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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
+10.07%
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
$31.8B
AUM Growth
+$2.49B
Cap. Flow
+$139M
Cap. Flow %
0.44%
Top 10 Hldgs %
23.43%
Holding
1,869
New
90
Increased
714
Reduced
722
Closed
82

Top Buys

Rank Stock Value
1
UBER icon
Uber
UBER
+$24.2M
2
IOT icon
Samsara
IOT
+$23.9M
3
PRCT icon
Procept Biorobotics
PRCT
+$20.5M
4
ISRG icon
Intuitive Surgical
ISRG
+$19.9M
5
AMZN icon
Amazon
AMZN
+$19.4M

Top Sells

Rank Stock Value
1
SPLK
Splunk Inc
SPLK
+$67.1M
2
MA icon
Mastercard
MA
+$65.4M
3
AON icon
Aon
AON
+$40.3M
4
FLYW icon
Flywire
FLYW
+$25.7M
5
DV icon
DoubleVerify
DV
+$19.5M

Sector Composition

Rank Sector Weight
1 Technology 25.75%
2 Healthcare 17.03%
3 Financials 12.35%
4 Industrials 11.88%
5 Consumer Discretionary 8.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PBW icon
1826
Invesco WilderHill Clean Energy ETF
PBW
$458M
– –
-744
Closed -$22.1K
PRGO icon
1827
Perrigo
PRGO
$1.76B
– –
-7,164
Closed -$231K
PSQ icon
1828
ProShares Short QQQ
PSQ
$642M
– –
-878
Closed -$41.6K
REM icon
1829
iShares Mortgage Real Estate ETF
REM
$543M
– –
-1,300
Closed -$30.7K
RNAC icon
1830
Cartesian Therapeutics
RNAC
$263M
– –
-834
Closed -$17.2K
SCWO icon
1831
374Water
SCWO
$40.6M
– –
-1,000
Closed -$14.2K
SMPL icon
1832
Simply Good Foods
SMPL
$968M
– –
-35,968
Closed -$1.42M
SONO icon
1833
Sonos
SONO
$1.86B
– –
-19,708
Closed -$338K
SPXU icon
1834
ProShares UltraPro Short S&P 500
SPXU
$385M
– –
-8
Closed -$1.38K
STIM icon
1835
Neuronetics
STIM
$223M
– –
-11,379
Closed -$33K
SUN icon
1836
Sunoco
SUN
$14.2B
– –
-3,402
Closed -$204K
SURG icon
1837
SurgePays
SURG
$6.86M
– –
-26,327
Closed -$170K
SYF icon
1838
Synchrony
SYF
$25.8B
– –
-7,534
Closed -$288K
TCRT icon
1839
Alaunos Therapeutics
TCRT
$4.88M
– –
-625
Closed -$6.63K
UFEB icon
1840
Innovator US Equity Ultra Buffer ETF February
UFEB
$241M
– –
-231
Closed -$6.8K
UPRO icon
1841
ProShares UltraPro S&P 500
UPRO
$5.74B
– –
-9
Closed -$510
URBN icon
1842
Urban Outfitters
URBN
$6.63B
– –
-8,424
Closed -$301K
NARI
1843
DELISTED
Inari Medical, Inc. Common Stock
NARI
– –
-3,130
Closed -$203K
RGF
1844
DELISTED
The Real Good Food Company, Inc. Class A Common Stock
RGF
– –
-41,963
Closed -$765K
IBTE
1845
DELISTED
iShares iBonds Dec 2024 Term Treasury ETF
IBTE
– –
-100
Closed -$2.39K
TWKS
1846
DELISTED
Thoughtworks Holding, Inc. Common Stock
TWKS
– –
-101,263
Closed -$487K
SWN
1847
DELISTED
Southwestern Energy Company
SWN
– –
-10,833
Closed -$71K
VLD
1848
DELISTED
Velo3D, Inc.
VLD
– –
-1,090
Closed -$15.2K
EVBG
1849
DELISTED
Everbridge, Inc. Common Stock
EVBG
– –
-83,735
Closed -$2.04M
HRT
1850
DELISTED
HireRight Holdings Corporation
HRT
– –
-175,776
Closed -$2.36M
71 72 73
74
75

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William Blair & Company's Q1 2024 Portfolio in Review

As of Q1 2024, William Blair & Company held 1,869 positions worth $31.8B, up 8.5% from $29.3B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company's Q1 2024 filing shows 90 new, 714 increased, 722 reduced and 82 closed positions. Its largest new stake was Procept Biorobotics: 429,793 shares worth $21.2M. The largest sale was Splunk Inc, an estimated $67.1M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2024 buy was Procept Biorobotics: 429,793 shares worth $21.2M.
  • William Blair & Company added most to Uber in Q1 2024, an estimated $24.2M increase.
  • William Blair & Company's biggest Q1 2024 reduction was Mastercard, cutting an estimated $65.4M.
  • William Blair & Company fully exited Splunk Inc in Q1 2024, selling an estimated $67.1M.
  • William Blair & Company's ten largest holdings make up 23% of its $31.8B portfolio in Q1 2024.
  • William Blair & Company opened 90 new positions and closed 82 in Q1 2024.
  • William Blair & Company's portfolio value rose 8.5% quarter-over-quarter to $31.8B.

Based on William Blair & Company's 13F filing for Q1 2024, filed 9 May 2024.