InvestorLens

PACB — PACIFIC BIOSCIENCES OF CALIFORNIA, INC.

Public company

Sign in to save5 tracked investors reported this
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 PACB?

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

Confidence
50
Institutional Conviction
Net distribution · 1 buying vs 1 selling last quarter
41
Macro Tailwind
Macro conditions are mixed for this sector
56
Why? — Evidence & Confidence ▾

Of 2 tracked investors who changed their PACB position last quarter, 1 bought and 1 sold (50% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 56/100 in a Overheat regime).

Supporting evidence
  • +1 tracked investor added or increased positions last quarter (Ray Dalio)
  • +5 tracked investors reported holding PACB at their latest filing
  • +Macro Health is 56/100 in a Overheat regime — historically acceptable for this sectorsource
Contradicting evidence — always shown
  • −1 tracked investor reduced or exited last quarter (1 reduced, 0 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 PACIFIC BIOSCIENCES OF CALIFORNIA, INC. (PACB)

PACIFIC BIOSCIENCES OF CALIFORNIA, INC. (PACB) appears in the most recent 13F filings of 5 tracked institutional investors. The largest disclosed position is held by Cathie Wood (ARK Investment Management), valued at $338M. Across recent filings, tracked investors recorded 4 new positions, 6 increased, 6 reduced, and 2 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in PACB

56
/100
Mixed Activity
Added / Increased10
Reduced6
Exited2
BearishBullish
Crowded Trade Score™

How many top investors track PACB

33
/100
Emerging Interest
5investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

PACB Ownership Composition

How PACIFIC BIOSCIENCES OF CALIFORNIA, INC. is held across tracked investor types, based on reported 13F positions.

Dominant Type
Growth & Innovation
79% of tracked value
Institutions
5
tracked investors
Total Reported
$63.1M
combined 13F value
Types3
  • Growth & Innovation79.3%
  • Multi-Strategy / Quant18.6%
  • Macro2.1%
Growth & Innovation(1)
79.3%
Multi-Strategy / Quant(2)
18.6%
Macro(2)
2.1%

Tracked investors currently reporting PACB

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

  • Cathie WoodJun 30, 2026
    ARK Investment Management
    Shares
    29.8M
    Value
    $50M
    % Portfolio
    0.32%
  • Izzy EnglanderJun 30, 2026
    Millennium Management
    Shares
    4M
    Value
    $6.7M
    % Portfolio
    0.00%
  • Ken GriffinJun 30, 2026
    Citadel Advisors
    Shares
    3M
    Value
    $5.1M
    % Portfolio
    0.00%
  • Paul Tudor JonesJun 30, 2026
    Tudor Investment Corp
    Shares
    684.7K
    Value
    $1.2M
    % Portfolio
    0.00%
  • Ray DalioJun 30, 2026
    Bridgewater Associates
    Shares
    102.8K
    Value
    $172.6K
    % Portfolio
    0.00%

Previously held PACB

These investors reported PACB 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 Management3M$5.5MDec 31, 2025
George SorosSoros Fund Management1M$1.2MMar 31, 2025

Recent activity

Frequently asked questions

How many institutional investors hold PACB?
5 tracked institutional investors disclosed a position in PACB (PACIFIC BIOSCIENCES OF CALIFORNIA, INC.) in their most recent 13F filing.
Who is the largest institutional holder of PACB?
Cathie Wood, ARK Investment Management, holds the largest disclosed position in PACB, valued at $338M.
Did institutional ownership of PACB increase or decrease?
Across recent 13F filings, tracked investors recorded 4 new positions, 6 increased, 6 reduced, and 2 fully exited PACB.
Where does this PACB 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.