PACB

Pacific Biosciences Of Calif

-$129.7M

Net Activity

Institutions Holding

228

Popularity Rank

#2577

Avg Weight

0.02%

Total Value

$250.1M

Ownership Trend

228 institutions currently hold PACB, with 105 net buyers and 106 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Neutral

Based on recent trading activity

Net Selling Institutions

106

Net Buying Institutions

105

Key Holders

Key Holders

Top 5 by Value

ARK Investment Management LLCARK Investment Management LLC
$47.9M
BI
BlackRock, Inc.
$33.4M
SG
Softbank Group CORP.
$27.0M
VC
Vanguard Capital Management LLC
$16.9M
SM
Sumitomo Mitsui Trust Group, Inc.
$9.3M

Top 5 by Conviction

BC
Birchview Capital, LP
1.13%
BL
Bourne Lent Asset Management INC
0.46%
ARK Investment Management LLCARK Investment Management LLC
0.37%
SG
Softbank Group CORP.
0.24%
IE
IQ EQ FUND MANAGEMENT (IRELAND) Ltd
0.18%
View all 228 holding institutions

Quarterly Activity

Recent Activity

+$77.4M

Total Buy Value

$219.9M

Total Sell Value

New buy45
Trim74
Add60
Sold out32

105

Net Buyers

106

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

No Form 144 planned sale filings in the last 90 days

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

1

Filings (14d)

Data as of 2026-07-09
2026-07-09

Director Christopher M. Smith resigned from the Pacific Biosciences board on July 8, 2026, effective immediately. The company stated his departure was not linked to any disagreement with the company's operations, policies, or practices.

View Full Filing (SEC EDGAR)

View all Form 8-K filings

FAQ

Who are the top institutional investors holding PACIFIC BIOSCIENCES OF CALIF (PACB)?
Major stakeholders currently include ARK Investment Management LLC ($47.9M), BlackRock, Inc. ($33.4M), Softbank Group CORP. ($27.0M). Based on the latest 13F filings, there are a total of 228 tracked investment funds and institutions maintaining positions in PACB.
What is the overall institutional sentiment toward PACB recently?
Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $129.7M, driven by 105 managers accumulating shares while 106 reduced their exposure.
Which institutions have been selling or reducing their PACB positions?
In the latest period, 74 funds trimmed their holdings, and 32 managers completely exited their positions. The aggregate reported sell value was $219.9M.
Are there any notable investors adding PACB to their portfolios?
Yes, buying activity remains notable. 45 institutions opened new positions in {ticker}, and 60 existing holders added to their shares. The total reported buy value for the quarter amounted to $77.4M.

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