WESTFIELD CAPITAL MANAGEMENT CO LP

Q4 2023 13F-HR Holdings

Location
Boston, MA
Holdings as of
12/31/2023
Date filed
2/9/2024
Form type
13F-HR
Num holdings
239
Total value ($000)
$17,157,520
Net value change ($000)
+2,476,724 (16.9%)
New positions
35
Sold out positions
30
Turnover %
13.0%
Sector allocation + QoQ delta (equities-only)
Prev filing: 11/13/2023 Next filing: 5/10/2024 SEC filing

Snapshot: Change Analysis

Compared to Q3 2023
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 161,923 38.2%
ASND 151,622 42.6%
ABBV 130,134 NEW
ROST 102,083 NEW
FIX 87,733 NEW
MHO 80,959 98.5%
BLDR 77,942 49.2%
MCD 71,706 1474.8%
CSGP 70,923 138.2%
EWBC 67,692 NEW
Top Reduces (Value $000, Stocks/ETFs)
FTNT -141,561 -100.0%
SPLUNK INC -136,009 -100.0%
SRPT -97,752 -100.0%
VC -91,697 -100.0%
DEO -73,886 -100.0%
LLY -55,504 -36.1%
FLG -51,027 -87.6%
BIO -50,055 -38.5%
ANET -49,361 -100.0%
TECH -47,626 -100.0%
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