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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
+7.4%
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
$14.7B
AUM Growth
+$1.4B
Cap. Flow
+$534M
Cap. Flow %
3.62%
Top 10 Hldgs %
19%
Holding
1,488
New
131
Increased
528
Reduced
556
Closed
127

Top Buys

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$138M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$63.1M
3
DVAX
Dynavax Technologies
DVAX
+$39.8M
4
VEU icon
Vanguard FTSE All-World ex-US ETF
VEU
+$27.3M
5
VEEV icon
Veeva Systems
VEEV
+$16.3M

Top Sells

Rank Stock Value
1
ZD icon
Ziff Davis
ZD
+$22.1M
2
GE icon
GE Aerospace
GE
+$19.1M
3
EFX icon
Equifax
EFX
+$17.7M
4
NUVA
NuVasive, Inc.
NUVA
+$17.1M
5
WBA
Walgreens Boots Alliance
WBA
+$13.6M

Sector Composition

Rank Sector Weight
1 Healthcare 17.74%
2 Technology 17.58%
3 Financials 14.76%
4 Industrials 10.83%
5 Consumer Discretionary 9.09%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AVP
1326
DELISTED
Avon Products, Inc.
AVP
$68K ﹤0.01%
31,800
+8,100
+34% +$17.4K
AKS
1327
DELISTED
AK Steel Holding Corp
AKS
$66K ﹤0.01%
11,650
-275
-2% -$1.43K
AWRE icon
1328
Aware
AWRE
$26M
$63K ﹤0.01%
14,000
– –
SYRE icon
1329
Spyre Therapeutics
SYRE
$8.54B
$61K ﹤0.01%
448
– –
P
1330
DELISTED
Pandora Media Inc
P
$59K ﹤0.01%
12,220
-49,129
-80% -$294K
PTLA
1331
CALL
DELISTED
Portola Pharmaceuticals, Inc.
PTLA
$58K ﹤0.01%
1,200
+800
+200% +$40.5K
RCG
1332
RENN Fund
RCG
$21.2M
$51K ﹤0.01%
+34,108
New +$48.1K
ARC
1333
DELISTED
ARC Document Solutions, Inc.
ARC
$51K ﹤0.01%
20,000
-7,240
-27% -$23.8K
NEPT
1334
DELISTED
Neptune Wellness Solutions Inc. Ordinary Shares
NEPT
$49K ﹤0.01%
15
+7
+88% +$12.7K
RAD
1335
DELISTED
Rite Aid Corporation
RAD
$49K ﹤0.01%
1,232
-33
-3% -$1.18K
SRCL
1336
CALL
DELISTED
Stericycle Inc
SRCL
$48K ﹤0.01%
+700
New +$47.5K
APC
1337
CALL
DELISTED
Anadarko Petroleum
APC
$38K ﹤0.01%
+700
New +$34.4K
MVIS icon
1338
Microvision
MVIS
$6.21M
$36K ﹤0.01%
22,375
+10,000
+81% +$19.2K
SHLD
1339
DELISTED
Sears Holding Corporation
SHLD
$36K ﹤0.01%
+10,050
New +$49.7K
META icon
1340
CALL
Meta Platforms (Facebook)
META
$1.42T
$35K ﹤0.01%
200
-500
-71% -$88.4K
NTZ
1341
Natuzzi
NTZ
$13.4M
$35K ﹤0.01%
4,356
-600
-12% -$5.49K
EFII
1342
CALL
DELISTED
Electronics for Imaging
EFII
$35K ﹤0.01%
+1,200
New +$40.2K
SREV
1343
DELISTED
ServiceSource International, Inc.
SREV
$34K ﹤0.01%
11,000
-1,000
-8% -$3.22K
AMT.PRB
1344
DELISTED
American Tower Corporation
AMT.PRB
$31K ﹤0.01%
+250
New +$31.5K
ENSV
1345
DELISTED
Enservco Corp.
ENSV
$28K ﹤0.01%
2,900
+33
+1% +$299
MEET
1346
DELISTED
The Meet Group, Inc. Common Stock
MEET
$28K ﹤0.01%
+10,000
New +$29.7K
RAS
1347
DELISTED
RAIT Financial Trust
RAS
$26K ﹤0.01%
68,000
-4,200
-6% -$1.9K
GG
1348
CALL
DELISTED
Goldcorp Inc
GG
$26K ﹤0.01%
+2,000
New +$25.8K
INFI
1349
DELISTED
Infinity Pharmaceuticals, Inc.
INFI
$25K ﹤0.01%
12,250
– –
LULU icon
1350
CALL
lululemon athletica
LULU
$13.5B
$24K ﹤0.01%
300
– –
52 53
54
55 56

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William Blair & Company's Q4 2017 Portfolio in Review

As of Q4 2017, William Blair & Company held 1,488 positions worth $14.7B, up 10% from $13.3B the previous quarter. Its ten largest holdings account for 19% of the portfolio.

William Blair & Company deployed $534M of net new capital in Q4 2017, opening 131 new positions and adding to 528 existing holdings. Its largest new stake was Dynavax Technologies: 1,980,526 shares worth $37M.

By sector, the portfolio is most concentrated in Healthcare at 18% of assets, down from 19% a quarter earlier, followed by Technology and Financials.

On the sell side, the largest reduction was Ziff Davis, an estimated $22.1M trimmed.

  • William Blair & Company's largest Q4 2017 buy was Dynavax Technologies: 1,980,526 shares worth $37M.
  • William Blair & Company added most to Alphabet (Google) Class C in Q4 2017, an estimated $138M increase.
  • William Blair & Company's biggest Q4 2017 reduction was Ziff Davis, cutting an estimated $22.1M.
  • William Blair & Company fully exited Bob Evans Farms, Inc. in Q4 2017, selling an estimated $12.5M.
  • William Blair & Company's ten largest holdings make up 19% of its $14.7B portfolio in Q4 2017.
  • William Blair & Company opened 131 new positions and closed 127 in Q4 2017.
  • William Blair & Company's portfolio value rose 10% quarter-over-quarter to $14.7B.

Based on William Blair & Company's 13F filing for Q4 2017, filed 14 Feb 2018.