InvestorLens

ADPT — ADAPTIVE BIOTECHNOLOGIES COR

Public company

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For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

Why are billionaires buying ADPT?

Built from public SEC filings and public economic data. Not a recommendation.

Confidence
95
Institutional Conviction
Strong distribution · 0 buying vs 6 selling last quarter
10
Macro Tailwind
Macro conditions are mixed for this sector
56
Why? — Evidence & Confidence ▾

Of 6 tracked investors who changed their ADPT position last quarter, 0 bought and 6 sold (0% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 56/100 in a Overheat regime).

Supporting evidence
  • +5 tracked investors reported holding ADPT at their latest filing
  • +Macro Health is 56/100 in a Overheat regime — historically acceptable for this sectorsource
Contradicting evidence — always shown
  • −6 tracked investors reduced or exited last quarter (5 reduced, 1 sold out)
  • −13F data is disclosed up to 45 days after quarter end — positions may have changed since
Know the limits
  • · 13F disclosure lag (up to 45 days)
  • · Tracked investors are a sample, not the whole market
  • · Sector regime fit is a historical average, not a guarantee

Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/18/2026.

About ADAPTIVE BIOTECHNOLOGIES COR (ADPT)

ADAPTIVE BIOTECHNOLOGIES COR (ADPT) appears in the most recent 13F filings of 5 tracked institutional investors. The largest disclosed position is held by Andreas Halvorsen (Viking Global Investors), valued at $643M. Across recent filings, tracked investors recorded 8 new positions, 15 increased, 23 reduced, and 2 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ADPT

48
/100
Mixed Activity
Added / Increased23
Reduced23
Exited2
BearishBullish
Crowded Trade Score™

How many top investors track ADPT

33
/100
Emerging Interest
5investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

ADPT Ownership Composition

How ADAPTIVE BIOTECHNOLOGIES COR is held across tracked investor types, based on reported 13F positions.

Dominant Type
Other
90% of tracked value
Institutions
5
tracked investors
Total Reported
$716.2M
combined 13F value
Types4
  • Other89.8%
  • Growth & Innovation6.3%
  • Multi-Strategy / Quant2.3%
  • Macro1.6%
Other(1)
89.8%
Growth & Innovation(1)
6.3%
Multi-Strategy / Quant(2)
2.3%
Macro(1)
1.6%

Tracked investors currently reporting ADPT

2 tracked investors have since exited this position — listed separately below.

  • Andreas HalvorsenJun 30, 2026
    Viking Global Investors
    Shares
    30M
    Value
    $643.4M
    % Portfolio
    1.83%
  • Cathie WoodJun 30, 2026
    ARK Investment Management
    Shares
    2.1M
    Value
    $44.8M
    % Portfolio
    0.29%
  • Izzy EnglanderJun 30, 2026
    Millennium Management
    Shares
    504.9K
    Value
    $10.8M
    % Portfolio
    0.00%
  • Paul Tudor JonesJun 30, 2026
    Tudor Investment Corp
    Shares
    543.5K
    Value
    $11.7M
    % Portfolio
    0.02%
  • Ken GriffinJun 30, 2026
    Citadel Advisors
    Shares
    258.4K
    Value
    $5.5M
    % Portfolio
    0.00%

Previously held ADPT

These investors reported ADPT in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.

InvestorFirmLast reported sharesValue thenLast held
Steve CohenPoint72 Asset Management1M$14.2MMar 31, 2026
Ray DalioBridgewater Associates265.5K$4.3MDec 31, 2025

Recent activity

Frequently asked questions

How many institutional investors hold ADPT?
5 tracked institutional investors disclosed a position in ADPT (ADAPTIVE BIOTECHNOLOGIES COR) in their most recent 13F filing.
Who is the largest institutional holder of ADPT?
Andreas Halvorsen, Viking Global Investors, holds the largest disclosed position in ADPT, valued at $643M.
Did institutional ownership of ADPT increase or decrease?
Across recent 13F filings, tracked investors recorded 8 new positions, 15 increased, 23 reduced, and 2 fully exited ADPT.
Where does this ADPT ownership data come from?
SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.
ADPT (ADAPTIVE BIOTECHNOLOGIES COR) — Institutional Holders — InvestorLens