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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
-13.3%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+512.03%
AUM
$13.7B
AUM Growth
-$2.6B
Cap. Flow
-$222M
Cap. Flow %
-1.61%
Top 10 Hldgs %
20.6%
Holding
1,859
New
191
Increased
555
Reduced
650
Closed
205

Top Buys

Rank Stock Value
1
LIN icon
Linde
LIN
+$55.6M
2
EFA icon
iShares MSCI EAFE ETF
EFA
+$22.8M
3
ULTA icon
Ulta Beauty
ULTA
+$22.1M
4
INTU icon
Intuit
INTU
+$22M
5
DIS icon
Walt Disney
DIS
+$21.1M

Sector Composition

Rank Sector Weight
1 Technology 20.75%
2 Healthcare 18.42%
3 Financials 12.76%
4 Consumer Discretionary 9.45%
5 Industrials 9.06%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
NVTA
1751
DELISTED
Invitae Corporation
NVTA
-12,950
Closed -$217K
KMF
1752
DELISTED
Kayne Anderson NextGen Energy & Infrastructure, Inc.
KMF
-35,984
Closed -$461K
APRN
1753
DELISTED
Blue Apron Holdings, Inc. Class A Common Stock
APRN
-6,456
Closed -$2M
RAD
1754
DELISTED
Rite Aid Corporation
RAD
-957
Closed -$25K
KDNY
1755
DELISTED
Chinook Therapeutics, Inc. Common Stock
KDNY
-16,310
Closed -$599K
HZN
1756
DELISTED
Horizon Global Corporation
HZN
-11,473
Closed -$82K
ENDP
1757
DELISTED
Endo International plc
ENDP
-10,820
Closed -$182K
VNE
1758
DELISTED
Veoneer, Inc.
VNE
-4,046
Closed -$223K
DSKEW
1759
DELISTED
Daseke, Inc. Warrant
DSKEW
$0 ﹤0.01%
3,000
FMBI
1760
DELISTED
First Midwest Bancorp Inc/IL
FMBI
-17,667
Closed -$470K
TLND
1761
DELISTED
Talend S.A. American Depositary Shares
TLND
-5,085
Closed -$355K
ALXN
1762
DELISTED
Alexion Pharmaceuticals
ALXN
-1,575
Closed -$219K
STAY
1763
DELISTED
Extended Stay America, Inc. Paired Share Unit
STAY
-51,077
Closed -$1.03M
WDR
1764
DELISTED
Waddell & Reed Financial, Inc.
WDR
-12,250
Closed -$259K
EV
1765
DELISTED
Eaton Vance Corp.
EV
-6,136
Closed -$323K
PE
1766
DELISTED
PARSLEY ENERGY INC
PE
-11,436
Closed -$335K
TIF
1767
DELISTED
Tiffany & Co.
TIF
-2,689
Closed -$347K
PGNX
1768
DELISTED
Progenics Pharmaceuticals Inc
PGNX
-26,500
Closed -$166K
CFRX
1769
DELISTED
ContraFect Corporation
CFRX
-44
Closed -$72K
ONCE
1770
DELISTED
Spark Therapeutics, Inc. Common Stock
ONCE
-8,270
Closed -$451K
GHDX
1771
DELISTED
Genomic Health, Inc.
GHDX
-5,800
Closed -$407K
MDSO
1772
DELISTED
Medidata Solutions, Inc.
MDSO
-2,901
Closed -$213K
AAC
1773
DELISTED
AAC Holdings
AAC
-37,035
Closed -$283K
ANDX
1774
DELISTED
Andeavor Logistics LP
ANDX
-10,852
Closed -$527K
HZNP
1775
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
-24,863
Closed -$487K

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William Blair & Company's Q4 2018 Portfolio in Review

As of Q4 2018, William Blair & Company held 1,859 positions worth $13.7B, down 16% from $16.3B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q4 2018 filing shows 191 new, 555 increased, 650 reduced and 205 closed positions. Its largest new stake was Linde: 352,000 shares worth $54.9M. The largest sale was Praxair Inc, an estimated $73.7M.

By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 21% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2018 buy was Linde: 352,000 shares worth $54.9M.
  • William Blair & Company added most to iShares MSCI EAFE ETF in Q4 2018, an estimated $22.8M increase.
  • William Blair & Company's biggest Q4 2018 reduction was Red Hat Inc, cutting an estimated $46M.
  • William Blair & Company fully exited Praxair Inc in Q4 2018, selling an estimated $73.7M.
  • William Blair & Company's ten largest holdings make up 21% of its $13.7B portfolio in Q4 2018.
  • William Blair & Company opened 191 new positions and closed 205 in Q4 2018.
  • William Blair & Company's portfolio value fell 16% quarter-over-quarter to $13.7B.

Based on William Blair & Company's 13F filing for Q4 2018, filed 14 Feb 2019.