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Portfolio (Quarterly) Guide ↗

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

· CIK 0001644956
13F Portfolio $30.3B AUM 413 positions Filed May 8, 2026 EDGAR ↗ ← All Funds
Q1 2026 Q4 2025 · All 47 New 150 Added 201 Reduced 47 Exited
Page 2 of 21  ·  413 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
21 AMD ADVANCED MICRO DEVICES INC Technology 1,042,594.0 $212.1M 0.70% -297K -22.2% $203.43 +141.4%
22 BAP CREDICORP LTD Financial Services 622,690.0 $211.2M 0.70% -145K -18.9% $339.18 -9.9%
23 A AGILENT TECHNOLOGIES INC Healthcare 1,795,764.0 $204.7M 0.68% -267K -12.9% $113.98 +17.1%
24 ORLY OREILLY AUTOMOTIVE INC Consumer Cyclical 2,210,034.0 $204.0M 0.67% -771K -25.9% $92.31 -3.3%
25 BWXT BWX TECHNOLOGIES INC Industrials 981,782.0 $200.8M 0.66% -126K -11.4% $204.49 -8.0%
26 TRU TRANSUNION Industrials 2,891,187.0 $200.0M 0.66% -1.1M -27.1% $69.19 +0.5%
27 ONTO ONTO INNOVATION INC Technology 964,213.0 $197.7M 0.65% -762K -44.1% $205.07 +32.1%
28 IDXX IDEXX LABS INC Healthcare 351,621.0 $197.6M 0.65% -90K -20.3% $561.89 +0.2%
29 NXT NEXTPOWER INC Technology 1,622,489.0 $195.6M 0.65% +260K +19.1% $120.55 +8.8%
30 ARGX ARGENX SE Healthcare 266,067.0 $194.4M 0.64% +42K +19.0% $730.51 +20.0%
31 CAVA CAVA GROUP INC Consumer Cyclical 2,393,971.0 $193.7M 0.64% -25K -1.0% $80.90 -8.0%
32 LSCC LATTICE SEMICONDUCTOR CORP Technology 2,043,720.0 $189.6M 0.63% -82K -3.8% $92.76 +52.7%
33 FFIV F5 INC Technology 649,948.0 $188.0M 0.62% +100K +18.1% $289.33 +38.4%
34 AKAM AKAMAI TECHNOLOGIES INC Technology 1,619,060.0 $185.9M 0.61% NEW $114.85 +24.7%
35 CCJ CAMECO CORP Energy 1,682,303.0 $182.7M 0.60% -299K -15.1% $108.61 -2.2%
36 UNH UNITEDHEALTH GROUP INC Healthcare 673,263.0 $182.2M 0.60% -89K -11.7% $270.59 +49.3%
37 MDGL MADRIGAL PHARMACEUTICALS INC Healthcare 340,519.0 $178.3M 0.59% -14K -3.9% $523.47 -10.0%
38 NU NU HLDGS LTD Financial Services 12,267,600.0 $176.3M 0.58% -6.4M -34.4% $14.37 -19.1%
39 GLOBUS MED INC 2,009,763.0 $173.2M 0.57% -510K -20.2% $86.16
40 CHRW C H ROBINSON WORLDWIDE IN Industrials 1,041,658.0 $173.0M 0.57% +604K +138.1% $166.07 +13.2%
Page 2 of 21  ·  413 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 36.8%
Industrials 12.9%
Healthcare 12.5%
Consumer Cyclical 9.9%
Financial Services 9.9%
Communication Services 5.1%
Consumer Defensive 4.4%
Basic Materials 4.3%
Energy 1.8%
Real Estate 1.3%