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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
+10.3%
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
$25B
AUM Growth
+$2.04B
Cap. Flow
+$116M
Cap. Flow %
0.46%
Top 10 Hldgs %
23.68%
Holding
1,879
New
69
Increased
680
Reduced
748
Closed
78

Top Buys

Rank Stock Value
1
NEOG icon
Neogen
NEOG
+$45.2M
2
PGR icon
Progressive
PGR
+$34.8M
3
TOST icon
Toast
TOST
+$33.8M
4
PWSC
PowerSchool Holdings, Inc.
PWSC
+$33.4M
5
UBER icon
Uber
UBER
+$30.4M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$54.2M
2
LULU icon
lululemon athletica
LULU
+$53.4M
3
PYPL icon
PayPal
PYPL
+$45.8M
4
BAH icon
Booz Allen Hamilton
BAH
+$20.2M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$17.8M

Sector Composition

Rank Sector Weight
1 Technology 24.61%
2 Healthcare 19.42%
3 Financials 11.75%
4 Industrials 11.37%
5 Consumer Discretionary 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PAVE icon
276
Global X US Infrastructure Development ETF
PAVE
$14.3B
$11.9M 0.05%
418,353
-16,982
-4% -$481K
SNPS icon
277
Synopsys
SNPS
$79B
$11.8M 0.05%
30,632
+7,386
+32% +$2.64M
IRT icon
278
Independence Realty Trust
IRT
$3.96B
$11.7M 0.05%
731,411
-9,820
-1% -$172K
MPWR icon
279
Monolithic Power Systems
MPWR
$70B
$11.7M 0.05%
23,362
+67
+0.3% +$30.8K
GIS icon
280
General Mills
GIS
$20.4B
$11.5M 0.05%
134,940
+12,595
+10% +$1.01M
LZ icon
281
LegalZoom.com
LZ
$930M
$11.5M 0.05%
1,228,521
+1,023,498
+499% +$8.67M
QNST icon
282
QuinStreet
QNST
$1.19B
$11.5M 0.05%
722,617
-224,237
-24% -$3.55M
NOC icon
283
Northrop Grumman
NOC
$82B
$11.4M 0.05%
24,676
-3,455
-12% -$1.6M
CODI icon
284
Compass Diversified
CODI
$908M
$11.4M 0.05%
596,605
+24,521
+4% +$502K
EFX icon
285
Equifax
EFX
$21.2B
$11.3M 0.05%
55,598
-998
-2% -$208K
SDY icon
286
State Street SPDR S&P Dividend ETF
SDY
$22.1B
$11.2M 0.04%
90,835
+6,741
+8% +$848K
SHAK icon
287
Shake Shack
SHAK
$2.94B
$11.2M 0.04%
202,432
+4,112
+2% +$227K
PLMR icon
288
Palomar
PLMR
$3.36B
$11.1M 0.04%
200,950
-13,935
-6% -$747K
GLOB icon
289
Globant
GLOB
$1.67B
$11M 0.04%
67,368
-4,286
-6% -$700K
AMK
290
DELISTED
AssetMark Financial Holdings, Inc.
AMK
$10.9M 0.04%
347,725
+233,322
+204% +$6.54M
VGT icon
291
Vanguard Information Technology ETF
VGT
$149B
$10.7M 0.04%
222,704
-27,712
-11% -$1.23M
AMAT icon
292
Applied Materials
AMAT
$435B
$10.6M 0.04%
86,315
-3,311
-4% -$380K
KMI icon
293
Kinder Morgan
KMI
$70.7B
$10.6M 0.04%
602,761
+2,272
+0.4% +$40.4K
ADM icon
294
Archer Daniels Midland
ADM
$38.4B
$10.5M 0.04%
132,399
-67,707
-34% -$5.53M
GPN icon
295
Global Payments
GPN
$23.4B
$10.4M 0.04%
99,035
-42,498
-30% -$4.61M
GDX icon
296
VanEck Gold Miners ETF
GDX
$27.8B
$10.4M 0.04%
320,522
+29,554
+10% +$894K
CI icon
297
Cigna
CI
$73.3B
$10.3M 0.04%
40,358
-7,173
-15% -$2.09M
MMP
298
DELISTED
Magellan Midstream Partners, L.P.
MMP
$10.2M 0.04%
188,498
+646
+0.3% +$34.2K
WCN
299
Waste Connections
WCN
$41.6B
$10.2M 0.04%
73,163
+4,568
+7% +$608K
KNSL icon
300
Kinsale Capital Group
KNSL
$8.51B
$10.2M 0.04%
33,885
-3,174
-9% -$928K
10 11
12
13 14

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William Blair & Company's Q1 2023 Portfolio in Review

As of Q1 2023, William Blair & Company held 1,879 positions worth $25B, up 8.9% from $23B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2023 filing shows 69 new, 680 increased, 748 reduced and 78 closed positions. Its largest new stake was Neogen: 2,404,277 shares worth $44.5M. The largest sale was Alphabet (Google) Class C, an estimated $54.2M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, up from 22% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2023 buy was Neogen: 2,404,277 shares worth $44.5M.
  • William Blair & Company added most to Progressive in Q1 2023, an estimated $34.8M increase.
  • William Blair & Company's biggest Q1 2023 reduction was Alphabet (Google) Class C, cutting an estimated $54.2M.
  • William Blair & Company fully exited Coupa Software Incorporated in Q1 2023, selling an estimated $2.65M.
  • William Blair & Company's ten largest holdings make up 24% of its $25B portfolio in Q1 2023.
  • William Blair & Company opened 69 new positions and closed 78 in Q1 2023.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $25B.

Based on William Blair & Company's 13F filing for Q1 2023, filed 12 May 2023.