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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+8.27%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$31.9B
AUM Growth
+$2.51B
Cap. Flow
+$830M
Cap. Flow %
2.6%
Top 10 Hldgs %
23.75%
Holding
2,051
New
174
Increased
889
Reduced
606
Closed
88

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$66.8M
2
PODD icon
Insulet
PODD
+$47M
3
XMTR icon
Xometry
XMTR
+$44.1M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$43.7M
5
AON icon
Aon
AON
+$36.1M

Top Sells

Rank Stock Value
1
PYPL icon
PayPal
PYPL
+$73.8M
2
ATVI
Activision Blizzard
ATVI
+$46.9M
3
OSH
Oak Street Health, Inc.
OSH
+$43.6M
4
DIS icon
Walt Disney
DIS
+$34M
5
PGR icon
Progressive
PGR
+$32.6M

Sector Composition

Rank Sector Weight
1 Technology 26.2%
2 Healthcare 19.21%
3 Financials 10.7%
4 Consumer Discretionary 10.6%
5 Industrials 10.38%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
OMC icon
251
Omnicom Group
OMC
$23.4B
$17.4M 0.05%
237,764
+3,892
+2% +$277K
ILMN icon
252
Illumina
ILMN
$28.4B
$17.3M 0.05%
46,760
+581
+1% +$220K
ATVI
253
DELISTED
Activision Blizzard
ATVI
$17.2M 0.05%
259,066
-686,959
-73% -$46.9M
EFG icon
254
iShares MSCI EAFE Growth ETF
EFG
$17.3B
$17.1M 0.05%
155,372
+26,829
+21% +$2.94M
BOKF icon
255
BOK Financial
BOKF
$8.74B
$17M 0.05%
161,158
– –
EFX icon
256
Equifax
EFX
$21.4B
$17M 0.05%
57,987
+47,032
+429% +$13.1M
TSCO icon
257
Tractor Supply
TSCO
$18B
$16.8M 0.05%
352,200
-21,885
-6% -$958K
VMC icon
258
Vulcan Materials
VMC
$36.9B
$16.8M 0.05%
80,868
+2,995
+4% +$580K
ROP icon
259
Roper Technologies
ROP
$39.8B
$16.7M 0.05%
34,047
+4,232
+14% +$2.01M
IRDM icon
260
Iridium Communications
IRDM
$5.29B
$16.7M 0.05%
405,337
-6,339
-2% -$256K
GDDY icon
261
GoDaddy
GDDY
$11.5B
$16.6M 0.05%
195,489
-42,571
-18% -$3.05M
DEO icon
262
Diageo
DEO
$53.6B
$16.5M 0.05%
75,161
-8,720
-10% -$1.79M
SHAK icon
263
Shake Shack
SHAK
$2.87B
$16.4M 0.05%
227,203
+10,982
+5% +$835K
RSP icon
264
Invesco S&P 500 Equal Weight ETF
RSP
$99.5B
$16.4M 0.05%
100,671
+6,842
+7% +$1.08M
MDLZ icon
265
Mondelez International
MDLZ
$79.9B
$15.8M 0.05%
238,895
+31,612
+15% +$1.95M
TD icon
266
Toronto Dominion Bank
TD
$200B
$15.8M 0.05%
205,673
+14,440
+8% +$1.05M
AMAT icon
267
Applied Materials
AMAT
$428B
$15.6M 0.05%
99,307
+4,418
+5% +$640K
ADM icon
268
Archer Daniels Midland
ADM
$36.9B
$15.5M 0.05%
229,108
+9,023
+4% +$583K
VOE icon
269
Vanguard Morningstar Mid-Cap Value ETF
VOE
$24B
$15.4M 0.05%
102,762
+5,791
+6% +$850K
COO icon
270
Cooper Companies
COO
$14.5B
$15.4M 0.05%
147,336
-1,380
-0.9% -$141K
EEM icon
271
iShares MSCI Emerging Markets ETF
EEM
$29.5B
$15.2M 0.05%
311,134
-63,314
-17% -$3.19M
CODI icon
272
Compass Diversified
CODI
$828M
$15.2M 0.05%
495,840
+200,248
+68% +$6.07M
WFC icon
273
Wells Fargo
WFC
$264B
$15.1M 0.05%
315,578
+10,030
+3% +$494K
T icon
274
AT&T
T
$163B
$15.1M 0.05%
812,737
-185,723
-19% -$3.47M
TSM icon
275
TSMC
TSM
$2.18T
$14.7M 0.05%
122,528
+6,353
+5% +$744K
9 10
11
12 13

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William Blair & Company's Q4 2021 Portfolio in Review

As of Q4 2021, William Blair & Company held 2,051 positions worth $31.9B, up 8.5% from $29.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q4 2021 filing shows 174 new, 889 increased, 606 reduced and 88 closed positions. Its largest new stake was Portillo's: 759,814 shares worth $28.5M. The largest sale was PayPal, an estimated $73.8M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2021 buy was Portillo's: 759,814 shares worth $28.5M.
  • William Blair & Company added most to Amazon in Q4 2021, an estimated $66.8M increase.
  • William Blair & Company's biggest Q4 2021 reduction was PayPal, cutting an estimated $73.8M.
  • William Blair & Company fully exited Asana in Q4 2021, selling an estimated $6.06M.
  • William Blair & Company's ten largest holdings make up 24% of its $31.9B portfolio in Q4 2021.
  • William Blair & Company opened 174 new positions and closed 88 in Q4 2021.
  • William Blair & Company's portfolio value rose 8.5% quarter-over-quarter to $31.9B.

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