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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
+10.03%
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
$26.1B
AUM Growth
+$841M
Cap. Flow
-$982M
Cap. Flow %
-3.76%
Top 10 Hldgs %
17.15%
Holding
419
New
32
Increased
142
Reduced
225
Closed
18

Top Buys

Rank Stock Value
1
MZTI
The Marzetti Company
MZTI
+$142M
2
AMBA icon
Ambarella
AMBA
+$92.4M
3
G icon
Genpact
G
+$92.1M
4
CMG icon
Chipotle Mexican Grill
CMG
+$83.1M
5
CG icon
Carlyle Group
CG
+$81.2M

Top Sells

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$241M
2
HZNP
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
+$155M
3
DEN
Denbury Inc.
DEN
+$144M
4
RBA icon
RB Global
RBA
+$101M
5
CABO icon
Cable One
CABO
+$88.8M

Sector Composition

Rank Sector Weight
1 Technology 22.72%
2 Healthcare 17.24%
3 Industrials 15.95%
4 Consumer Discretionary 14.35%
5 Financials 11.06%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CPRT icon
51
Copart
CPRT
$26.8B
$161M 0.62%
5,282,826
+596,202
+13% +$17.8M
PYPL icon
52
PayPal
PYPL
$49.9B
$157M 0.6%
2,198,185
-23,612
-1% -$1.89M
CRL icon
53
Charles River Laboratories
CRL
$13.6B
$155M 0.59%
710,020
-17,536
-2% -$3.83M
WAL icon
54
Western Alliance Bancorporation
WAL
$8.88B
$154M 0.59%
2,585,967
-123,648
-5% -$8.01M
SYK icon
55
Stryker
SYK
$132B
$153M 0.59%
625,992
+16,320
+3% +$3.7M
BURL icon
56
Burlington
BURL
$22.2B
$150M 0.57%
739,899
-38,547
-5% -$6.16M
INTU icon
57
Intuit
INTU
$90.4B
$148M 0.57%
381,227
+47,386
+14% +$18.8M
PLNT icon
58
Planet Fitness
PLNT
$3.67B
$148M 0.57%
1,880,809
+720,961
+62% +$50.3M
VRNS icon
59
Varonis Systems
VRNS
$4.85B
$148M 0.57%
6,181,738
+903,819
+17% +$20.7M
MZTI
60
The Marzetti Company
MZTI
$3.15B
$148M 0.57%
+748,865
New +$142M
NATI
61
DELISTED
National Instruments Corp
NATI
$148M 0.56%
4,000,514
-246,921
-6% -$9.65M
FOXF icon
62
Fox Factory Holding Corp
FOXF
$886M
$145M 0.56%
1,591,367
-64,517
-4% -$6M
EL icon
63
Estee Lauder
EL
$31.8B
$144M 0.55%
580,161
-31,401
-5% -$7.01M
NOVT icon
64
Novanta
NOVT
$6.28B
$144M 0.55%
1,057,654
-53,854
-5% -$7.54M
NFE icon
65
New Fortress Energy
NFE
$93.8M
$142M 0.54%
3,341,421
+195,170
+6% +$9.43M
GWRE icon
66
Guidewire Software
GWRE
$14.3B
$142M 0.54%
2,262,881
-60,230
-3% -$3.57M
CRM icon
67
Salesforce
CRM
$158B
$137M 0.53%
1,036,298
-83,958
-7% -$12.3M
DEN
68
DELISTED
Denbury Inc.
DEN
$134M 0.51%
1,534,216
-1,579,584
-51% -$144M
CF icon
69
CF Industries
CF
$17.5B
$131M 0.5%
1,540,376
-63,575
-4% -$6.46M
PD icon
70
PagerDuty
PD
$886M
$130M 0.5%
4,886,613
+517,110
+12% +$12.2M
P
71
Everpure Inc
P
$36.3B
$126M 0.48%
4,726,730
-348,704
-7% -$10.1M
ARES icon
72
Ares Management
ARES
$31.8B
$123M 0.47%
1,798,598
-891,406
-33% -$64.3M
ALRM icon
73
Alarm.com
ALRM
$2.72B
$123M 0.47%
2,487,354
-96,901
-4% -$5.34M
LESL icon
74
Leslie's
LESL
$12.2M
$122M 0.47%
499,957
-23,563
-5% -$6.55M
TREX icon
75
Trex
TREX
$4.98B
$121M 0.46%
2,864,201
-136,425
-5% -$6.19M
1 2
3
4 5

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William Blair Investment Management's Q4 2022 Portfolio in Review

As of Q4 2022, William Blair Investment Management held 419 positions worth $26.1B, up 3.3% from $25.3B the previous quarter. Its ten largest holdings account for 17% of the portfolio.

William Blair Investment Management withdrew a net $982M in Q4 2022, closing 18 positions and reducing 225 holdings. Its most notable exit was Abiomed Inc, an estimated $241M position sold in full.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 23% a quarter earlier, followed by Healthcare and Industrials.

Against the trend, William Blair Investment Management opened a new position in The Marzetti Company worth $148M.

  • William Blair Investment Management's largest Q4 2022 buy was The Marzetti Company: 748,865 shares worth $148M.
  • William Blair Investment Management added most to Chipotle Mexican Grill in Q4 2022, an estimated $83.1M increase.
  • William Blair Investment Management's biggest Q4 2022 reduction was Horizon Therapeutics Public Limited Company Ordinary Shares, cutting an estimated $155M.
  • William Blair Investment Management fully exited Abiomed Inc in Q4 2022, selling an estimated $241M.
  • William Blair Investment Management's ten largest holdings make up 17% of its $26.1B portfolio in Q4 2022.
  • William Blair Investment Management opened 32 new positions and closed 18 in Q4 2022.
  • William Blair Investment Management's portfolio value rose 3.3% quarter-over-quarter to $26.1B.

Based on William Blair Investment Management's 13F filing for Q4 2022, filed 9 Feb 2023.