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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
+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
(+3.3%)
Cap. Flow
-$982M
Cap. Flow
% of AUM
-3.76%
Top 10 Holdings %
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 |
Ambarella
AMBA
|
+$92.4M |
| 3 |
Genpact
G
|
+$92.1M |
| 4 |
Chipotle Mexican Grill
CMG
|
+$83.1M |
| 5 |
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 |
RB Global
RBA
|
+$101M |
| 5 |
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 | |
|---|---|---|---|---|---|---|
401
Alphabet (Google) Class C
GOOG
$4.19T
| $140K | ﹤0.01% |
1,577
-903
| -36% | -$86.2K |
|
|
402
Cable One
CABO
$191M
| – | – |
-104,115
| Closed | -$88.8M |
|
403
Codexis
CDXS
$172M
| – | – |
-1,090,412
| Closed | -$6.61M |
|
404
Celsius Holdings
CELH
$6.99B
| – | – |
-2,089,380
| Closed | -$63.2M |
|
405
dLocal
DLO
$4.2B
| – | – |
-2,383,345
| Closed | -$48.9M |
|
406
Ecolab
ECL
$78.1B
| – | – |
-4,273
| Closed | -$617K |
|
407
Edwards Lifesciences
EW
$53.6B
| – | – |
-490,968
| Closed | -$40.6M |
|
408
Grid Dynamics Holdings
GDYN
$632M
| – | – |
-1,101,950
| Closed | -$20.6M |
|
409
iRhythm Holdings
IRTC
$4.13B
| – | – |
-64,132
| Closed | -$8.03M |
|
410
Pulmonx
LUNG
$98.4M
| – | – |
-735,951
| Closed | -$12.3M |
|
411
Matador Resources
MTDR
$6.5B
| – | – |
-943,606
| Closed | -$46.2M |
|
412
Enviri
NVRI
$583M
| – | – |
-1,717,673
| Closed | -$6.42M |
|
|
413
RB Global
RBA
$16B
| – | – |
-1,611,528
| Closed | -$101M |
|
414
Regal Rexnord
RRX
$11.5B
| – | – |
-1,950
| Closed | -$274K |
|
415
Rush Street Interactive
RSI
$2.81B
| – | – |
-1,467,868
| Closed | -$5.4M |
|
416
Hanover Insurance
THG
$7.74B
| – | – |
-94,385
| Closed | -$12.1M |
|
417
Union Pacific
UNP
$174B
| – | – |
-283,400
| Closed | -$55.2M |
|
|
ABMD
418
DELISTED
Abiomed Inc
ABMD
| – | – |
-980,662
| Closed | -$241M |
|
|
HNGR
419
DELISTED
Hanger Inc.
HNGR
| – | – |
-1,402,797
| Closed | -$26.3M |
|
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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.