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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
TFC icon
351
Truist Financial
TFC
$64.3B
$1.12M ﹤0.01%
25,980
-339
-1% -$14.9K
CDNS icon
352
Cadence Design Systems
CDNS
$89B
$1.11M ﹤0.01%
6,915
-31,025
-82% -$4.96M
TDY icon
353
Teledyne Technologies
TDY
$31.8B
$1.07M ﹤0.01%
2,680
-9,490
-78% -$3.7M
EFA icon
354
iShares MSCI EAFE ETF
EFA
$80.2B
$1.05M ﹤0.01%
16,024
-3,413
-18% -$214K
JCI icon
355
Johnson Controls International
JCI
$92.6B
$995K ﹤0.01%
15,553
-213
-1% -$13K
FTCH
356
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
$974K ﹤0.01%
205,871
-111,125
-35% -$774K
HES
357
DELISTED
Hess
HES
$971K ﹤0.01%
6,845
-26,070
-79% -$3.58M
DXCM icon
358
DexCom
DXCM
$34.3B
$942K ﹤0.01%
8,315
-31,670
-79% -$3.48M
MTD icon
359
Mettler-Toledo International
MTD
$28.8B
$744K ﹤0.01%
515
-1,965
-79% -$2.63M
OC icon
360
Owens Corning
OC
$12.3B
$714K ﹤0.01%
8,368
-1,832
-18% -$161K
IWO icon
361
iShares Russell 2000 Growth ETF
IWO
$15B
$596K ﹤0.01%
2,777
-23,520
-89% -$5.15M
CLVT icon
362
Clarivate
CLVT
$1.19B
$475K ﹤0.01%
56,900
-61,395
-52% -$576K
ALGN icon
363
Align Technology
ALGN
$12.4B
$421K ﹤0.01%
1,995
-107,762
-98% -$21.6M
COUP
364
DELISTED
Coupa Software Incorporated
COUP
$410K ﹤0.01%
5,183
-1,399,652
-100% -$83.7M
EPAM icon
365
EPAM Systems
EPAM
$5.17B
$385K ﹤0.01%
1,175
-10,500
-90% -$3.57M
GNRC icon
366
Generac Holdings
GNRC
$13.1B
$330K ﹤0.01%
3,278
-6,858
-68% -$776K
ACGL icon
367
Arch Capital
ACGL
$33.2B
$316K ﹤0.01%
5,028
-399
-7% -$22.3K
SNA icon
368
Snap-on
SNA
$21.1B
$298K ﹤0.01%
1,304
+5
+0.4% +$1.13K
TAP icon
369
Molson Coors Class B
TAP
$7.75B
$297K ﹤0.01%
5,761
+22
+0.4% +$1.13K
LKQ icon
370
LKQ Corp
LKQ
$6.25B
$296K ﹤0.01%
5,545
+21
+0.4% +$1.11K
KNX icon
371
Knight Transportation
KNX
$11.6B
$287K ﹤0.01%
5,485
+22
+0.4% +$1.14K
TKR icon
372
Timken Company
TKR
$9.03B
$284K ﹤0.01%
4,021
+16
+0.4% +$1.12K
INGR icon
373
Ingredion
INGR
$6.54B
$282K ﹤0.01%
2,883
+11
+0.4% +$1.01K
IVZ icon
374
Invesco
IVZ
$13.9B
$281K ﹤0.01%
15,633
+3,550
+29% +$60.7K
HSIC icon
375
Henry Schein
HSIC
$10.1B
$276K ﹤0.01%
3,456
+13
+0.4% +$984
13 14
15
16 17

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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.