% | 1,438,125 | -1,541 | -0.11% | $294,082,157 |
| ABBVIE INC | ABBV | Healthcare | 0.83% | 1,334,109 | -3,352 | -0.25% | $290,155,471 |
| BROADCOM INC | AVGO | Technology | 0.81% | 918,328 | +21,882 | +2.44% | $284,231,851 |
| STRYKER CORPORATION | SYK | Healthcare | 0.80% | 847,701 | +2,802 | +0.33% | $278,545,919 |
| INTERCONTINENTAL EXCHANGE IN | ICE | Financial Services | 0.72% | 1,593,628 | -96,938 | -5.73% | $250,645,776 |
| HOME DEPOT INC | HD | Consumer Cyclical | 0.72% | 761,419 | +5,237 | +0.69% | $250,423,255 |
| VANGUARD TAX-MANAGED FDS | VEA | Other | 0.71% | 3,862,086 | +713,555 | +22.66% | $247,482,484 |
| DANAHER CORP DEL | DHR | Healthcare | 0.70% | 1,296,804 | -75,820 | -5.52% | $245,874,062 |
| PROGRESSIVE CORP | PGR | Financial Services | 0.69% | 1,219,749 | -187,283 | -13.31% | $241,803,102 |
| VANGUARD INDEX FDS | VOO | Other | 0.68% | 397,380 | +22,150 | +5.90% | $237,454,594 |
| BERKSHIRE HATHAWAY INC DEL | BRK-B | Financial Services | 0.68% | 495,322 | +48,260 | +10.79% | $237,358,312 |
| UBER TECHNOLOGIES INC | UBER | Technology | 0.68% | 3,299,596 | -807,962 | -19.67% | $237,339,968 |
| JOHNSON & JOHNSON | JNJ | Healthcare | 0.67% | 955,632 | +6,057 | +0.64% | $233,594,709 |
| ECOLAB INC | ECL | Basic Materials | 0.66% | 866,411 | +8,540 | +1.00% | $230,482,633 |
| VANGUARD INDEX FDS | VTV | Other | 0.66% | 1,165,912 | +267,888 | +29.83% | $228,751,900 |
| WATSCO INC | WSO | Industrials | 0.61% | 582,700 | -92,740 | -13.73% | $211,980,580 |
| AMERICAN EXPRESS CO | AXP | Financial Services | 0.60% | 693,767 | -6,280 | -0.90% | $209,850,760 |
| PALO ALTO NETWORKS INC | PANW | Technology | 0.60% | 1,304,858 | +54,486 | +4.36% | $209,194,794 |
| INTUITIVE SURGICAL INC | ISRG | Healthcare | 0.56% | 425,228 | -14,142 | -3.22% | $196,025,760 |
| TRANSDIGM GROUP INC | TDG | Industrials | 0.55% | 166,248 | -3,982 | -2.34% | $192,675,350 |
| SERVICENOW INC | NOW | Technology | 0.54% | 1,800,988 | -413,852 | -18.69% | $188,293,262 |
| VEEVA SYS INC | VEEV | Healthcare | 0.54% | 1,067,576 | -161,002 | -13.10% | $187,530,423 |
| BOEING CO | BA | Industrials | 0.53% | 922,102 | +243,515 | +35.89% | $183,525,972 |
| INVESCO QQQ TR | QQQ | Other | 0.51% | 311,016 | +29,716 | +10.56% | $179,512,497 |
| EVERPURE INC | PSTG | Technology | 0.49% | 2,918,046 | -135,576 | -4.44% | $172,281,462 |
| NETFLIX INC. | NFLX | Communication Services | 0.49% | 1,763,451 | +267,756 | +17.90% | $169,555,835 |
| SPDR GOLD TR | GLD | Other | 0.48% | 386,735 | +131,532 | +51.54% | $166,408,231 |
| CINTAS CORP | CTAS | Industrials | 0.47% | 973,553 | -21,464 | -2.16% | $164,666,834 |
| EXXON MOBIL CORP | XOM | Energy | 0.46% | 946,386 | -21,751 | -2.25% | $160,563,928 |
| ISHARES TR | IWM | Other | 0.45% | 628,228 | +69,490 | +12.44% | $155,800,632 |
| CHEVRON CORPORATION | CVX | Energy | 0.42% | 715,986 | +49,527 | +7.43% | $148,137,437 |
| VANGUARD SPECIALIZED FUNDS | VIG | Other | 0.42% | 687,771 | +14,217 | +2.11% | $147,912,091 |
| GUIDEWIRE SOFTWARE INC | GWRE | Technology | 0.42% | 975,296 | -159,255 | -14.04% | $145,865,292 |
| ARISTA NETWORKS INC | ANET | Other | 0.41% | 1,151,227 | +26,667 | +2.37% | $141,347,604 |
| ABBOTT LABORATORIES | ABT | Healthcare | 0.39% | 1,327,761 | -250,038 | -15.85% | $136,321,246 |
| AON PLC | AON | Financial Services | 0.39% | 421,605 | -74,702 | -15.05% | $136,085,646 |
| BLACKSTONE INC | BX | Financial Services | 0.39% | 1,178,612 | -190,433 | -13.91% | $135,528,580 |
| COPART INC | CPRT | Industrials | 0.39% | 4,070,990 | -343,984 | -7.79% | $135,156,859 |
| AAON INC | AAON | Industrials | 0.38% | 1,622,203 | -56,822 | -3.38% | $134,237,265 |
| GOLDMAN SACHS GROUP INC | GS | Financial Services | 0.38% | 156,265 | +1,262 | +0.81% | $132,198,518 |
| PROCTER & GAMBLE CO | PG | Consumer Defensive | 0.37% | 893,933 | +24,965 | +2.87% | $129,119,696 |
| INTERNATIONAL BUSINESS MACHS | IBM | Technology | 0.36% | 518,457 | +47,010 | +9.97% | $125,668,840 |
| UNION PAC CORP | UNP | Industrials | 0.36% | 514,829 | +44,455 | +9.45% | $124,907,914 |
| QUANTA SVCS INC | PWR | Industrials | 0.36% | 225,850 | +145,549 | +181.25% | $123,996,141 |
| DEXCOM INC | DXCM | Healthcare | 0.35% | 1,927,387 | -61,454 | -3.09% | $121,039,928 |
| ROLLINS INC | ROL | Consumer Cyclical | 0.35% | 2,265,013 | +4,255 | +0.19% | $120,974,339 |
| VANGUARD INDEX FDS | VTI | Other | 0.34% | 372,371 | +34,241 | +10.13% | $119,460,233 |
| ISHARES TR | IUSV | Other | 0.34% | 1,165,952 | +71,953 | +6.58% | $119,218,604 |
| RBC BEARINGS INC | RBC | Industrials | 0.34% | 217,833 | -4,402 | -1.98% | $118,309,459 |
| LINDE PLC | LIN | Other | 0.33% | 233,182 | -584 | -0.25% | $115,602,266 |
| CURTISS WRIGHT CORP | CW | Industrials | 0.33% | 167,027 | +10,026 | +6.39% | $113,765,345 |
| ISHARES TR | IWF | Other | 0.33% | 266,026 | +3,008 | +1.14% | $113,433,670 |
| MICRON TECHNOLOGY INC | MU | Technology | 0.32% | 332,311 | +32,341 | +10.78% | $112,268,109 |
| WASTE MGMT INC DEL | WM | Industrials | 0.32% | 484,303 | -14,745 | -2.95% | $111,288,088 |
| TESLA INC | TSLA | Consumer Cyclical | 0.32% | 296,041 | +2,558 | +0.87% | $110,053,358 |
| VANGUARD INDEX FDS | VUG | Other | 0.31% | 250,430 | +534 | +0.21% | $109,385,211 |
| MERCK & CO INC | MRK | Healthcare | 0.31% | 901,789 | +67,765 | +8.13% | $108,476,224 |
| MCDONALDS CORP | MCD | Consumer Cyclical | 0.31% | 348,243 | +5,142 | +1.50% | $108,230,420 |
| COCA COLA CO | KO | Consumer Defensive | 0.31% | 1,415,735 | -37,108 | -2.55% | $107,666,629 |
| JONES LANG LASALLE INC | JLL | Real Estate | 0.29% | 337,417 | -9,347 | -2.70% | $102,682,650 |
| OREILLY AUTOMOTIVE INC | ORLY | Consumer Cyclical | 0.29% | 1,104,400 | -9,640 | -0.87% | $101,947,120 |
| ROCKWELL AUTOMATION INC | ROK | Industrials | 0.29% | 284,067 | +4,914 | +1.76% | $101,946,046 |
| LIVE NATION ENTERTAINMENT IN | LYV | Communication Services | 0.29% | 662,081 | -18,362 | -2.70% | $100,974,003 |
| GENERAL DYNAMICS CORP | GD | Industrials | 0.29% | 292,035 | +7,368 | +2.59% | $100,232,354 |
| CROWDSTRIKE HLDGS INC | CRWD | Technology | 0.28% | 252,379 | +26,559 | +11.76% | $98,531,293 |
| AMETEK INC | AME | Industrials | 0.28% | 457,447 | -28,727 | -5.91% | $98,058,314 |
| ZOETIS INC | ZTS | Healthcare | 0.27% | 795,297 | -174,666 | -18.01% | $94,012,022 |
| ILLINOIS TOOL WKS INC | ITW | Industrials | 0.27% | 360,320 | -9,107 | -2.47% | $93,787,713 |
| ISHARES TR | EFA | Other | 0.27% | 958,805 | +31,922 | +3.44% | $93,128,695 |
| HEICO CORP NEW | HEI | Industrials | 0.26% | 336,799 | +106,398 | +46.18% | $92,350,261 |
| DIAMONDBACK ENERGY INC | FANG | Energy | 0.25% | 445,338 | +141,152 | +46.40% | $88,083,397 |
| NASDAQ INC | NDAQ | Financial Services | 0.25% | 1,026,010 | +266,137 | +35.02% | $87,098,004 |
| THERMO FISHER SCIENTIFIC INC | TMO | Healthcare | 0.24% | 172,953 | +15,943 | +10.15% | $85,011,447 |
| PEPSICO INC | PEP | Consumer Defensive | 0.24% | 546,566 | +10,480 | +1.95% | $84,876,203 |
| STARBUCKS CORP | SBUX | Consumer Cyclical | 0.24% | 938,548 | +91,726 | +10.83% | $84,084,510 |
| CATERPILLAR INC | CAT | Industrials | 0.24% | 118,501 | +2,249 | +1.93% | $83,952,882 |
| SCHWAB CHARLES CORP | SCHW | Financial Services | 0.24% | 890,345 | +172,882 | +24.10% | $83,674,622 |
| ISHARES TR | IEFA | Other | 0.24% | 922,976 | +49,728 | +5.69% | $83,557,019 |
| DEERE & CO | DE | Industrials | 0.24% | 147,623 | +15,934 | +12.10% | $83,156,260 |