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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
+12.53%
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
$23.6B
AUM Growth
+$2.6B
Cap. Flow
+$316M
Cap. Flow %
1.34%
Top 10 Hldgs %
26.84%
Holding
1,800
New
126
Increased
679
Reduced
652
Closed
80

Top Buys

Rank Stock Value
1
QDEL icon
QuidelOrtho
QDEL
+$40.3M
2
TDOC icon
Teladoc Health
TDOC
+$32.5M
3
CTAS icon
Cintas
CTAS
+$25.5M
4
ECL icon
Ecolab
ECL
+$25.4M
5
FTV icon
Fortive
FTV
+$24M

Top Sells

Rank Stock Value
1
GS icon
Goldman Sachs
GS
+$46.7M
2
GWRE icon
Guidewire Software
GWRE
+$38.9M
3
ANET icon
Arista Networks
ANET
+$31.4M
4
V icon
Visa
V
+$25.9M
5
PFNX
Pfenex Inc.
PFNX
+$25.4M

Sector Composition

Rank Sector Weight
1 Technology 27.37%
2 Healthcare 19.68%
3 Financials 10.88%
4 Consumer Discretionary 10.56%
5 Industrials 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PRSP
1751
DELISTED
Perspecta Inc. Common Stock
PRSP
– –
-23,709
Closed -$551K
FFEU
1752
DELISTED
Barclays ETN+ FI Enhanced Europe 50 ETN Series C
FFEU
– –
-95
Closed -$7K
WMGI
1753
DELISTED
Wright Medical Group Inc
WMGI
– –
-12,452
Closed -$370K
GDAT
1754
DELISTED
Goldman Sachs Data-Driven World ETF
GDAT
– –
-20
Closed -$1K
GARS
1755
DELISTED
Garrison Capital Inc.
GARS
– –
-14,000
Closed -$47K
NBL
1756
DELISTED
Noble Energy, Inc.
NBL
– –
-11,176
Closed -$100K
PFNX
1757
DELISTED
Pfenex Inc.
PFNX
– –
-3,036,976
Closed -$25.4M
NE
1758
DELISTED
Noble Corporation
NE
– –
-15,465
Closed -$5K
LM
1759
DELISTED
Legg Mason, Inc.
LM
– –
-14,729
Closed -$733K
TMUSR
1760
DELISTED
T-Mobile US, Inc. Subscription Rights Expiring 7/27/2020
TMUSR
– –
-18,588
Closed -$3K
HCR
1761
DELISTED
Hi-Crush Inc. Common Stock
HCR
– –
-81,000
Closed -$12K
CVIA
1762
DELISTED
Covia Holdings Corporation Common Stock
CVIA
– –
-26,687
Closed -$13K
IBMJ
1763
DELISTED
iShares iBonds Dec 2021 Term Muni Bond ETF
IBMJ
– –
-1,200
Closed -$31K
SOIL
1764
DELISTED
Global X Fertilizers/Potash ETF
SOIL
– –
-9,500
Closed -$67K
67 68 69 70
71

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William Blair & Company's Q3 2020 Portfolio in Review

As of Q3 2020, William Blair & Company held 1,800 positions worth $23.6B, up 12% from $21B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

William Blair & Company's Q3 2020 filing shows 126 new, 679 increased, 652 reduced and 80 closed positions. Its largest new stake was Unity: 72,858 shares worth $6.36M. The largest sale was Goldman Sachs, an estimated $46.7M.

By sector, the portfolio is most concentrated in Technology at 27% of assets, down from 27% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2020 buy was Unity: 72,858 shares worth $6.36M.
  • William Blair & Company added most to QuidelOrtho in Q3 2020, an estimated $40.3M increase.
  • William Blair & Company's biggest Q3 2020 reduction was Goldman Sachs, cutting an estimated $46.7M.
  • William Blair & Company fully exited Pfenex Inc. in Q3 2020, selling an estimated $25.4M.
  • William Blair & Company's ten largest holdings make up 27% of its $23.6B portfolio in Q3 2020.
  • William Blair & Company opened 126 new positions and closed 80 in Q3 2020.
  • William Blair & Company's portfolio value rose 12% quarter-over-quarter to $23.6B.

Based on William Blair & Company's 13F filing for Q3 2020, filed 6 Nov 2020.