DOSSIER · 13F-HR · Q1 2026

AMERICAN CENTURY COMPANIES INC

$194.3B in tracked AUM across 2,830 positions as of Q1 2026.

AC
CIK 0000748054 · last filed Mar 31, 2026
Total AUM
$194.3B
as of Q1 2026
Holdings
2,830
positions
Whale Score
68
68
tracked
Activity
no data
changes this Q
AI Analysis · Q1 2026

American Century Companies ended Q1 2026 at $194.3B across 2,830 holdings, modestly lower than $199.0B. The active manager trimmed nearly every megacap leader — NVIDIA (-$1.2B, still the top holding at 5.48%), Amazon (-$1.1B), Alphabet (-$884M) and Apple (-$678M) — while building new stakes in Intuitive Surgical ($972M), Marsh & McLennan ($734M), Lam Research ($701M) and Micron ($554M). Adds in Vertiv, Costco and Netflix round out a quarter of disciplined profit-taking and selective redeployment.

A megacap-anchored core. NVIDIA leads at 5.48% ($10.6B), followed by Apple (3.29%), Microsoft (3.08%), Amazon (2.60%) and Alphabet (2.59%). The structure is conventional large-cap growth — but the manager spent the quarter taking profits across it.

Trimming winners. NVIDIA was reduced by $1.2B, Amazon by $1.1B, Alphabet by $884M, Apple by $678M and Tesla by $570M. Microsoft saw the largest single change at roughly $1.3B lower. This is the signature of an active book harvesting gains rather than abandoning a thesis.

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
NVDA
NVIDIA CORPORATION
$10.6B61.0M5.5%
02
AAPL
APPLE INC
$6.4B25.2M3.3%
03
MSFT
MICROSOFT CORP
$6.0B16.2M3.1%
04
AMZN
AMAZON COM INC
$5.1B24.3M2.6%
05
GOOGL
ALPHABET INC
$5.0B17.5M2.6%
06
AVGO
BROADCOM INC
$3.0B9.5M1.5%
07
META
META PLATFORMS INC
$2.9B5.0M1.5%
08
GOOG
ALPHABET INC
$2.7B9.4M1.4%
09
MA
MASTERCARD INCORPORATED
$2.7B5.4M1.4%
10
TSLA
TESLA INC
$2.5B6.8M1.3%

Filing history

2026Q1Mar 31
$194.3B 2.4%
2,830 positionsView →
2025Q4Dec 31
$199.0B 1.2%
2,811 positionsView →
2025Q3Sep 30
$196.5B 6.8%
2,779 positionsView →
2025Q2Jun 30
$184.1B 12.9%
2,847 positionsLocked
2025Q1Mar 31
$163.0B 6.4%
2,881 positionsLocked
2024Q4Dec 31
$174.1B 1.1%
2,882 positionsLocked
2024Q3Sep 30
$172.1B 5.3%
2,878 positionsLocked
2024Q2Jun 30
$163.4B 2.7%
2,878 positionsLocked
2024Q1Mar 31
$159.1B 9.4%
2,924 positionsLocked
2023Q4Dec 31
$145.5B 13.7%
2,875 positionsLocked
2023Q3Sep 30
$127.9B 3.6%
2,807 positionsLocked
2023Q2Jun 30
$132.6B 4.5%
2,788 positionsLocked
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