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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
HIW icon
401
Highwoods Properties
HIW
$3.46B
$454K ﹤0.01%
+10,190
New +$461K
ABT icon
402
Abbott
ABT
$192B
$449K ﹤0.01%
3,192
– –
TKR icon
403
Timken Company
TKR
$9.03B
$447K ﹤0.01%
+6,450
New +$452K
MSM icon
404
MSC Industrial Direct
MSM
$6.67B
$430K ﹤0.01%
5,118
+1,383
+37% +$116K
AGCO icon
405
AGCO
AGCO
$7.11B
$428K ﹤0.01%
+3,685
New +$448K
IVZ icon
406
Invesco
IVZ
$13.9B
$427K ﹤0.01%
18,531
+7,909
+74% +$192K
WBD icon
407
Warner Bros
WBD
$69.3B
$427K ﹤0.01%
18,155
+7,234
+66% +$180K
DXC icon
408
DXC Technology
DXC
$1.71B
$415K ﹤0.01%
12,879
+984
+8% +$32.1K
ALK icon
409
Alaska Air
ALK
$5.29B
$413K ﹤0.01%
7,933
+3,127
+65% +$169K
FLS icon
410
Flowserve
FLS
$10.3B
$381K ﹤0.01%
12,449
+4,262
+52% +$141K
IWP icon
411
iShares Russell Mid-Cap Growth ETF
IWP
$21B
$361K ﹤0.01%
+3,130
New +$365K
UNVR
412
DELISTED
Univar Solutions Inc.
UNVR
$291K ﹤0.01%
10,274
+1,397
+16% +$37.7K
STL
413
DELISTED
Sterling Bancorp
STL
$287K ﹤0.01%
11,137
+527
+5% +$13.6K
CDK
414
DELISTED
CDK Global, Inc.
CDK
$285K ﹤0.01%
+6,819
New +$286K
QRVO icon
415
Qorvo
QRVO
$8.67B
$284K ﹤0.01%
+1,818
New +$289K
AAPL icon
416
Apple
AAPL
$4.41T
$273K ﹤0.01%
+1,540
New +$243K
AYI icon
417
Acuity Brands
AYI
$10.8B
$270K ﹤0.01%
1,275
– –
DRE
418
DELISTED
Duke Realty Corp.
DRE
$258K ﹤0.01%
+3,925
New +$227K
PNFP icon
419
Pinnacle Financial Partners Inc
PNFP
$16.1B
$246K ﹤0.01%
2,578
-485,360
-99% -$47.5M
CNC icon
420
Centene
CNC
$33.1B
$230K ﹤0.01%
2,796
-145,693
-98% -$10.7M
LH icon
421
Labcorp
LH
$26.2B
$208K ﹤0.01%
+771
New +$191K
SEE
422
DELISTED
Sealed Air
SEE
$207K ﹤0.01%
+3,063
New +$190K
CTSH icon
423
Cognizant
CTSH
$26.2B
$202K ﹤0.01%
+2,276
New +$183K
WTW icon
424
Willis Towers Watson
WTW
$31.6B
$200K ﹤0.01%
+844
New +$200K
HBAN icon
425
Huntington Bancshares
HBAN
$36.1B
$191K ﹤0.01%
12,359
– –
15 16
17
18 19

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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.