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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
PLNT icon
301
Planet Fitness
PLNT
$3.65B
$12.3M 0.04%
126,853
-26,339
-17% -$2.65M
IWR icon
302
iShares Russell Mid-Cap ETF
IWR
$57.9B
$12.1M 0.04%
142,435
-1,412
-1% -$126K
SPHQ icon
303
Invesco S&P 500 Quality ETF
SPHQ
$19.9B
$12.1M 0.04%
181,958
+19,358
+12% +$1.33M
PYPL icon
304
PayPal
PYPL
$50.6B
$12M 0.04%
184,395
-18,533
-9% -$1.44M
AGG icon
305
iShares Core US Aggregate Bond ETF
AGG
$138B
$12M 0.04%
121,292
-5,699
-4% -$557K
BSX icon
306
Boston Scientific
BSX
$74.5B
$11.9M 0.04%
117,942
+95,505
+426% +$9.62M
LNG icon
307
Cheniere Energy
LNG
$55.4B
$11.7M 0.04%
50,746
+1,320
+3% +$297K
ALGN icon
308
Align Technology
ALGN
$12.4B
$11.7M 0.04%
73,607
-1,842
-2% -$362K
TEAM icon
309
Atlassian
TEAM
$39.4B
$11.5M 0.03%
54,320
-147
-0.3% -$38.8K
C icon
310
Citigroup
C
$231B
$11.4M 0.03%
161,190
+9,047
+6% +$690K
XBI icon
311
State Street SPDR S&P Biotech ETF
XBI
$10.5B
$11.2M 0.03%
137,521
-2,233
-2% -$200K
DUK icon
312
Duke Energy
DUK
$96.3B
$11.1M 0.03%
91,188
-2,346
-3% -$267K
GCMG icon
313
GCM Grosvenor
GCMG
$2.82B
$11.1M 0.03%
840,019
+614,324
+272% +$8.21M
BROS icon
314
Dutch Bros
BROS
$8.91B
$11.1M 0.03%
179,103
+59,542
+50% +$3.92M
TRMB icon
315
Trimble
TRMB
$13.1B
$11M 0.03%
167,931
-4,717
-3% -$339K
MO icon
316
Altria Group
MO
$107B
$11M 0.03%
183,350
-93
-0.1% -$5.08K
BLBD icon
317
Blue Bird Corp
BLBD
$2.04B
$11M 0.03%
338,513
-2,492
-0.7% -$91.1K
MRSH
318
Marsh
MRSH
$90.1B
$10.9M 0.03%
44,761
+1,998
+5% +$453K
EXEL icon
319
Exelixis
EXEL
$12.5B
$10.8M 0.03%
292,671
-164,899
-36% -$5.88M
ET icon
320
Energy Transfer Partners
ET
$72.1B
$10.6M 0.03%
571,952
+56,660
+11% +$1.1M
VOT icon
321
Vanguard Morningstar Mid-Cap Growth ETF
VOT
$20B
$10.6M 0.03%
43,422
+131
+0.3% +$34.1K
TPL icon
322
Texas Pacific Land
TPL
$23.6B
$10.6M 0.03%
23,985
-1,056
-4% -$471K
TSCO icon
323
Tractor Supply
TSCO
$19B
$10.6M 0.03%
192,045
-85,335
-31% -$4.67M
SMG icon
324
ScottsMiracle-Gro
SMG
$3.62B
$10.5M 0.03%
190,607
-46,657
-20% -$3.02M
VBR icon
325
Vanguard Morningstar Small-Cap Value ETF
VBR
$38.1B
$10.3M 0.03%
55,174
+1,259
+2% +$249K
11 12
13
14 15

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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.