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William Blair Investment Management Portfolio holdings
AUM
$33.3B
1-Year Est. Return
44.76%
This Fund
S&P 500
This Quarter
Est. Return
+17.18%
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
$37.7B
AUM Growth
+$2.06B
(+5.8%)
Cap. Flow
-$2.27B
Cap. Flow
% of AUM
-6.03%
Top 10 Holdings %
Top 10 Hldgs %
30.35%
Holding
461
New
38
Increased
117
Reduced
257
Closed
44
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
BWX Technologies
BWXT
|
+$149M |
| 2 |
Maplebear
CART
|
+$145M |
| 3 |
BellRing Brands
BRBR
|
+$144M |
| 4 |
Oracle
ORCL
|
+$139M |
| 5 |
P
Everpure Inc
P
|
+$130M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Yum China
YUMC
|
+$217M |
| 2 |
Palo Alto Networks
PANW
|
+$192M |
| 3 |
e.l.f. Beauty
ELF
|
+$177M |
| 4 |
Stride
LRN
|
+$176M |
| 5 |
GTLS
Chart Industries
GTLS
|
+$153M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 35.89% |
| 2 | Consumer Discretionary | 15.09% |
| 3 | Financials | 13.13% |
| 4 | Healthcare | 10.3% |
| 5 | Industrials | 9.46% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
376
Allison Transmission
ALSN
$10.2B
| $490K | ﹤0.01% |
5,162
-81
| -2% | -$7.83K |
|
377
Regency Centers
REG
$13.9B
| $482K | ﹤0.01% |
6,773
+173
| +3% | +$12.4K |
|
378
WEX
WEX
$6.48B
| $473K | ﹤0.01% |
3,222
+709
| +28% | +$95.2K |
|
379
LKQ Corp
LKQ
$6.25B
| $473K | ﹤0.01% |
12,780
+579
| +5% | +$23.1K |
|
380
NiSource
NI
$20.1B
| $471K | ﹤0.01% |
11,670
-194
| -2% | -$7.61K |
|
|
PPL
381
PPL Corp
PPL
$26.7B
| $467K | ﹤0.01% |
13,789
-254
| -2% | -$8.84K |
|
382
Donaldson
DCI
$11.2B
| $465K | ﹤0.01% |
6,698
-111
| -2% | -$7.47K |
|
383
Genpact
G
$5.7B
| $457K | ﹤0.01% |
10,393
+1,943
| +23% | +$88K |
|
384
Royal Gold
RGLD
$19.7B
| $453K | ﹤0.01% |
2,549
-39
| -2% | -$6.9K |
|
385
Accenture
ACN
$110B
| $453K | ﹤0.01% |
1,515
-310,504
| -100% | -$94.6M |
|
386
Axalta
AXTA
$7.98B
| $439K | ﹤0.01% |
14,799
+1,381
| +10% | +$43K |
|
387
Timken Company
TKR
$9.03B
| $413K | ﹤0.01% |
5,688
-101
| -2% | -$6.87K |
|
|
EXE
388
Expand Energy Corp
EXE
$22.3B
| $403K | ﹤0.01% |
+3,448
| New | +$385K |
|
389
Molson Coors Class B
TAP
$7.75B
| $400K | ﹤0.01% |
8,312
-135
| -2% | -$7.43K |
|
390
Healthpeak Properties
DOC
$14.2B
| $396K | ﹤0.01% |
22,601
-369
| -2% | -$6.55K |
|
391
JB Hunt Transport Services
JBHT
$25.9B
| $386K | ﹤0.01% |
2,691
-44
| -2% | -$6.09K |
|
392
Labcorp
LH
$26.2B
| $376K | ﹤0.01% |
1,432
-22
| -2% | -$5.36K |
|
393
Ingredion
INGR
$6.54B
| $364K | ﹤0.01% |
2,684
-45
| -2% | -$6.08K |
|
394
Host Hotels & Resorts
HST
$15.6B
| $345K | ﹤0.01% |
22,470
-401
| -2% | -$5.94K |
|
395
Icon
ICLR
$12.9B
| $329K | ﹤0.01% |
2,264
-36
| -2% | -$5.11K |
|
396
Camden Property Trust
CPT
$10.9B
| $327K | ﹤0.01% |
2,899
-51
| -2% | -$5.88K |
|
397
Jabil
JBL
$38.4B
| $323K | ﹤0.01% |
1,481
-1,799
| -55% | -$292K |
|
398
US Foods
USFD
$24B
| $317K | ﹤0.01% |
4,114
-77
| -2% | -$5.49K |
|
399
Avantor
AVTR
$9.42B
| $299K | ﹤0.01% |
22,225
-4,410,817
| -99% | -$60.4M |
|
400
Brunswick
BC
$5.21B
| $295K | ﹤0.01% |
5,342
-89
| -2% | -$4.5K |
|
Similar funds
GAM
VIA
William Blair Investment Management's Q2 2025 Portfolio in Review
As of Q2 2025, William Blair Investment Management held 461 positions worth $37.7B, up 5.8% from $35.6B the previous quarter. Its ten largest holdings account for 30% of the portfolio.
William Blair Investment Management withdrew a net $2.27B in Q2 2025, closing 44 positions and reducing 257 holdings. Its most notable exit was The AZEK Co, an estimated $123M position sold in full.
By sector, the portfolio is most concentrated in Technology at 36% of assets, up from 33% a quarter earlier, followed by Consumer Discretionary and Financials.
Against the trend, William Blair Investment Management opened a new position in Maplebear worth $151M.
- William Blair Investment Management's largest Q2 2025 buy was Maplebear: 3,345,792 shares worth $151M.
- William Blair Investment Management added most to BWX Technologies in Q2 2025, an estimated $149M increase.
- William Blair Investment Management's biggest Q2 2025 reduction was Yum China, cutting an estimated $217M.
- William Blair Investment Management fully exited The AZEK Co in Q2 2025, selling an estimated $123M.
- William Blair Investment Management's ten largest holdings make up 30% of its $37.7B portfolio in Q2 2025.
- William Blair Investment Management opened 38 new positions and closed 44 in Q2 2025.
- William Blair Investment Management's portfolio value rose 5.8% quarter-over-quarter to $37.7B.
Based on William Blair Investment Management's 13F filing for Q2 2025, filed 29 Jul 2025.