BLAIR WILLIAM & CO/IL

Q3 2026 13F-HR Holdings

Location
Chicago, IL
Holdings as of
9/30/2026
Date filed
11/10/2026
Form type
13F-HR
Num holdings
1,971
Total value ($000)
$38,593,109
Net value change ($000)
+204,949 (0.5%)
New positions
99
Sold out positions
125
Turnover %
0.8%
Sector allocation + QoQ delta (equities-only)
Prev filing: 8/11/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q2 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
MSFT 462,978 36.1%
AAPL 240,269 14.5%
PSTG 162,586 67.7%
NVDA 159,362 14.8%
XOM 147,698 NEW
VEEV 71,596 53.7%
NOW 68,631 30.9%
ANET 64,948 23.8%
CRWD 58,968 28.4%
VTI 50,016 25.6%
Top Reduces (Value $000, Stocks/ETFs)
GEV -164,653 -21.2%
BWXT -111,499 -36.8%
WSO -102,463 -43.6%
AAON -73,774 -37.9%
GOOG -54,906 -5.3%
HD -51,483 -20.9%
GOOGL -50,155 -5.8%
TDG -49,484 -22.5%
BA -48,953 -25.7%
APP -48,577 -78.0%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type