DOSSIER · 13F-HR · Q3 2026

CONGRESS ASSET MANAGEMENT CO

$15.4B in tracked AUM across 406 positions as of Q3 2026.

CA
CIK 0000897378 · last filed Sep 30, 2026
Total AUM
$15.4B
as of Q3 2026
Holdings
406
—
positions
Whale Score
64
64
tracked
Activity
—
no data
changes this Q
AI Analysis · Q3 2026

Comprehensive Analysis of SEC 13F Filing: Congress Asset Management Co

1. Portfolio Overview

Congress Asset Management Co. has reported a significant expansion in its portfolio management scope for the quarter ending December 31, 2025. The total portfolio value surged by 100.0%, growing from $7.10 billion to $14.21 billion. While this exact doubling suggests a substantial influx of new capital or a shift in reporting scope, the accompanying turnover data indicates a major strategic piv...

The portfolio remains highly diversified, comprising 381 total holdings. However, the firm executed a high level of churn this quarter. The filing data reveals a dynamic restructuring: 27 new positions were established, 27 positions were completely sold off, and 15 existing positions were reduced, with only 8 seeing increases. This level of activity indicates a tactical reallocation of assets, moving away from specific sub-sectors (particularly in software and smaller-cap tech) to establish a core position in large-cap growth leaders.

2. Key Holdings

The composition of the top 50 holdings reflects a "Barbell" strategy, balancing mega-cap technology stalwarts with high-conviction mid-cap growth and industrial names.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q3 2026. Methodology

Quarter at a glance — Q3 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q3 2026.

#HoldingValueSharesWeight
01
NVDA
NVIDIA Corp.
$587M2.6M3.8%
02
AAPL
Apple Inc.
$531M1.6M3.4%
03
GOOGL
Alphabet Inc.
$425M1.2M2.8%
04
MSFT
Microsoft Corp.
$411M801K2.7%
05
AVGO
Broadcom Inc
$288M821K1.9%
06
HALO
Halozyme Therapeutics Inc
$252M2.3M1.6%
07
ANET
Arista Networks Inc
$214M1.0M1.4%
08
LGND
Ligand Pharmaceuticals Incorporated
$206M659K1.3%
09
META
Meta Platforms Inc
$204M281K1.3%
10
RGEN
Repligen Corporation
$196M1.0M1.3%

Filing history

2026Q3Sep 30
$15.4B▼ 5.0%
406 positionsView →
2026Q2Jun 30
$16.3B▲ 16.5%
376 positionsView →
2026Q1Mar 31
$14.0B▼ 1.8%
417 positionsView →
2025Q4Dec 31
$14.2B▼ 5.5%
381 positionsView →
2025Q3Sep 30
$15.0B▲ 3.1%
392 positionsLocked
2025Q2Jun 30
$14.6B▲ 9.1%
382 positionsLocked
2025Q1Mar 31
$13.4B▼ 9.6%
365 positionsLocked
2024Q4Dec 31
$14.8B▲ 0.9%
386 positionsLocked
2024Q3Sep 30
$14.7B▲ 5.1%
357 positionsLocked
2024Q2Jun 30
$14.0B▼ 0.5%
364 positionsLocked
2024Q1Mar 31
$14.0B▲ 10.4%
357 positionsLocked
2023Q4Dec 31
$12.7B▲ 12.3%
371 positionsLocked
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