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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
+14.12%
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
$29.3B
AUM Growth
+$3.27B
Cap. Flow
-$91M
Cap. Flow %
-0.31%
Top 10 Hldgs %
24.41%
Holding
1,872
New
83
Increased
624
Reduced
816
Closed
87

Top Buys

Rank Stock Value
1
GWRE icon
Guidewire Software
GWRE
+$37.5M
2
SCHW
Charles Schwab
SCHW
+$37.1M
3
VLTO icon
Veralto
VLTO
+$17.1M
4
VRTX icon
Vertex Pharmaceuticals
VRTX
+$16.7M
5
CSGP icon
CoStar Group
CSGP
+$16.3M

Top Sells

Rank Stock Value
1
DHR icon
Danaher
DHR
+$37.6M
2
IRTC icon
iRhythm Holdings
IRTC
+$26.7M
3
DE icon
Deere & Co
DE
+$22.6M
4
TOST icon
Toast
TOST
+$21.2M
5
KO icon
Coca-Cola
KO
+$20.3M

Sector Composition

Rank Sector Weight
1 Technology 26.35%
2 Healthcare 17.08%
3 Financials 12.09%
4 Industrials 11.7%
5 Consumer Discretionary 8.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
IDCC icon
1101
InterDigital
IDCC
$8.88B
$443K ﹤0.01%
4,080
– –
CWAN
1102
DELISTED
Clearwater Analytics
CWAN
$441K ﹤0.01%
+22,039
New +$434K
OBDC icon
1103
Blue Owl Capital
OBDC
$5.87B
$440K ﹤0.01%
29,814
+352
+1% +$5K
RRX icon
1104
Regal Rexnord
RRX
$11.4B
$440K ﹤0.01%
2,972
-218
-7% -$27.5K
APTV icon
1105
Aptiv
APTV
$10.2B
$440K ﹤0.01%
4,900
-487
-9% -$41.9K
BOH icon
1106
Bank of Hawaii
BOH
$3.15B
$439K ﹤0.01%
6,058
– –
CNP icon
1107
CenterPoint Energy
CNP
$26.7B
$439K ﹤0.01%
15,354
+151
+1% +$4.2K
GAP
1108
The Gap Inc
GAP
$7.34B
$437K ﹤0.01%
20,887
-4
-0% -$64
MTTR
1109
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
$433K ﹤0.01%
161,138
-60,000
-27% -$144K
SPOT icon
1110
Spotify
SPOT
$102B
$429K ﹤0.01%
2,285
-182
-7% -$31.8K
BNS icon
1111
Scotiabank
BNS
$111B
$428K ﹤0.01%
8,786
-1,502
-15% -$66.1K
AXTA icon
1112
Axalta
AXTA
$7.93B
$427K ﹤0.01%
12,563
+2,060
+20% +$61.7K
ZS icon
1113
Zscaler
ZS
$30.4B
$422K ﹤0.01%
1,906
+295
+18% +$54.6K
BF.B icon
1114
Brown-Forman Class B
BF.B
$12.9B
$422K ﹤0.01%
7,386
+702
+11% +$40.2K
CASY icon
1115
Casey's General Stores
CASY
$31.6B
$421K ﹤0.01%
1,533
-41
-3% -$11.2K
CABA icon
1116
Cabaletta Bio
CABA
$442M
$421K ﹤0.01%
+18,538
New +$312K
BIL icon
1117
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$46.7B
$419K ﹤0.01%
4,589
-1,105
-19% -$101K
IYJ icon
1118
iShares US Industrials ETF
IYJ
$1.96B
$419K ﹤0.01%
3,664
-204
-5% -$21.3K
MPLX icon
1119
MPLX
MPLX
$59.6B
$419K ﹤0.01%
11,398
+56
+0.5% +$2.01K
EWU icon
1120
iShares MSCI United Kingdom ETF
EWU
$4.13B
$414K ﹤0.01%
12,539
-850
-6% -$27.1K
SCHP icon
1121
Schwab US TIPS ETF
SCHP
$16.2B
$410K ﹤0.01%
15,718
-320
-2% -$8.14K
WFC.PRL icon
1122
Wells Fargo 7.5% Non Cumv Perp Conv
WFC.PRL
$4.66B
$409K ﹤0.01%
342
-11
-3% -$12.3K
MTX icon
1123
Minerals Technologies
MTX
$2.26B
$407K ﹤0.01%
5,710
+5
+0.1% +$296
BUD icon
1124
AB InBev
BUD
$158B
$407K ﹤0.01%
6,293
-547
-8% -$32.3K
EMN icon
1125
Eastman Chemical
EMN
$8.43B
$407K ﹤0.01%
4,527
-425
-9% -$33.9K
43 44
45
46 47

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William Blair & Company's Q4 2023 Portfolio in Review

As of Q4 2023, William Blair & Company held 1,872 positions worth $29.3B, up 13% from $26.1B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q4 2023 filing shows 83 new, 624 increased, 816 reduced and 87 closed positions. Its largest new stake was Veralto: 229,539 shares worth $18.9M. The largest sale was Danaher, an estimated $37.6M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2023 buy was Veralto: 229,539 shares worth $18.9M.
  • William Blair & Company added most to Guidewire Software in Q4 2023, an estimated $37.5M increase.
  • William Blair & Company's biggest Q4 2023 reduction was Danaher, cutting an estimated $37.6M.
  • William Blair & Company fully exited Seagen Inc. Common Stock in Q4 2023, selling an estimated $13.8M.
  • William Blair & Company's ten largest holdings make up 24% of its $29.3B portfolio in Q4 2023.
  • William Blair & Company opened 83 new positions and closed 87 in Q4 2023.
  • William Blair & Company's portfolio value rose 13% quarter-over-quarter to $29.3B.

Based on William Blair & Company's 13F filing for Q4 2023, filed 12 Feb 2024.