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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
DVN icon
351
Devon Energy
DVN
$49.3B
$7.84M 0.03%
154,871
+10,937
+8% +$623K
CMCSA icon
352
Comcast
CMCSA
$90.4B
$7.83M 0.03%
206,505
+13,875
+7% +$525K
HAL icon
353
Halliburton
HAL
$27.7B
$7.71M 0.03%
243,720
+29,377
+14% +$1.09M
DFS
354
DELISTED
Discover Financial Services
DFS
$7.7M 0.03%
77,862
+31,111
+67% +$3.33M
U icon
355
Unity
U
$19.6B
$7.47M 0.03%
230,379
+12,670
+6% +$407K
LNG icon
356
Cheniere Energy
LNG
$55.4B
$7.36M 0.03%
46,724
-572
-1% -$86.4K
VBK icon
357
Vanguard Morningstar Small-Cap Growth ETF
VBK
$24.8B
$7.32M 0.03%
33,821
-1,605
-5% -$347K
RGEN icon
358
Repligen
RGEN
$9.35B
$7.28M 0.03%
43,263
-231
-0.5% -$41.2K
UL icon
359
Unilever
UL
$133B
$7.25M 0.03%
124,067
+1,494
+1% +$84.9K
ABB
360
DELISTED
ABB Ltd
ABB
$7.21M 0.03%
210,343
+32,042
+18% +$1.07M
HUM icon
361
Humana
HUM
$46.7B
$7.18M 0.03%
14,781
+9,234
+166% +$4.56M
USB icon
362
US Bancorp
USB
$101B
$7.16M 0.03%
198,710
+1,008
+0.5% +$44.9K
AMN icon
363
AMN Healthcare
AMN
$1.26B
$7.14M 0.03%
86,099
-40,920
-32% -$3.85M
MPC icon
364
Marathon Petroleum
MPC
$97.8B
$7.1M 0.03%
52,676
+162
+0.3% +$20.3K
IWO icon
365
iShares Russell 2000 Growth ETF
IWO
$15B
$7.1M 0.03%
31,296
-1,190
-4% -$272K
MCK icon
366
McKesson
MCK
$102B
$7.07M 0.03%
19,856
-141
-0.7% -$50.9K
RHI icon
367
Robert Half
RHI
$4.25B
$7.06M 0.03%
87,675
+24,636
+39% +$1.96M
PHO icon
368
Invesco Water Resources ETF
PHO
$2.06B
$7.03M 0.03%
131,712
+281
+0.2% +$14.9K
IWN icon
369
iShares Russell 2000 Value ETF
IWN
$14.6B
$7.01M 0.03%
51,154
-5,566
-10% -$807K
USMV icon
370
iShares MSCI USA Min Vol Factor ETF
USMV
$24.4B
$6.96M 0.03%
95,681
-569
-0.6% -$40.9K
BWA icon
371
BorgWarner
BWA
$14B
$6.95M 0.03%
160,874
-5,733
-3% -$237K
GEHC icon
372
GE HealthCare
GEHC
$32.6B
$6.94M 0.03%
+84,623
New +$6.04M
BIV icon
373
Vanguard Intermediate-Term Bond ETF
BIV
$28.8B
$6.86M 0.03%
89,439
-4,252
-5% -$322K
WOLF icon
374
Wolfspeed
WOLF
$1.65B
$6.85M 0.03%
105,397
+68,244
+184% +$4.99M
STZ icon
375
Constellation Brands
STZ
$22.9B
$6.84M 0.03%
30,283
+307
+1% +$68.3K
13 14
15
16 17

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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.