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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
VOYA icon
1151
Voya Financial
VOYA
$9.15B
$373K ﹤0.01%
5,108
-324
-6% -$22.6K
CCL icon
1152
Carnival Corporation Ltd
CCL
$39.1B
$372K ﹤0.01%
20,043
+149
+0.7% +$2.16K
ARW icon
1153
Arrow Electronics
ARW
$10.6B
$372K ﹤0.01%
3,039
+761
+33% +$90.8K
EXG icon
1154
Eaton Vance Tax-Managed Global Diversified Equity Income Fund
EXG
$3.1B
$371K ﹤0.01%
48,119
– –
EXLS icon
1155
EXL Service
EXLS
$5.35B
$371K ﹤0.01%
+12,017
New +$340K
HII icon
1156
Huntington Ingalls Industries
HII
$12.8B
$370K ﹤0.01%
+1,426
New +$333K
AOS icon
1157
A.O. Smith
AOS
$8.5B
$370K ﹤0.01%
4,490
+936
+26% +$69K
INVH icon
1158
Invitation Homes
INVH
$18B
$366K ﹤0.01%
10,742
+12
+0.1% +$391
KVYO icon
1159
Klaviyo
KVYO
$5.55B
$366K ﹤0.01%
+13,158
New +$389K
ABM icon
1160
ABM Industries
ABM
$2.82B
$364K ﹤0.01%
8,126
– –
TLRY icon
1161
Tilray
TLRY
$643M
$364K ﹤0.01%
15,829
-1
-0% -$19
VICR icon
1162
Vicor
VICR
$10.5B
$363K ﹤0.01%
8,080
– –
RSPG icon
1163
Invesco S&P 500 Equal Weight Energy ETF
RSPG
$596M
$363K ﹤0.01%
4,920
+155
+3% +$11.6K
PNQI icon
1164
Invesco NASDAQ Internet ETF
PNQI
$545M
$362K ﹤0.01%
10,045
– –
TKR icon
1165
Timken Company
TKR
$9.07B
$362K ﹤0.01%
4,519
+330
+8% +$24.3K
IXN icon
1166
iShares Global Tech ETF
IXN
$9.48B
$359K ﹤0.01%
5,271
+25
+0.5% +$1.57K
BAC.PRL icon
1167
Bank of America Series L
BAC.PRL
$4B
$359K ﹤0.01%
298
-10
-3% -$11.2K
PFG icon
1168
Principal Financial Group
PFG
$24.6B
$359K ﹤0.01%
4,563
+269
+6% +$19.5K
AIR icon
1169
AAR Corp
AIR
$5.73B
$359K ﹤0.01%
+5,751
New +$369K
MRO
1170
DELISTED
Marathon Oil Corporation
MRO
$359K ﹤0.01%
14,842
+1
+0% +$26
KRE icon
1171
State Street SPDR S&P Regional Banking ETF
KRE
$4.66B
$358K ﹤0.01%
6,836
+2,697
+65% +$121K
IYE icon
1172
iShares US Energy ETF
IYE
$1.8B
$355K ﹤0.01%
8,035
-6
-0.1% -$270
PKG icon
1173
Packaging Corp of America
PKG
$22.9B
$352K ﹤0.01%
2,160
+209
+11% +$32.9K
GL icon
1174
Globe Life
GL
$14.1B
$352K ﹤0.01%
2,890
+20
+0.7% +$2.35K
AN icon
1175
AutoNation
AN
$6.89B
$351K ﹤0.01%
2,336
+308
+15% +$42.5K
45 46
47
48 49

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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.