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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
VOOG icon
926
Vanguard S&P 500 Growth ETF
VOOG
$27.4B
$803K ﹤0.01%
17,784
+456
+3% +$19.5K
IFF icon
927
International Flavors & Fragrances
IFF
$21.4B
$801K ﹤0.01%
9,893
-35
-0.4% -$2.53K
BPOP icon
928
Popular Inc
BPOP
$11.3B
$801K ﹤0.01%
9,759
+109
+1% +$7.71K
FTCS icon
929
First Trust Capital Strength ETF
FTCS
$8.02B
$792K ﹤0.01%
9,896
+124
+1% +$9.44K
HUT
930
Hut 8
HUT
$10.2B
$792K ﹤0.01%
+59,369
New +$633K
ORI icon
931
Old Republic International
ORI
$10.3B
$779K ﹤0.01%
26,484
-249
-0.9% -$7K
PEG icon
932
Public Service Enterprise Group
PEG
$37.8B
$778K ﹤0.01%
12,723
+768
+6% +$47.2K
ST icon
933
Sensata Technologies
ST
$6.61B
$778K ﹤0.01%
20,700
+9,057
+78% +$313K
HUBG icon
934
HUB Group
HUBG
$2.55B
$776K ﹤0.01%
16,880
-1,200
-7% -$47.1K
HAIN icon
935
Hain Celestial
HAIN
$53.9M
$775K ﹤0.01%
70,798
-3,745
-5% -$40.4K
QYLD icon
936
Global X NASDAQ-100 Covered Call ETF
QYLD
$8.29B
$775K ﹤0.01%
44,681
+5,136
+13% +$87.5K
GDXJ icon
937
VanEck Junior Gold Miners ETF
GDXJ
$8.33B
$775K ﹤0.01%
20,430
-100
-0.5% -$3.53K
DKS icon
938
Dick's Sporting Goods
DKS
$18.1B
$769K ﹤0.01%
5,234
-172
-3% -$20.9K
FBIN icon
939
Fortune Brands Innovations
FBIN
$5.78B
$768K ﹤0.01%
10,090
+1,202
+14% +$79.1K
MTB icon
940
M&T Bank
MTB
$36.6B
$768K ﹤0.01%
5,601
-1,020
-15% -$128K
RGF
941
DELISTED
The Real Good Food Company, Inc. Class A Common Stock
RGF
$765K ﹤0.01%
41,963
+4,242
+11% +$105K
KRYS icon
942
Krystal Biotech
KRYS
$9.72B
$763K ﹤0.01%
6,152
+20
+0.3% +$2.22K
IBRX icon
943
ImmunityBio
IBRX
$8.11B
$763K ﹤0.01%
152,012
-10,450
-6% -$32.8K
ELAN icon
944
Elanco Animal Health
ELAN
$11.2B
$761K ﹤0.01%
51,074
+19,410
+61% +$220K
GSK icon
945
GSK
GSK
$101B
$758K ﹤0.01%
20,449
-3,159
-13% -$113K
EEMA icon
946
iShares MSCI Emerging Markets Asia ETF
EEMA
$871M
$757K ﹤0.01%
11,454
-755
-6% -$48.2K
ICSH icon
947
iShares Ultra Short Duration Bond Active ETF
ICSH
$8.4B
$754K ﹤0.01%
14,969
+3,476
+30% +$175K
DRS icon
948
Leonardo DRS
DRS
$11.9B
$750K ﹤0.01%
37,450
+800
+2% +$15.1K
SHM icon
949
State Street SPDR Nuveen ICE Short Term Municipal Bond ETF
SHM
$3.48B
$750K ﹤0.01%
15,685
-5,585
-26% -$262K
PARA
950
DELISTED
Paramount Global Class B
PARA
$745K ﹤0.01%
50,387
-15,349
-23% -$205K
36 37
38
39 40

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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.