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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
-2.96%
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
$21.8B
AUM Growth
-$767M
Cap. Flow
+$148M
Cap. Flow %
0.68%
Top 10 Hldgs %
23.44%
Holding
1,924
New
62
Increased
766
Reduced
660
Closed
101

Top Buys

Rank Stock Value
1
WSO icon
Watsco Inc
WSO
+$31.3M
2
TYL icon
Tyler Technologies
TYL
+$24.6M
3
DHR icon
Danaher
DHR
+$22.7M
4
IRTC icon
iRhythm Holdings
IRTC
+$20.9M
5
USFR icon
WisdomTree Floating Rate Treasury Fund
USFR
+$20.8M

Top Sells

Rank Stock Value
1
TEAM icon
Atlassian
TEAM
+$77.8M
2
TREX icon
Trex
TREX
+$39.7M
3
DOCU
DocuSign
DOCU
+$17.2M
4
AKAM icon
Akamai
AKAM
+$16.6M
5
GLD icon
SPDR Gold Trust
GLD
+$13.1M

Sector Composition

Rank Sector Weight
1 Technology 23.15%
2 Healthcare 19.33%
3 Financials 11.9%
4 Industrials 11.25%
5 Consumer Discretionary 9.33%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PSR icon
1851
Invesco Active US Real Estate Fund
PSR
$59.2M
$0 ﹤0.01%
4
– –
RXT icon
1852
Rackspace Technology
RXT
$1.18B
– –
-10,250
Closed -$73K
RZG icon
1853
Invesco S&P SmallCap 600 Pure Growth ETF
RZG
$138M
– –
-150
Closed -$6K
SCS
1854
DELISTED
Steelcase
SCS
– –
-21,076
Closed -$226K
SITM icon
1855
SiTime
SITM
$20.5B
– –
-2,733
Closed -$446K
SKIN icon
1856
SkinHealth Systems
SKIN
$84.2M
– –
-15,419
Closed -$198K
SLRC icon
1857
SLR Investment Corp
SLRC
$700M
– –
-82,689
Closed -$1.21M
SRS icon
1858
ProShares UltraShort Real Estate
SRS
$16.1M
$0 ﹤0.01%
1
– –
STEM icon
1859
Stem
STEM
$48.8M
– –
-714
Closed -$102K
TEAM icon
1860
Atlassian
TEAM
$39.4B
– –
-415,185
Closed -$77.8M
TEF
1861
DELISTED
Telefonica
TEF
– –
-37,878
Closed -$194K
THD icon
1862
iShares MSCI Thailand ETF
THD
$355M
$0 ﹤0.01%
+3
New +$206
THR
1863
DELISTED
Thermon Group Holdings
THR
– –
-41,271
Closed -$580K
TLTE icon
1864
FlexShares Morningstar Emerging Markets Factor Tilt Index Fund
TLTE
$352M
– –
-224
Closed -$11K
UP icon
1865
Wheels Up
UP
$190M
– –
-113
Closed -$44K
WK icon
1866
Workiva
WK
$3.7B
– –
-4,675
Closed -$309K
WLY icon
1867
John Wiley & Sons Class A
WLY
$2.53B
– –
-5,197
Closed -$248K
WOOD icon
1868
iShares Global Timber & Forestry ETF
WOOD
$269M
– –
-47
Closed -$3K
WOOF icon
1869
Petco
WOOF
$780M
– –
-25,223
Closed -$372K
ZD icon
1870
Ziff Davis
ZD
$1.88B
– –
-3,320
Closed -$247K
ZS icon
1871
Zscaler
ZS
$28.7B
– –
-1,645
Closed -$246K
BECN
1872
DELISTED
Beacon Roofing Supply, Inc.
BECN
– –
-14,506
Closed -$745K
EQC
1873
DELISTED
Equity Commonwealth
EQC
– –
-7,350
Closed -$202K
DM
1874
DELISTED
Desktop Metal, Inc.
DM
– –
-1,305
Closed -$29K
SCWX
1875
DELISTED
SecureWorks Corp Class A Common Stock
SCWX
– –
-10,190
Closed -$111K
73 74
75
76 77

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William Blair & Company's Q3 2022 Portfolio in Review

As of Q3 2022, William Blair & Company held 1,924 positions worth $21.8B, down 3.4% from $22.5B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company's Q3 2022 filing shows 62 new, 766 increased, 660 reduced and 101 closed positions. Its largest new stake was GSK: 37,792 shares worth $1.11M. The largest sale was Atlassian, an estimated $77.8M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, down from 24% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2022 buy was GSK: 37,792 shares worth $1.11M.
  • William Blair & Company added most to Watsco Inc in Q3 2022, an estimated $31.3M increase.
  • William Blair & Company's biggest Q3 2022 reduction was Trex, cutting an estimated $39.7M.
  • William Blair & Company fully exited Atlassian in Q3 2022, selling an estimated $77.8M.
  • William Blair & Company's ten largest holdings make up 23% of its $21.8B portfolio in Q3 2022.
  • William Blair & Company opened 62 new positions and closed 101 in Q3 2022.
  • William Blair & Company's portfolio value fell 3.4% quarter-over-quarter to $21.8B.

Based on William Blair & Company's 13F filing for Q3 2022, filed 9 Nov 2022.