BLAIR WILLIAM & CO/IL

Q3 2025 13F-HR Holdings

Location
Chicago, IL
Holdings as of
9/30/2025
Date filed
11/12/2025
Form type
13F-HR
Num holdings
1,844
Total value ($000)
$37,569,258
Net value change ($000)
+1,566,803 (4.4%)
New positions
101
Sold out positions
77
Turnover %
0.2%
Sector allocation + QoQ delta (equities-only)
Prev filing: 7/24/2025 Next filing: 2/17/2026 SEC filing

Snapshot: Change Analysis

Compared to Q2 2025
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)
AAPL 289,410 23.4%
GOOGL 202,092 35.8%
APP 173,713 323.9%
GOOGL 169,059 38.0%
NVDA 168,657 19.1%
IDXX 79,679 13.7%
PSTG 78,647 43.7%
BWXT 75,017 51.9%
META 72,958 17.1%
ABBV 59,169 25.4%
Top Reduces (Value $000, Stocks/ETFs)
FISV -113,875 -31.3%
ADBE -79,990 -36.6%
CMG -71,157 -54.8%
V -65,488 -8.9%
ACN -65,236 -37.1%
CYBR -64,287 -78.9%
ZTS -55,033 -21.6%
DXCM -50,802 -26.4%
ISRG -48,408 -19.1%
PGR -46,337 -11.5%
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