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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
+5.82%
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
$30.9B
AUM Growth
+$843M
(+2.8%)
Cap. Flow
-$358M
Cap. Flow
% of AUM
-1.16%
Top 10 Holdings %
Top 10 Hldgs %
16.89%
Holding
389
New
33
Increased
152
Reduced
179
Closed
22
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Charles River Laboratories
CRL
|
+$239M |
| 2 |
Ryanair
RYAAY
|
+$210M |
| 3 |
Dynatrace
DT
|
+$201M |
| 4 |
Certara
CERT
|
+$155M |
| 5 |
Leslie's
LESL
|
+$148M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SolarEdge
SEDG
|
+$265M |
| 2 |
TSMC
TSM
|
+$235M |
| 3 |
Steris
STE
|
+$187M |
| 4 |
MongoDB
MDB
|
+$173M |
| 5 |
Etsy
ETSY
|
+$170M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 24.51% |
| 2 | Healthcare | 21.08% |
| 3 | Industrials | 14.45% |
| 4 | Consumer Discretionary | 12.96% |
| 5 | Financials | 7.5% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
226
Columbia Banking Systems
COLB
$9.12B
| $19.2M | 0.06% |
445,145
+110,538
| +33% | +$4.82M |
|
227
Pediatrix Medical
MD
$2.15B
| $19.1M | 0.06% |
749,282
-187,411
| -20% | -$4.8M |
|
228
Performance Food Group
PFGC
$16.9B
| $18.8M | 0.06% |
327,027
+158,534
| +94% | +$8.37M |
|
229
Patria Investments
PAX
$1.79B
| $18.8M | 0.06% |
+1,080,523
| New | +$20.7M |
|
230
Coca-Cola
KO
$373B
| $18.5M | 0.06% |
350,216
+47,475
| +16% | +$2.39M |
|
231
Lithia Motors
LAD
$8.32B
| $18.4M | 0.06% |
47,219
-51,383
| -52% | -$18.5M |
|
232
Winmark
WINA
$1.24B
| $18.4M | 0.06% |
98,690
+7,039
| +8% | +$1.28M |
|
233
RingCentral
RNG
$5.25B
| $18M | 0.06% |
60,462
-1,859
| -3% | -$684K |
|
234
Spectrum Brands
SPB
$2.03B
| $17.7M | 0.06% |
208,132
+21,339
| +11% | +$1.74M |
|
|
BTRS
235
DELISTED
BTRS Holdings Inc. Class 1 Common Stock
BTRS
| $17.5M | 0.06% |
1,208,028
+524,670
| +77% | +$8.77M |
|
|
KC
236
Kingsoft Cloud Holdings
KC
$3.52B
| $17.1M | 0.06% |
434,108
+72,640
| +20% | +$3.86M |
|
|
PRO
237
DELISTED
PROS Holdings
PRO
| $16.6M | 0.05% |
390,678
+232,525
| +147% | +$10.6M |
|
238
Teledyne Technologies
TDY
$31.8B
| $16.3M | 0.05% |
39,495
-412,947
| -91% | -$159M |
|
239
Avery Dennison
AVY
$13.7B
| $16.2M | 0.05% |
88,057
+9,033
| +11% | +$1.54M |
|
240
Darling Ingredients
DAR
$10B
| $16M | 0.05% |
217,590
-801,963
| -79% | -$55.1M |
|
|
PLAN
241
DELISTED
Anaplan, Inc.
PLAN
| $15.9M | 0.05% |
+294,929
| New | +$19.9M |
|
242
Clarivate
CLVT
$1.19B
| $15.7M | 0.05% |
595,702
+165,503
| +38% | +$4.53M |
|
243
Service Corp International
SCI
$11.5B
| $15.1M | 0.05% |
296,582
-199,364
| -40% | -$9.98M |
|
244
EPAM Systems
EPAM
$5.17B
| $14.8M | 0.05% |
37,317
-1,148
| -3% | -$420K |
|
245
CONMED
CNMD
$1.48B
| $14.8M | 0.05% |
113,072
-81,690
| -42% | -$9.83M |
|
246
Brady Corp
BRC
$4.48B
| $14.7M | 0.05% |
275,583
-161,381
| -37% | -$8.44M |
|
247
Sunstone Hotel Investors
SHO
$2.01B
| $14.5M | 0.05% |
1,165,819
-214,416
| -16% | -$2.56M |
|
248
Voya Financial
VOYA
$9.01B
| $14.4M | 0.05% |
226,511
+22,515
| +11% | +$1.35M |
|
249
PDF Solutions
PDFS
$2.19B
| $14.3M | 0.05% |
804,248
+59,575
| +8% | +$1.18M |
|
250
Gibraltar Industries
ROCK
$1.46B
| $14.1M | 0.05% |
154,514
-90,312
| -37% | -$8.29M |
|
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William Blair Investment Management's Q1 2021 Portfolio in Review
As of Q1 2021, William Blair Investment Management held 389 positions worth $30.9B, up 2.8% from $30B the previous quarter. Its ten largest holdings account for 17% of the portfolio.
William Blair Investment Management's Q1 2021 filing shows 33 new, 152 increased, 179 reduced and 22 closed positions. Its largest new stake was Dynatrace: 4,138,525 shares worth $200M. The largest sale was SolarEdge, an estimated $265M.
By sector, the portfolio is most concentrated in Technology at 25% of assets, down from 27% a quarter earlier, followed by Healthcare and Industrials.
- William Blair Investment Management's largest Q1 2021 buy was Dynatrace: 4,138,525 shares worth $200M.
- William Blair Investment Management added most to Charles River Laboratories in Q1 2021, an estimated $239M increase.
- William Blair Investment Management's biggest Q1 2021 reduction was TSMC, cutting an estimated $235M.
- William Blair Investment Management fully exited SolarEdge in Q1 2021, selling an estimated $265M.
- William Blair Investment Management's ten largest holdings make up 17% of its $30.9B portfolio in Q1 2021.
- William Blair Investment Management opened 33 new positions and closed 22 in Q1 2021.
- William Blair Investment Management's portfolio value rose 2.8% quarter-over-quarter to $30.9B.
Based on William Blair Investment Management's 13F filing for Q1 2021, filed 13 May 2021.