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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
TENB icon
201
Tenable Holdings
TENB
$4.08B
$20.6M 0.08%
433,060
+6,698
+2% +$284K
BL icon
202
BlackLine
BL
$1.65B
$20.1M 0.08%
299,666
-7,647
-2% -$527K
VZ icon
203
Verizon
VZ
$195B
$19.9M 0.08%
512,744
-21,000
-4% -$828K
ESGD icon
204
iShares ESG Aware MSCI EAFE ETF
ESGD
$12.3B
$19.9M 0.08%
277,322
+3,382
+1% +$237K
VOE icon
205
Vanguard Morningstar Mid-Cap Value ETF
VOE
$24.4B
$19.7M 0.08%
146,696
+576
+0.4% +$79.9K
LMT icon
206
Lockheed Martin
LMT
$140B
$19.6M 0.08%
41,381
+11,973
+41% +$5.61M
NTRS icon
207
Northern Trust
NTRS
$35B
$19.5M 0.08%
221,288
-7,281
-3% -$675K
DOW icon
208
Dow Inc
DOW
$22.1B
$19.4M 0.08%
353,865
-10,952
-3% -$616K
ORCL icon
209
Oracle
ORCL
$442B
$19.1M 0.08%
205,705
-8,558
-4% -$750K
IRM icon
210
Iron Mountain
IRM
$37B
$19M 0.08%
358,471
-3,090
-0.9% -$162K
SMG icon
211
ScottsMiracle-Gro
SMG
$3.62B
$18.9M 0.08%
271,687
+49,423
+22% +$3.55M
XLE icon
212
State Street Energy Select Sector SPDR ETF
XLE
$39.9B
$18.9M 0.08%
456,152
-16,784
-4% -$718K
TWLO icon
213
Twilio
TWLO
$37.9B
$18.7M 0.07%
281,117
+19,894
+8% +$1.23M
TJX icon
214
TJX Companies
TJX
$169B
$18.7M 0.07%
238,967
+4,718
+2% +$371K
IJH icon
215
iShares Core S&P Mid-Cap ETF
IJH
$128B
$18.7M 0.07%
374,060
+7,615
+2% +$388K
IJR icon
216
iShares Core S&P Small-Cap ETF
IJR
$112B
$18.2M 0.07%
188,262
+1,576
+0.8% +$158K
CDW icon
217
CDW
CDW
$17.1B
$18.1M 0.07%
92,760
+4,216
+5% +$828K
VNQ icon
218
Vanguard Real Estate ETF
VNQ
$38.6B
$17.6M 0.07%
211,793
-20,063
-9% -$1.72M
XMTR icon
219
Xometry
XMTR
$5.34B
$17.6M 0.07%
1,174,743
-458,481
-28% -$12.1M
TROW icon
220
T. Rowe Price
TROW
$23.8B
$17.5M 0.07%
155,361
+11,720
+8% +$1.34M
IUSG icon
221
iShares Core S&P US Growth ETF
IUSG
$33.7B
$17.5M 0.07%
197,419
-59,314
-23% -$5.05M
T icon
222
AT&T
T
$166B
$17.5M 0.07%
909,595
+52,081
+6% +$995K
SGEN
223
DELISTED
Seagen Inc. Common Stock
SGEN
$17.3M 0.07%
85,570
+17,913
+26% +$2.87M
MU icon
224
Micron Technology
MU
$1.03T
$17.3M 0.07%
286,219
-10,180
-3% -$597K
CHWY icon
225
Chewy
CHWY
$9.15B
$17.2M 0.07%
459,604
-14,671
-3% -$607K
7 8
9
10 11

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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.