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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

ARM

ARM HOLDINGS PLC /UK

Superinvestors

Institutional investors holding ARM

Consensus →
InvestorFundWeightSharesValueQuarter
Chase ColemanTiger Global Management0.14%300,000$37.0M2024Q4
Viking Global InvestorsViking Global Investors0.13%600,000$32.1M2023Q3
Kenneth FisherFisher Asset Management0.00%2,732$299K2025Q4
Dodge & CoxDodge & Cox0.00%16,125$237K2000Q3

Congressional Activity

Congressional data coming soon

Insider Activity

86

Total trades

$112.5M

Volume

30

Buys

37

Sells

Last trade: Jun 2, 2026

Insider Tradeslast 90 days

DateInsiderTypeValue
Jun 2, 2026Laura Kathleen BartelsSell$4.4M
Jun 1, 2026Laura Kathleen BartelsSell$1.0M

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.

Jun 1, 2026
Laura Kathleen Bartels
Sell
$1.6M
May 28, 2026Laura Kathleen BartelsSell$1.4M
May 22, 2026Laura Kathleen BartelsSell$703K
May 21, 2026Laura Kathleen BartelsSell$808K
May 21, 2026Laura Kathleen BartelsSell$1.5M
May 21, 2026Laura Kathleen BartelsSell$1.3M
May 20, 2026Laura Kathleen BartelsSell$7.2M
May 20, 2026Laura Kathleen BartelsSell$782K
May 20, 2026Laura Kathleen BartelsSell$1.1M
May 19, 2026Laura Kathleen BartelsSell$2.4M
May 19, 2026Laura Kathleen BartelsSell$1.3M
May 19, 2026Laura Kathleen BartelsSell$8.8M
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsSell$7.9M
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsSell$90K
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsSell$30.0M
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsSell$768K
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsSell$7.6M
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsSell$5.1M
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsSell$4.5M
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsOption–
May 15, 2026Laura Kathleen BartelsSell$708K
May 15, 2026Laura Kathleen BartelsBuy–
May 15, 2026Laura Kathleen BartelsBuy–
May 11, 2026Laura Kathleen BartelsSell$174K
May 11, 2026Laura Kathleen BartelsSell$386K
May 11, 2026Laura Kathleen BartelsSell$1.1M
May 11, 2026Laura Kathleen BartelsSell$2.1M
May 11, 2026Laura Kathleen BartelsSell$2.3M
May 11, 2026Laura Kathleen BartelsSell$2.4M
May 11, 2026Laura Kathleen BartelsSell$1.6M
May 11, 2026Laura Kathleen BartelsSell$1.0M
Apr 23, 2026Laura Kathleen BartelsSell$1.5M
Apr 23, 2026Laura Kathleen BartelsSell$350K
Apr 23, 2026Laura Kathleen BartelsBuy–
Apr 23, 2026Laura Kathleen BartelsOption–
Apr 23, 2026Laura Kathleen BartelsBuy–
Apr 23, 2026Laura Kathleen BartelsOption–
Apr 23, 2026Laura Kathleen BartelsBuy–
Apr 23, 2026Laura Kathleen BartelsOption–
Apr 23, 2026Laura Kathleen BartelsSell$3.2M
Apr 23, 2026Laura Kathleen BartelsBuy–
Apr 22, 2026Laura Kathleen BartelsSell$3.8M