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

ADPT

Adaptive Biotechnologies Corp

Superinvestors

Institutional investors holding ADPT

Consensus →
InvestorFundWeightSharesValueQuarter
Viking Global InvestorsViking Global Investors1.16%29,993,708$416.3M2026Q1
Donald Smith & CoDonald Smith & Co0.09%953,900$2.6M2011Q3
Meridian / ArrowMarkMeridian Contrarian Fund0.05%104,224$5.0M2020Q2
Polen Capital ManagementPolen Capital Management0.01%116,051$1.6M2026Q1

Congressional Activity

Congressional data coming soon

Insider Activity

66

Total trades

$14.1M

Volume

0

Buys

45

Sells

Last trade: May 18, 2026

Insider Tradeslast 90 days

DateInsiderTypeValue
May 18, 2026Kyle PiskelSell$41K
Apr 27, 2026Kyle PiskelSell$271K

Congressional Tradeslast 90 days

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

Apr 27, 2026
Kyle Piskel
Option
$124K
Apr 22, 2026Kyle PiskelSell$269K
Apr 22, 2026Kyle PiskelOption$125K