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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
GWH.WS
1776
DELISTED
ESS Tech Inc Warrant
GWH.WS
$25 ﹤0.01%
333
-383
-53% -$30
ADPT icon
1777
Adaptive Biotechnologies
ADPT
$4.02B
– –
-14,649
Closed -$71.8K
AES icon
1778
AES
AES
$10.5B
– –
-11,928
Closed -$230K
AGEN
1779
Agenus
AGEN
$311M
– –
-2,428
Closed -$40.2K
AGGY icon
1780
WisdomTree Yield Enhanced US Aggregate Bond Fund
AGGY
$923M
– –
-13
Closed -$570
AMRC icon
1781
Ameresco
AMRC
$1.47B
– –
-31,662
Closed -$1M
ATRC icon
1782
AtriCure
ATRC
$2.22B
– –
-6,246
Closed -$223K
AZTA icon
1783
Azenta
AZTA
$1.47B
– –
-3,505
Closed -$228K
BC icon
1784
Brunswick
BC
$5.21B
– –
-2,128
Closed -$206K
GENZ
1785
VanEck Digital Native Economy ETF
GENZ
$17.5M
– –
-20
Closed -$846
BMRC icon
1786
Bank of Marin Bancorp
BMRC
$462M
– –
-9,230
Closed -$203K
BUZZ icon
1787
VanEck Social Sentiment ETF
BUZZ
$101M
– –
-22
Closed -$411
BXP icon
1788
Boston Properties
BXP
$10.8B
– –
-2,912
Closed -$204K
CAMT icon
1789
Camtek
CAMT
$8.13B
– –
-4,900
Closed -$340K
CMBS icon
1790
iShares CMBS ETF
CMBS
$472M
– –
-41
Closed -$1.92K
CXM icon
1791
Sprinklr
CXM
$1.58B
– –
-13,338
Closed -$161K
DAVA icon
1792
Endava
DAVA
$162M
– –
-9,236
Closed -$719K
DRVN icon
1793
Driven Brands
DRVN
$2.05B
– –
-10,775
Closed -$154K
EB
1794
DELISTED
Eventbrite
EB
– –
-163,159
Closed -$1.36M
ECH icon
1795
iShares MSCI Chile ETF
ECH
$1.03B
– –
-50
Closed -$1.41K
ENVA icon
1796
Enova International
ENVA
$6.48B
– –
-3,649
Closed -$202K
EPR icon
1797
EPR Properties
EPR
$4.7B
– –
-4,765
Closed -$231K
EQT icon
1798
EQT Corp
EQT
$33.8B
– –
-7,149
Closed -$276K
EWL icon
1799
iShares MSCI Switzerland ETF
EWL
$2.22B
– –
-215
Closed -$10.4K
FCOM icon
1800
Fidelity MSCI Communication Services Index ETF
FCOM
$1.76B
– –
-1,608
Closed -$71.6K
70 71
72
73 74

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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.