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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+8.27%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$31.9B
AUM Growth
+$2.51B
Cap. Flow
+$830M
Cap. Flow %
2.6%
Top 10 Hldgs %
23.75%
Holding
2,051
New
174
Increased
889
Reduced
606
Closed
88

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$66.8M
2
PODD icon
Insulet
PODD
+$47M
3
XMTR icon
Xometry
XMTR
+$44.1M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$43.7M
5
AON icon
Aon
AON
+$36.1M

Top Sells

Rank Stock Value
1
PYPL icon
PayPal
PYPL
+$73.8M
2
ATVI
Activision Blizzard
ATVI
+$46.9M
3
OSH
Oak Street Health, Inc.
OSH
+$43.6M
4
DIS icon
Walt Disney
DIS
+$34M
5
PGR icon
Progressive
PGR
+$32.6M

Sector Composition

Rank Sector Weight
1 Technology 26.2%
2 Healthcare 19.21%
3 Financials 10.7%
4 Consumer Discretionary 10.6%
5 Industrials 10.38%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
IBN icon
601
ICICI Bank
IBN
$108B
$3.15M 0.01%
159,367
+2,388
+2% +$47.2K
USPH icon
602
US Physical Therapy
USPH
$1.22B
$3.15M 0.01%
32,964
-4,535
-12% -$455K
VHT icon
603
Vanguard Health Care ETF
VHT
$18.6B
$3.13M 0.01%
11,741
+1,153
+11% +$294K
SGI
604
Somnigroup International
SGI
$13.7B
$3.09M 0.01%
65,735
+5,139
+8% +$233K
STWD icon
605
Starwood Property Trust
STWD
$6.09B
$3.09M 0.01%
127,129
+135
+0.1% +$3.4K
SAIC icon
606
Saic
SAIC
$5.35B
$3.09M 0.01%
36,929
-3,080
-8% -$268K
SNPS icon
607
Synopsys
SNPS
$79.7B
$3.07M 0.01%
8,335
-55
-0.7% -$18.5K
TFC icon
608
Truist Financial
TFC
$64B
$3.07M 0.01%
52,456
+18,175
+53% +$1.11M
ARE icon
609
Alexandria Real Estate Equities
ARE
$8.56B
$3.06M 0.01%
13,740
+668
+5% +$138K
OKE icon
610
Oneok
OKE
$54.5B
$3.05M 0.01%
51,963
-456
-0.9% -$28.3K
STE icon
611
Steris
STE
$23.1B
$3.05M 0.01%
12,513
+995
+9% +$227K
MCK icon
612
McKesson
MCK
$101B
$3.04M 0.01%
12,229
+10,206
+504% +$2.24M
IYW icon
613
iShares US Technology ETF
IYW
$25.2B
$3.04M 0.01%
26,467
+174
+0.7% +$19.3K
BOOT icon
614
Boot Barn
BOOT
$4.95B
$3.03M 0.01%
24,638
+6,013
+32% +$679K
K
615
DELISTED
Kellanova
K
$3.02M 0.01%
49,914
-5,423
-10% -$320K
TMX
616
DELISTED
Terminix Global Holdings, Inc.
TMX
$3.02M 0.01%
66,753
-16,115
-19% -$657K
SUB icon
617
iShares Short-Term National Muni Bond ETF
SUB
$11.4B
$2.99M 0.01%
27,881
+3,765
+16% +$404K
VAW icon
618
Vanguard Materials ETF
VAW
$3.13B
$2.99M 0.01%
15,176
+1,563
+11% +$294K
PLAN
619
DELISTED
Anaplan, Inc.
PLAN
$2.97M 0.01%
64,831
-14,427
-18% -$795K
RGLD icon
620
Royal Gold
RGLD
$19.5B
$2.97M 0.01%
28,241
-824
-3% -$83.1K
IJK icon
621
iShares S&P Mid-Cap 400 Growth ETF
IJK
$11.2B
$2.96M 0.01%
34,735
-2,251
-6% -$189K
DEED icon
622
First Trust Securitized Plus ETF
DEED
$64.5M
$2.96M 0.01%
115,000
– –
SCHG icon
623
Schwab US Large-Cap Growth ETF
SCHG
$62.8B
$2.94M 0.01%
143,592
+52,896
+58% +$1.06M
HEEM icon
624
iShares Currency Hedged MSCI Emerging Markets
HEEM
$282M
$2.91M 0.01%
98,187
-23
-0% -$702
DGX icon
625
Quest Diagnostics
DGX
$26.3B
$2.88M 0.01%
16,660
+3,002
+22% +$457K
23 24
25
26 27

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William Blair & Company's Q4 2021 Portfolio in Review

As of Q4 2021, William Blair & Company held 2,051 positions worth $31.9B, up 8.5% from $29.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q4 2021 filing shows 174 new, 889 increased, 606 reduced and 88 closed positions. Its largest new stake was Portillo's: 759,814 shares worth $28.5M. The largest sale was PayPal, an estimated $73.8M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2021 buy was Portillo's: 759,814 shares worth $28.5M.
  • William Blair & Company added most to Amazon in Q4 2021, an estimated $66.8M increase.
  • William Blair & Company's biggest Q4 2021 reduction was PayPal, cutting an estimated $73.8M.
  • William Blair & Company fully exited Asana in Q4 2021, selling an estimated $6.06M.
  • William Blair & Company's ten largest holdings make up 24% of its $31.9B portfolio in Q4 2021.
  • William Blair & Company opened 174 new positions and closed 88 in Q4 2021.
  • William Blair & Company's portfolio value rose 8.5% quarter-over-quarter to $31.9B.

Based on William Blair & Company's 13F filing for Q4 2021, filed 14 Feb 2022.