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Portfolio (Quarterly) Guide ↗

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

· CIK 0001644956
13F Portfolio $35.9B AUM Filed Feb 9, 2026 EDGAR ↗ ← All Funds
Q1 2026 Q4 2025 · All 413 New
Page 7 of 21  ·  413 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
121 IDA IDACORP INC Utilities 576,077.0 $72.9M 0.20% NEW $126.56 +16.2%
122 FLS FLOWSERVE CORP Industrials 1,048,137.0 $72.7M 0.20% NEW $69.38 -3.8%
123 GWRE GUIDEWIRE SOFTWARE INC Technology 358,328.0 $72.0M 0.20% NEW $201.01 -25.8%
124 MRCY MERCURY SYS INC Industrials 984,273.0 $71.9M 0.20% NEW $73.01 +29.7%
125 CHRW C H ROBINSON WORLDWIDE INC Industrials 437,501.0 $70.3M 0.20% NEW $160.76 +28.0%
126 PWP PERELLA WEINBERG PARTNERS Financial Services 3,946,163.0 $68.3M 0.19% NEW $17.30 -9.1%
127 AGYS AGILYSYS INC Technology 572,600.0 $68.0M 0.19% NEW $118.84 -10.6%
128 LPX LOUISIANA PAC CORP Basic Materials 829,439.0 $67.0M 0.19% NEW $80.76 -11.7%
129 MAREX GROUP PLC 1,738,927.0 $66.7M 0.19% NEW $38.36
130 RVLV REVOLVE GROUP INC Consumer Cyclical 2,148,125.0 $64.9M 0.18% NEW $30.19 -13.8%
131 KWR QUAKER HOUGHTON Basic Materials 469,981.0 $64.5M 0.18% NEW $137.31 +7.8%
132 TME TENCENT MUSIC ENTMT GROUP Communication Services 3,592,177.0 $63.0M 0.18% NEW $17.53 -47.7%
133 BRBR BELLRING BRANDS INC Consumer Defensive 2,228,300.0 $59.6M 0.17% NEW $26.73 -54.5%
134 ACGL ARCH CAP GROUP LTD Financial Services 588,845.0 $56.5M 0.16% NEW $95.92 +6.2%
135 IWF ISHARES TR 111,339.0 $52.7M 0.15% NEW $473.30 -74.8%
136 LITE LUMENTUM HLDGS INC Technology 139,703.0 $51.5M 0.14% NEW $368.59 +107.7%
137 MOD MODINE MFG CO Consumer Cyclical 382,915.0 $51.1M 0.14% NEW $133.51 +70.7%
138 WSC WILLSCOT HLDGS CORP Industrials 2,649,427.0 $49.9M 0.14% NEW $18.83 +44.6%
139 WFRD WEATHERFORD INTL PLC Energy 635,479.0 $49.7M 0.14% NEW $78.26 +3.1%
140 RSI RUSH STREET INTERACTIVE INC Consumer Cyclical 2,557,778.0 $49.7M 0.14% NEW $19.43 +77.7%
Page 7 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 38.7%
Healthcare 12.1%
Consumer Cyclical 11.1%
Industrials 10.8%
Financial Services 10.5%
Communication Services 5.9%
Consumer Defensive 4.0%
Basic Materials 3.1%
Real Estate 1.4%
Energy 1.2%