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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
+7.16%
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
$34.1B
AUM Growth
+$1.63B
Cap. Flow
-$169M
Cap. Flow %
-0.5%
Top 10 Hldgs %
23.77%
Holding
1,892
New
86
Increased
671
Reduced
778
Closed
71

Top Buys

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$92.1M
2
AAON icon
Aaon
AAON
+$55.5M
3
P
Everpure Inc
P
+$43.5M
4
BAH icon
Booz Allen Hamilton
BAH
+$29M
5
RBC icon
RBC Bearings
RBC
+$26.8M

Top Sells

Rank Stock Value
1
DXCM icon
DexCom
DXCM
+$128M
2
CRWD icon
CrowdStrike
CRWD
+$42.9M
3
BLK icon
Blackrock
BLK
+$42M
4
CSGP icon
CoStar Group
CSGP
+$41.5M
5
SBUX icon
Starbucks
SBUX
+$38.8M

Sector Composition

Rank Sector Weight
1 Technology 27.11%
2 Healthcare 14.76%
3 Financials 12.67%
4 Industrials 11.93%
5 Consumer Discretionary 7.9%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
RMBS icon
1851
Rambus
RMBS
$11B
– –
-3,951
Closed -$232K
RPRX icon
1852
Royalty Pharma
RPRX
$25.3B
– –
-8,420
Closed -$222K
RYLD icon
1853
Global X Russell 2000 Covered Call ETF
RYLD
$1.4B
– –
-9
Closed -$144
SAIC icon
1854
Saic
SAIC
$5.35B
– –
-7,927
Closed -$932K
SIRI icon
1855
SiriusXM
SIRI
$10.1B
– –
-1,674
Closed -$47.4K
SKT icon
1856
Tanger
SKT
$4.52B
– –
-12,308
Closed -$334K
SMCI icon
1857
Super Micro Computer
SMCI
$20.1B
– –
-10,330
Closed -$846K
SNAP icon
1858
Snap
SNAP
$9.01B
– –
-15,111
Closed -$251K
STVN icon
1859
Stevanato
STVN
$5.54B
– –
-21,105
Closed -$387K
TGI
1860
DELISTED
Triumph Group
TGI
– –
-11,475
Closed -$177K
TM icon
1861
Toyota
TM
$225B
– –
-1,080
Closed -$221K
TOVX icon
1862
Theriva Biologics
TOVX
$10.1M
– –
-406
Closed -$2.4K
UGI icon
1863
UGI
UGI
$7.33B
– –
-9,968
Closed -$228K
UHAL icon
1864
U-Haul Holding Co
UHAL
$14.6B
– –
-9,538
Closed -$589K
UHAL.B icon
1865
U-Haul Holding Co Series N
UHAL.B
$12.8B
– –
-270
Closed -$16.2K
TONX
1866
TON Strategy Co
TONX
$169M
– –
-750
Closed -$18.6K
VITL icon
1867
Vital Farms
VITL
$525M
– –
-6,395
Closed -$299K
INFN
1868
DELISTED
Infinera Corporation Common Stock
INFN
– –
-47,400
Closed -$289K
IBDP
1869
DELISTED
iShares iBonds Dec 2024 Term Corporate ETF
IBDP
– –
-1,000
Closed -$25.1K
TCS
1870
DELISTED
THE CONTAINER STORE GROUP, INC.
TCS
– –
-2,033
Closed -$16.5K
SQSP
1871
DELISTED
Squarespace, Inc.
SQSP
– –
-7,275
Closed -$317K
AUGX
1872
DELISTED
Augmedix, Inc. Common Stock
AUGX
– –
-221,749
Closed -$195K
PRFT
1873
DELISTED
Perficient Inc
PRFT
– –
-18,922
Closed -$1.42M
PWSC
1874
DELISTED
PowerSchool Holdings, Inc.
PWSC
– –
-453,930
Closed -$10.2M
LSXMK
1875
DELISTED
Liberty Media Corporation Series C Liberty SiriusXM Common Stock
LSXMK
– –
-4,749
Closed -$105K
72 73 74
75
76

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William Blair & Company's Q3 2024 Portfolio in Review

As of Q3 2024, William Blair & Company held 1,892 positions worth $34.1B, up 5% from $32.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q3 2024 filing shows 86 new, 671 increased, 778 reduced and 71 closed positions. Its largest new stake was PAR Technology: 73,733 shares worth $3.84M. The largest sale was DexCom, an estimated $128M.

By sector, the portfolio is most concentrated in Technology at 27% of assets, down from 27% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2024 buy was PAR Technology: 73,733 shares worth $3.84M.
  • William Blair & Company added most to NVIDIA in Q3 2024, an estimated $92.1M increase.
  • William Blair & Company's biggest Q3 2024 reduction was DexCom, cutting an estimated $128M.
  • William Blair & Company fully exited Blackrock in Q3 2024, selling an estimated $42M.
  • William Blair & Company's ten largest holdings make up 24% of its $34.1B portfolio in Q3 2024.
  • William Blair & Company opened 86 new positions and closed 71 in Q3 2024.
  • William Blair & Company's portfolio value rose 5% quarter-over-quarter to $34.1B.

Based on William Blair & Company's 13F filing for Q3 2024, filed 12 Nov 2024.