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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
+5.73%
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
$37B
AUM Growth
+$1.55B
Cap. Flow
+$474M
Cap. Flow %
1.28%
Top 10 Hldgs %
16.63%
Holding
465
New
34
Increased
192
Reduced
193
Closed
38

Top Buys

Rank Stock Value
1
MSFT icon
Microsoft
MSFT
+$206M
2
AMZN icon
Amazon
AMZN
+$159M
3
NFLX icon
Netflix
NFLX
+$145M
4
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$127M
5
SKIN icon
SkinHealth Systems
SKIN
+$113M

Top Sells

Rank Stock Value
1
PODD icon
Insulet
PODD
+$218M
2
EHC icon
Encompass Health
EHC
+$200M
3
FCFS icon
FirstCash
FCFS
+$170M
4
GDDY icon
GoDaddy
GDDY
+$167M
5
ZEN
ZENDESK INC
ZEN
+$156M

Sector Composition

Rank Sector Weight
1 Technology 26.95%
2 Healthcare 17.95%
3 Consumer Discretionary 15.98%
4 Industrials 14.09%
5 Financials 7.71%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ULTA icon
126
Ulta Beauty
ULTA
$22.9B
$72.9M 0.2%
176,865
-53,193
-23% -$20.7M
GOOG icon
127
Alphabet (Google) Class C
GOOG
$4.18T
$72.9M 0.2%
503,980
+119,460
+31% +$17.3M
OEC icon
128
Orion
OEC
$372M
$72.8M 0.2%
3,963,012
-894,452
-18% -$16.7M
SNPS icon
129
Synopsys
SNPS
$79.2B
$72.8M 0.2%
+197,452
New +$66.6M
HNGR
130
DELISTED
Hanger Inc.
HNGR
$72.6M 0.2%
4,002,295
+483,304
+14% +$8.99M
BOOT icon
131
Boot Barn
BOOT
$4.9B
$72.5M 0.2%
589,364
-142,847
-20% -$16.1M
VRRM icon
132
Verra Mobility
VRRM
$722M
$70.9M 0.19%
4,593,057
+32,382
+0.7% +$491K
LIN icon
133
Linde
LIN
$223B
$70.2M 0.19%
202,721
+67,363
+50% +$21.8M
SPB icon
134
Spectrum Brands
SPB
$1.99B
$69.6M 0.19%
684,487
-34,096
-5% -$3.35M
BLK icon
135
Blackrock
BLK
$178B
$67.8M 0.18%
74,053
+9,758
+15% +$8.9M
EW icon
136
Edwards Lifesciences
EW
$53.3B
$67.1M 0.18%
517,959
+62,183
+14% +$7.25M
BDC icon
137
Belden
BDC
$5.33B
$66.7M 0.18%
1,014,971
-89,010
-8% -$5.58M
ICE icon
138
Intercontinental Exchange
ICE
$84.7B
$65.9M 0.18%
481,621
+65,579
+16% +$8.69M
ADSK icon
139
Autodesk
ADSK
$52B
$65.1M 0.18%
231,488
+98,235
+74% +$28.6M
U icon
140
Unity
U
$19.2B
$64.7M 0.17%
452,529
+285,648
+171% +$43.7M
LNTH icon
141
Lantheus
LNTH
$6.57B
$63.9M 0.17%
2,213,029
-418,217
-16% -$11.1M
TSEM icon
142
Tower Semiconductor
TSEM
$30.4B
$63.7M 0.17%
1,604,939
-132,596
-8% -$4.6M
ISRG icon
143
Intuitive Surgical
ISRG
$141B
$62M 0.17%
172,579
+13,270
+8% +$4.57M
CPNG icon
144
Coupang
CPNG
$29.4B
$60.5M 0.16%
2,060,181
+305,030
+17% +$8.59M
OXM icon
145
Oxford Industries
OXM
$530M
$59.6M 0.16%
586,690
-64,337
-10% -$6.26M
NEE icon
146
NextEra Energy
NEE
$180B
$58.4M 0.16%
625,123
+200,368
+47% +$17.3M
ZIP icon
147
ZipRecruiter
ZIP
$405M
$57.7M 0.16%
2,313,588
+211,372
+10% +$5.8M
CNOB icon
148
Center Bancorp
CNOB
$1.8B
$57.5M 0.16%
1,757,822
-150,561
-8% -$4.97M
PRAA icon
149
PRA Group
PRAA
$712M
$57.3M 0.15%
1,141,236
-93,755
-8% -$4.17M
ALGN icon
150
Align Technology
ALGN
$12.2B
$55M 0.15%
83,746
-13,156
-14% -$8.46M
4 5
6
7 8

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William Blair Investment Management's Q4 2021 Portfolio in Review

As of Q4 2021, William Blair Investment Management held 465 positions worth $37B, up 4.4% from $35.5B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management's Q4 2021 filing shows 34 new, 192 increased, 193 reduced and 38 closed positions. Its largest new stake was Netflix: 2,270,340 shares worth $137M. The largest sale was Insulet, an estimated $218M.

By sector, the portfolio is most concentrated in Technology at 27% of assets, up from 25% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • William Blair Investment Management's largest Q4 2021 buy was Netflix: 2,270,340 shares worth $137M.
  • William Blair Investment Management added most to Microsoft in Q4 2021, an estimated $206M increase.
  • William Blair Investment Management's biggest Q4 2021 reduction was Encompass Health, cutting an estimated $200M.
  • William Blair Investment Management fully exited Insulet in Q4 2021, selling an estimated $218M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $37B portfolio in Q4 2021.
  • William Blair Investment Management opened 34 new positions and closed 38 in Q4 2021.
  • William Blair Investment Management's portfolio value rose 4.4% quarter-over-quarter to $37B.

Based on William Blair Investment Management's 13F filing for Q4 2021, filed 14 Feb 2022.