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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
+5.93%
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
$10.7B
AUM Growth
-$908M
Cap. Flow
-$1.39B
Cap. Flow %
-13.04%
Top 10 Hldgs %
17.51%
Holding
1,529
New
105
Increased
364
Reduced
634
Closed
286

Top Buys

Rank Stock Value
1
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$66.7M
2
G icon
Genpact
G
+$27.6M
3
ZTS icon
Zoetis
ZTS
+$17.2M
4
MBLY
Mobileye N.V.
MBLY
+$16.2M
5
PLAY icon
Dave & Buster's
PLAY
+$13.9M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$104M
2
GILD icon
Gilead Sciences
GILD
+$42.3M
3
MA icon
Mastercard
MA
+$37.4M
4
MJN
Mead Johnson Nutrition Company
MJN
+$37.4M
5
AMZN icon
Amazon
AMZN
+$33.3M

Sector Composition

Rank Sector Weight
1 Healthcare 19.61%
2 Technology 14.78%
3 Industrials 12.48%
4 Financials 12.35%
5 Consumer Discretionary 11.45%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
STAG icon
901
STAG Industrial
STAG
$7.1B
$322K ﹤0.01%
17,500
– –
BMRC icon
902
Bank of Marin Bancorp
BMRC
$465M
$320K ﹤0.01%
12,000
-9,896
-45% -$263K
GLIN icon
903
VanEck India Growth Leaders ETF
GLIN
$95M
$319K ﹤0.01%
7,385
+1,830
+33% +$78.7K
APAM icon
904
Artisan Partners
APAM
$3.06B
$318K ﹤0.01%
8,827
-327
-4% -$12.1K
CCMP
905
DELISTED
CMC Materials, Inc. Common Stock
CCMP
$317K ﹤0.01%
7,254
-106
-1% -$4.47K
NJ
906
DELISTED
NIDEC CP (NIHON KABUSHIKI KAISHA)1 ADS REPTG .25 SH COM STK
NJ
$317K ﹤0.01%
17,423
-82,389
-83% -$1.54M
DOV icon
907
Dover
DOV
$28.4B
$316K ﹤0.01%
6,389
+650
+11% +$33K
PAGP icon
908
Plains GP Holdings
PAGP
$5.02B
$316K ﹤0.01%
12,572
-14,131
-53% -$495K
AVGO icon
909
Broadcom
AVGO
$2T
$315K ﹤0.01%
+21,680
New +$282K
GPX
910
DELISTED
GP Strategies Corp.
GPX
$313K ﹤0.01%
12,450
+3,049
+32% +$78.4K
SBRA icon
911
Sabra Healthcare REIT
SBRA
$5.34B
$311K ﹤0.01%
15,429
-219
-1% -$4.61K
PARA
912
DELISTED
Paramount Global Class B
PARA
$310K ﹤0.01%
14,980
-1,060
-7% -$49.7K
PGEN icon
913
Precigen
PGEN
$2.47B
$310K ﹤0.01%
+10,393
New +$350K
FRC
914
DELISTED
First Republic Bank
FRC
$308K ﹤0.01%
4,659
+30
+0.6% +$1.98K
PODD icon
915
Insulet
PODD
$9.66B
$306K ﹤0.01%
+8,112
New +$273K
AB icon
916
AllianceBernstein
AB
$3.47B
$305K ﹤0.01%
12,839
+1,000
+8% +$25.2K
INCY icon
917
Incyte
INCY
$24B
$305K ﹤0.01%
2,810
-160
-5% -$17.8K
PFG icon
918
Principal Financial Group
PFG
$24.7B
$304K ﹤0.01%
6,786
+337
+5% +$16.4K
SPH icon
919
Suburban Propane Partners
SPH
$1.18B
$304K ﹤0.01%
12,531
-816
-6% -$25K
ROST icon
920
Ross Stores
ROST
$81.6B
$302K ﹤0.01%
5,620
-443
-7% -$22.6K
ITY
921
DELISTED
IMPERIAL TOBACCO GRP ADS(RP 2
ITY
$302K ﹤0.01%
2,864
-353
-11% -$37.2K
EMFM
922
DELISTED
Global X MSCI Next Emerging & Frontier ETF
EMFM
$300K ﹤0.01%
17,415
-3,172
-15% -$59K
IJS icon
923
iShares S&P Small-Cap 600 Value ETF
IJS
$8.26B
$297K ﹤0.01%
5,510
-450
-8% -$25K
WHR icon
924
Whirlpool
WHR
$2.8B
$297K ﹤0.01%
2,030
-113
-5% -$17.5K
TM icon
925
Toyota
TM
$222B
$296K ﹤0.01%
2,404
+83
+4% +$10.3K
35 36
37
38 39

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William Blair & Company's Q4 2015 Portfolio in Review

As of Q4 2015, William Blair & Company held 1,529 positions worth $10.7B, down 7.9% from $11.6B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair & Company withdrew a net $1.39B in Q4 2015, closing 286 positions and reducing 634 holdings. Its most notable exit was Barracuda Networks, Inc., an estimated $7.62M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 20% of assets, up from 19% a quarter earlier, followed by Technology and Industrials.

Against the trend, William Blair & Company opened a new position in Alphabet (Google) Class A worth $70.1M.

  • William Blair & Company's largest Q4 2015 buy was Alphabet (Google) Class A: 1,802,460 shares worth $70.1M.
  • William Blair & Company added most to Zoetis in Q4 2015, an estimated $17.2M increase.
  • William Blair & Company's biggest Q4 2015 reduction was Alphabet (Google) Class C, cutting an estimated $104M.
  • William Blair & Company fully exited Barracuda Networks, Inc. in Q4 2015, selling an estimated $7.62M.
  • William Blair & Company's ten largest holdings make up 18% of its $10.7B portfolio in Q4 2015.
  • William Blair & Company opened 105 new positions and closed 286 in Q4 2015.
  • William Blair & Company's portfolio value fell 7.9% quarter-over-quarter to $10.7B.

Based on William Blair & Company's 13F filing for Q4 2015, filed 16 Feb 2016.