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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
+10.03%
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
$26.1B
AUM Growth
+$841M
Cap. Flow
-$982M
Cap. Flow %
-3.76%
Top 10 Hldgs %
17.15%
Holding
419
New
32
Increased
142
Reduced
225
Closed
18

Top Buys

Rank Stock Value
1
MZTI
The Marzetti Company
MZTI
+$142M
2
AMBA icon
Ambarella
AMBA
+$92.4M
3
G icon
Genpact
G
+$92.1M
4
CMG icon
Chipotle Mexican Grill
CMG
+$83.1M
5
CG icon
Carlyle Group
CG
+$81.2M

Top Sells

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$241M
2
HZNP
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
+$155M
3
DEN
Denbury Inc.
DEN
+$144M
4
RBA icon
RB Global
RBA
+$101M
5
CABO icon
Cable One
CABO
+$88.8M

Sector Composition

Rank Sector Weight
1 Technology 22.72%
2 Healthcare 17.24%
3 Industrials 15.95%
4 Consumer Discretionary 14.35%
5 Financials 11.06%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
KRG icon
126
Kite Realty
KRG
$5.27B
$44.6M 0.17%
2,119,924
-79,551
-4% -$1.62M
LRCX icon
127
Lam Research
LRCX
$408B
$44.6M 0.17%
1,060,610
+47,600
+5% +$1.99M
WDAY icon
128
Workday
WDAY
$43.3B
$44.6M 0.17%
266,339
-86,582
-25% -$13.5M
TEX icon
129
Terex
TEX
$7.8B
$43.9M 0.17%
1,027,098
-38,729
-4% -$1.56M
PRGS icon
130
Progress Software
PRGS
$1.79B
$43.8M 0.17%
867,291
-32,708
-4% -$1.63M
WTFC icon
131
Wintrust Financial
WTFC
$11B
$43.3M 0.17%
511,763
+20,154
+4% +$1.78M
GPRE icon
132
Green Plains
GPRE
$1.06B
$42.1M 0.16%
1,381,190
+28,388
+2% +$875K
CBZ icon
133
CBIZ
CBZ
$2.96B
$41.3M 0.16%
881,505
-30,513
-3% -$1.45M
TCBI icon
134
Texas Capital Bancshares
TCBI
$4.38B
$41.2M 0.16%
682,688
-26,365
-4% -$1.56M
ITGR icon
135
Integer Holdings
ITGR
$4.25B
$40.9M 0.16%
597,349
+157,100
+36% +$10.3M
SKY icon
136
Champion Homes
SKY
$5.1B
$40.4M 0.15%
785,136
+130,338
+20% +$6.94M
ONB icon
137
Old National Bancorp
ONB
$10.4B
$40.4M 0.15%
2,244,805
-84,617
-4% -$1.55M
ABCB icon
138
Ameris Bancorp
ABCB
$5.94B
$40.2M 0.15%
852,005
-32,365
-4% -$1.62M
KN icon
139
Knowles
KN
$3.33B
$39.6M 0.15%
2,411,008
+207,677
+9% +$3.01M
NTCT icon
140
NETSCOUT
NTCT
$2.87B
$39.4M 0.15%
1,211,671
-45,644
-4% -$1.58M
URBN icon
141
Urban Outfitters
URBN
$6.63B
$39.3M 0.15%
1,647,325
-61,822
-4% -$1.54M
GVA icon
142
Granite Construction
GVA
$5.52B
$39.3M 0.15%
1,119,263
-41,898
-4% -$1.37M
ABM icon
143
ABM Industries
ABM
$2.84B
$39.3M 0.15%
883,625
-33,415
-4% -$1.47M
NEE icon
144
NextEra Energy
NEE
$179B
$38.7M 0.15%
462,413
-154,756
-25% -$12.5M
PRAA icon
145
PRA Group
PRAA
$737M
$38.6M 0.15%
1,142,979
+65,253
+6% +$2.15M
ICE icon
146
Intercontinental Exchange
ICE
$85B
$37.4M 0.14%
364,191
-92,829
-20% -$9.24M
EFSC icon
147
Enterprise Financial Services Corp
EFSC
$2.41B
$36.9M 0.14%
753,574
-28,472
-4% -$1.41M
CRI icon
148
Carter's
CRI
$1.43B
$36.6M 0.14%
491,155
+48,003
+11% +$3.44M
FRME icon
149
First Merchants
FRME
$2.72B
$36.6M 0.14%
889,864
-33,822
-4% -$1.43M
XPRO icon
150
Expro Ltd
XPRO
$2.07B
$36.5M 0.14%
2,012,439
-257,799
-11% -$4.37M
4 5
6
7 8

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William Blair Investment Management's Q4 2022 Portfolio in Review

As of Q4 2022, William Blair Investment Management held 419 positions worth $26.1B, up 3.3% from $25.3B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management withdrew a net $982M in Q4 2022, closing 18 positions and reducing 225 holdings. Its most notable exit was Abiomed Inc, an estimated $241M position sold in full.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 23% a quarter earlier, followed by Healthcare and Industrials.

Against the trend, William Blair Investment Management opened a new position in The Marzetti Company worth $148M.

  • William Blair Investment Management's largest Q4 2022 buy was The Marzetti Company: 748,865 shares worth $148M.
  • William Blair Investment Management added most to Chipotle Mexican Grill in Q4 2022, an estimated $83.1M increase.
  • William Blair Investment Management's biggest Q4 2022 reduction was Horizon Therapeutics Public Limited Company Ordinary Shares, cutting an estimated $155M.
  • William Blair Investment Management fully exited Abiomed Inc in Q4 2022, selling an estimated $241M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $26.1B portfolio in Q4 2022.
  • William Blair Investment Management opened 32 new positions and closed 18 in Q4 2022.
  • William Blair Investment Management's portfolio value rose 3.3% quarter-over-quarter to $26.1B.

Based on William Blair Investment Management's 13F filing for Q4 2022, filed 9 Feb 2023.