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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
RIVN icon
351
Rivian
RIVN
$23.1B
$8.55M 0.03%
364,319
-59,825
-14% -$1.12M
EEM icon
352
iShares MSCI Emerging Markets ETF
EEM
$30.4B
$8.48M 0.03%
210,865
-12,235
-5% -$472K
TOST icon
353
Toast
TOST
$19.7B
$8.36M 0.03%
457,957
-1,295,154
-74% -$21.2M
PHO icon
354
Invesco Water Resources ETF
PHO
$2.06B
$8.3M 0.03%
136,356
-143
-0.1% -$7.88K
CB icon
355
Chubb
CB
$132B
$8.21M 0.03%
36,314
+1,319
+4% +$288K
KHC icon
356
Kraft Heinz
KHC
$29.1B
$8.19M 0.03%
221,532
-29,745
-12% -$1.01M
ZM icon
357
Zoom
ZM
$30.8B
$8.04M 0.03%
111,849
-30,274
-21% -$2M
RHI icon
358
Robert Half
RHI
$4.25B
$7.91M 0.03%
89,915
-2,313
-3% -$184K
FROG icon
359
JFrog
FROG
$10.4B
$7.87M 0.03%
+227,454
New +$6.15M
NEO icon
360
NeoGenomics
NEO
$2.11B
$7.78M 0.03%
481,139
-25,768
-5% -$422K
MPC icon
361
Marathon Petroleum
MPC
$97.8B
$7.78M 0.03%
52,413
+2,033
+4% +$302K
GXO icon
362
GXO Logistics
GXO
$5.52B
$7.77M 0.03%
127,066
-4,002
-3% -$224K
JLL icon
363
Jones Lang LaSalle
JLL
$16.7B
$7.76M 0.03%
41,062
-1,366
-3% -$207K
MRSH
364
Marsh
MRSH
$90.1B
$7.72M 0.03%
40,746
-2,464
-6% -$476K
GEHC icon
365
GE HealthCare
GEHC
$32.6B
$7.66M 0.03%
99,036
+18,814
+23% +$1.32M
VUSB icon
366
Vanguard Ultra-Short Bond ETF
VUSB
$9.33B
$7.58M 0.03%
153,277
-2,699
-2% -$133K
WPM icon
367
Wheaton Precious Metals
WPM
$61.3B
$7.52M 0.03%
152,351
-672
-0.4% -$30.4K
ADM icon
368
Archer Daniels Midland
ADM
$38.4B
$7.5M 0.03%
103,914
+7,271
+8% +$532K
LNG icon
369
Cheniere Energy
LNG
$55.4B
$7.48M 0.03%
43,799
+224
+0.5% +$38.5K
TEL icon
370
TE Connectivity
TEL
$62B
$7.47M 0.03%
53,190
+874
+2% +$112K
CP icon
371
Canadian Pacific Kansas City
CP
$81.5B
$7.47M 0.03%
94,427
-205
-0.2% -$15K
C icon
372
Citigroup
C
$231B
$7.46M 0.03%
145,075
-14,906
-9% -$660K
SCHD icon
373
Schwab US Dividend Equity ETF
SCHD
$107B
$7.46M 0.03%
293,949
+52,167
+22% +$1.24M
USB icon
374
US Bancorp
USB
$101B
$7.46M 0.03%
172,324
-18,256
-10% -$667K
U icon
375
Unity
U
$19.6B
$7.33M 0.03%
179,210
-62,632
-26% -$1.93M
13 14
15
16 17

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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.