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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
+13.19%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$38.7B
AUM Growth
+$4.32B
Cap. Flow
+$897M
Cap. Flow %
2.32%
Top 10 Hldgs %
24.36%
Holding
434
New
28
Increased
188
Reduced
193
Closed
24

Top Buys

Rank Stock Value
1
ACN icon
Accenture
ACN
+$171M
2
MSFT icon
Microsoft
MSFT
+$164M
3
DOCS icon
Doximity
DOCS
+$158M
4
SHOP icon
Shopify
SHOP
+$150M
5
ITUB icon
Itaú Unibanco
ITUB
+$148M

Top Sells

Rank Stock Value
1
SMCI icon
Super Micro Computer
SMCI
+$223M
2
TSM icon
TSMC
TSM
+$214M
3
TD icon
Toronto Dominion Bank
TD
+$175M
4
ELF icon
e.l.f. Beauty
ELF
+$93.6M
5
FTI icon
TechnipFMC
FTI
+$86.4M

Sector Composition

Rank Sector Weight
1 Technology 29.65%
2 Consumer Discretionary 14.83%
3 Healthcare 14.07%
4 Industrials 13.15%
5 Financials 9.08%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
INSM icon
101
Insmed
INSM
$28.9B
$114M 0.3%
4,214,719
-41,968
-1% -$1.17M
SHLS icon
102
Shoals Technologies Group
SHLS
$1.39B
$114M 0.3%
10,221,644
+4,263,964
+72% +$58.6M
LRN icon
103
Stride
LRN
$3.27B
$111M 0.29%
+1,766,488
New +$107M
EXLS icon
104
EXL Service
EXLS
$5.24B
$111M 0.29%
3,479,922
-131,180
-4% -$4.08M
SPSC icon
105
SPS Commerce
SPSC
$2.7B
$111M 0.29%
597,662
+17,012
+3% +$3.14M
RVLV icon
106
Revolve Group
RVLV
$1.68B
$110M 0.28%
5,198,768
-116,315
-2% -$2.04M
HEI.A icon
107
HEICO Corp Class A
HEI.A
$37.8B
$108M 0.28%
702,752
-374,550
-35% -$55.4M
BURL icon
108
Burlington
BURL
$22.1B
$107M 0.28%
459,550
-7,571
-2% -$1.54M
WSC icon
109
WillScot Mobile Mini Holdings
WSC
$4.08B
$106M 0.28%
2,288,456
-96,314
-4% -$4.48M
SBUX icon
110
Starbucks
SBUX
$123B
$105M 0.27%
1,149,338
-129,412
-10% -$12M
GLOB icon
111
Globant
GLOB
$1.65B
$104M 0.27%
515,318
-48,607
-9% -$10.9M
VRNS icon
112
Varonis Systems
VRNS
$4.81B
$104M 0.27%
2,194,736
-1,054,509
-32% -$50.2M
ENTG icon
113
Entegris
ENTG
$24.6B
$103M 0.27%
732,330
-240,425
-25% -$30.7M
CERT icon
114
Certara
CERT
$1.23B
$102M 0.26%
5,719,790
-1,322,526
-19% -$22.8M
SKY icon
115
Champion Homes
SKY
$5.05B
$102M 0.26%
1,194,576
-37,948
-3% -$2.93M
EEFT icon
116
Euronet Worldwide
EEFT
$2.63B
$99.9M 0.26%
908,802
-20,495
-2% -$2.15M
META icon
117
Meta Platforms (Facebook)
META
$1.48T
$99M 0.26%
203,931
+2,331
+1% +$1.04M
CRL icon
118
Charles River Laboratories
CRL
$13.7B
$98.8M 0.26%
364,614
-5,989
-2% -$1.43M
PCOR icon
119
Procore
PCOR
$8.73B
$91.2M 0.24%
+1,109,382
New +$82.4M
ACVA icon
120
ACV Auctions
ACVA
$1.37B
$90.4M 0.23%
4,815,414
-72,995
-1% -$1.14M
SITE icon
121
SiteOne Landscape Supply
SITE
$4.24B
$89.7M 0.23%
513,623
-8,386
-2% -$1.38M
CNI icon
122
Canadian National Railway
CNI
$76.3B
$89.5M 0.23%
679,549
-27,287
-4% -$3.49M
VRRM icon
123
Verra Mobility
VRRM
$715M
$85.7M 0.22%
3,432,751
-349,716
-9% -$7.96M
HQY icon
124
HealthEquity
HQY
$8.85B
$85.3M 0.22%
1,044,426
-738,485
-41% -$57.7M
BWIN
125
Baldwin Insurance Group
BWIN
$2.99B
$84.7M 0.22%
2,925,650
+2,718,869
+1,315% +$71.4M
3 4
5
6 7

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William Blair Investment Management's Q1 2024 Portfolio in Review

As of Q1 2024, William Blair Investment Management held 434 positions worth $38.7B, up 13% from $34.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair Investment Management's Q1 2024 filing shows 28 new, 188 increased, 193 reduced and 24 closed positions. Its largest new stake was Doximity: 5,530,386 shares worth $149M. The largest sale was Super Micro Computer, an estimated $223M.

By sector, the portfolio is most concentrated in Technology at 30% of assets, up from 27% a quarter earlier, followed by Consumer Discretionary and Healthcare.

  • William Blair Investment Management's largest Q1 2024 buy was Doximity: 5,530,386 shares worth $149M.
  • William Blair Investment Management added most to Accenture in Q1 2024, an estimated $171M increase.
  • William Blair Investment Management's biggest Q1 2024 reduction was Super Micro Computer, cutting an estimated $223M.
  • William Blair Investment Management fully exited Toronto Dominion Bank in Q1 2024, selling an estimated $175M.
  • William Blair Investment Management's ten largest holdings make up 24% of its $38.7B portfolio in Q1 2024.
  • William Blair Investment Management opened 28 new positions and closed 24 in Q1 2024.
  • William Blair Investment Management's portfolio value rose 13% quarter-over-quarter to $38.7B.

Based on William Blair Investment Management's 13F filing for Q1 2024, filed 8 May 2024.