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William Blair Investment Management

William Blair Investment Management Portfolio holdings

AUM $33.3B
1-Year Est. Return 44.76%
This Fund
S&P 500
This Quarter Est. Return
-2.74%
1 Year Est. Return
+44.76%
3 Year Est. Return
+140.8%
5 Year Est. Return
+166.51%
10 Year Est. Return
+978.6%
AUM
$30.1B
AUM Growth
-$1.09B
Cap. Flow
+$378M
Cap. Flow %
1.26%
Top 10 Hldgs %
21.93%
Holding
430
New
35
Increased
162
Reduced
197
Closed
32

Top Buys

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$192M
2
SMCI icon
Super Micro Computer
SMCI
+$143M
3
LSCC icon
Lattice Semiconductor
LSCC
+$129M
4
CG icon
Carlyle Group
CG
+$114M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$111M

Top Sells

Rank Stock Value
1
DEN
Denbury Inc.
DEN
+$179M
2
PLNT icon
Planet Fitness
PLNT
+$170M
3
MLM icon
Martin Marietta Materials
MLM
+$141M
4
BLDR icon
Builders FirstSource
BLDR
+$135M
5
CCJ icon
Cameco
CCJ
+$123M

Sector Composition

Rank Sector Weight
1 Technology 25.88%
2 Industrials 15.76%
3 Healthcare 15.67%
4 Consumer Discretionary 13.72%
5 Financials 8.88%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
UMH
226
UMH Properties
UMH
$1.39B
$28.8M 0.1%
2,051,574
-158,903
-7% -$2.44M
WINA icon
227
Winmark
WINA
$1.24B
$28.7M 0.1%
76,897
-23,659
-24% -$8.59M
VCEL icon
228
Vericel Corp
VCEL
$2.29B
$28.7M 0.1%
855,207
+318,916
+59% +$11.1M
MLKN icon
229
MillerKnoll
MLKN
$1.64B
$28.1M 0.09%
1,150,994
-84,199
-7% -$1.58M
ZIP icon
230
ZipRecruiter
ZIP
$405M
$28.1M 0.09%
2,345,268
+132,025
+6% +$2.15M
WLY icon
231
John Wiley & Sons Class A
WLY
$2.53B
$27.6M 0.09%
742,365
-49,549
-6% -$1.76M
THS
232
DELISTED
Treehouse Foods
THS
$27.5M 0.09%
630,773
-47,191
-7% -$2.26M
NWE icon
233
NorthWestern Energy
NWE
$4.34B
$27.3M 0.09%
567,032
-41,546
-7% -$2.21M
SR icon
234
Spire
SR
$4.89B
$26.8M 0.09%
473,195
-34,276
-7% -$2.08M
EFSC icon
235
Enterprise Financial Services Corp
EFSC
$2.41B
$26.8M 0.09%
713,478
-55,926
-7% -$2.23M
STVN icon
236
Stevanato
STVN
$5.8B
$26.2M 0.09%
+881,381
New +$27.6M
ROP icon
237
Roper Technologies
ROP
$39.1B
$26.2M 0.09%
54,018
-1,221
-2% -$598K
ADNT icon
238
Adient
ADNT
$1.44B
$25.6M 0.09%
696,883
-51,712
-7% -$2.06M
FCPT icon
239
Four Corners Property Trust
FCPT
$2.74B
$25.2M 0.08%
1,135,367
-82,322
-7% -$2.07M
VMC icon
240
Vulcan Materials
VMC
$36.3B
$25M 0.08%
123,677
-27,295
-18% -$5.94M
DLX icon
241
Deluxe
DLX
$1.09B
$24.9M 0.08%
1,317,615
-101,708
-7% -$1.97M
MEI icon
242
Methode Electronics
MEI
$602M
$24.8M 0.08%
1,084,802
+35,102
+3% +$1.05M
P
243
Everpure Inc
P
$37B
$24.5M 0.08%
687,600
+70,620
+11% +$2.62M
WAFD icon
244
WaFd
WAFD
$2.79B
$24.5M 0.08%
955,543
-74,326
-7% -$2.08M
VITL icon
245
Vital Farms
VITL
$495M
$23.9M 0.08%
2,062,551
+413,475
+25% +$4.76M
VRNT
246
DELISTED
Verint Systems
VRNT
$23.8M 0.08%
1,035,957
+84,911
+9% +$2.74M
LNTH icon
247
Lantheus
LNTH
$6.57B
$23.8M 0.08%
342,008
+14,243
+4% +$1.04M
AAMI
248
Acadian Asset Management
AAMI
$3.27B
$23.8M 0.08%
1,225,058
-97,760
-7% -$2.02M
ERII icon
249
Energy Recovery
ERII
$397M
$23.7M 0.08%
1,118,320
-1,105,571
-50% -$29.5M
RYZ
250
Ryerson Holding Corp
RYZ
$1.5B
$23.5M 0.08%
+808,584
New +$27.4M
8 9
10
11 12

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William Blair Investment Management's Q3 2023 Portfolio in Review

As of Q3 2023, William Blair Investment Management held 430 positions worth $30.1B, down 3.5% from $31.2B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair Investment Management's Q3 2023 filing shows 35 new, 162 increased, 197 reduced and 32 closed positions. Its largest new stake was Super Micro Computer: 5,132,780 shares worth $141M. The largest sale was Denbury Inc., an estimated $179M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Industrials and Healthcare.

  • William Blair Investment Management's largest Q3 2023 buy was Super Micro Computer: 5,132,780 shares worth $141M.
  • William Blair Investment Management added most to NVIDIA in Q3 2023, an estimated $192M increase.
  • William Blair Investment Management's biggest Q3 2023 reduction was Martin Marietta Materials, cutting an estimated $141M.
  • William Blair Investment Management fully exited Denbury Inc. in Q3 2023, selling an estimated $179M.
  • William Blair Investment Management's ten largest holdings make up 22% of its $30.1B portfolio in Q3 2023.
  • William Blair Investment Management opened 35 new positions and closed 32 in Q3 2023.
  • William Blair Investment Management's portfolio value fell 3.5% quarter-over-quarter to $30.1B.

Based on William Blair Investment Management's 13F filing for Q3 2023, filed 9 Nov 2023.