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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
TCBI icon
176
Texas Capital Bancshares
TCBI
$4.38B
$45.9M 0.12%
762,394
-61,230
-7% -$3.69M
BLMN icon
177
Bloomin' Brands
BLMN
$971M
$45.5M 0.12%
+2,168,244
New +$45.8M
CSGS
178
DELISTED
CSG Systems International
CSGS
$45.3M 0.12%
786,121
-69,543
-8% -$3.69M
EBC icon
179
Eastern Bankshares
EBC
$5.33B
$44.9M 0.12%
2,225,466
+1,877,053
+539% +$39M
NTCT icon
180
NETSCOUT
NTCT
$2.87B
$44.7M 0.12%
1,351,217
-111,978
-8% -$3.4M
WGO icon
181
Winnebago Industries
WGO
$904M
$44.7M 0.12%
596,135
-49,596
-8% -$3.57M
ICFI icon
182
ICF International
ICFI
$1.59B
$44.5M 0.12%
433,512
-34,889
-7% -$3.51M
DCOM icon
183
Dime Commercial Bancshares
DCOM
$1.82B
$44M 0.12%
1,252,152
-104,348
-8% -$3.67M
PEB icon
184
Pebblebrook Hotel Trust
PEB
$2.03B
$43.9M 0.12%
1,964,370
+918,466
+88% +$20.7M
ECL icon
185
Ecolab
ECL
$78.8B
$43.9M 0.12%
186,969
+22,564
+14% +$5.1M
PJT icon
186
PJT Partners
PJT
$4.47B
$43.5M 0.12%
587,235
-52,630
-8% -$4.19M
EPC icon
187
Edgewell Personal Care
EPC
$1.32B
$43.3M 0.12%
947,377
-81,345
-8% -$3.28M
EAF icon
188
GrafTech
EAF
$198M
$43.2M 0.12%
365,169
+16,958
+5% +$1.97M
BANC icon
189
Banc of California
BANC
$3.1B
$42.7M 0.12%
2,176,439
-180,119
-8% -$3.65M
DCO icon
190
Ducommun
DCO
$3.03B
$42.2M 0.11%
902,219
+877
+0.1% +$41.9K
STE icon
191
Steris
STE
$23B
$42.1M 0.11%
172,983
-23,489
-12% -$5.37M
ONT
192
Onterris Inc
ONT
$569M
$42.1M 0.11%
596,720
-159,730
-21% -$11.1M
ADNT icon
193
Adient
ADNT
$1.44B
$41.5M 0.11%
+866,541
New +$38.9M
CODI icon
194
Compass Diversified
CODI
$917M
$41.4M 0.11%
1,352,803
-123,204
-8% -$3.74M
IAA
195
DELISTED
IAA, Inc. Common Stock
IAA
$41.1M 0.11%
812,843
+7,648
+0.9% +$407K
TPH
196
DELISTED
Tri Pointe Homes
TPH
$41M 0.11%
1,471,619
-1,467,162
-50% -$36.9M
FRME icon
197
First Merchants
FRME
$2.71B
$41M 0.11%
978,897
+152,700
+18% +$6.4M
TMHC
198
DELISTED
Taylor Morrison
TMHC
$41M 0.11%
1,172,766
-574,557
-33% -$17.9M
PPBI
199
DELISTED
Pacific Premier Bancorp
PPBI
$41M 0.11%
1,023,710
-81,724
-7% -$3.39M
MLKN icon
200
MillerKnoll
MLKN
$1.61B
$40.9M 0.11%
1,043,280
+33,294
+3% +$1.3M
6 7
8
9 10

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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.