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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
RHI icon
376
Robert Half
RHI
$4.25B
$6.76M 0.03%
92,228
+4,070
+5% +$309K
GLW icon
377
Corning
GLW
$144B
$6.64M 0.03%
217,925
-6,344
-3% -$207K
BIV icon
378
Vanguard Intermediate-Term Bond ETF
BIV
$28.8B
$6.59M 0.03%
91,099
+926
+1% +$68.5K
C icon
379
Citigroup
C
$231B
$6.58M 0.03%
159,981
-12,721
-7% -$558K
DD icon
380
DuPont de Nemours
DD
$19.5B
$6.57M 0.03%
70,138
+5,195
+8% +$488K
GOGO icon
381
Gogo Inc
GOGO
$383M
$6.56M 0.03%
550,152
+7,138
+1% +$98.6K
VRTX icon
382
Vertex Pharmaceuticals
VRTX
$133B
$6.55M 0.03%
18,846
+581
+3% +$203K
MGK icon
383
Vanguard Morningstar Mega Cap Growth ETF
MGK
$33.7B
$6.54M 0.03%
144,095
+4,665
+3% +$220K
OPRX icon
384
OptimizeRx
OPRX
$132M
$6.51M 0.03%
836,498
-9,318
-1% -$101K
AKAM icon
385
Akamai
AKAM
$17.6B
$6.51M 0.03%
61,081
– –
TEL icon
386
TE Connectivity
TEL
$62B
$6.46M 0.02%
52,316
-383
-0.7% -$51.2K
HSY icon
387
Hershey
HSY
$37B
$6.34M 0.02%
31,673
+2,074
+7% +$464K
STIP icon
388
iShares 0-5 Year TIPS Bond ETF
STIP
$15.9B
$6.33M 0.02%
65,344
-2,598
-4% -$252K
USB icon
389
US Bancorp
USB
$101B
$6.3M 0.02%
190,580
-4,264
-2% -$155K
NEO icon
390
NeoGenomics
NEO
$2.11B
$6.23M 0.02%
506,907
-9,762
-2% -$145K
VBK icon
391
Vanguard Morningstar Small-Cap Growth ETF
VBK
$24.8B
$6.22M 0.02%
29,059
-2,542
-8% -$578K
WPM icon
392
Wheaton Precious Metals
WPM
$61.3B
$6.21M 0.02%
153,023
-8,491
-5% -$366K
WY icon
393
Weyerhaeuser
WY
$17.8B
$6.1M 0.02%
199,098
-2,130
-1% -$70.1K
CRSP icon
394
CRISPR Therapeutics
CRSP
$5.22B
$6.03M 0.02%
132,886
+1
+0% +$52
JLL icon
395
Jones Lang LaSalle
JLL
$16.7B
$5.99M 0.02%
42,428
+1,836
+5% +$300K
PHYS icon
396
Sprott Physical Gold
PHYS
$16B
$5.97M 0.02%
417,146
-37,030
-8% -$556K
IJAN icon
397
Innovator International Developed Power Buffer ETF January
IJAN
$263M
$5.96M 0.02%
213,942
+9,506
+5% +$274K
BILL icon
398
BILL Holdings
BILL
$4.85B
$5.94M 0.02%
54,710
+8,372
+18% +$952K
WSC icon
399
WillScot Mobile Mini Holdings
WSC
$4B
$5.94M 0.02%
142,739
+7,477
+6% +$329K
MET icon
400
MetLife
MET
$61.4B
$5.92M 0.02%
94,052
-7,315
-7% -$456K
14 15
16
17 18

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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.