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Portfolio (Quarterly) Guide ↗

BLAIR WILLIAM & CO/IL

· CIK 0000902367
13F Portfolio $37.3B AUM Filed Feb 17, 2026 EDGAR ↗ ← All Funds
Q1 2026 Q4 2025 · All 1867 New
Page 1 of 94  ·  1,867 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
1 MSFT MICROSOFT CORP Technology 3,574,568.0 $1.73B 4.64% NEW $483.62 -23.8%
2 AAPL APPLE INC Technology 5,949,948.0 $1.62B 4.34% NEW $271.86 +3.6%
3 AMZN AMAZON COM INC Consumer Cyclical 6,064,424.0 $1.40B 3.76% NEW $230.82 +4.0%
4 NVDA NVIDIA CORPORATION Technology 5,494,350.0 $1.02B 2.75% NEW $186.50 +4.5%
5 GOOG ALPHABET INC Communication Services 3,118,759.0 $978.7M 2.63% NEW $313.80 +11.9%
6 GOOGL ALPHABET INC Communication Services 2,493,580.0 $780.5M 2.10% NEW $313.00 +13.0%
7 JPM JPMORGAN CHASE & CO. Financial Services 2,309,809.0 $744.3M 2.00% NEW $322.22 +2.2%
8 IDXX IDEXX LABS INC Healthcare 1,001,375.0 $677.5M 1.82% NEW $676.53 -20.8%
9 V VISA INC Financial Services 1,929,237.0 $676.6M 1.82% NEW $350.71 -2.6%
10 SPY SPDR S&P 500 ETF TR Financial Services 857,803.0 $585.0M 1.57% NEW $681.92 +8.7%
11 MA MASTERCARD INCORPORATED Financial Services 955,188.0 $545.3M 1.46% NEW $570.88 -10.7%
12 META META PLATFORMS INC Communication Services 736,202.0 $486.0M 1.30% NEW $660.09 -14.8%
13 COST COSTCO WHSL CORP NEW Consumer Defensive 521,182.0 $449.4M 1.21% NEW $862.34 +9.8%
14 GEV GE VERNOVA INC Utilities 652,306.0 $426.3M 1.14% NEW $653.57 +68.7%
15 APH AMPHENOL CORP NEW Technology 2,653,891.0 $358.6M 0.96% NEW $135.14 +23.1%
16 LLY ELI LILLY & CO Healthcare 324,796.0 $349.1M 0.94% NEW $1074.68 +14.4%
17 NOW SERVICENOW INC Technology 2,214,840.0 $339.3M 0.91% NEW $153.19 -34.7%
18 UBER UBER TECHNOLOGIES INC Technology 4,107,558.0 $335.6M 0.90% NEW $81.71 -7.6%
19 IVV ISHARES TR 488,420.0 $334.5M 0.90% NEW $684.94 +8.7%
20 PGR PROGRESSIVE CORP Financial Services 1,407,032.0 $320.4M 0.86% NEW $227.72 -3.5%
Page 1 of 94  ·  1,867 positions

Period Price is the implied market price on the last day of the reporting period, calculated as reported value ÷ shares held. It is not the fund's purchase price or cost basis — the fund may have initiated or added to the position at any point during the quarter at a different price. Since Period shows the price change from that quarter-end snapshot to today's last price — it reflects stock movement after the report date, not the fund's actual return.

Sector Allocation
Technology 29.9%
Financial Services 17.5%
Industrials 12.7%
Healthcare 12.7%
Consumer Cyclical 8.5%
Communication Services 8.3%
Consumer Defensive 3.9%
Utilities 1.7%
Real Estate 1.6%
Energy 1.6%