AC

American Century Companies INC

Diversified strategyMomentum follower

Total reported value

$194.3B

Reporting period: 2026-03-31 · Number of holdings: 2830

AMERICAN CENTURY COMPANIES INC disclosed 2830 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $194.3B and a quarterly turnover rate of 24.4%.

Personality snowflake

Concentration
3.46
Portfolio Stability
24.43
Momentum/Contrarian
69.79
Sector conviction
44.2
Diversification
100
Sizing Uniformity
51.5

Recent moves

  • Trim MSFT

    +6.8%　-$1.3B

  • Trim AMZN

    -8.8%　-$1.1B

  • Trim NVDA

    -3.6%　-$1.2B

  • Trim GOOGL

    -7.4%　-$883.6M

  • Trim AAPL

    -3.1%　-$678.4M

  • Trim TSLA

    -1.4%　-$570.0M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#TickerIssuerAsset SubclassWeightWeight ChangeShares Change4Q Trend
1NVDANvidia CORPStock-Tech5.48%-0.45%-3.58%
2AAPLApple INCStock-Tech3.29%-0.27%-3.15%
3MSFTMicrosoft CORPStock-Tech3.08%-0.60%+6.79%
4AMZNAmazon.com INCStock-Consumer Disc2.60%-0.49%-8.77%
5GOOGLAlphabet Inc-cl AStock-Comm Services2.59%-0.38%-7.42%
6AVGOBroadcom INCStock-Tech1.52%-0.11%+2.01%
7METAMeta Platforms Inc-class AStock-Comm Services1.47%-0.20%-0.81%
8GOOGAlphabet Inc-cl CStock-Comm Services1.39%-0.16%-4.37%
9MAMastercard INC - AStock-Financials1.38%-0.20%-2.54%
10TSLATesla INCStock-Consumer Disc1.29%-0.26%-1.38%
11TSMTaiwan Semiconductor-sp AdrStock-Tech1.10%—-5.73%
12NFLXNetflix INCStock-Comm Services0.96%+0.13%+10.79%
13COSTCostco Wholesale CORPStock-Consumer Staples0.93%+0.18%+3.73%
14LLYEli Lilly & CoStock-Healthcare0.87%-0.14%-0.86%
15AMATApplied Materials INCStock-Tech0.62%+0.15%-2.34%
16JPMJpmorgan Chase & CoStock-Financials0.57%—+0.65%
17ADIAnalog Devices INCStock-Tech0.52%—-4.02%
18ISRGIntuitive Surgical INCStock-Healthcare0.50%-0.10%+0.29%
19XOMExxon Mobil CORPStock-Energy0.46%+0.14%-0.57%
20VRTVertiv Holdings Co-aStock-Industrials0.43%+0.17%+4.10%
21HWMHowmet Aerospace INCStock-Industrials0.43%—-8.91%
22NETCloudflare INC - Class AStock-Tech0.39%—+14.27%
23MRSHMarsh & Mclennan CosStock-Financials0.38%+0.16%+81.69%
24ABBVAbbvie INCStock-Healthcare0.37%—-5.62%
25JNJJohnson & JohnsonStock-Healthcare0.36%—-17.66%
26LRCXLam Research CORPStock-Tech0.36%+0.14%+28.98%
27APHAmphenol Corp-cl AStock-Tech0.35%—-9.01%
28MRKMerck & Co. INC.Stock-Healthcare0.34%—+3.34%
29PLTRPalantir Technologies Inc-aStock-Tech0.32%—+21.49%
30ALNYAlnylam Pharmaceuticals INCStock-Healthcare0.31%—+21.36%
31NSCNorfolk Southern CORPStock-Industrials0.30%—+0.00%
32TJXTjx Companies INCStock-Consumer Disc0.30%—+8.49%
33VZVerizon Communications INCStock-Comm Services0.29%—-15.36%
34GILDGilead Sciences INCStock-Healthcare0.29%—-7.34%
35MUMicron Technology INCStock-Tech0.29%—+10.03%
36BDXBecton Dickinson And CoStock-Healthcare0.28%—+8.83%
37GEVGE Vernova INCStock-Industrials0.26%+0.08%+6.28%
38MDTMedtronic plcStock-Healthcare0.25%—+13.39%
39ORCLOracle CORPStock-Tech0.25%-0.17%-24.23%
40ASMLASML Holding N.V.Stock-Tech0.24%+0.09%+33.31%
41WMBWilliams Cos INCStock-Energy0.24%—-5.54%
42CATCaterpillar INCStock-Industrials0.24%—+2.61%
43AVUSAvantis U.s. Equity ETFETF-Other0.24%—+8.73%
44DDOGDatadog INC - Class AStock-Tech0.23%—+4.27%
45BKRBaker Hughes CoStock-Energy0.23%—-13.67%
46PKGPackaging CORP Of AmericaStock-Consumer Disc0.23%—-4.17%
47CVXChevron CORPStock-Energy0.22%—-7.07%
48REGNRegeneron PharmaceuticalsStock-Healthcare0.22%—+1.92%
49WMTWalmart INCStock-Consumer Staples0.22%—-5.05%
50DUKDuke Energy CORPStock-Utilities0.22%—+5.58%
1–50 of 2,830

Holding changes this quarter

American Century Companies INC's most significant position changes for 2026-03-31: New buy: AstraZeneca PLC (AZN); Sold out: Astrazeneca Plc-spons Adr (AZNN); Sold out: ICON Public Limited Company (ICLR); Sold out: New Gold INC (NGDN); Add: Microsoft CORP (MSFT) — shares +6.79%.

Position changes disclosed by American Century Companies INC for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#TickerIssuerWeight ChangeShares ChangeAction
1COSTCostco Wholesale CORP+0.2%+3.73%Add
2VRTVertiv Holdings Co-a+0.2%+4.10%Add
3MRSHMarsh & Mclennan Cos+0.2%+81.69%Add
4AMATApplied Materials INC+0.2%-2.34%Trim
5LRCXLam Research CORP+0.1%+28.98%Add
6XOMExxon Mobil CORP+0.1%-0.57%Trim
7NFLXNetflix INC+0.1%+10.79%Add
8HONHoneywell International INC+0.1%+352.98%Add
9SMSm Energy Co+0.1%+88.37%Add
10ASMLASML Holding N.V.+0.1%+33.31%Add
11OCOwens Corning+0.1%+549.51%Add
12PWRQuanta Services INC+0.1%+208.81%Add
13FNFabrinet+0.1%+179.85%Add
14PLPlanet Labs Pbc+0.1%+7134.28%Add
15TGTTarget CORP+0.1%+67.71%Add
16CDECoeur Mining INC+0.1%+586.09%Add
17GEVGE Vernova INC+0.1%+6.28%Add
18CIENCiena CORP+0.1%+112.00%Add
19MURMurphy Oil CORP+0.1%+59.91%Add
20BABAAlibaba Group Holding-sp Adr-0.1%-17.00%Trim
21ELEstee Lauder Companies-cl A-0.1%-52.38%Trim
22DTDynatrace INC-0.1%-35.66%Trim
23BKNGBooking Holdings INC-0.1%-27.77%Trim
24ISRGIntuitive Surgical INC-0.1%+0.29%Add
25ZSZscaler INC-0.1%-0.72%Trim
26SNOWSnowflake INC-0.1%-1.86%Trim
27AVGOBroadcom INC-0.1%+2.01%Add
28GPKGraphic Packaging Holding Co-0.1%-59.45%Trim
29SPGIS&p Global INC-0.1%-42.16%Trim
30ARESAres Management CORP - A-0.1%-69.48%Trim
31LLYEli Lilly & Co-0.1%-0.86%Trim
32APPApplovin Corp-class A-0.1%-0.90%Trim
33BSXBoston Scientific CORP-0.1%-43.12%Trim
34CRMSalesforce INC-0.2%-57.67%Trim
35KVUEKenvue INC-0.2%-64.32%Trim
36GOOGAlphabet Inc-cl C-0.2%-4.37%Trim
37FICOFair Isaac CORP-0.2%-26.32%Trim
38ORCLOracle CORP-0.2%-24.23%Trim
39METAMeta Platforms Inc-class A-0.2%-0.81%Trim
40MAMastercard INC - A-0.2%-2.54%Trim
41TSLATesla INC-0.3%-1.38%Trim
42AAPLApple INC-0.3%-3.15%Trim
43GOOGLAlphabet Inc-cl A-0.4%-7.42%Trim
44NVDANvidia CORP-0.5%-3.58%Trim
45AMZNAmazon.com INC-0.5%-8.77%Trim
46MSFTMicrosoft CORP-0.6%+6.79%Add
47AZNAstraZeneca PLC—NEWNew buy
48AZNNAstrazeneca Plc-spons Adr—EXITSold out
49ICLRICON Public Limited Company—EXITSold out
50NGDNNew Gold INC—EXITSold out

FAQ

What is American Century Companies INC and what type of investor is it?
American Century Companies INC is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $194.3B, spread across 2830 disclosed positions.
What are American Century Companies INC's largest equity positions?
Based on the latest 13F filing, American Century Companies INC's top holdings by market value are: 1. Nvidia CORP (NVDA) — $10.6B (5.5%) 2. Apple INC (AAPL) — $6.4B (3.3%) 3. Microsoft CORP (MSFT) — $6.0B (3.1%) 4. Amazon.com INC (AMZN) — $5.1B (2.6%) 5. Alphabet Inc-cl A (GOOGL) — $5.0B (2.6%)
What changes did American Century Companies INC make in its most recent portfolio filing?
In the latest reported quarter, American Century Companies INC made 50 notable position adjustments: 1 new positions were initiated, 20 existing holdings were added to, 26 positions were partially reduced, and 3 were completely exited. The largest of these moves: New buy: AstraZeneca PLC (AZN); Sold out: Astrazeneca Plc-spons Adr (AZNN); Sold out: ICON Public Limited Company (ICLR); Sold out: New Gold INC (NGDN); Add: Microsoft CORP (MSFT) — shares +6.79%
What sectors does American Century Companies INC focus on?
American Century Companies INC is concentrated in the following sectors based on its current disclosed equity portfolio: • Information Technology: 28.4% • Financials: 12.2% • Consumer Discretionary: 12.0% • Industrials: 10.8% • Health Care: 9.6% • Communication Services: 8.9%