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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
-1.82%
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
$33.2B
AUM Growth
-$1.22B
Cap. Flow
+$11.1M
Cap. Flow %
0.03%
Top 10 Hldgs %
23.77%
Holding
1,895
New
82
Increased
626
Reduced
808
Closed
94

Top Buys

Rank Stock Value
1
META icon
Meta Platforms (Facebook)
META
+$112M
2
AAON icon
Aaon
AAON
+$104M
3
GEV icon
GE Vernova
GEV
+$77.6M
4
QCOM icon
Qualcomm
QCOM
+$47M
5
WM icon
Waste Management
WM
+$44.3M

Top Sells

Rank Stock Value
1
INTU icon
Intuit
INTU
+$65.9M
2
POOL icon
Pool Corp
POOL
+$64.7M
3
DHR icon
Danaher
DHR
+$59.8M
4
ZTS icon
Zoetis
ZTS
+$57.9M
5
SCHW
Charles Schwab
SCHW
+$44.5M

Sector Composition

Rank Sector Weight
1 Technology 26.23%
2 Financials 14.3%
3 Healthcare 12.58%
4 Industrials 12.51%
5 Consumer Discretionary 7.94%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ADI icon
376
Analog Devices
ADI
$187B
$7.99M 0.02%
39,610
-2,546
-6% -$550K
MAR icon
377
Marriott International
MAR
$92.5B
$7.8M 0.02%
32,731
-2,588
-7% -$703K
MELI icon
378
Mercado Libre
MELI
$92.7B
$7.79M 0.02%
3,993
+481
+14% +$955K
PAR icon
379
PAR Technology
PAR
$741M
$7.78M 0.02%
126,887
-2,050
-2% -$138K
BP icon
380
BP
BP
$111B
$7.69M 0.02%
227,690
+18,933
+9% +$618K
PHO icon
381
Invesco Water Resources ETF
PHO
$2.06B
$7.69M 0.02%
119,229
-333
-0.3% -$22.2K
ZM icon
382
Zoom
ZM
$30.8B
$7.54M 0.02%
102,215
+12,663
+14% +$1.01M
RSG icon
383
Republic Services
RSG
$65.6B
$7.5M 0.02%
30,958
-349
-1% -$78.3K
HURN icon
384
Huron Consulting
HURN
$2.39B
$7.5M 0.02%
52,250
+42,676
+446% +$5.74M
EFV icon
385
iShares MSCI EAFE Value ETF
EFV
$30.1B
$7.49M 0.02%
127,140
+21,553
+20% +$1.22M
TT icon
386
Trane Technologies
TT
$105B
$7.49M 0.02%
22,230
+5,128
+30% +$1.85M
INTC icon
387
Intel
INTC
$509B
$7.47M 0.02%
328,879
-4,960
-1% -$109K
VKTX icon
388
Viking Therapeutics
VKTX
$3.97B
$7.45M 0.02%
308,565
+36,696
+13% +$1.16M
HUBB icon
389
Hubbell
HUBB
$27.1B
$7.42M 0.02%
22,420
+666
+3% +$258K
MDT icon
390
Medtronic
MDT
$116B
$7.39M 0.02%
82,237
-12,295
-13% -$1.1M
CGGR icon
391
Capital Group Growth ETF
CGGR
$25B
$7.36M 0.02%
214,801
+25,979
+14% +$972K
MPC icon
392
Marathon Petroleum
MPC
$97.8B
$7.31M 0.02%
50,169
-2,982
-6% -$441K
GIS icon
393
General Mills
GIS
$20.4B
$7.25M 0.02%
121,199
-6,071
-5% -$365K
IVE icon
394
iShares S&P 500 Value ETF
IVE
$50B
$7.24M 0.02%
37,992
-109
-0.3% -$21.1K
PHYS icon
395
Sprott Physical Gold
PHYS
$16B
$7.22M 0.02%
300,205
+31,600
+12% +$701K
VBK icon
396
Vanguard Morningstar Small-Cap Growth ETF
VBK
$24.8B
$7.21M 0.02%
28,633
-882
-3% -$244K
LRN icon
397
Stride
LRN
$3.27B
$7.2M 0.02%
56,942
-993
-2% -$126K
XLC icon
398
State Street Communication Services Select Sector SPDR ETF
XLC
$22.3B
$7.2M 0.02%
74,603
-560
-0.7% -$55.9K
VPU
399
Vanguard Utilities ETF
VPU
$8.48B
$7.17M 0.02%
41,961
+7,918
+23% +$1.34M
TDUP icon
400
ThredUp
TDUP
$405M
$7.16M 0.02%
2,969,725
+939,449
+46% +$2.16M
14 15
16
17 18

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William Blair & Company's Q1 2025 Portfolio in Review

As of Q1 2025, William Blair & Company held 1,895 positions worth $33.2B, down 3.6% from $34.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2025 filing shows 82 new, 626 increased, 808 reduced and 94 closed positions. Its largest new stake was CCC Intelligent Solutions: 320,989 shares worth $2.9M. The largest sale was Intuit, an estimated $65.9M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 28% a quarter earlier, followed by Financials and Healthcare.

  • William Blair & Company's largest Q1 2025 buy was CCC Intelligent Solutions: 320,989 shares worth $2.9M.
  • William Blair & Company added most to Meta Platforms (Facebook) in Q1 2025, an estimated $112M increase.
  • William Blair & Company's biggest Q1 2025 reduction was Intuit, cutting an estimated $65.9M.
  • William Blair & Company fully exited Smartsheet Inc. in Q1 2025, selling an estimated $3.52M.
  • William Blair & Company's ten largest holdings make up 24% of its $33.2B portfolio in Q1 2025.
  • William Blair & Company opened 82 new positions and closed 94 in Q1 2025.
  • William Blair & Company's portfolio value fell 3.6% quarter-over-quarter to $33.2B.

Based on William Blair & Company's 13F filing for Q1 2025, filed 9 May 2025.