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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
+5.41%
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
$40.9B
AUM Growth
+$405M
Cap. Flow
-$285M
Cap. Flow %
-0.7%
Top 10 Hldgs %
27.41%
Holding
463
New
51
Increased
220
Reduced
159
Closed
30

Top Buys

Rank Stock Value
1
PRMB
Primo Brands
PRMB
+$331M
2
YUMC icon
Yum China
YUMC
+$240M
3
TLN
Talen Energy Corp
TLN
+$232M
4
MLI icon
Mueller Industries
MLI
+$206M
5
BAM icon
Brookfield Asset Management
BAM
+$203M

Top Sells

Rank Stock Value
1
ISRG icon
Intuitive Surgical
ISRG
+$315M
2
ICLR icon
Icon
ICLR
+$294M
3
ZTS icon
Zoetis
ZTS
+$230M
4
BWXT icon
BWX Technologies
BWXT
+$222M
5
PRMW
Primo Water Corporation
PRMW
+$197M

Sector Composition

Rank Sector Weight
1 Technology 34.12%
2 Consumer Discretionary 14.8%
3 Financials 12.22%
4 Healthcare 11.93%
5 Industrials 10.15%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
LOMA
351
Loma Negra
LOMA
$1.13B
$3.87M 0.01%
+323,841
New +$3.36M
UEIC icon
352
Universal Electronics
UEIC
$75.8M
$3.78M 0.01%
343,229
-171,844
-33% -$1.72M
IWN icon
353
iShares Russell 2000 Value ETF
IWN
$14.6B
$3.66M 0.01%
+22,315
New +$3.81M
SMFG icon
354
Sumitomo Mitsui Financial
SMFG
$166B
$3.26M 0.01%
225,195
-16,234
-7% -$223K
ASML icon
355
ASML
ASML
$695B
$3.24M 0.01%
4,668
-3,892
-45% -$2.79M
TCOM icon
356
Trip.com Group
TCOM
$28.7B
$3.02M 0.01%
43,919
-4,482
-9% -$296K
CLS icon
357
Celestica
CLS
$42.8B
$2.8M 0.01%
+30,308
New +$2.37M
HLN icon
358
Haleon
HLN
$43.2B
$2.35M 0.01%
246,458
-51,200
-17% -$501K
RELX icon
359
RELX
RELX
$60.2B
$2.34M 0.01%
51,426
-10,345
-17% -$484K
INDA icon
360
iShares MSCI India ETF
INDA
$6.58B
$2.27M 0.01%
+43,200
New +$2.38M
CTVA icon
361
Corteva
CTVA
$50.4B
$2.21M 0.01%
38,726
+7,946
+26% +$470K
AZN icon
362
AstraZeneca
AZN
$246B
$2.04M 0.01%
15,587
-13,035
-46% -$1.82M
MTD icon
363
Mettler-Toledo International
MTD
$28.8B
$2.04M 0.01%
1,667
-62
-4% -$80.9K
NVO
364
Novo Nordisk
NVO
$203B
$1.89M ﹤0.01%
22,002
-30,933
-58% -$3.35M
TTE icon
365
TotalEnergies
TTE
$194B
$1.87M ﹤0.01%
34,303
-8,085
-19% -$492K
KSPI icon
366
Kaspi.kz JSC
KSPI
$18.9B
$1.73M ﹤0.01%
+18,214
New +$1.95M
TJX icon
367
TJX Companies
TJX
$169B
$1.72M ﹤0.01%
14,267
-120
-0.8% -$14.3K
GPRE icon
368
Green Plains
GPRE
$1.06B
$1.69M ﹤0.01%
178,791
-1,684,484
-90% -$19M
CEPU
369
Central Puerto
CEPU
$1.99B
$1.32M ﹤0.01%
+91,025
New +$1.14M
SMIN icon
370
iShares MSCI India Small-Cap ETF
SMIN
$771M
$1.27M ﹤0.01%
+16,650
New +$1.36M
KEYS icon
371
Keysight
KEYS
$60.6B
$1.21M ﹤0.01%
7,513
-27
-0.4% -$4.35K
VLTO icon
372
Veralto
VLTO
$23.6B
$1.09M ﹤0.01%
10,660
+2,065
+24% +$220K
STVN icon
373
Stevanato
STVN
$5.8B
$1.03M ﹤0.01%
+47,065
New +$943K
UL icon
374
Unilever
UL
$133B
$986K ﹤0.01%
15,454
-6,452
-29% -$436K
EPI icon
375
WisdomTree India Earnings Fund ETF
EPI
$2.04B
$951K ﹤0.01%
+21,000
New +$996K
13 14
15
16 17

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William Blair Investment Management's Q4 2024 Portfolio in Review

As of Q4 2024, William Blair Investment Management held 463 positions worth $40.9B, up 1% from $40.5B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

William Blair Investment Management's Q4 2024 filing shows 51 new, 220 increased, 159 reduced and 30 closed positions. Its largest new stake was Primo Brands: 11,161,870 shares worth $343M. The largest sale was Intuitive Surgical, an estimated $315M.

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

  • William Blair Investment Management's largest Q4 2024 buy was Primo Brands: 11,161,870 shares worth $343M.
  • William Blair Investment Management added most to West Pharmaceutical in Q4 2024, an estimated $177M increase.
  • William Blair Investment Management's biggest Q4 2024 reduction was Intuitive Surgical, cutting an estimated $315M.
  • William Blair Investment Management fully exited Primo Water Corporation in Q4 2024, selling an estimated $197M.
  • William Blair Investment Management's ten largest holdings make up 27% of its $40.9B portfolio in Q4 2024.
  • William Blair Investment Management opened 51 new positions and closed 30 in Q4 2024.
  • William Blair Investment Management's portfolio value rose 1% quarter-over-quarter to $40.9B.

Based on William Blair Investment Management's 13F filing for Q4 2024, filed 10 Feb 2025.