How many institutional investors hold PACB?

4 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 $70M.

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.

PACB — PACIFIC BIOSCIENCES OF CALIFORNIA, INC.

Name: PACIFIC BIOSCIENCES OF CALIFORNIA, INC. (PACB) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

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

About PACIFIC BIOSCIENCES OF CALIFORNIA, INC. (PACB)

PACIFIC BIOSCIENCES OF CALIFORNIA, INC. (PACB) appears in the most recent 13F filings of 4 tracked institutional investors. The largest disclosed position is held by Cathie Wood (ARK Investment Management), valued at $70M. Across recent filings, tracked investors recorded 1 new positions, 1 increased, 1 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in PACB

/100

Institutional Accumulation

Added / Increased2

Reduced1

Exited0

BearishBullish

Crowded Trade Score™

How many top investors track PACB

/100

Emerging Interest

4investors

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 Funds

77% of tracked value

Institutions

tracked investors

Total Reported

$62.3M

combined 13F value

Growth Funds76.9%
Other14.2%
Hedge Funds8.9%

Growth Funds(1)

76.9%

Other(2)

14.2%

Hedge Funds(1)

8.9%

Tracked investors reporting PACB

Investor	Firm	Shares	Market value	% of portfolio	As of
Cathie Wood	ARK Investment Management	36.3M	$47.9M	0.37%	Mar 31, 2026
Izzy Englander	Millennium Management	4.9M	$6.5M	0.00%	Mar 31, 2026
Ken Griffin	Citadel Advisors	1.8M	$2.4M	0.00%	Mar 31, 2026
Steve Cohen	Point72 Asset Management	3M	$5.5M	0.01%	Dec 31, 2025

Cathie WoodMar 31, 2026
ARK Investment Management
Shares
36.3M
Value
$47.9M
% Portfolio
0.37%
Izzy EnglanderMar 31, 2026
Millennium Management
Shares
4.9M
Value
$6.5M
% Portfolio
0.00%
Ken GriffinMar 31, 2026
Citadel Advisors
Shares
1.8M
Value
$2.4M
% Portfolio
0.00%
Steve CohenDec 31, 2025
Point72 Asset Management
Shares
3M
Value
$5.5M
% Portfolio
0.01%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Cathie Wood	Reduced	-2.66%	$47.9M	May 12, 2026
Cathie Wood	Increased	20.50%	$69.7M	Feb 11, 2026
Cathie Wood	New	—	$39.6M	Nov 12, 2025

Cathie Wood
Reduced
$47.9M(-2.66%)May 12, 2026
Cathie Wood
Increased
$69.7M(20.50%)Feb 11, 2026
Cathie Wood
New
$39.6MNov 12, 2025

Frequently asked questions

How many institutional investors hold PACB?: 4 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 $70M.
Did institutional ownership of PACB increase or decrease?: Across recent 13F filings, tracked investors recorded 1 new positions, 1 increased, 1 reduced, and 0 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.