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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
LRCX icon
651
Lam Research
LRCX
$430B
$2.02M 0.01%
38,140
+6,050
+19% +$297K
SBDS
652
DELISTED
Solo Brands Inc
SBDS
$2.02M 0.01%
7,032
-61
-0.9% -$11.7K
IJJ icon
653
iShares S&P Mid-Cap 400 Value ETF
IJJ
$9.05B
$2.02M 0.01%
19,621
+534
+3% +$57.1K
ALRM icon
654
Alarm.com
ALRM
$2.71B
$2.01M 0.01%
39,962
-1,108
-3% -$57K
SCHA icon
655
Schwab U.S Small- Cap ETF
SCHA
$23.5B
$1.98M 0.01%
94,458
+33,390
+55% +$718K
AMG icon
656
Affiliated Managers Group
AMG
$9.64B
$1.98M 0.01%
13,897
-9
-0.1% -$1.42K
HLNE icon
657
Hamilton Lane
HLNE
$5.76B
$1.96M 0.01%
26,539
+3,303
+14% +$244K
FDS icon
658
Factset
FDS
$9.92B
$1.96M 0.01%
4,717
+2,015
+75% +$839K
THR
659
DELISTED
Thermon Group Holdings
THR
$1.95M 0.01%
+78,395
New +$1.91M
VTIP icon
660
Vanguard Short-Term Inflation-Protected Securities Index Fund
VTIP
$19.8B
$1.94M 0.01%
40,509
-28,521
-41% -$1.34M
GPC icon
661
Genuine Parts
GPC
$18.5B
$1.92M 0.01%
11,490
-29
-0.3% -$4.89K
PCYO icon
662
Pure Cycle
PCYO
$274M
$1.91M 0.01%
202,411
-2,160
-1% -$19.9K
CPB icon
663
Campbell Soup
CPB
$6.91B
$1.88M 0.01%
34,167
+457
+1% +$24.3K
HCP
664
DELISTED
HashiCorp, Inc. Class A Common Stock
HCP
$1.88M 0.01%
64,039
-1,939
-3% -$57.9K
BROS icon
665
Dutch Bros
BROS
$9B
$1.87M 0.01%
59,225
-9,497
-14% -$321K
MMSI icon
666
Merit Medical Systems
MMSI
$5.42B
$1.87M 0.01%
25,237
-1,075
-4% -$75.4K
CLX icon
667
Clorox
CLX
$12.7B
$1.86M 0.01%
11,765
-209
-2% -$31.3K
VNQI icon
668
Vanguard Global ex-US Real Estate ETF
VNQI
$3.52B
$1.86M 0.01%
45,841
-14,334
-24% -$606K
EB
669
DELISTED
Eventbrite
EB
$1.85M 0.01%
215,504
-3,870
-2% -$31.9K
LESL icon
670
Leslie's
LESL
$7.06M
$1.84M 0.01%
8,360
+922
+12% +$239K
AWK icon
671
American Water Works
AWK
$27.1B
$1.83M 0.01%
12,493
-642
-5% -$95.1K
CIGI icon
672
Colliers International
CIGI
$5.28B
$1.83M 0.01%
17,299
+2,026
+13% +$217K
PCAR icon
673
PACCAR
PCAR
$68.7B
$1.82M 0.01%
24,857
+21
+0.1% +$1.5K
HURN icon
674
Huron Consulting
HURN
$2.4B
$1.82M 0.01%
22,590
-2,359
-9% -$171K
FTEC icon
675
Fidelity MSCI Information Technology Index ETF
FTEC
$21.6B
$1.81M 0.01%
15,859
+577
+4% +$60.3K
25 26
27
28 29

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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.