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Portfolio (Quarterly) Guide ↗

BLAIR WILLIAM & CO/IL

· CIK 0000902367
13F Portfolio $34.9B AUM 1,922 positions Filed May 8, 2026 EDGAR ↗ ← All Funds
Q1 2026 Q4 2025 · All 155 New 708 Added 689 Reduced 100 Exited
Page 1 of 97  ·  1,922 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
1 AAPL APPLE INC Technology 5,930,914.0 $1.51B 4.31% $253.79 +17.3%
2 MSFT MICROSOFT CORP Technology 3,498,110.0 $1.29B 3.71% -76K -2.1% $370.17 +2.0%
3 AMZN AMAZON COM INC Consumer Cyclical 6,057,938.0 $1.26B 3.62% $208.27 +16.7%
4 NVDA NVIDIA CORPORATION Technology 5,427,875.0 $946.6M 2.71% -66K -1.2% $174.40 +20.5%
5 GOOG ALPHABET INC Communication Services 3,035,765.0 $870.8M 2.50% -83K -2.7% $286.86 +27.8%
6 GOOGL ALPHABET INC Communication Services 2,436,117.0 $700.5M 2.01% -57K -2.3% $287.56 +28.0%
7 JPM JPMORGAN CHASE & CO Financial Services 2,307,253.0 $678.7M 1.95% $294.16 +11.6%
8 GEV GE VERNOVA INC Utilities 664,603.0 $580.1M 1.66% +12K +1.9% $872.90 +25.8%
9 V VISA INC Financial Services 1,844,583.0 $557.5M 1.60% -85K -4.4% $302.24 +8.7%
10 SPY STATE STR SPDR S&P 500 ETF T Financial Services 845,294.0 $549.7M 1.57% -13K -1.5% $650.34 +14.8%
11 IDXX IDEXX LABS INC Healthcare 946,336.0 $531.7M 1.52% -55K -5.5% $561.89 -0.5%
12 COST COSTCO WHOLESALE CORPORATION Consumer Defensive 521,277.0 $519.4M 1.49% $996.43 -4.6%
13 MA MASTERCARD INCORPORATED Financial Services 923,405.0 $461.4M 1.32% -32K -3.3% $499.66 -1.9%
14 META META PLATFORMS INC Communication Services 721,720.0 $412.9M 1.18% -14K -2.0% $572.13 +0.6%
15 FAST FASTENAL CO Industrials 7,373,707.0 $342.1M 0.98% +359K +5.1% $46.40 -1.1%
16 RSP INVESCO EXCHANGE TRADED FD T 1,680,604.0 $322.5M 0.92% +1.1M +205.6% $191.92 +9.5%
17 APH AMPHENOL CORP Technology 2,520,319.0 $318.4M 0.91% -134K -5.0% $126.35 +31.0%
18 IVV ISHARES TR 485,839.0 $317.4M 0.91% -3K -0.5% $653.21 +14.8%
19 VEU VANGUARD INTL EQUITY INDEX F 4,168,625.0 $313.1M 0.90% +1.5M +53.7% $75.10 +13.2%
20 LLY ELI LILLY & CO Healthcare 324,018.0 $298.0M 0.85% $919.77 +20.0%
Page 1 of 97  ·  1,922 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 25.5%
Financial Services 17.1%
Industrials 15.0%
Healthcare 12.5%
Consumer Cyclical 8.5%
Communication Services 8.2%
Consumer Defensive 4.8%
Utilities 2.5%
Energy 2.5%
Basic Materials 2.1%