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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
+10.3%
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
$25B
AUM Growth
+$2.04B
Cap. Flow
+$116M
Cap. Flow %
0.46%
Top 10 Hldgs %
23.68%
Holding
1,879
New
69
Increased
680
Reduced
748
Closed
78

Top Buys

Rank Stock Value
1
NEOG icon
Neogen
NEOG
+$45.2M
2
PGR icon
Progressive
PGR
+$34.8M
3
TOST icon
Toast
TOST
+$33.8M
4
PWSC
PowerSchool Holdings, Inc.
PWSC
+$33.4M
5
UBER icon
Uber
UBER
+$30.4M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$54.2M
2
LULU icon
lululemon athletica
LULU
+$53.4M
3
PYPL icon
PayPal
PYPL
+$45.8M
4
BAH icon
Booz Allen Hamilton
BAH
+$20.2M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$17.8M

Sector Composition

Rank Sector Weight
1 Technology 24.61%
2 Healthcare 19.42%
3 Financials 11.75%
4 Industrials 11.37%
5 Consumer Discretionary 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MTB icon
901
M&T Bank
MTB
$36.6B
$767K ﹤0.01%
6,413
+2,305
+56% +$335K
HUBG icon
902
HUB Group
HUBG
$2.55B
$759K ﹤0.01%
18,080
-30
-0.2% -$1.31K
VT icon
903
Vanguard Total World Stock ETF
VT
$81.9B
$758K ﹤0.01%
8,231
+587
+8% +$53.2K
EGRX
904
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
$755K ﹤0.01%
26,625
-12,547
-32% -$372K
LGND icon
905
Ligand Pharmaceuticals
LGND
$5.76B
$752K ﹤0.01%
10,226
-5
-0% -$355
PAYC icon
906
Paycom
PAYC
$10.1B
$750K ﹤0.01%
2,466
-296
-11% -$89.1K
IBDO
907
DELISTED
iShares iBonds Dec 2023 Term Corporate ETF
IBDO
$750K ﹤0.01%
29,755
– –
APPN icon
908
Appian
APPN
$2.65B
$749K ﹤0.01%
16,868
+160
+1% +$6.47K
IHE icon
909
iShares US Pharmaceuticals ETF
IHE
$1.65B
$748K ﹤0.01%
12,795
-384
-3% -$23.1K
ACWI icon
910
iShares MSCI ACWI ETF
ACWI
$33.6B
$747K ﹤0.01%
8,194
-147
-2% -$13.1K
ECPG icon
911
Encore Capital Group
ECPG
$2.15B
$745K ﹤0.01%
14,762
-200
-1% -$10.5K
ROST icon
912
Ross Stores
ROST
$78.6B
$743K ﹤0.01%
7,003
+92
+1% +$10.3K
NGG icon
913
National Grid
NGG
$81.6B
$740K ﹤0.01%
11,553
-297
-3% -$17.8K
INGN icon
914
Inogen
INGN
$154M
$738K ﹤0.01%
59,142
-25,758
-30% -$493K
AIG icon
915
American International
AIG
$39.8B
$738K ﹤0.01%
14,649
-54,262
-79% -$3.17M
PD icon
916
PagerDuty
PD
$932M
$737K ﹤0.01%
21,055
+2,395
+13% +$70.3K
WDC icon
917
Western Digital
WDC
$168B
$736K ﹤0.01%
25,841
-1,165
-4% -$34.2K
SEDG icon
918
SolarEdge
SEDG
$1.98B
$735K ﹤0.01%
2,417
-759
-24% -$231K
IEX icon
919
IDEX
IEX
$17.6B
$731K ﹤0.01%
3,165
+538
+20% +$122K
IEI icon
920
iShares 3-7 Year Treasury Bond ETF
IEI
$17.7B
$730K ﹤0.01%
6,206
+761
+14% +$88.4K
FTCS icon
921
First Trust Capital Strength ETF
FTCS
$8.02B
$724K ﹤0.01%
9,922
– –
OXY icon
922
Occidental Petroleum
OXY
$57.7B
$712K ﹤0.01%
11,405
+664
+6% +$41.3K
BIL icon
923
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$46.7B
$712K ﹤0.01%
7,752
+2,322
+43% +$213K
IR icon
924
Ingersoll Rand
IR
$32.7B
$709K ﹤0.01%
12,193
+1,832
+18% +$103K
WRK
925
DELISTED
WestRock Company
WRK
$709K ﹤0.01%
23,273
+20
+0.1% +$660
35 36
37
38 39

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William Blair & Company's Q1 2023 Portfolio in Review

As of Q1 2023, William Blair & Company held 1,879 positions worth $25B, up 8.9% from $23B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2023 filing shows 69 new, 680 increased, 748 reduced and 78 closed positions. Its largest new stake was Neogen: 2,404,277 shares worth $44.5M. The largest sale was Alphabet (Google) Class C, an estimated $54.2M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, up from 22% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2023 buy was Neogen: 2,404,277 shares worth $44.5M.
  • William Blair & Company added most to Progressive in Q1 2023, an estimated $34.8M increase.
  • William Blair & Company's biggest Q1 2023 reduction was Alphabet (Google) Class C, cutting an estimated $54.2M.
  • William Blair & Company fully exited Coupa Software Incorporated in Q1 2023, selling an estimated $2.65M.
  • William Blair & Company's ten largest holdings make up 24% of its $25B portfolio in Q1 2023.
  • William Blair & Company opened 69 new positions and closed 78 in Q1 2023.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $25B.

Based on William Blair & Company's 13F filing for Q1 2023, filed 12 May 2023.