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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
FND icon
426
Floor & Decor
FND
$6.32B
$6.35M 0.02%
78,895
+3,105
+4% +$293K
DCI icon
427
Donaldson
DCI
$11.2B
$6.32M 0.02%
94,262
+50
+0.1% +$3.46K
XLY icon
428
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$23.4B
$6.15M 0.02%
62,254
+21,326
+52% +$2.31M
TRU icon
429
TransUnion
TRU
$15.2B
$6.13M 0.02%
73,863
+58,156
+370% +$5.31M
AXSM icon
430
Axsome Therapeutics
AXSM
$11.2B
$6.13M 0.02%
52,529
-1,853
-3% -$211K
AMP icon
431
Ameriprise Financial
AMP
$49.9B
$6.12M 0.02%
12,651
-2,279
-15% -$1.2M
UL icon
432
Unilever
UL
$133B
$6.12M 0.02%
91,333
-13,643
-13% -$880K
UCB
433
United Community Banks
UCB
$4.39B
$6.09M 0.02%
216,622
+179
+0.1% +$5.6K
CP icon
434
Canadian Pacific Kansas City
CP
$81.5B
$6.09M 0.02%
86,735
-3,619
-4% -$275K
VIGI icon
435
Vanguard International Dividend Appreciation ETF
VIGI
$9.28B
$6.06M 0.02%
73,058
-100
-0.1% -$8.31K
TECH icon
436
Bio-Techne
TECH
$11.3B
$5.98M 0.02%
101,995
-12,134
-11% -$822K
OEF icon
437
iShares S&P 100 ETF
OEF
$20.4B
$5.97M 0.02%
22,052
+563
+3% +$162K
TENB icon
438
Tenable Holdings
TENB
$4.08B
$5.95M 0.02%
169,986
-42,131
-20% -$1.65M
EVH icon
439
Evolent Health
EVH
$471M
$5.92M 0.02%
624,640
-1,034,348
-62% -$10.4M
NOBL icon
440
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$11.9B
$5.92M 0.02%
115,782
-3,538
-3% -$180K
BN icon
441
Brookfield
BN
$110B
$5.88M 0.02%
168,261
-3,849
-2% -$145K
IWP icon
442
iShares Russell Mid-Cap Growth ETF
IWP
$21B
$5.88M 0.02%
50,007
+739
+1% +$95K
DD icon
443
DuPont de Nemours
DD
$19.5B
$5.87M 0.02%
62,597
-288
-0.5% -$28.1K
PLTR icon
444
Palantir
PLTR
$411B
$5.86M 0.02%
69,395
-2,034
-3% -$179K
VCIT icon
445
Vanguard Intermediate-Term Corporate Bond ETF
VCIT
$67.6B
$5.85M 0.02%
71,491
+3,494
+5% +$283K
AVAV icon
446
AeroVironment
AVAV
$9.81B
$5.84M 0.02%
49,000
+22,099
+82% +$3.39M
PJUN icon
447
Innovator US Equity Power Buffer ETF June
PJUN
$976M
$5.84M 0.02%
157,799
+4,539
+3% +$171K
ESGV icon
448
Vanguard ESG US Stock ETF
ESGV
$13.6B
$5.78M 0.02%
59,013
-6
-0% -$627
COR icon
449
Cencora
COR
$60B
$5.78M 0.02%
20,768
-662
-3% -$166K
JEPQ icon
450
JPMorgan Nasdaq Equity Premium Income ETF
JEPQ
$41.6B
$5.75M 0.02%
110,985
+30,289
+38% +$1.69M
16 17
18
19 20

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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.