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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+8.67%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$23B
AUM Growth
+$1.22B
Cap. Flow
-$156M
Cap. Flow %
-0.68%
Top 10 Hldgs %
22.7%
Holding
1,905
New
81
Increased
568
Reduced
855
Closed
91

Top Buys

Rank Stock Value
1
POOL icon
Pool Corp
POOL
+$43.2M
2
TEAM icon
Atlassian
TEAM
+$36.6M
3
NOVT icon
Novanta
NOVT
+$28.8M
4
PANW icon
Palo Alto Networks
PANW
+$23.2M
5
MSI icon
Motorola Solutions
MSI
+$20.1M

Top Sells

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$103M
2
PYPL icon
PayPal
PYPL
+$28.4M
3
DIS icon
Walt Disney
DIS
+$26.7M
4
KMX icon
CarMax
KMX
+$25.2M
5
CRM icon
Salesforce
CRM
+$24.3M

Sector Composition

Rank Sector Weight
1 Technology 22.31%
2 Healthcare 19.82%
3 Financials 12.49%
4 Industrials 11.58%
5 Consumer Discretionary 8.46%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SO icon
376
Southern Company
SO
$106B
$6.57M 0.03%
91,985
-3,835
-4% -$256K
FSLR icon
377
First Solar
FSLR
$24.4B
$6.51M 0.03%
43,456
-173
-0.4% -$25.6K
CP icon
378
Canadian Pacific Kansas City
CP
$81.5B
$6.49M 0.03%
87,003
+34,800
+67% +$2.62M
JBHT icon
379
JB Hunt Transport Services
JBHT
$25.9B
$6.47M 0.03%
37,090
-36
-0.1% -$6.28K
VB icon
380
Vanguard Morningstar Small-Cap ETF
VB
$83B
$6.46M 0.03%
35,217
+562
+2% +$104K
U icon
381
Unity
U
$19.6B
$6.22M 0.03%
217,709
-43,977
-17% -$1.38M
SCHD icon
382
Schwab US Dividend Equity ETF
SCHD
$107B
$6.21M 0.03%
246,669
+21,813
+10% +$538K
PHR icon
383
Phreesia
PHR
$758M
$6.2M 0.03%
191,715
-2,537
-1% -$68.9K
SPG icon
384
Simon Property Group
SPG
$71.4B
$6.16M 0.03%
52,431
-732
-1% -$81.4K
XLU icon
385
State Street Utilities Select Sector SPDR ETF
XLU
$22.8B
$6.15M 0.03%
174,566
+16,692
+11% +$567K
MPC icon
386
Marathon Petroleum
MPC
$97.8B
$6.11M 0.03%
52,514
-132
-0.3% -$15K
IWR icon
387
iShares Russell Mid-Cap ETF
IWR
$57.9B
$6.08M 0.03%
90,110
-89
-0.1% -$6K
COP icon
388
ConocoPhillips
COP
$153B
$6.06M 0.03%
51,362
-1,790
-3% -$218K
XYL icon
389
Xylem
XYL
$28.5B
$6.02M 0.03%
54,434
-935
-2% -$98K
ICLR icon
390
Icon
ICLR
$12.9B
$5.99M 0.03%
30,812
-3,550
-10% -$704K
PNC icon
391
PNC Financial Services
PNC
$102B
$5.98M 0.03%
37,874
+6,871
+22% +$1.08M
CNI icon
392
Canadian National Railway
CNI
$76.4B
$5.96M 0.03%
50,122
-1,094
-2% -$131K
STIP icon
393
iShares 0-5 Year TIPS Bond ETF
STIP
$15.9B
$5.91M 0.03%
60,996
+1,882
+3% +$183K
BWA icon
394
BorgWarner
BWA
$14B
$5.9M 0.03%
166,607
+22,151
+15% +$753K
MRSH
395
Marsh
MRSH
$90.1B
$5.9M 0.03%
35,646
-2,201
-6% -$360K
TEL icon
396
TE Connectivity
TEL
$62B
$5.9M 0.03%
51,373
-8,125
-14% -$965K
WSC icon
397
WillScot Mobile Mini Holdings
WSC
$4B
$5.88M 0.03%
130,186
+3,580
+3% +$161K
EEM icon
398
iShares MSCI Emerging Markets ETF
EEM
$30.4B
$5.87M 0.03%
154,809
-87,481
-36% -$3.23M
WY icon
399
Weyerhaeuser
WY
$17.8B
$5.82M 0.03%
187,893
+803
+0.4% +$24.9K
PRF icon
400
Invesco FTSE RAFI US 1000 ETF
PRF
$10B
$5.8M 0.03%
186,820
+1,260
+0.7% +$38.8K
14 15
16
17 18

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William Blair & Company's Q4 2022 Portfolio in Review

As of Q4 2022, William Blair & Company held 1,905 positions worth $23B, up 5.6% from $21.8B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company's Q4 2022 filing shows 81 new, 568 increased, 855 reduced and 91 closed positions. Its largest new stake was Atlassian: 230,078 shares worth $29.6M. The largest sale was Abiomed Inc, an estimated $103M.

By sector, the portfolio is most concentrated in Technology at 22% of assets, down from 23% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2022 buy was Atlassian: 230,078 shares worth $29.6M.
  • William Blair & Company added most to Pool Corp in Q4 2022, an estimated $43.2M increase.
  • William Blair & Company's biggest Q4 2022 reduction was PayPal, cutting an estimated $28.4M.
  • William Blair & Company fully exited Abiomed Inc in Q4 2022, selling an estimated $103M.
  • William Blair & Company's ten largest holdings make up 23% of its $23B portfolio in Q4 2022.
  • William Blair & Company opened 81 new positions and closed 91 in Q4 2022.
  • William Blair & Company's portfolio value rose 5.6% quarter-over-quarter to $23B.

Based on William Blair & Company's 13F filing for Q4 2022, filed 10 Feb 2023.