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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
+3.05%
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
$65B
AUM Growth
+$3.08B
Cap. Flow
+$214M
Cap. Flow %
0.33%
Top 10 Hldgs %
7.07%
Holding
2,420
New
292
Increased
857
Reduced
826
Closed
260

Sector Composition

Rank Sector Weight
1 Healthcare 7.54%
2 Industrials 7.52%
3 Consumer Discretionary 6.41%
4 Technology 6.29%
5 Financials 6.1%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
CSOD
1426
DELISTED
Cornerstone OnDemand, Inc.
CSOD
-8,985
Closed -$316K
PFPT
1427
DELISTED
Proofpoint, Inc.
PFPT
-5,320
Closed -$256K
PE
1428
DELISTED
PARSLEY ENERGY INC
PE
-228,686
Closed -$3.65M
BITA
1429
DELISTED
Bitauto Holdings Limited
BITA
-78,891
Closed -$5.55M
POPE
1430
DELISTED
Pope Resources Depositary Receipts of Limited Partnership Units
POPE
-5,400
Closed -$343K
JMF
1431
DELISTED
NUVEEN ENERGY MLP TOTAL RETURN FUND
JMF
-13,235
Closed -$268K
ZAYO
1432
DELISTED
Zayo Group Holdings, Inc.
ZAYO
-10,790
Closed -$329K
ACHN
1433
CALL
DELISTED
Achillion Pharmaceuticals
ACHN
-2,000
Closed -$24K
ACHN
1434
PUT
DELISTED
Achillion Pharmaceuticals
ACHN
-5,000
Closed -$61K
VIAB
1435
DELISTED
Viacom Inc. Class B
VIAB
-3,922
Closed -$295K
GHDX
1436
DELISTED
Genomic Health, Inc.
GHDX
-27,260
Closed -$871K
LLL
1437
DELISTED
L3 Technologies, Inc.
LLL
-1,760
Closed -$222K
EPE
1438
DELISTED
EP Energy Corporation
EPE
-40,400
Closed -$421K
SPA
1439
DELISTED
Sparton
SPA
-408,395
Closed -$11.6M
NFX
1440
DELISTED
Newfield Exploration
NFX
-11,281
Closed -$306K
KANG
1441
DELISTED
iKang Healthcare Group, Inc.
KANG
-272,071
Closed -$4.09M
KERX
1442
CALL
DELISTED
Keryx Biopharmaceuticals Inc
KERX
-3,000
Closed -$42K
KERX
1443
DELISTED
Keryx Biopharmaceuticals Inc
KERX
-9,000
Closed -$127K
SONC
1444
DELISTED
Sonic Corp
SONC
-9,200
Closed -$250K
KLXI
1445
DELISTED
KLX Inc.
KLXI
-399,497
Closed -$13.9M
KODK.WS
1446
DELISTED
Eastman Kodak Company
KODK.WS
-11,845
Closed -$90K
GLBR
1447
DELISTED
Global Brokerage, Inc. Class A Common Stock
GLBR
-551,123
Closed -$91.3M
FNFV
1448
DELISTED
Fidelity Natl Financial, Inc.
FNFV
-13,239
Closed -$159K
FSAM
1449
DELISTED
Fifth Street Asset Management Inc. Class A
FSAM
-507,422
Closed -$7.08M
MACK
1450
CALL
DELISTED
Merrimack Pharmaceuticals, Inc.
MACK
-636
Closed -$56K

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William Blair & Company's Q1 2015 Portfolio in Review

As of Q1 2015, William Blair & Company held 2,420 positions worth $65B, up 5% from $61.9B the previous quarter. Its ten largest holdings account for 7.1% of the portfolio.

William Blair & Company's Q1 2015 filing shows 292 new, 857 increased, 826 reduced and 260 closed positions. Its largest new stake was First American: 468,238 shares worth $16.7M. The largest sale was PRECISION CASTPARTS CORP, an estimated $146M.

By sector, the portfolio is most concentrated in Healthcare at 7.5% of assets, down from 7.7% a quarter earlier, followed by Industrials and Consumer Discretionary.

  • William Blair & Company's largest Q1 2015 buy was First American: 468,238 shares worth $16.7M.
  • William Blair & Company added most to Cerner Corp in Q1 2015, an estimated $197M increase.
  • William Blair & Company's biggest Q1 2015 reduction was PRECISION CASTPARTS CORP, cutting an estimated $146M.
  • William Blair & Company fully exited Global Brokerage, Inc. Class A Common Stock in Q1 2015, selling an estimated $91.3M.
  • William Blair & Company's ten largest holdings make up 7.1% of its $65B portfolio in Q1 2015.
  • William Blair & Company opened 292 new positions and closed 260 in Q1 2015.
  • William Blair & Company's portfolio value rose 5% quarter-over-quarter to $65B.

Based on William Blair & Company's 13F filing for Q1 2015, filed 11 May 2015.