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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 +18.6%
122 FLS FLOWSERVE CORP Industrials 1,048,137.0 $72.7M 0.20% NEW $69.38 +4.3%
123 GWRE GUIDEWIRE SOFTWARE INC Technology 358,328.0 $72.0M 0.20% NEW $201.01 -36.5%
124 MRCY MERCURY SYS INC Industrials 984,273.0 $71.9M 0.20% NEW $73.01 +68.5%
125 CHRW C H ROBINSON WORLDWIDE INC Industrials 437,501.0 $70.3M 0.20% NEW $160.76 +19.0%
126 PWP PERELLA WEINBERG PARTNERS Financial Services 3,946,163.0 $68.3M 0.19% NEW $17.30 -6.8%
127 AGYS AGILYSYS INC Technology 572,600.0 $68.0M 0.19% NEW $118.84 -8.4%
128 LPX LOUISIANA PAC CORP Basic Materials 829,439.0 $67.0M 0.19% NEW $80.76 -2.6%
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 -23.0%
131 KWR QUAKER HOUGHTON Basic Materials 469,981.0 $64.5M 0.18% NEW $137.31 +17.4%
132 TME TENCENT MUSIC ENTMT GROUP Communication Services 3,592,177.0 $63.0M 0.18% NEW $17.53 -50.6%
133 BRBR BELLRING BRANDS INC Consumer Defensive 2,228,300.0 $59.6M 0.17% NEW $26.73 -50.1%
134 ACGL ARCH CAP GROUP LTD Financial Services 588,845.0 $56.5M 0.16% NEW $95.92 +2.7%
135 IWF ISHARES TR 111,339.0 $52.7M 0.15% NEW $473.30 -74.0%
136 LITE LUMENTUM HLDGS INC Technology 139,703.0 $51.5M 0.14% NEW $368.59 +117.4%
137 MOD MODINE MFG CO Consumer Cyclical 382,915.0 $51.1M 0.14% NEW $133.51 +83.1%
138 WSC WILLSCOT HLDGS CORP Industrials 2,649,427.0 $49.9M 0.14% NEW $18.83 +53.3%
139 WFRD WEATHERFORD INTL PLC Energy 635,479.0 $49.7M 0.14% NEW $78.26 +4.1%
140 RSI RUSH STREET INTERACTIVE INC Consumer Cyclical 2,557,778.0 $49.7M 0.14% NEW $19.43 +60.9%
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 39.2%
Healthcare 12.0%
Consumer Cyclical 11.0%
Industrials 10.7%
Financial Services 10.4%
Communication Services 5.8%
Consumer Defensive 4.0%
Basic Materials 3.1%
Real Estate 1.4%
Energy 1.2%