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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
PLMR icon
276
Palomar
PLMR
$3.45B
$14.7M 0.05%
227,153
-22,440
-9% -$1.75M
IAU icon
277
iShares Gold Trust
IAU
$67.5B
$14.6M 0.05%
419,971
-25,909
-6% -$885K
EXEL icon
278
Exelixis
EXEL
$13.4B
$14.6M 0.05%
798,112
+5,095
+0.6% +$97.5K
DOV icon
279
Dover
DOV
$28.4B
$14.4M 0.05%
79,446
+2,455
+3% +$417K
FDX icon
280
FedEx
FDX
$75.4B
$14.3M 0.04%
55,276
-1,374
-2% -$330K
KMB icon
281
Kimberly-Clark
KMB
$36.5B
$14.2M 0.04%
99,681
+15,046
+18% +$2.03M
IT icon
282
Gartner
IT
$11.7B
$14.2M 0.04%
42,330
-356
-0.8% -$114K
IRM icon
283
Iron Mountain
IRM
$36.1B
$14.2M 0.04%
270,398
+6,190
+2% +$293K
AJG icon
284
Arthur J. Gallagher & Co
AJG
$63.6B
$14.1M 0.04%
83,014
+846
+1% +$138K
C icon
285
Citigroup
C
$226B
$13.9M 0.04%
229,796
-29,845
-11% -$1.98M
KHC icon
286
Kraft Heinz
KHC
$30B
$13.8M 0.04%
385,147
+246,061
+177% +$8.84M
RDFN
287
DELISTED
Redfin
RDFN
$13.8M 0.04%
359,268
+5,301
+1% +$241K
TAN icon
288
Invesco Solar ETF
TAN
$1.49B
$13.7M 0.04%
178,312
+1,087
+0.6% +$95.3K
DOW icon
289
Dow Inc
DOW
$21.2B
$13.7M 0.04%
241,826
+28,451
+13% +$1.62M
IEMG icon
290
iShares Core MSCI Emerging Markets ETF
IEMG
$156B
$13.7M 0.04%
229,082
+25,812
+13% +$1.59M
THS
291
DELISTED
Treehouse Foods
THS
$13.7M 0.04%
338,133
-52,487
-13% -$2.03M
PH icon
292
Parker-Hannifin
PH
$135B
$13.7M 0.04%
42,986
+525
+1% +$162K
LAZR
293
DELISTED
Luminar Technologies
LAZR
$13.7M 0.04%
53,904
+2,253
+4% +$564K
TJX icon
294
TJX Companies
TJX
$178B
$13.6M 0.04%
178,955
+13,212
+8% +$916K
XLI icon
295
State Street Industrial Select Sector SPDR ETF
XLI
$33.7B
$13.5M 0.04%
127,417
+10,013
+9% +$1.04M
SITE icon
296
SiteOne Landscape Supply
SITE
$4.53B
$13.5M 0.04%
55,639
+1,754
+3% +$406K
PAVE icon
297
Global X US Infrastructure Development ETF
PAVE
$15.2B
$13.3M 0.04%
462,394
+20,033
+5% +$557K
BABA icon
298
Alibaba
BABA
$308B
$13.3M 0.04%
111,786
-92,937
-45% -$13.5M
IUSG icon
299
iShares Core S&P US Growth ETF
IUSG
$33.7B
$13.2M 0.04%
114,434
+13,296
+13% +$1.48M
MINT icon
300
PIMCO Enhanced Short Maturity Active Exchange-Traded Fund
MINT
$17B
$13.1M 0.04%
129,113
+112,632
+683% +$11.5M
10 11
12
13 14

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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.