Westfield Capital Management Co. LP
Annual return '25
+10.3%
SPY '25
+17.7%
Alpha
-7.4ptsvs SPY
Invested
$23.8B
Holdings
250
Trades YTD
0
Performance · Fund vs SPY
Cumulative return · quarterly snapshotsCoverage 95%. 3 quarters of 2025 measured against SPY adj-close benchmark.
Top holdings · current snapshot
Source: 13F-HR01
$NVDA
NVIDIA CORPORATION
Q1 2026: Sold 99.2% (5.95M → 45.4k shares)
4.6%
02
$ASND
ASCENDIS PHARMA A/S
Q1 2026: Sold 100.0% (5.19M → 1.3k shares)
4.6%
03
$FIX
COMFORT SYS USA INC
Q1 2026: Exited (was 668.8k shares)
3.6%
04
$AAPL
APPLE INC
Q1 2026: Sold 87.1% (3.27M → 422.0k shares)
3.3%
05
$FTAI
FTAI AVIATION LTD
Q1 2026: Exited (was 2.35M shares)
2.9%
06
$MSFT
MICROSOFT CORP
Q1 2026: Sold 88.2% (1.62M → 190.5k shares)
2.6%
07
$GOOGL
ALPHABET INC
Q1 2026: Sold 97.8% (2.18M → 47.0k shares)
2.4%
08
$HWM
HOWMET AEROSPACE INC
Q1 2026: Sold 100.0% (2.22M → 917 shares)
2.2%
09
$VRT
VERTIV HOLDINGS CO
Q1 2026: Exited (was 2.28M shares)
2.0%
10
$AMZN
AMAZON COM INC
Q1 2026: Sold 99.1% (2.33M → 20.1k shares)
2.0%
Recent trades · Last 90 days
No Form 4 / 13D / 13G trade events on file in the recent window. 13F filers report position snapshots quarterly rather than per-trade events, so this section is most useful for managers who also file Form 4 or 13D/G.
Convergence · Pattern Engine ships in v1.1
30-day windowIn development
Convergence participation lands with the Pattern Engine.
Once the Pattern Engine ships, this section will list every active convergence event this fund is named in — with the other named funds, the Congress members on the same name, and combined position size.
Source data: SEC EDGAR · 13F-HR filings · Performance through 2025-12-31 · Last refreshed 08:25 UTC.