Company · Ownership research

PACIFIC BIOSCIENCES OF CALIFORNIA, INC. PACB

CIK 0001299130 · CUSIP 69404D108

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 69404D108 (PACB), not CUSIP 69404D908 (PACB), CUSIP 69404D958 (PACB), and does not merge CUSIPs.

This page lists the top 20 of 226 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	ARK Investment Management LLC CIK 1697748 · View history	$43.04M 36,478,441 shares	0.43%	+434.08K(+1.20%)Added	SEC filing ↗ May 7, 2025	▾
02	BlackRock, Inc. CIK 2012383 · View history	$27.68M 23,455,252 shares	0.00%	-1.14M(-4.60%)Reduced	SEC filing ↗ May 2, 2025	▾
03	MADRONE ADVISORS, LLC CIK 1964563 · View history	$27.60M 23,391,915 shares	4.62%	0(0.00%)Unchanged	SEC filing ↗ May 14, 2025	▾
04	EDMOND DE ROTHSCHILD HOLDING S.A. CIK 1649647 · View history	$25.79M 21,855,180 shares	0.45%	+508.70K(+2.40%)Added	SEC filing ↗ May 15, 2025	▾
05	SOFTBANK GROUP CORP. CIK 1065521 · View history	$24.13M 20,451,570 shares	0.08%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
06	VANGUARD GROUP INC CIK 102909 · View history	$19.19M 16,263,464 shares	0.00%	+1.04M(+6.80%)Added	SEC filing ↗ May 9, 2025	▾
07	Sumitomo Mitsui Trust Group, Inc. CIK 1475365 · View history	$11.29M 9,565,331 shares	0.01%	-613.17K(-6.00%)Reduced	SEC filing ↗ Apr 25, 2025	▾
08	Amova Asset Management Americas, Inc. CIK 1480751 · View history	$11.19M 9,565,331 shares	0.14%	-613.17K(-6.00%)Reduced	SEC filing ↗ May 7, 2025	▾
09	STATE STREET CORP CIK 93751 · View history	$7.53M 6,379,592 shares	0.00%	-47.38K(-0.70%)Reduced	SEC filing ↗ May 15, 2025	▾
10	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$7.46M 6,317,242 shares	0.00%	+54.32K(+0.90%)Added	SEC filing ↗ May 13, 2025	▾
11	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$5.77M 4,888,612 shares	0.00%	-8.23K(-0.20%)Reduced	SEC filing ↗ May 14, 2025	▾
12	MORGAN STANLEY CIK 895421 · View history	$3.98M 3,371,732 shares	0.00%	-2.28M(-40.30%)Reduced	SEC filing ↗ May 15, 2025	▾
13	Jackson Square Partners, LLC CIK 1605911 · View history	$3.92M 3,320,361 shares	0.53%	-1.79M(-35.00%)Reduced	SEC filing ↗ May 12, 2025	▾
14	Koss-Olinger Consulting, LLC CIK 1861163 · View history	$3.54M 3,000,000 shares	0.30%	+1.00M(+50.00%)Added	SEC filing ↗ May 12, 2025	▾
15	NORTHERN TRUST CORP CIK 73124 · View history	$2.87M 2,434,689 shares	0.00%	-80.14K(-3.20%)Reduced	SEC filing ↗ May 13, 2025	▾
16	UBS Group AG CIK 1610520 · View history	$2.70M 2,284,278 shares	0.00%	+798.26K(+53.70%)Added	SEC filing ↗ May 13, 2025	▾
17	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$2.60M 2,204,044 shares	0.00%	-14.86M(-87.10%)Reduced	SEC filing ↗ May 15, 2025	▾
18	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history	$2.50M 2,121,524 shares	0.00%	-54.73K(-2.50%)Reduced	SEC filing ↗ Sep 15, 2025	▾
19	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$2.20M 1,864,483 shares	0.00%	-2.93M(-61.10%)Reduced	SEC filing ↗ May 16, 2025	▾
20	Senvest Management, LLC CIK 1328785 · View history	$1.29M 1,093,954 shares	0.05%	0(0.00%)Unchanged	SEC filing ↗ May 14, 2025	▾

Showing 20 / 226 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

226

Cancelled or null records excluded

Disclosed shares

225,184,533

Not deduplicated across managers

Disclosed value

$265.56M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

PACIFIC BIOSCIENCES OF CALIFORNIA, INC. · Q1 2025

Explore all 226 reporting institutions.

This page includes 20 of 226 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 226 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"69404D108","quarter":"2025Q1","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.