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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 8  ·  155 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
1 AZN ASTRAZENECA PLC Healthcare 100,622.0 $19.8M 0.06% NEW $197.22 -11.3%
2 SIMO SILICON MOTION TECHNOLOGY CO Technology 103,179.0 $11.6M 0.03% NEW $112.29 +186.5%
3 GH GUARDANT HEALTH INC Healthcare 103,644.0 $9.6M 0.03% NEW $92.37 +42.7%
4 SOLID BIOSCIENCES INC 651,216.0 $4.7M 0.01% NEW $7.20
5 RYN RAYONIER INC Real Estate 130,939.0 $2.7M 0.01% NEW $20.62 +1.7%
6 EXPO EXPONENT INC Industrials 28,806.0 $1.9M 0.01% NEW $65.25 -12.8%
7 RLI RLI CORP Financial Services 31,573.0 $1.8M 0.01% NEW $57.04 -6.9%
8 ICFI ICF INTL INC Industrials 23,784.0 $1.6M 0.00% NEW $65.29 +1.9%
9 BLDR BUILDERS FIRSTSOURCE INC Industrials 13,450.0 $1.1M 0.00% NEW $82.33 -2.1%
10 SUNB SUNBELT RENTALS HOLDINGS INC Financial Services 16,200.0 $1.1M 0.00% NEW $65.09 +32.2%
11 PINE ALPINE INCOME PPTY TR INC Real Estate 57,515.0 $1.0M 0.00% NEW $18.00 +6.3%
12 DFTX DEFINIUM THERAPEUTICS INC Healthcare 53,695.0 $1.0M 0.00% NEW $18.90 +29.5%
13 AOM ISHARES TR 20,981.0 $994K 0.00% NEW $47.37 +5.5%
14 MANU MANCHESTER UTD PLC NEW Communication Services 57,456.0 $966K 0.00% NEW $16.82 +33.0%
15 DIOD DIODES INC Technology 14,005.0 $956K 0.00% NEW $68.26 +75.0%
16 ATLANTA BRAVES HLDGS INC 19,604.0 $924K 0.00% NEW $47.15
17 MACH NATURAL RESOURCES LP 62,429.0 $874K 0.00% NEW $14.00
18 AR ANTERO RESOURCES CORP Energy 19,020.0 $807K 0.00% NEW $42.44 -21.7%
19 NOG NORTHERN OIL & GAS INC Energy 27,380.0 $800K 0.00% NEW $29.23 -33.5%
20 CRL CHARLES RIV LABS INTL INC Healthcare 4,575.0 $789K 0.00% NEW $172.48 +7.3%
Page 1 of 8  ·  155 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%