FundWatcher
WSMRX
William Blair Small-Mid Cap Growth Fund
WILLIAM BLAIR FUNDS

Portfolio moves

Net position changes between two of this fund's N-PORT snapshots. These are differences between point-in-time reports — not a trade log — and share counts can be affected by splits and other corporate actions.

Dec 31, 2025 → Mar 31, 2026

Expand a category to see the positions behind it, ranked by weight.

Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
AKAMAI TECHNOLOGIES INC 0 196,800 196,800 2.01% $22.60M
FIXED INC CLEARING CORP.REPO 0 16,467,704 16,467,704 1.46% $16.47M
GRAND CANYON EDUCATION INC 0 85,200 85,200 1.29% $14.49M
BORGWARNER INC 0 262,697 262,697 1.27% $14.25M
STERLING INFRASTRUCTURE INC 0 34,700 34,700 1.25% $14.13M
GUARDANT HEALTH INC 0 139,700 139,700 1.15% $12.90M
CULLEN FROST BANKERS INC 0 89,500 89,500 1.09% $12.27M
POWER INTEGRATIONS INC 0 220,514 220,514 1.00% $11.29M
BIRKENSTOCK HOLDING LTD 0 309,300 309,300 0.98% $11.08M
SYNAPTICS INC 0 157,600 157,600 0.98% $11.04M
KENNAMETAL INC 0 298,400 298,400 0.96% $10.78M
STEPSTONE GROUP INC CLASS A 0 199,666 199,666 0.85% $9.53M
LITTELFUSE INC 0 26,900 26,900 0.81% $9.13M
SAIA INC 0 25,000 25,000 0.78% $8.78M
API GROUP CORP 0 209,100 209,100 0.75% $8.47M
ALIGNMENT HEALTHCARE INC 0 420,600 420,600 0.66% $7.41M
CYTOKINETICS INC 0 108,500 108,500 0.63% $7.15M
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
TERADYNE INC 105,900 0 -105,900 0.00% -$20.50M
AMICUS THERAPEUTICS INC 1,405,500 0 -1,405,500 0.00% -$20.01M
Q2 HOLDINGS INC 273,700 0 -273,700 0.00% -$19.75M
CHEMED CORP 39,866 0 -39,866 0.00% -$17.06M
WAYSTAR HOLDING CORP 518,085 0 -518,085 0.00% -$16.97M
PENUMBRA INC 53,600 0 -53,600 0.00% -$16.66M
BRINK'S CO/THE 134,338 0 -134,338 0.00% -$15.68M
CLEARWATER ANALYTICS HOLDINGS INC 588,669 0 -588,669 0.00% -$14.20M
EXLSERVICE HOLDINGS INC 327,500 0 -327,500 0.00% -$13.90M
FIXED INC CLEARING CORP.REPO 11,637,916 0 -11,637,916 0.00% -$11.64M
MARZETTI COMPANY/THE 67,816 0 -67,816 0.00% -$11.15M
WESTERN ALLIANCE BANCORP 132,472 0 -132,472 0.00% -$11.14M
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
PRIMO BRANDS CORP A 1,270,043 1,328,343 58,300 2.22% $4.25M
F5 INC 63,644 78,244 14,600 2.01% $6.39M
NEXTRACKER INC CL A 157,300 184,900 27,600 1.98% $8.59M
CLEAN HARBORS INC 52,500 65,100 12,600 1.66% $6.36M
HALOZYME THERAPEUTICS INC 174,200 244,400 70,200 1.40% $4.07M
BIO-TECHNE CORP 264,200 298,700 34,500 1.39% $72.46K
BENTLEY SYSTEM-B 329,100 443,300 114,200 1.38% $3.01M
RELIANCE STEEL and ALUMINUM CO 42,700 48,300 5,600 1.30% $2.34M
DYNATRACE INC 358,286 386,586 28,300 1.27% -$1.23M
KRYSTAL BIOTECH INC 34,907 36,000 1,093 0.83% $693.55K
Landbridge Company, LLC 106,797 130,297 23,500 0.80% $3.77M
BELLRING BRANDS INC 344,700 445,200 100,500 0.64% -$2.05M
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
TWIST BIOSCIENCE CORP 566,173 512,073 -54,100 2.16% $6.37M
LATTICE SEMICONDUCTOR CORP 283,785 256,685 -27,100 2.11% $2.93M
BWX TECHNOLOGIES INC 124,749 112,849 -11,900 2.05% $1.51M
MUELLER INDUSTRIES INC 225,700 204,200 -21,500 2.01% -$3.28M
ONTO INNOVATION INC 178,466 108,666 -69,800 1.98% -$5.89M
INSMED INC 188,851 132,551 -56,300 1.92% -$11.19M
TALEN ENERGY CORP 73,500 66,500 -7,000 1.88% -$6.32M
MADRIGAL PHARMACEUTICALS INC 42,700 38,600 -4,100 1.79% -$4.66M
PURE STORAGE INC CL A 460,900 342,100 -118,800 1.79% -$10.69M
CURTISS WRIGHT CORPORATION 32,200 29,100 -3,100 1.76% $2.07M
EVEREST REINSURANCE GROUP LTD 65,432 59,132 -6,300 1.72% -$2.88M
COHERENT CORP 105,300 80,600 -24,700 1.70% -$235.50K
NVENT ELECTRIC PLC 175,900 159,100 -16,800 1.67% $881.82K
GLOBUS MEDICAL INC 309,495 217,495 -92,000 1.66% -$8.28M
CAMECO CORP 238,388 172,388 -66,000 1.66% -$3.09M
CIENA CORP 133,900 44,500 -89,400 1.53% -$14.04M
CARPENTER TECHNOLOGY CORP 48,100 43,500 -4,600 1.52% $2.00M
FIRST HORIZON CORP 825,300 746,500 -78,800 1.51% -$2.73M
DONALDSON CO INC 202,600 195,700 -6,900 1.47% -$1.35M
LINCOLN ELECTRIC HLDGS INC 71,000 64,200 -6,800 1.42% -$1.02M
CARLYLE GROUP INC (THE) 350,993 317,493 -33,500 1.36% -$5.38M
CHURCHILL DOWNS INC 182,300 164,900 -17,400 1.32% -$5.93M
REGAL REXNORD CORP 81,500 73,700 -7,800 1.23% $2.36M
SHARKNINJA INC 142,000 128,500 -13,500 1.21% -$2.28M
BRP GROUP INC-A 667,210 603,410 -63,800 1.18% -$2.79M
ADVANCED DRAINAGE SYSTEMS INC 106,400 96,200 -10,200 1.17% -$2.22M
HEALTHEQUITY INC 173,300 156,800 -16,500 1.16% -$2.77M
MANHATTAN ASSOCIATES INC 102,100 92,400 -9,700 1.09% -$5.39M
PLANET FITNESS INC CL A 182,800 165,300 -17,500 1.09% -$7.53M
GLAUKOS CORP 126,200 114,100 -12,100 1.09% -$1.97M
CAVA GROUP INC 163,200 147,600 -15,600 1.06% $2.36M
PARSONS CORP 241,400 218,300 -23,100 1.05% -$3.09M
EAGLE MATERIALS INC 67,687 61,187 -6,500 1.03% -$2.40M
DOXIMITY INC-A 549,752 497,252 -52,500 1.03% -$12.76M
POOL CORP 60,200 54,400 -5,800 0.98% -$2.76M
EVERCORE INC A 48,100 35,200 -12,900 0.93% -$5.86M
APPFOLIO INC - A 73,246 66,246 -7,000 0.93% -$6.59M
BRIGHT HORIZONS FAMILY SOLUTIONS INC 140,678 127,178 -13,500 0.93% -$3.82M
FRESHPET INC 185,879 168,079 -17,800 0.88% -$1.42M
CASELLA WASTE SYS INC CL A 133,361 120,661 -12,700 0.85% -$3.49M
NATIONAL VISION HOLDINGS INC 404,400 365,700 -38,700 0.84% -$969.98K
ENCOMPASS HEALTH CORP 108,217 97,917 -10,300 0.84% -$2.01M
NOVANTA INC 82,354 74,454 -7,900 0.78% -$1.01M
MAPLEBEAR INC 255,226 230,826 -24,400 0.77% -$2.83M
TRANSUNION 125,700 113,700 -12,000 0.70% -$2.91M
GUIDEWIRE SOFTWARE INC 55,455 50,155 -5,300 0.67% -$3.65M
FIRSTSERVICE-WI 52,835 47,835 -5,000 0.59% -$1.57M
TPG INC 221,924 163,324 -58,600 0.59% -$7.55M
LOUISIANA PACIFIC CORP 96,400 87,200 -9,200 0.56% -$1.44M
INSPIRE MEDICAL SYSTEMS INC 120,900 109,400 -11,500 0.50% -$5.51M
WILLSCOT MOBILE MINI HOLDINGS CORP 409,500 286,848 -122,652 0.44% -$2.73M
GENEDX HOLDINGS CORP-A 81,018 73,218 -7,800 0.42% -$5.84M
INSULET CORP 22,465 20,365 -2,100 0.38% -$2.11M
ACV AUCTIONS INC CL A 786,082 639,781 -146,301 0.24% -$3.59M
Security Shares Dec 2025 Shares Mar 2026 Δ shares End % Δ value
SAPIENCE WARRANTS 08/23/2027 80,133 80,133 0 0.00% $0

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