Blair William & Co.

In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 17, 2026), Blair William & Co. reported 1,845 stock positions worth $37.3 billion. Its top holding was Microsoft (MSFT) at 4.6% of the portfolio, followed by Apple (AAPL, 4.3%) and Amazon.com (AMZN, 3.8%). Compared with Q3 2025, it opened 112 new positions, sold out of 96, added to 755 and reduced 753. The biggest buy was Eli Lilly (LLY, shares +8%) and the biggest sale Fiserv (FISV, shares −71%).

Most Recent 13F
Q2 2026
Location
CHICAGO, IL
CIK
0000902367
Portfolio Value
$37.3B (Q4 2025)
SEC Filing
0001104659-26-015563 ↗ filed Feb 17, 2026

Holdings Value

0$10.0B$20.0B$30.0B$40.0B Q1 2024: $31.8B Q1 2024 Q2 2024: $32.4B Q2 2024 Q3 2024: $34.0B Q3 2024 Q4 2024: $34.4B Q4 2024 Q1 2025: $33.2B Q1 2025 Q2 2025: $36.0B Q2 2025 Q3 2025: $37.6B Q3 2025 Q4 2025: $37.3B $37.3B Q4 2025 Q1 2026: $34.9B Q1 2026 Q2 2026: $38.4B Q2 2026

Holdings 1,845 stocks · $37.3B

MSFT Microsoft Corp. 4.64% 3,574,568 $1.7B Reduce -0.9%
AAPL Apple Inc. 4.34% 5,949,948 $1.6B Reduce -0.7%
AMZN Amazon.com Inc. 3.76% 6,064,424 $1.4B Add +1.0%
NVDA Nvidia Corp. 2.75% 5,494,350 $1.0B Reduce -2.7%
GOOG Alphabet Inc. Class C 2.63% 3,118,759 $978.7M Reduce -0.9%
GOOGL Alphabet Inc. Class A 2.10% 2,493,580 $780.5M Reduce -1.3%
JPM JPMorgan Chase & Co. 2.00% 2,309,809 $744.3M Add +0.1%
IDXX Idexx Laboratories Inc. 1.82% 1,001,375 $677.5M Reduce -3.0%
V Visa Inc. Class A 1.82% 1,929,237 $676.6M Reduce -1.7%
SPY SS SPDR S&P 500 ETF Trust-US 1.57% 857,803 $585.0M Reduce -0.2%
MA Mastercard Inc. Class A 1.46% 955,188 $545.3M Reduce -2.2%
META Meta Platforms Inc. Class A 1.30% 736,202 $486.0M Add +8.4%
COST Costco Wholesale Corp. 1.21% 521,182 $449.4M Reduce -5.5%
GEV GE Vernova Inc. 1.14% 652,306 $426.3M Add +3.9%
APH Amphenol Corp. Class A 0.96% 2,653,891 $358.6M Reduce -3.5%
LLY Eli Lilly & Co. 0.94% 324,796 $349.1M Add +8.4%
NOW ServiceNow Inc. 0.91% 2,214,840 $339.3M Add +11.0%
UBER Uber Technologies Inc. 0.90% 4,107,558 $335.6M Reduce -3.3%
IVV iShares Core S&P 500 ETF 0.90% 488,420 $334.5M Add +9.4%
PGR Progressive Corp. 0.86% 1,407,032 $320.4M Reduce -2.2%
DHR Danaher Corp. 0.84% 1,372,624 $314.2M Add +0.5%
AVGO Broadcom Inc. 0.83% 896,446 $310.3M Add +0.8%
ABBV Abbvie Inc. 0.82% 1,337,461 $305.6M Add +5.8%
SYK Stryker Corp. 0.80% 844,899 $297.0M Reduce -8.1%
FAST Fastenal Co. 0.76% 7,014,666 $281.5M Add +0.7%
VEEV Veeva Systems Inc. Class A 0.74% 1,228,578 $274.3M Reduce -4.7%
ICE Intercontinental Exchange Inc. 0.73% 1,690,566 $273.8M Reduce -2.3%
WMT Walmart Inc. 0.72% 2,412,584 $268.8M Add +0.3%
HD Home Depot Inc. 0.70% 756,182 $260.2M Reduce -1.3%
AXP American Express Co. 0.70% 700,047 $259.0M Reduce -0.5%
ISRG Intuitive Surgical Inc. 0.67% 439,370 $248.8M Reduce -4.1%
BWXT BWX Technologies Inc. 0.67% 1,439,666 $248.8M Add +20.9%
VOO Vanguard S&P 500 ETF 0.63% 375,230 $235.3M Add +13.7%
PANW Palo Alto Networks Inc. 0.62% 1,250,372 $230.3M Add +1.0%
GWRE Guidewire Software Inc. 0.61% 1,134,551 $228.1M Reduce -2.0%
WSO Watsco Inc. 0.61% 675,440 $227.6M Reduce -15.6%
TDG Transdigm Group Inc. 0.61% 170,230 $226.4M Reduce -1.4%
ECL Ecolab Inc. 0.60% 857,871 $225.2M Add +8.0%
BRK.B Berkshire Hathaway Inc. Class B 0.60% 447,062 $224.7M Add +0.4%
BX Blackstone Inc. 0.57% 1,369,045 $211.0M Add +0.5%
P Everpure Inc. Class A filed as PURE STORAGE INC 0.55% 3,053,622 $204.6M Reduce -1.0%
VEU Vanguard Ftse All-World Ex-U 0.54% 2,711,435 $199.5M Add +19.6%
APP AppLovin Corp. Class A 0.53% 294,439 $198.4M Reduce -6.9%
ABT Abbott Laboratories 0.53% 1,577,799 $197.7M Reduce -1.3%
VEA Vanguard Ftse Developed ETF 0.53% 3,148,531 $196.7M Add +3.4%
JNJ Johnson & Johnson 0.53% 949,575 $196.5M Add +0.1%
TYL Tyler Technologies Inc. 0.50% 412,858 $187.4M Reduce -2.8%
CTAS Cintas Corp. 0.50% 995,017 $187.1M Reduce -1.1%
WDAY Workday Inc. Class A 0.48% 829,064 $178.1M Reduce -6.1%
AON Aon PLC Class A 0.47% 496,307 $175.1M Reduce -6.3%
CPRT Copart Inc. 0.46% 4,414,974 $172.8M Reduce -6.8%
QQQ Invesco QQQ Trust Series 1 0.46% 281,300 $172.8M Add +5.9%
VTV Vanguard Mrngstr Val ETF-Aui 0.46% 898,024 $171.5M Add +11.7%
INTU Intuit Inc. 0.43% 243,875 $161.5M Reduce -2.6%
VIG Vanguard Dividend Apprec ETF 0.40% 673,554 $148.0M Add +1.0%
ANET Arista Networks Inc. 0.40% 1,124,560 $147.4M Add +1.1%
BA The Boeing Co. 0.40% 678,587 $147.3M Add +2.0%
CRM Salesforce Inc. 0.39% 552,086 $146.3M Reduce -10.2%
NFLX Netflix Inc. 0.38% 1,495,695 $140.2M Add +0.2%
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.37% 471,447 $139.6M Add +2.5%
IWM iShares Russell 2000 ETF 0.37% 558,738 $137.5M Add +11.6%
GS Goldman Sachs Group Inc. 0.37% 155,003 $136.2M Add +1.2%
CSGP Costar Group Inc. 0.37% 2,023,523 $136.1M Reduce -35.3%
ROL Rollins Inc. 0.36% 2,260,758 $135.7M Add +6.4%
DXCM Dexcom Inc. 0.35% 1,988,841 $132.0M Reduce -5.7%
TSLA Tesla Inc. 0.35% 293,483 $132.0M Add +9.5%
RYAN Ryan Specialty Holdings Inc. 0.35% 2,522,471 $130.2M Reduce -5.2%
AAON Aaon Inc. 0.34% 1,679,025 $128.0M Reduce -7.7%
IRTC Irhythm Holdings Inc. 0.34% 718,797 $127.5M Reduce -3.0%
PG The Procter & Gamble Co. 0.33% 868,968 $124.5M Reduce -6.4%
IWF iShares Russell 1000 Growth 0.33% 263,018 $124.5M Add +4.9%
MDB Mongodb Inc. 0.33% 293,886 $123.3M Reduce -2.0%
ZTS Zoetis Inc. 0.33% 969,963 $122.0M Reduce -28.8%
VUG Vanguard Mrngstar GR ETF-Sui 0.33% 249,896 $121.9M Add +23.6%
AMT American Tower Corp. 0.32% 678,244 $119.1M Reduce -13.3%
JLL Jones Lang Lasalle Inc. 0.31% 346,764 $116.7M Add +22.3%
XOM Exxon Mobil Corp. 0.31% 968,137 $116.5M Add +0.5%
VTI VG Morningstar TS MKT ETF-US 0.30% 338,130 $113.4M Add +16.0%
IUSV iShares Core S&P U.S. Value 0.30% 1,093,999 $112.2M Add +5.0%
ADBE Adobe Inc. 0.30% 318,448 $111.5M Reduce -19.0%
SPGI S&P Global Inc. 0.30% 211,333 $110.4M Reduce -1.5%
WM Waste Management Inc. 0.29% 499,048 $109.6M Add +3.0%
UNP Union Pacific Corp. 0.29% 470,374 $108.8M Reduce -2.8%
ROK Rockwell Automation Inc. 0.29% 279,153 $108.6M Reduce -0.0%
ACN Accenture PLC Class A 0.29% 402,199 $107.9M Reduce -10.2%
CRWD CrowdStrike Holdings Inc. Class A 0.28% 225,820 $105.9M Add +0.2%
RSP Invesco S&P 500 Equal Weight 0.28% 549,986 $105.4M Add +34.0%
MCD McDonald's Corp. 0.28% 343,101 $104.9M Reduce -0.3%
ORLY O'reilly Automotive Inc. 0.27% 1,114,040 $101.6M Add +2.6%
CVX Chevron Corp. 0.27% 666,459 $101.6M Reduce -0.3%
KO The Coca-Cola Co. 0.27% 1,452,843 $101.6M Reduce -4.5%
GLD SPDR Gold Shares 0.27% 255,203 $101.1M Add +43.2%
AME Ametek Inc. 0.27% 486,174 $99.8M Reduce -8.1%
LIN Linde PLC 0.27% 233,766 $99.7M Reduce -2.1%
RBC RBC Bearings Inc. 0.27% 222,235 $99.7M Add +4.4%
SHOP Shopify Inc. Class A 0.26% 610,733 $98.3M Add +17.4%
LYV Live Nation Entertainment Inc. 0.26% 680,443 $97.0M Reduce -2.5%
GD General Dynamics Corp. 0.26% 284,667 $95.8M Add +0.2%
ORCL Oracle Corp. 0.25% 477,646 $93.1M Reduce -6.4%
QCOM Qualcomm Inc. 0.25% 542,992 $92.9M Reduce -6.3%

Show all 1,845 holdings

Other holdings (22): bonds, preferreds, convertibles and warrants · $3.8M (not counted above)
SecurityClassShares / PrincipalValueChange
WELLS FARGO & COMPANY (WFC 7.5 PERP L) PERP PFD CNV A 985$1.2MAdd +25.5%
CORZW Core Scientific Inc. - 27 *W EXP 01/23/202 114,509$969KNo change
BANK OF AMERICA CORP (BAC 7.25 PERP L) 7.25%CNV PFD L 518$649KAdd +93.3%
TELADOC HEALTH INC (TDOC 1.25 06/01/27) NOTE 1.250% 6/0 · principal 525,000$499KNo change
NOVANTA INC (NOVT 6.5 11/01/28) UNIT 11/01/2028 4,116$226KNew
PELOTON INTERACTIVE INC (PTON 0 02/15/26) NOTE 2/1 · principal 100,000$99KNo change
HOLLEY INC *W EXP 11/30/202 407,489$44KAdd +1.5%
BOEING CO/THE (BA 6 10/15/27) DEP CONV PFD A 562$39KNo change
DISH NETWORK CORP (DISH 3.375 08/15/26) NOTE 3.375% 8/1 · principal 25,000$24KNo change
ALBEMARLE CORP (ALB 7.25 03/01/27) 7.25% DEP SHS A 300$18KNo change
OPFI.WS Oppfi Inc. -CW26 *W EXP 07/20/202 11,500$18KNew
OXY.WS Occidental Petroleum-CW27 *W EXP 08/03/202 855$16KAdd +4.8%
HTZWW Hertz Global Hldgs Inc. -CW51 *W EXP 06/30/205 5,602$15KNo change
NEXTERA ENERGY INC (NEE 7.234 11/01/27) UNIT 11/01/2027 190$9KNew
CORZZ Core Scientific Inc. - 29 *W EXP 01/23/202 121$2KNo change
OPENW Opendoor Technologies Inc.-26 *W EXP 11/20/202 1,730$2KNo change
OPENL Opendoor Technologies Inc.-26 *W EXP 11/20/202 1,730$900New
OPENZ Opendoor Technologies Inc.-26 *W EXP 11/20/202 1,730$691New
SEATW Vivid Seats Inc. -CW26 *W EXP 10/18/202 21,500$649Reduce -2.3%
EXEEL Chesapeake Energy Corp. -CW26 *W EXP 02/09/202 2$199New
ISPOW Inspirato -CW30 *W EXP 02/11/202 15,000$116No change
PIIIW P3 Health Partne -CW27 *W EXP 11/19/202 8,598$86No change

Total filed on the 13F, all lines: $37.3B.

Portfolio Sells Q3 2025 → Q4 2025

FISV Fiserv Inc. Reduce -70.6% 0.10% −0.56
CSGP Costar Group Inc. Reduce -35.3% 0.37% −0.34
MSFT Microsoft Corp. Reduce -0.9% 4.64% −0.33
VEEV Veeva Systems Inc. Class A Reduce -4.7% 0.74% −0.29
WSO Watsco Inc. Reduce -15.6% 0.61% −0.25
UBER Uber Technologies Inc. Reduce -3.3% 0.90% −0.21
ZTS Zoetis Inc. Reduce -28.8% 0.33% −0.20
POOL Pool Corp. Reduce -75.1% 0.04% −0.19
COST Costco Wholesale Corp. Reduce -5.5% 1.21% −0.15
P Everpure Inc. Class A Reduce -1.0% 0.55% −0.14
ORCL Oracle Corp. Reduce -6.4% 0.25% −0.13
HD Home Depot Inc. Reduce -1.3% 0.70% −0.13
CWAN Clearwater Analytics HDS-A Reduce -52.7% 0.22% −0.12
AAON Aaon Inc. Reduce -7.7% 0.34% −0.11
SYK Stryker Corp. Reduce -8.1% 0.80% −0.11
CPRT Copart Inc. Reduce -6.8% 0.46% −0.10
MSI Motorola Solutions Inc. Reduce -35.5% 0.12% −0.10
GWRE Guidewire Software Inc. Reduce -2.0% 0.61% −0.10
CMG Chipotle Mexican Grill Inc. Reduce -58.0% 0.06% −0.09
TYL Tyler Technologies Inc. Reduce -2.8% 0.50% −0.09
WDAY Workday Inc. Class A Reduce -6.1% 0.48% −0.09
PGR Progressive Corp. Reduce -2.2% 0.86% −0.09
AMT American Tower Corp. Reduce -13.3% 0.32% −0.08
APP AppLovin Corp. Class A Reduce -6.9% 0.53% −0.07
ADBE Adobe Inc. Reduce -19.0% 0.30% −0.07
DOCS Doximity Inc. Class A Reduce -61.6% 0.02% −0.05
NVDA Nvidia Corp. Reduce -2.7% 2.75% −0.05
DKNG Draftkings Inc. Class A Reduce -95.5% 0.00% −0.05
TREX Trex Company Inc. Reduce -72.3% 0.01% −0.05
RYAN Ryan Specialty Holdings Inc. Reduce -5.2% 0.35% −0.05
CHWY Chewy Inc. Class A Reduce -26.8% 0.07% −0.05
CTAS Cintas Corp. Reduce -1.1% 0.50% −0.05
PRCT Procept Biorobotics Corp. Reduce -68.5% 0.02% −0.05
PG The Procter & Gamble Co. Reduce -6.4% 0.33% −0.05
LYV Live Nation Entertainment Inc. Reduce -2.5% 0.26% −0.04
CHDN Churchill Downs Inc. Reduce -92.3% 0.00% −0.04
ITW Illinois Tool Works Reduce -10.4% 0.24% −0.04
RMD Resmed Inc. Reduce -16.1% 0.12% −0.04
ICE Intercontinental Exchange Inc. Reduce -2.3% 0.73% −0.04
ABT Abbott Laboratories Reduce -1.3% 0.53% −0.04
DSGX The Descartes Systems Grp Reduce -37.0% 0.05% −0.04
LIN Linde PLC Reduce -2.1% 0.27% −0.03
VRSK Verisk Analytics Inc. Reduce -2.6% 0.23% −0.03
IRM Iron Mountain Inc. Reduce -25.2% 0.05% −0.03
AON Aon PLC Class A Reduce -6.3% 0.47% −0.03
AJG Arthur J Gallagher & Co. Reduce -22.0% 0.06% −0.03
UNH Unitedhealth Group Inc. Reduce -22.2% 0.09% −0.03
CBZ Cbiz Inc. Reduce -57.6% 0.02% −0.03
ALL Allstate Corp. Reduce -12.0% 0.17% −0.03
ADP Automatic Data Processing Reduce -2.5% 0.17% −0.03

Portfolio Buys Q3 2025 → Q4 2025

LLY Eli Lilly & Co. Add +8.4% 0.94% +0.33
AMZN Amazon.com Inc. Add +1.0% 3.76% +0.25
DHR Danaher Corp. Add +0.5% 0.84% +0.12
GEV GE Vernova Inc. Add +3.9% 1.14% +0.12
VEU Vanguard Ftse All-World Ex-U Add +19.6% 0.54% +0.10
GLD SPDR Gold Shares Add +43.2% 0.27% +0.10
IVV iShares Core S&P 500 ETF Add +9.4% 0.90% +0.10
MU Micron Technology Inc. Add +0.0% 0.23% +0.10
VOO Vanguard S&P 500 ETF Add +13.7% 0.63% +0.09
JLL Jones Lang Lasalle Inc. Add +22.3% 0.31% +0.09
BWXT BWX Technologies Inc. Add +20.9% 0.67% +0.08
RSP Invesco S&P 500 Equal Weight Add +34.0% 0.28% +0.08
TMO Thermo Fisher Scientific Inc. Add +17.1% 0.24% +0.07
VUG Vanguard Mrngstar GR ETF-Sui Add +23.6% 0.33% +0.07
WMT Walmart Inc. Add +0.3% 0.72% +0.06
VTV Vanguard Mrngstr Val ETF-Aui Add +11.7% 0.46% +0.06
JPM JPMorgan Chase & Co. Add +0.1% 2.00% +0.06
SMMD iShares Russell 2500 ETF Add +156.7% 0.10% +0.06
JNJ Johnson & Johnson Add +0.1% 0.53% +0.06
SHOP Shopify Inc. Class A Add +17.4% 0.26% +0.06
WING Wingstop Inc. New 0.06% +0.06
IUSG iShares Core S&P U.S. Growth Add +39.6% 0.19% +0.06
ARGX Argenx SE - ADR Add +1005.3% 0.06% +0.05
MRK Merck & Co. Inc. Add +2.7% 0.24% +0.05
NDAQ Nasdaq Inc. Add +23.2% 0.20% +0.05
AVGO Broadcom Inc. Add +0.8% 0.83% +0.05
VTI VG Morningstar TS MKT ETF-US Add +16.0% 0.30% +0.05
SLV iShares Silver Trust Add +116.6% 0.07% +0.05
IOT Samsara Inc. Class A Add +68.2% 0.13% +0.05
PWR Quanta Services Inc. Add +104.1% 0.09% +0.05
IWM iShares Russell 2000 ETF Add +11.6% 0.37% +0.05
RBC RBC Bearings Inc. Add +4.4% 0.27% +0.05
CW Curtiss-Wright Corp. Add +20.1% 0.23% +0.04
VEA Vanguard Ftse Developed ETF Add +3.4% 0.53% +0.04
ABBV Abbvie Inc. Add +5.8% 0.82% +0.04
GS Goldman Sachs Group Inc. Add +1.2% 0.37% +0.04
POCT Innovator U.S. Equity Power Add +941.6% 0.04% +0.04
QQQ Invesco QQQ Trust Series 1 Add +5.9% 0.46% +0.04
FANG Diamondback Energy Inc. Add +38.6% 0.12% +0.04
MIAX Miami International Holdings Add +80.0% 0.08% +0.04
TSLA Tesla Inc. Add +9.5% 0.35% +0.04
RDVY First Trust Rising Dividend Add +30.3% 0.14% +0.04
TWLO Twilio Inc. Class A Add +18.3% 0.09% +0.04
VRT Vertiv Holdings Co. Class A Add +97.5% 0.07% +0.04
MCK McKesson Corp. Add +105.4% 0.06% +0.03
EQT Eqt Corp. Add +282.1% 0.05% +0.03
ROL Rollins Inc. Add +6.4% 0.36% +0.03
CAT Caterpillar Inc. Add +0.6% 0.18% +0.03
ONON On Holding AG Class A New 0.03% +0.03
IEFA iShares Core MSCI Eafe ETF Add +13.3% 0.21% +0.03

Notes & Other Activity Q3 2025 → Q4 2025

WELLS FARGO & COMPANY (WFC 7.5 PERP L) PERP PFD CNV A Add +25.5% 985 $1.2M
BANK OF AMERICA CORP (BAC 7.25 PERP L) 7.25%CNV PFD L Add +93.3% 518 $649K
EVOLENT HEALTH INC (EVH 1.5 10/15/25) NOTE 1.500%10/1 · principal Sold out 365,000 $362Kbefore exit
NOVANTA INC (NOVT 6.5 11/01/28) UNIT 11/01/2028 New 4,116 $226K
HOLLEY INC *W EXP 11/30/202 Add +1.5% 407,489 $44K
OPFI.WS Oppfi Inc. -CW26 *W EXP 07/20/202 New 11,500 $18K
OXY.WS Occidental Petroleum-CW27 *W EXP 08/03/202 Add +4.8% 855 $16K
NEXTERA ENERGY INC (NEE 7.234 11/01/27) UNIT 11/01/2027 New 190 $9K
OPENL Opendoor Technologies Inc.-26 *W EXP 11/20/202 New 1,730 $900
OPENZ Opendoor Technologies Inc.-26 *W EXP 11/20/202 New 1,730 $691
SEATW Vivid Seats Inc. -CW26 *W EXP 10/18/202 Reduce -2.3% 21,500 $649
EXEEL Chesapeake Energy Corp. -CW26 *W EXP 02/09/202 New 2 $199

Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 1,957$38.4BAAPL, AMZN, MSFT, NVDA, GOOG
Q1 2026 1,876$34.9BAAPL, MSFT, AMZN, NVDA, GOOG
Q4 2025 1,845$37.3BMSFT, AAPL, AMZN, NVDA, GOOG
Q3 2025 1,828$37.6BMSFT, AAPL, AMZN, NVDA, GOOG
Q2 2025 1,804$36.0BMSFT, AMZN, AAPL, NVDA, V
Q1 2025 1,780$33.2BMSFT, AAPL, AMZN, V, NVDA
Q4 2024 1,792$34.4BMSFT, AAPL, AMZN, NVDA, V
Q3 2024 1,797$34.0BMSFT, AAPL, AMZN, V, IDXX
Q2 2024 1,781$32.4BMSFT, AAPL, AMZN, GOOG, V
Q1 2024 1,765$31.8BMSFT, AMZN, AAPL, IDXX, DXCM