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Asset Manager ← All Institutions

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

150 NORTH RIVERSIDE PLAZA, CHICAGO, IL 60606 • 312-236-1600

Q4 2025 · Filed 2026-02-09
Market Value
$35.4B
-6.8%
Holdings
446
-3
New Purchases
44
Added To
104
Closed
44
Reduced
251
Top 10 Concentration
33.0%
Turnover
19.7%

Top Buys (by % of Portfolio)

SymbolCur %Prior %Chg %Value
GOOGL 2.79% 1.59% +1.20% $988M
ARGX 0.53% 0.00% +0.53% $188M
SNOW 0.84% 0.31% +0.53% $295M
HQY 0.48% 0.00% +0.48% $170M
DCI 0.43% 0.00% +0.43% $151M
TSM 5.14% 4.73% +0.42% $1.8B
AAPL 4.18% 3.77% +0.41% $1.5B
LECO 0.41% 0.00% +0.41% $146M
FFIV 0.40% 0.00% +0.40% $140M
AMD 0.81% 0.45% +0.36% $287M
HALO 0.35% 0.00% +0.35% $124M
OWL 0.32% 0.00% +0.32% $114M
AMZN 2.86% 2.56% +0.31% $1.0B
PEN 0.30% 0.00% +0.30% $108M
MNST 0.82% 0.53% +0.28% $288M

Top Sells (by % of Portfolio)

SymbolCur %Prior %Chg %Value
SE 0.86% 1.63% -0.78% $302M
UBER 0.01% 0.68% -0.67% $4M
LYV 0.00% 0.60% -0.60% $0
LRCX 0.05% 0.65% -0.60% $19M
LRN 0.00% 0.59% -0.59% $0
RY 0.01% 0.56% -0.55% $2M
MELI 0.94% 1.42% -0.47% $334M
MSFT 4.77% 5.24% -0.46% $1.7B
CFLT 0.00% 0.45% -0.45% $0
DOCS 0.68% 1.12% -0.44% $242M
EXAS 0.00% 0.37% -0.37% $0
CRM 0.02% 0.35% -0.33% $8M
P 0.71% 1.03% -0.32% $251M
MRCY 0.20% 0.51% -0.30% $72M
RACE 0.22% 0.50% -0.28% $79M

Sector Allocation Over Time

Industry Breakdown

IndustryWeight
Technology 35.9%
Industrials 12.8%
Healthcare 12.8%
Financial Services 11.1%
Consumer Cyclical 9.6%

Market Cap Concentration

TierHoldingsValueWeight
Mega Cap 26 $12.7B 35.9%
Large Cap 163 $12.1B 34.3%
Mid Cap 197 $9.0B 25.6%
Small Cap 56 $1.4B 4.1%
Micro Cap 4 $34M 0.1%

Portfolio Analytics

Avg Market Cap
$106.5B
Median Market Cap
$7.3B
Avg P/E
38.2
Median P/E
24.2
Avg Dividend Yield
0.03%
Avg Beta
1.04
# Stocks
439
# ETFs / Funds
7

Top Holdings (446 total)

# Symbol % Port Shares Value Avg Price Q/Q Value Chg Share Chg Chg % Status
1 NVDA 5.60% 10,628,667 $2.0B $186.50 -$176M -940,334 -8.1%
2 TSM 5.14% 5,985,330 $1.8B $303.86 $25M -436,828 -6.8%
3 MSFT 4.77% 3,490,302 $1.7B $483.62 -$299M -346,524 -9.0%
4 AAPL 4.18% 5,444,328 $1.5B $271.86 $49M -176,125 -3.1%
5 AMZN 2.86% 4,387,003 $1.0B $230.82 $42M -34,158 -0.8%
6 GOOGL 2.79% 3,154,973 $988M $313.00 $383M +668,971 +26.9%
7 AVGO 2.48% 2,536,611 $878M $346.10 -$49M -274,513 -9.8%
8 META 2.21% 1,186,769 $783M $660.09 -$88M +642 +0.1%
9 MA 1.75% 1,084,947 $619M $570.88 -$9M -20,398 -1.9%
10 CG 1.19% 7,131,902 $422M $59.11 -$127M -1,617,073 -18.5%
11 TRU 0.96% 3,965,495 $340M $85.75 -$52M -713,314 -15.2%
12 MELI 0.94% 165,579 $334M $2,014.26 -$204M -64,225 -27.9%
13 NOW 0.93% 2,148,780 $329M $153.19 -$15M +1,774,770 +474.5%
14 NU 0.89% 18,699,367 $313M $16.74 $2M -750,057 -3.9%
15 SE 0.86% 2,370,876 $302M $127.55 -$317M -1,092,656 -31.6%
16 IDXX 0.84% 441,324 $299M $676.53 $5M -17,695 -3.9%
17 SNOW 0.84% 1,346,998 $295M $219.36 $179M +828,789 +159.9%
18 INTU 0.83% 442,391 $293M $662.42 -$40M -44,841 -9.2%
19 MNST 0.82% 3,761,249 $288M $76.67 $86M +761,531 +25.4%
20 AMD 0.81% 1,339,546 $287M $214.16 $117M +292,346 +27.9%
21 COST 0.80% 328,468 $283M $862.34 -$15M +5,728 +1.8%
22 A 0.79% 2,063,009 $281M $136.07 $6M -81,077 -3.8%
23 LIN 0.78% 643,470 $274M $426.39 $19M +106,059 +19.7%
24 ONTO 0.77% 1,726,587 $273M $157.86 $16M -255,174 -12.9%
25 ORLY 0.77% 2,981,507 $272M $91.21 -$42M +65,833 +2.3%
26 ITUB 0.74% 36,551,763 $262M $7.16 $45M +7,081,568 +24.0%
27 CIEN 0.73% 1,098,593 $257M $233.87 -$99M -1,342,295 -55.0%
28 UNH 0.71% 762,243 $252M $330.11 -$14M -6,292 -0.8%
29 P 0.71% 3,742,928 $251M $67.01 -$140M -923,964 -19.8%
30 ORCL 0.69% 1,256,536 $245M $194.91 -$67M +148,950 +13.4%
31 DOCS 0.68% 5,456,985 $242M $44.28 -$185M -372,184 -6.4%
32 TYL 0.64% 495,297 $225M $453.95 -$15M +36,183 +7.9%
33 BAP 0.62% 767,413 $220M $287.00 $2M -52,660 -6.4%
34 GMED 0.62% 2,519,782 $220M $87.31 $59M -299,383 -10.6%
35 TLN 0.60% 569,399 $213M $374.84 -$76M -110,298 -16.2%
36 INSM 0.60% 1,221,096 $213M $174.04 -$11M -333,961 -21.5%
37 PRMB 0.58% 12,627,420 $206M $16.35 -$55M +793,036 +6.7%
38 MDGL 0.58% 354,220 $206M $582.34 $17M -57,582 -14.0%
39 MLI 0.58% 1,779,906 $204M $114.80 $3M -214,969 -10.8%
40 RE 0.56% 584,301 $198M $339.35 -$30M -67,173 -10.3%
41 VEEV 0.56% 881,223 $197M $223.23 -$26M +132,579 +17.7%
42 QTWO 0.55% 2,694,718 $194M $72.16 $39M +553,713 +25.9%
43 BWXT 0.54% 1,107,600 $191M $172.84 -$40M -147,710 -11.8%
44 TWST 0.53% 5,954,429 $189M $31.72 $72M +1,812,146 +43.8%
45 ARGX 0.53% 223,666 $188M $840.86 +223,666 NEW
46 BRP 0.51% 7,543,813 $181M $24.03 $37M +2,439,118 +47.8%
47 CCJ 0.51% 1,980,827 $181M $91.49 -$40M -657,206 -24.9%
48 BCO 0.51% 1,544,641 $180M $116.73 -$27M -225,226 -12.7%
49 CPRT 0.51% 4,585,833 $180M $39.15 -$30M -65,641 -1.4%
50 WAY 0.49% 5,282,220 $173M $32.75 -$27M +19,033 +0.4%
51 HQY 0.48% 1,855,208 $170M $91.61 +1,855,208 NEW
52 MLM 0.48% 270,203 $168M $622.66 -$7M -7,153 -2.6%
53 COHR 0.46% 873,060 $161M $184.57 $14M -491,957 -36.0%
54 PLNT 0.45% 1,459,295 $158M $108.47 -$7M -134,612 -8.4%
55 LSCC 0.44% 2,125,260 $156M $73.58 $54M +731,568 +52.5%
56 CW 0.43% 277,837 $153M $551.27 -$15M -32,255 -10.4%
57 DCI 0.43% 1,707,872 $151M $88.66 $151M +1,701,387 +26235.7%
58 FOLD 0.43% 10,627,717 $151M $14.24 $27M -5,121,523 -32.5%
59 APPF 0.42% 638,241 $148M $232.65 -$4M +86,272 +15.6%
60 CHE 0.42% 344,807 $148M $427.86 -$25M -40,317 -10.5%
61 LECO 0.41% 609,812 $146M $239.64 +609,812 NEW
62 WAL 0.41% 1,711,503 $144M $84.07 -$64M -683,219 -28.5%
63 CWST 0.41% 1,468,206 $144M $97.94 -$28M -341,661 -18.9%
64 CAVA 0.40% 2,419,247 $142M $58.69 $28M +530,524 +28.1%
65 CWAN 0.40% 5,880,506 $142M $24.12 -$13M -2,695,866 -31.4%
66 TECH 0.40% 2,398,265 $141M $58.81 $46M +688,603 +40.3%
67 FFIV 0.40% 550,264 $140M $255.26 +550,264 NEW
68 NVT 0.40% 1,375,159 $140M $101.97 -$97M -1,025,220 -42.7%
69 DT 0.39% 3,215,853 $139M $43.34 -$25M -181,985 -5.4%
70 SN 0.39% 1,236,321 $138M $111.90 -$4M -145,130 -10.5%
71 ONB 0.38% 5,957,936 $133M $22.31 $4M +88,096 +1.5%
72 TER 0.37% 684,578 $133M $193.56 $26M -90,885 -11.7%
73 CRS 0.37% 417,559 $131M $314.84 $17M -48,685 -10.4%
74 CHDN 0.37% 1,145,413 $130M $113.78 $32M +127,687 +12.6%
75 SPOT 0.36% 221,748 $129M $580.71 -$68M -60,576 -21.5%
76 FHN 0.36% 5,336,021 $128M $23.90 $10M +116,191 +2.2%
77 GKOS 0.35% 1,106,918 $125M $112.91 $36M +13,174 +1.2%
78 HALO 0.35% 1,842,956 $124M $67.30 +1,842,956 NEW
79 CMG 0.35% 3,313,041 $123M $37.00 -$74M -1,710,662 -34.0%
80 FRPT 0.34% 1,952,767 $119M $60.93 $37M +461,444 +30.9%
81 POOL 0.34% 519,836 $119M $228.75 -$53M -35,394 -6.4%
82 NXT 0.34% 1,362,794 $119M $87.11 $10M -106,844 -7.3%
83 EYE 0.33% 4,510,895 $116M $25.82 -$25M -329,578 -6.8%
84 EXP 0.33% 558,744 $115M $206.68 -$28M -56,506 -9.2%
85 BFAM 0.32% 1,129,039 $114M $101.40 -$23M -136,079 -10.8%
86 MANH 0.32% 660,294 $114M $173.31 -$39M -87,634 -11.7%
87 OWL 0.32% 7,615,956 $114M $14.94 +7,615,956 NEW
88 GRAB 0.32% 22,676,283 $113M $4.99 -$33M -1,588,265 -6.5%
89 EVR 0.32% 331,027 $113M $340.25 -$13M -42,121 -11.3%
90 EXLS 0.31% 2,584,072 $110M $42.44 -$18M -313,016 -10.8%
91 NOVT 0.31% 908,906 $108M $118.99 $12M -51,667 -5.4%
92 PEN 0.30% 345,974 $108M $310.91 +345,974 NEW
93 INSP 0.30% 1,161,285 $107M $92.23 $11M -136,288 -10.5%
94 RRX 0.30% 759,283 $107M $140.32 $49M +356,279 +88.4%
95 GTX 0.30% 6,059,287 $106M $17.43 $524K -1,656,537 -21.5%
96 WGS 0.30% 809,210 $105M $130.06 -$26M -410,928 -33.7%
97 CART 0.28% 2,220,018 $100M $44.98 -$17M -957,810 -30.1%
98 BSY 0.28% 2,615,173 $100M $38.17 -$51M -316,123 -10.8%
99 WMS 0.28% 688,047 $100M $144.83 -$14M -132,156 -16.1%
100 EHC 0.27% 915,920 $97M $106.14 -$5M +112,637 +14.0%

New Positions

SymbolValue% Port
ARGX $188M 0.53%
HQY $170M 0.48%
LECO $146M 0.41%
FFIV $140M 0.40%
HALO $124M 0.35%
OWL $114M 0.32%
PEN $108M 0.30%
VRSK $89M 0.25%
CHRW $70M 0.20%
OSIS $49M 0.14%
LTM $38M 0.11%
LB $34M 0.10%
SLVM $34M 0.10%
BE $30M 0.09%
ESNT $28M 0.08%

Sold Out Positions

SymbolValue% Port
LYV —%
FLR —%
HPE —%
PSX —%
CBZ —%
VICI —%
MUSA —%
HIMS —%
ZIP —%
AJG —%
BV —%
EVH —%
LXP —%
HIG —%
MTG —%
View SEC EDGAR Filings for WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC →

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms