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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
+8.82%
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
$40.5B
AUM Growth
+$2.41B
Cap. Flow
+$166M
Cap. Flow %
0.41%
Top 10 Hldgs %
26.88%
Holding
451
New
40
Increased
141
Reduced
231
Closed
39

Top Buys

Rank Stock Value
1
META icon
Meta Platforms (Facebook)
META
+$732M
2
AAPL icon
Apple
AAPL
+$390M
3
TRU icon
TransUnion
TRU
+$198M
4
NVT icon
nVent Electric
NVT
+$164M
5
MANH icon
Manhattan Associates
MANH
+$159M

Top Sells

Rank Stock Value
1
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$1.17B
2
AXON
Axon Enterprise
AXON
+$211M
3
MMSI icon
Merit Medical Systems
MMSI
+$148M
4
BLDR icon
Builders FirstSource
BLDR
+$146M
5
TREX icon
Trex
TREX
+$144M

Sector Composition

Rank Sector Weight
1 Technology 34.33%
2 Consumer Discretionary 14.81%
3 Healthcare 14.4%
4 Financials 10.44%
5 Industrials 9.94%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
OSW icon
251
OneSpaWorld
OSW
$2.7B
$28M 0.07%
1,698,300
+110,148
+7% +$1.74M
PEB icon
252
Pebblebrook Hotel Trust
PEB
$2.04B
$27.9M 0.07%
2,110,018
-64,797
-3% -$851K
WERN icon
253
Werner Enterprises
WERN
$2.27B
$27.8M 0.07%
719,895
-22,201
-3% -$822K
STEL
254
DELISTED
Stellar Bancorp
STEL
$27.7M 0.07%
1,069,972
-32,190
-3% -$826K
HAE icon
255
Haemonetics
HAE
$4.16B
$27.7M 0.07%
+344,451
New +$27.8M
VCYT icon
256
Veracyte
VCYT
$3.59B
$27.6M 0.07%
811,792
-429,879
-35% -$12.1M
WINA icon
257
Winmark
WINA
$1.24B
$27.6M 0.07%
72,048
+622
+0.9% +$231K
AL
258
DELISTED
Air Lease Corp
AL
$27.4M 0.07%
+605,289
New +$27.6M
HURN icon
259
Huron Consulting
HURN
$2.39B
$27.2M 0.07%
250,633
+153,854
+159% +$16.3M
TEX icon
260
Terex
TEX
$7.8B
$27M 0.07%
510,666
-15,414
-3% -$852K
BLMN icon
261
Bloomin' Brands
BLMN
$975M
$27M 0.07%
1,630,559
+188,890
+13% +$3.35M
ADTN icon
262
Adtran
ADTN
$665M
$26.9M 0.07%
4,532,169
+94,982
+2% +$529K
CAKE icon
263
Cheesecake Factory
CAKE
$5.84B
$26.9M 0.07%
662,380
-156,948
-19% -$5.97M
HELE icon
264
Helen of Troy
HELE
$696M
$26.7M 0.07%
432,254
+111,475
+35% +$6.59M
MTDR icon
265
Matador Resources
MTDR
$6.5B
$26.7M 0.07%
539,850
-16,328
-3% -$920K
IDXX icon
266
Idexx Laboratories
IDXX
$45B
$26.6M 0.07%
52,662
-14,459
-22% -$7.02M
JBI icon
267
Janus International
JBI
$664M
$26.4M 0.07%
+2,607,922
New +$30.3M
GVA icon
268
Granite Construction
GVA
$5.52B
$26.2M 0.06%
330,937
-368,453
-53% -$25.9M
SANM icon
269
Sanmina
SANM
$11.2B
$26M 0.06%
+379,962
New +$26.2M
MRTN icon
270
Marten Transport
MRTN
$1.22B
$25.9M 0.06%
1,460,839
-45,068
-3% -$791K
THR
271
DELISTED
Thermon Group Holdings
THR
$25.4M 0.06%
850,812
+5,816
+0.7% +$175K
GPRE icon
272
Green Plains
GPRE
$1.06B
$25.2M 0.06%
1,863,275
-7,423
-0.4% -$109K
CNDT icon
273
Conduent
CNDT
$241M
$24.9M 0.06%
6,190,699
-189,625
-3% -$696K
CENTA icon
274
Central Garden & Pet Co Class A
CENTA
$2.43B
$24.7M 0.06%
788,034
+33,525
+4% +$1.11M
OPLN
275
Openlane
OPLN
$4.34B
$24.6M 0.06%
1,458,824
+30,370
+2% +$520K
9 10
11
12 13

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William Blair Investment Management's Q3 2024 Portfolio in Review

As of Q3 2024, William Blair Investment Management held 451 positions worth $40.5B, up 6.3% from $38.1B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

William Blair Investment Management's Q3 2024 filing shows 40 new, 141 increased, 231 reduced and 39 closed positions. Its largest new stake was nVent Electric: 2,380,715 shares worth $167M. The largest sale was Alphabet (Google) Class A, an estimated $1.17B.

By sector, the portfolio is most concentrated in Technology at 34% of assets, up from 34% a quarter earlier, followed by Consumer Discretionary and Healthcare.

  • William Blair Investment Management's largest Q3 2024 buy was nVent Electric: 2,380,715 shares worth $167M.
  • William Blair Investment Management added most to Meta Platforms (Facebook) in Q3 2024, an estimated $732M increase.
  • William Blair Investment Management's biggest Q3 2024 reduction was Alphabet (Google) Class A, cutting an estimated $1.17B.
  • William Blair Investment Management fully exited Axon Enterprise in Q3 2024, selling an estimated $211M.
  • William Blair Investment Management's ten largest holdings make up 27% of its $40.5B portfolio in Q3 2024.
  • William Blair Investment Management opened 40 new positions and closed 39 in Q3 2024.
  • William Blair Investment Management's portfolio value rose 6.3% quarter-over-quarter to $40.5B.

Based on William Blair Investment Management's 13F filing for Q3 2024, filed 8 Nov 2024.