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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
PRMB
651
Primo Brands
PRMB
$8.97B
$2.65M 0.01%
74,791
+28,144
+60% +$919K
ELV icon
652
Elevance Health
ELV
$86.7B
$2.64M 0.01%
6,080
-976
-14% -$392K
SNA icon
653
Snap-on
SNA
$20.9B
$2.64M 0.01%
7,834
+141
+2% +$47.9K
PDP icon
654
Invesco Dorsey Wright Momentum ETF
PDP
$1.54B
$2.63M 0.01%
26,270
-5
-0% -$540
VYX icon
655
NCR Voyix
VYX
$1.13B
$2.59M 0.01%
81,215
+18,500
+29% +$217K
AIR icon
656
AAR Corp
AIR
$5.85B
$2.58M 0.01%
46,097
+135
+0.3% +$8.97K
ROST icon
657
Ross Stores
ROST
$78.4B
$2.56M 0.01%
20,033
-109
-0.5% -$15.3K
CWB icon
658
State Street SPDR Bloomberg Convertible Securities ETF
CWB
$5.74B
$2.55M 0.01%
33,288
+411
+1% +$32.5K
VTWO icon
659
Vanguard Russell 2000 ETF
VTWO
$17.5B
$2.54M 0.01%
31,527
+470
+2% +$41.2K
AIRG icon
660
Airgain
AIRG
$69.6M
$2.53M 0.01%
750,300
+569
+0.1% +$3.46K
SRE icon
661
Sempra
SRE
$56.4B
$2.49M 0.01%
34,847
-615
-2% -$47.9K
BCO icon
662
Brink's
BCO
$4.7B
$2.48M 0.01%
28,837
-23,691
-45% -$2.15M
FA icon
663
First Advantage
FA
$3.78B
$2.46M 0.01%
+174,685
New +$2.93M
VGK icon
664
Vanguard FTSE Europe ETF
VGK
$31B
$2.46M 0.01%
34,975
+2,054
+6% +$142K
VT icon
665
Vanguard Total World Stock ETF
VT
$81.8B
$2.44M 0.01%
21,026
+4,890
+30% +$585K
LEN icon
666
Lennar Class A
LEN
$21B
$2.44M 0.01%
21,225
-657
-3% -$82.1K
TWST icon
667
Twist Bioscience
TWST
$7.8B
$2.43M 0.01%
61,966
-5,980
-9% -$269K
EPI icon
668
WisdomTree India Earnings Fund ETF
EPI
$2.04B
$2.43M 0.01%
55,620
-4,316
-7% -$185K
SUSA icon
669
iShares ESG Optimized MSCI USA ETF
SUSA
$4.2B
$2.41M 0.01%
21,007
-2,289
-10% -$278K
SCHI icon
670
Schwab 5-10 Year Corporate Bond ETF
SCHI
$11.5B
$2.39M 0.01%
106,198
+65,279
+160% +$1.45M
CF icon
671
CF Industries
CF
$17.6B
$2.38M 0.01%
30,436
+183
+0.6% +$15.3K
SCHO icon
672
Schwab Short-Term US Treasury ETF
SCHO
$13B
$2.37M 0.01%
97,510
+4,167
+4% +$101K
DSI icon
673
iShares MSCI KLD 400 Social ETF
DSI
$5.57B
$2.35M 0.01%
22,990
-132
-0.6% -$14.4K
SCHX icon
674
Schwab US Large- Cap ETF
SCHX
$74.9B
$2.35M 0.01%
106,405
+7,597
+8% +$177K
HYMB icon
675
State Street SPDR Nuveen ICE High Yield Municipal Bond ETF
HYMB
$3.37B
$2.34M 0.01%
92,680
+1,795
+2% +$46K
25 26
27
28 29

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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.