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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
CVLT icon
1401
Commault Systems
CVLT
$6.01B
$203K ﹤0.01%
+2,000
New +$181K
ITRN icon
1402
Ituran Location and Control
ITRN
$1.06B
$203K ﹤0.01%
+7,250
New +$192K
NIC icon
1403
Nicolet Bankshares
NIC
$3.74B
$201K ﹤0.01%
+2,336
New +$187K
MCY icon
1404
Mercury Insurance
MCY
$5.84B
$200K ﹤0.01%
+3,882
New +$171K
DFAT icon
1405
Dimensional US Targeted Value ETF
DFAT
$14.8B
$200K ﹤0.01%
3,680
+957
+35% +$49.3K
DOC icon
1406
Healthpeak Properties
DOC
$14.3B
$198K ﹤0.01%
+10,535
New +$191K
BAB icon
1407
Invesco Taxable Municipal Bond ETF
BAB
$1.01B
$196K ﹤0.01%
7,400
– –
SMWB icon
1408
Similarweb
SMWB
$776M
$195K ﹤0.01%
21,662
+3,621
+20% +$26.8K
GME icon
1409
GameStop
GME
$8.36B
$193K ﹤0.01%
15,389
-200
-1% -$2.9K
EZU icon
1410
iShare MSCI Eurozone ETF
EZU
$9.94B
$192K ﹤0.01%
3,762
-123
-3% -$5.94K
XAR icon
1411
State Street SPDR S&P Aerospace & Defense ETF
XAR
$6.57B
$191K ﹤0.01%
1,362
-5
-0.4% -$671
TILT icon
1412
FlexShares Morningstar US Market Factors Tilt Index Fund
TILT
$2.27B
$190K ﹤0.01%
956
-52
-5% -$9.77K
RNTX
1413
Rein Therapeutics
RNTX
$68.8M
$188K ﹤0.01%
28,297
– –
EMB icon
1414
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$15B
$188K ﹤0.01%
2,092
+35
+2% +$3.08K
HUT
1415
Hut 8
HUT
$10.7B
$186K ﹤0.01%
16,869
-42,500
-72% -$373K
IXC icon
1416
iShares Global Energy ETF
IXC
$2.74B
$186K ﹤0.01%
4,327
– –
JMST icon
1417
JPMorgan Ultra-Short Municipal Income ETF
JMST
$7.15B
$185K ﹤0.01%
3,650
-423
-10% -$21.5K
ITUB icon
1418
Itaú Unibanco
ITUB
$81.1B
$183K ﹤0.01%
+29,995
New +$181K
EMLP icon
1419
First Trust North American Energy Infrastructure Fund
EMLP
$4.16B
$183K ﹤0.01%
6,185
+137
+2% +$3.82K
JMIA
1420
Jumia Technologies
JMIA
$774M
$182K ﹤0.01%
35,600
+22,500
+172% +$101K
SHYG icon
1421
iShares 0-5 Year High Yield Corporate Bond ETF
SHYG
$7.62B
$182K ﹤0.01%
4,268
+2,545
+148% +$108K
GSLC icon
1422
Goldman Sachs ActiveBeta US Large Cap Equity ETF
GSLC
$16B
$179K ﹤0.01%
1,720
-30
-2% -$2.96K
RSPF icon
1423
Invesco S&P 500 Equal Weight Financials ETF
RSPF
$310M
$177K ﹤0.01%
2,750
– –
TAK icon
1424
Takeda Pharmaceutical
TAK
$55.6B
$176K ﹤0.01%
12,649
+777
+7% +$11.3K
RWT
1425
Redwood Trust
RWT
$598M
$176K ﹤0.01%
27,571
-5,467
-17% -$35.7K
55 56
57
58 59

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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.