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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
-3.85%
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
$26.1B
AUM Growth
-$1.22B
Cap. Flow
+$114M
Cap. Flow %
0.44%
Top 10 Hldgs %
23.71%
Holding
1,877
New
67
Increased
674
Reduced
719
Closed
85

Top Buys

Rank Stock Value
1
KVUE icon
Kenvue
KVUE
+$32.2M
2
LZ icon
LegalZoom.com
LZ
+$26.6M
3
CRWD icon
CrowdStrike
CRWD
+$24M
4
CSGP icon
CoStar Group
CSGP
+$20.8M
5
GNRC icon
Generac Holdings
GNRC
+$18.3M

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$37.6M
2
PODD icon
Insulet
PODD
+$37.3M
3
NVDA icon
NVIDIA
NVDA
+$24.8M
4
ATVI
Activision Blizzard
ATVI
+$20.6M
5
SBUX icon
Starbucks
SBUX
+$17.8M

Sector Composition

Rank Sector Weight
1 Technology 25.36%
2 Healthcare 17.61%
3 Financials 12.07%
4 Industrials 11.66%
5 Consumer Discretionary 8.39%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
WEC icon
526
WEC Energy
WEC
$35.8B
$3.35M 0.01%
41,576
-976
-2% -$84.8K
BMRN icon
527
BioMarin Pharmaceuticals
BMRN
$13.4B
$3.31M 0.01%
37,399
+552
+1% +$49.1K
TT icon
528
Trane Technologies
TT
$106B
$3.31M 0.01%
16,301
-70
-0.4% -$14K
PCOR icon
529
Procore
PCOR
$8.77B
$3.3M 0.01%
50,526
+42,905
+563% +$2.87M
VDC icon
530
Vanguard Consumer Staples ETF
VDC
$8.02B
$3.3M 0.01%
18,043
+69
+0.4% +$13.3K
ESGV icon
531
Vanguard ESG US Stock ETF
ESGV
$13.7B
$3.29M 0.01%
43,732
+3,046
+7% +$239K
DDOG icon
532
Datadog
DDOG
$89.5B
$3.29M 0.01%
36,080
-16,555
-31% -$1.64M
PGX icon
533
Invesco Preferred ETF
PGX
$3.77B
$3.28M 0.01%
299,726
+23,785
+9% +$266K
ROKU icon
534
Roku
ROKU
$22.8B
$3.26M 0.01%
46,233
-2,651
-5% -$205K
III icon
535
Information Services Group
III
$244M
$3.26M 0.01%
744,639
+23,492
+3% +$117K
INCY icon
536
Incyte
INCY
$24.4B
$3.26M 0.01%
56,410
-25,632
-31% -$1.62M
QLYS icon
537
Qualys
QLYS
$6.5B
$3.24M 0.01%
21,265
-9
-0% -$1.29K
BROS icon
538
Dutch Bros
BROS
$9.01B
$3.23M 0.01%
138,825
+19,100
+16% +$544K
XLI icon
539
State Street Industrial Select Sector SPDR ETF
XLI
$34.6B
$3.22M 0.01%
31,785
+409
+1% +$43.8K
VDE icon
540
Vanguard Energy ETF
VDE
$10.4B
$3.22M 0.01%
25,407
+1,849
+8% +$226K
MANH icon
541
Manhattan Associates
MANH
$11.4B
$3.22M 0.01%
16,286
-46
-0.3% -$8.98K
IGSB icon
542
iShares 1-5 Year Investment Grade Corporate Bond ETF
IGSB
$23.4B
$3.22M 0.01%
64,595
-3,291
-5% -$165K
SOXX icon
543
iShares Semiconductor ETF
SOXX
$47.4B
$3.21M 0.01%
20,352
+819
+4% +$136K
MRCC
544
DELISTED
Monroe Capital Corp
MRCC
$3.17M 0.01%
426,057
-2,597
-0.6% -$20.5K
MTN icon
545
Vail Resorts
MTN
$5.22B
$3.16M 0.01%
14,240
-5,024
-26% -$1.19M
AIRG icon
546
Airgain
AIRG
$70.1M
$3.13M 0.01%
852,654
-17,555
-2% -$80K
PBH icon
547
Prestige Consumer Healthcare
PBH
$2.45B
$3.1M 0.01%
54,158
+4,534
+9% +$274K
COWZ icon
548
Pacer US Cash Cows 100 ETF
COWZ
$19.6B
$3.09M 0.01%
62,608
+4,394
+8% +$220K
LRN icon
549
Stride
LRN
$3.37B
$3.09M 0.01%
+68,696
New +$2.79M
RCKT icon
550
Rocket Pharmaceuticals
RCKT
$371M
$3.07M 0.01%
+149,789
New +$2.72M
20 21
22
23 24

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William Blair & Company's Q3 2023 Portfolio in Review

As of Q3 2023, William Blair & Company held 1,877 positions worth $26.1B, down 4.5% from $27.3B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q3 2023 filing shows 67 new, 674 increased, 719 reduced and 85 closed positions. Its largest new stake was Kenvue: 1,391,743 shares worth $27.9M. The largest sale was Apple, an estimated $37.6M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, down from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2023 buy was Kenvue: 1,391,743 shares worth $27.9M.
  • William Blair & Company added most to LegalZoom.com in Q3 2023, an estimated $26.6M increase.
  • William Blair & Company's biggest Q3 2023 reduction was Apple, cutting an estimated $37.6M.
  • William Blair & Company fully exited Activision Blizzard in Q3 2023, selling an estimated $20.6M.
  • William Blair & Company's ten largest holdings make up 24% of its $26.1B portfolio in Q3 2023.
  • William Blair & Company opened 67 new positions and closed 85 in Q3 2023.
  • William Blair & Company's portfolio value fell 4.5% quarter-over-quarter to $26.1B.

Based on William Blair & Company's 13F filing for Q3 2023, filed 9 Nov 2023.