13FBOX
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC · 13F Holdings
Options Calculator Rankings

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

No.275 Data as of 2026Q2
Latest AUM (Q2 2026)
$33.25B
QoQ Change Q1 2026
+$2.99B+9.9%
Holdings
403
New Buys
47
Adds
119
Reduces
230
Exits
57
Unchanged
7
Holdings Value Trend
Holdings by Sector
Stock Ownership TrendPortfolio %Prev Q %Q2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
TAIWAN SEMICONDUCTOR MANUFACTSM
7.09%6.16%$2.36B4.9M$1.87B5.5M-581,852-10.54%Reduce
NVIDIA CORPORATIONNVDA
5.17%5.15%$1.72B8.6M$1.56B8.9M-342,735-3.83%Reduce
ALPHABET INCGOOGL
3.43%2.38%$1.14B3.2M$720.2M2.5M+686,407+27.41%Add
APPLE INCAAPL
2.84%4.04%$943.3M3.3M$1.22B4.8M-1.6M-32.26%Reduce
BROADCOM INCAVGO
2.34%2.25%$776.7M2.1M$681.4M2.2M-145,423-6.61%Reduce
MICROSOFT CORPMSFT
2.3%3.54%$764.2M2.0M$1.07B2.9M-848,140-29.28%Reduce
META PLATFORMS INCMETA
1.61%1.92%$535.2M950,115$579.6M1.0M-63,007-6.22%Reduce
AMAZON COM INCAMZN
1.42%2.18%$473.6M2.0M$658.9M3.2M-1.2M-37.19%Reduce
MASTERCARD INCORPORATEDMA
1.42%1.75%$471.5M918,005$530.0M1.1M-142,646-13.45%Reduce
ADVANCED MICRO DEVICES INCAMD
1.33%0.7%$443.5M763,517$212.1M1.0M-279,077-26.77%Reduce
APPLIED MATLS INCAMAT
1.08%0.04%$360.0M497,946$11.9M34,940+463,006+1,325.15%Add
GE AEROSPACEGE
0.89%$295.5M790,801$00+790,801New Buy
ASTRAZENECA PLCAZN
0.85%1.25%$283.2M1.5M$377.3M1.9M-427,360-22.00%Reduce
PPRIMO BRANDS CORPORATIONPRMB
0.84%0.81%$279.3M11.4M$245.8M13.1M-1.6M-12.48%Reduce
EEVERPURE INC CL AEVPR
0.82%0.56%$272.2M3.5M$170.1M2.9M+573,900+19.92%Add
AMPHENOL CORPAPH
0.81%0.45%$270.7M1.5M$136.1M1.1M+457,625+42.47%Add
LINDE PLCLIN
0.79%1.04%$262.0M504,953$315.5M636,338-131,385-20.65%Reduce
OONTO INNOVATION INCONTO
0.76%0.65%$251.8M665,377$197.7M964,213-298,836-30.99%Reduce
BORGWARNER INCBWA
0.76%0.52%$251.3M3.8M$156.5M2.9M+900,645+31.23%Add
CCARLYLE GROUP INC COMCG
0.75%1.01%$249.1M5.9M$304.9M6.3M-386,204-6.13%Reduce
ARGENX SE SPONSORED ADRARGX
0.74%0.64%$245.5M264,617$194.4M266,067-1,450-0.54%Reduce
MMUELLER INDS INCMLI
0.73%0.77%$244.2M2.0M$233.8M2.1M-123,590-5.86%Reduce
MMONSTER BEVERAGE CORP NEW COMMNST
0.73%0.7%$244.0M2.5M$212.7M2.9M-397,111-13.53%Reduce
F5 INCFFIV
0.73%0.62%$243.9M586,271$188.0M649,948-63,677-9.80%Reduce
CREDICORP LTDBAP
0.73%0.7%$243.5M625,144$211.2M622,690+2,454+0.39%Add
CURTISS WRIGHT CORPCW
0.72%0.52%$240.4M317,306$158.1M232,069+85,237+36.73%Add
Itau Unibanco H-Spon PRF ADRITUB
0.69%0.88%$231.1M28.3M$265.6M31.7M-3.4M-10.73%Reduce
SNOWFLAKE INC COM SHSSNOW
0.69%0.56%$229.3M901,087$170.1M1.1M-226,438-20.08%Reduce
TTWIST BIOSCIENCE CORPTWST
0.67%0.83%$223.7M2.2M$250.4M5.3M-3.1M-58.73%Reduce
TEVA PHARMACEUTICAL INDS LTD SPONSORED ADSTEVA
0.67%0.14%$223.4M6.6M$42.9M1.4M+5.2M+362.47%Add
UNITEDHEALTH GROUP INCUNH
0.65%0.6%$217.5M523,387$182.2M673,263-149,876-22.26%Reduce
CROWDSTRIKE HLDGS INCCRWD
0.65%$214.8M281,409$00+281,409New Buy
RREGAL REXNORD CORPORATION COMRRX
0.64%0.52%$212.3M891,139$156.8M837,493+53,646+6.41%Add
KRYSTAL BIOTECH INCKRYS
0.64%0.35%$211.9M570,153$105.2M407,178+162,975+40.03%Add
CCARPENTER TECHNOLOGY CORPCRS
0.62%0.46%$205.2M332,607$138.3M350,896-18,289-5.21%Reduce
PPOWER INTEGRATIONS INCPOWI
0.6%0.4%$199.5M2.4M$121.9M2.4M+1,330+0.06%Add
NVENT ELECTRIC PLCNVT
0.6%0.48%$198.1M1.2M$145.9M1.2M-66,111-5.36%Reduce
GUARDANT HEALTH INCGH
0.59%0.29%$196.7M1.3M$87.9M951,114+360,206+37.87%Add
HALOZYME THERAPEUTICS INCHALO
0.59%0.54%$196.5M2.5M$163.3M2.5M-14,925-0.59%Reduce
TTALEN ENERGY CORPTLN
0.58%0.55%$191.2M497,660$167.7M525,214-27,554-5.25%Reduce
TRANSUNIONTRU
0.57%0.66%$191.1M2.6M$200.0M2.9M-242,443-8.39%Reduce
CAMECO CORPCCJ
0.57%0.6%$189.3M1.9M$182.7M1.7M+176,432+10.49%Add
SSTERLING INFRASTRUCTURE INCSTRL
0.56%0.44%$187.8M223,697$131.7M323,421-99,724-30.83%Reduce
COSTCO WHOLESALE CORPORATIONCOST
0.56%1%$186.5M199,355$301.4M302,468-103,113-34.09%Reduce
AALIGNMENT HEALTHCARE INCALHC
0.56%0.3%$184.8M7.8M$91.9M5.2M+2.5M+48.84%Add
CC H ROBINSON WORLDWIDE INCHRW
0.55%0.57%$184.3M978,297$173.0M1.0M-63,361-6.08%Reduce
SEAGATE TECHNOLOGY HLDNGS PLSTX
0.55%$184.2M190,847$00+190,847New Buy
DIODES INCDIOD
0.55%0.1%$184.2M1.7M$30.1M441,562+1.2M+281.08%Add
BWX TECHNOLOGIES INCBWXT
0.55%0.66%$183.2M941,233$200.8M981,782-40,549-4.13%Reduce
AKAMAI TECHNOLOGIES INCAKAM
0.55%0.61%$181.5M1.5M$185.9M1.6M-83,593-5.16%Reduce

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow