Pacific Biosciences Of California PACB Institutional Ownership

NASDAQ PACB

$1.29 -0.03 (-2.27%)

As of: Sep 9, 2026 · 1:43 PM EDT

Institutions by Trading Activity

221 Institutions

Increased 94 42.5%

Unchanged 50 22.6%

Reduced 77 34.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

62.36%

▲+0.83 pp QoQ

Shares Held by Institutions

193.73Mn

of 310.66Mn outstanding

▲+4.76% QoQ

Shares Outstanding

310.66Mn

116.93Mn held outside 13F filers

Institutional Investors

221

filed 13F for Jun 2026

▼-9 vs prior quarter

Net Shares Added (QoQ)

+8.80Mn

accumulated since last quarter

Value of Holdings

$261.54Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Pacific Biosciences Of California, Inc. (NASDAQ:PACB) appears in 221 institutional 13F filings for the quarter ending June 2026.

Their combined ownership stood at 62.4% of outstanding shares in June 2026, up from 61.5% in March 2026.
Their total shares held in PACB increased 4.76% from the prior quarter, while the number of investors in Pacific Biosciences Of California increased 7.8% year over year.
Of these 221 holders, 94 added to their stakes in Pacific Biosciences Of California, 77 trimmed positions, and 50 made no changes.
Combined, these investors held 193.73Mn shares in PACB for June 2026, up by 8.8Mn shares quarter on quarter, and down 9.54Mn shares year over year.
As of June 30, 2026, the biggest holder of Pacific Biosciences Of California is BlackRock, Inc. at 32.34Mn shares, representing 10.41% of shares outstanding.
The most significant purchases of PACB for the quarter ending June 2026 came from BlackRock, Inc. (7.07Mn), Point72 Asset Management, L.P. (4.5Mn), Sixth Street Partners Management Company, L.P. (2.65Mn), Goldman Sachs Group Inc (2.24Mn), Longaeva Partners L.P. (2.12Mn).
The largest sellers of Pacific Biosciences Of California for the quarter ending June 2026 were ARK Investment Management LLC (6.49Mn), Nuveen, LLC (1.93Mn), RENAISSANCE TECHNOLOGIES LLC (1.52Mn), Morgan Stanley (1.36Mn), JANE STREET GROUP, LLC (1.36Mn).
Per Business Quant data, the top 10 holders of Pacific Biosciences Of California for the quarter ending June 2026 are BlackRock, Inc. (32.34Mn), ARK Investment Management LLC (29.78Mn), Softbank Group Corp. (20.45Mn), VANGUARD CAPITAL MANAGEMENT LLC (13.4Mn), GEODE CAPITAL MANAGEMENT, LLC (7.61Mn), Sumitomo Mitsui Trust Group, Inc. (6.01Mn), Amova Asset Management Americas, Inc. (6.01Mn), State Street Corp (5.96Mn), Point72 Asset Management, L.P. (4.79Mn), TWO SIGMA INVESTMENTS, LP (4.24Mn).

Form 13F Holdings

221 Institutional Holders

Report period 30 Jun, 2026

Total shares held 193.73Mn

Of outstanding 62.36%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	32,339,550	10.41%	▲7,072,121	+27.99%	$54.33Mn
2	ARK Investment Management LLC	0001697748	29,781,416	9.59%	▼6,491,872	-17.90%	$50.03Mn
3	Softbank Group Corp.	0001065521	20,451,570	6.58%	0	0.00%	$34.36Mn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	13,397,934	4.31%	▲620,485	+4.86%	$22.51Mn
5	GEODE CAPITAL MANAGEMENT, LLC	0001214717	7,606,518	2.45%	▲631,252	+9.05%	$12.78Mn
6	Sumitomo Mitsui Trust Group, Inc.	0001475365	6,009,715	1.93%	▼1,028,272	-14.61%	$10.10Mn
6	Amova Asset Management Americas, Inc.	0001480751	6,009,715	1.93%	▼1,028,272	-14.61%	$10.04Mn
7	State Street Corp	0000093751	5,961,175	1.92%	▼160,541	-2.62%	$10.01Mn
8	Point72 Asset Management, L.P.	0001603466	4,787,300	1.54%	▲4,501,600	+1,575.64%	$8.04Mn
9	TWO SIGMA INVESTMENTS, LP	0001179392	4,242,599	1.37%	▲732,986	+20.89%	$7.13Mn
10	D. E. Shaw & Co., Inc.	0001009207	4,208,146	1.35%	▲570,599	+15.69%	$7.07Mn
11	MILLENNIUM MANAGEMENT LLC	0001273087	3,962,442	1.28%	▼929,876	-19.01%	$6.66Mn
12	Goldman Sachs Group Inc	0000886982	3,229,887	1.04%	▲2,241,420	+226.76%	$5.43Mn
13	CITADEL ADVISORS LLC	0001423053	2,845,903	0.92%	▲1,269,852	+80.57%	$4.78Mn
14	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	2,671,916	0.86%	▼196,477	-6.85%	$4.49Mn
15	Sixth Street Partners Management Company, L.P.	0001812095	2,652,298	0.85%	▲2,652,298	0.00%	$4.46Mn
15	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	2,652,298	0.85%	▲246,802	+10.26%	$4.46Mn
16	Northern Trust Corp	0000073124	2,352,786	0.76%	▲221,998	+10.42%	$3.95Mn
17	VANGUARD FIDUCIARY TRUST CO	0000933478	2,187,627	0.70%	▲201,144	+10.13%	$3.68Mn
18	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	2,129,263	0.69%	▲410,098	+23.85%	$3.58Mn

Showing 1 to 20 of 221 holders